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Exercise 3.7. Use the first or second conditional.

CONDITIONAL SENTENCES

( )

 

: 1) , , , 2) , , 3) , , . .

Types of Conditionals

Models

Translation

Zero Conditional

Present Indefinite Present Indefinite  
If I get up late, my Dad gives me a lift to school. , .

First Conditional

Present Indefinite Future Indefinite  
If you give me a message, I shall meet you. , .
Present Indefinite Imperative Mood  
If you want to see me, all me up. , .

Second Conditional

Past Indefinite Should (would, could, might) + Indefinite Infinitive  
If you gave me a message, I should meet you. , (, ).

Third Conditional

Past Perfect Should (would, might, could) + Perfect Infinitive  
If you had given me a message, I should have met you. , ().

Mixed Conditional

Past Perfect Should (would, might, could) + Indefinite Infinitive  
If you had given me a message in advance I should meet you today. - -, .
Past Indefinite Should (would, might, could) + Perfect Infinitive  
If I knew her well, I should have gone to her party yesterday. , .

. Indefinite Perfect Continuous Perfect Continuous.

, :

if

unless

in case ,

provided, provided that

providing, providing that ()

on condition

on condition that ()

suppose, supposing , ; ,

given (, )

granted (that) , ; , .

I. , . if , , . - the Present Simple Tense.

 

Model:

If I finish my homework, I always have a rest , .

Exercise 1. 1. Translate the following sentences into Russian.

1. If you go to America, you have to have a visa. You can get one from the Embassy. 2. If I read too much, I get a headache. 3. If you drop an egg, it breaks. 4. If you spend over $ 20 at that supermarket, you get a 5% discount. 5. If you boil water, it evaporates. 6. If the soil is dry, practically very little, if any, water absorption takes place. 7. If glycogen is in solution, and if there is some sodium chloride iodide present, the glycogen colors itself a deep brownishred color. 8. Provided the stimulating current is localized to one region, the form of burst responses is independent of stimulus strength.

Exercise 1.2. Translate the following sentences into English.

1. , . 2. , . 3. , . 4. , . 5. , , . 6. , . 7. , . 8. , . 9. , . 10. , .

 

II. I , , , . - the Future Simple Tense, the Present Simple Tense.

Model:

I ll give you the book on condition (that) you return it next week. , .

. will + the Indefinite Infinitive. will .

Model:

We shall be grateful if you will send us your catalogue of Diesel engines. , ( ) .

Exercise 2.1. Paraphrase the sentences according to the example.

Example: Come home in time or else Mother will be angry with you.

If you dont come home in time, Mother will be angry with you.

1. Listen to the teacher attentively or else you wont understand anything. 2. Work at the language laboratory or else you wont improve your intonation. 3. Do your homework properly or else the teacher wont be pleased with you. 4. Read these books or else you wont be able to prepare a good report. 5. Speak English every day or else you wont master it. 6. Help her with English or else she wont pass her exam. 7. Do your best or else you wont catch up with the group. 8. Explain the rule to him or else hell make more mistakes. 9. Put down your homework or else you wont remember it. 10. Lend her some money or else she wont buy this dictionary.

Exercise 2.2. Match a line in A with a line in B and a line in C.

A B C
If we can afford it, Ill be late for school. You can put my supper in the oven.
If you go to Paris, step aside. The views are fantastic.
If I dont hear from you tomorrow, tell him I never want to see him again. The one we have now is very unreliable.
If the pain gets too bad, well buy a new car soon. That should help.
If the bus doesnt come soon, Ill let you know. Thatll be the second time this week.
If you cant see what you want in the window, take another dose of painkillers. And dont tell him where Ive gone!
If Im going to be late, you must go up the Eiffel Tower. I need to speak to you again soon.
If Peter rings, Ill expect a call the next day. Here are lots more things to see in the shop.

Exercise 2.3. Complete the following sentences.

1. If she cuts her hair short . 2. If the boy takes after his father . 3. If he grows a beard . 4. If her dress is ready in time for the party . 5. If she wears her new dress . 6. If the woman pays more attention to her appearance . 7. If you arrange your hair in a different way . 8. If the girl makes up heavily . 9. If you describe your sister to me . 10. If you try these shoes on .

Exercise 2.4. Translate the sentences into Russian.

A.

1.I shall go to the theatre if I buy tickets. 2. If she doesnt come in time, theyll be late for the concert. 3. If I get tickets for the evening performance in advance, Ill ring you up. 4. He will write a letter today if he has free time. 5. Will you call me up if you come back early? 6. If you dont tell me the truth, I shall never speak to you. 7. If you go to bed immediately, well take you to the cinema tomorrow. 8. If they take a taxi, they wont miss the train. 9. If you lend him the book, hell read it quickly. 10. The child will catch cold if he stays longer in the wind. 11. Ill finish the work in time if you stop interrupting me. 12. If I get money, Ill buy this watch.

B.

1. In case you find some inconsistencies in my treating the subject, let me know what they are. 2. If similar phenomena occur in other organisms, we may expect to find DNA synthesis as a regular nuclear feature, independent of mitosis or polyploidization. 3. Unless mold spores have an opportunity to germinate, they will die. 4. If this somewhat surprising explanation is confirmed, it may challenge the idea of electrocardiographic coronary insufficiency. 5. The core cable theory will be rejected unless reasons are produced for believing that the divergencies are due to the sheath. 6. Unless purely artificial limits are drawn, the designation alga will include all holophytic organisms. 7. The chilled slices will swell unless they are placed in medium of almost twice the osmolar concentration of the extracellular fluids. 8. If a direct current voltage is used, the dipoles in the liquid will have a long time in which to line up with the field. 9. The cells will shrink if the osmolarity of their cytoplasm is reduced to one-half or less of normal. 10. If we use the method I propose for determining the valency of species, we shall of course obtain an entirely different result, which, however, is certain to vary with size of the areas concerned.

Exercise 2.5. Translate the following sentences into English.

1. , . 2. , . 3. , . 4. , . 5. , . 6. , ? 7. , . 8. , . 9. , . 10. , . 11. , . 12. , ? 13. , .

 

III. II . (.. ). should (would,could, might) + the Indefinite Infinitive, the Past Simple Tense. to be were . was .

Model:

If my brother had time now, he would help them. , .

. : 1) - were to + the Indefinite Infinitive, - would (should, could) + the Indefinite Infinitive, 2) - should + the Indefinite Infinitive, the Future Indefinite Tense ( ), - should (would) + the Indefinite Infinitive. : , , , , , . 1) ,

Models:

If he should come in the morning, ask him to wait. , , .
If I were to pass the exam, everyone would be astonished. , , , .

Exercise 3.1. Put the verbs in brackets into the correct form.

1. If she of the article now, I it to the newspaper (approve, send). 2. If he , they the letter in the wall newspaper (want, publish). 3. If the work twice as difficult, I to do it (be, refuse). 4. If we him to go on with the experiment, we never any peace (allow, have). 5. If it summer, we for a run in the country (be, go). 6. If he himself, my answer the same (come, be). 7. If our talk my brother who is working in the next room, I you so myself (disturb, tell). 8. If you in my place, tell me, what you (be, do)? 9. If my friend to me that way, I offended (speak, feel). 10. If he ordinary, the girl him (be, not love). 11. If it oftener, it good for the garden (rain, be).

Exercise 3.2. Make second conditional sentences for the following situations.

1. We wont have a holiday because we havent got any money. 2. I dont know the answer, so I cant tell you. 3. There are no eggs, so I wont make an omelette. 4. We have three children, so we wont take a year off and travel the world. 5. Im not very clever, so I wont be a doctor. 6. He spends all his money gambling. He isnt a wealthy man. 7. I havent got any spare time. I wont learn Russian. 8. Jim works very hard. He has no time to spend with his family. 9. Ive got a headache. I cant go swimming. 10. We havent got a big house. We cant invite friends to stay.

Exercise 3.3. Answer the following questions.

1. What would you write about if you were a writer? 2. What would you do if it drizzled? If it looked like raining? if the weather were fine and frosty? 3. What would you be doing if you were at home? in the library? in the kitchen? in the street? 4. Who would you consult if you fell ill? 5. Who would you like to be nursed by if you were ill? 6. Who would you complain to if you had a toothache? 7. Where would you be treated if you had a catching disease?

Exercise 3.4. Translate the following sentences into Russian.

A.

1. What would you do if you won a million pounds? 2. They would be offended if I didnt go to the party. 3. I would be very frightened if somebody pointed a gun at me. 4. If you took more exercise, youd probably feel healthier. 5. If it stopped raining, we could go out. 6. If you were more attentive, you wouldnt make so many mistakes. 7. If I were interested in the topic, Id choose it for my course-paper. 8. If she worked regularly, she wouldnt have any difficulties with English. 9. If I were you, Id study Spanish. 10. If you were practising hard, you would improve your intonation. 11. If you didnt pass the exam, would you take it again?

B.

1. If this soil were friable, the roots would grow more freely. 2. If it were not for the roots, the plant would not be able to absorb water and mineral substances. 3. A seed would not germinate if the soil were not warm enough. 4. If the soil were not fine, the plant would not develop so quickly. 5. If there were too much water in the soil, it would cause rotting of the seeds. 6. If I were a botanist, I should know the difference between these roots. 7. If this new method of work were applied, we should succeed in obtaining better results. 8. If this were not so, then the properties would be described by test results as in the case at room temperature. 9. If the ozone were suddenly withdrawn from the atmosphere, we should all be killed within a few minutes by the suns ultra-violet light. 10. If there were no air, the stone and the piece of paper would fall together. 11. If the air molecules were stationary, we should expect the smoke particles to remain stationary also. 12. These properties would fit them very precisely to act as mediators of the effects of autonomic impulses to effector cells if there was any acceptable evidence of their being liberated at the nerve endings. 13. If the action of light were direct, de-epoxidation under all light intensities would be expected to cease when light was turned off. 14. If the rate was higher than it was, the excess orthophosphate would be expected to appear in the medium since the pyrophosphatase is located at or on the cell wall. 15. This would be the case of course if the intermediate states were less stable than either one of the symmetrical states. 16. If the direct detection of mutations occurring in nucleic acids were possible, this section would be of less importance for molecular geneticists. 17. There would be a mean negativity if an action potential caused depolarization. 18. If a systematist were seeking a type species for the whole assemblage, he would be compelled to choose vaccinia virus. 19. If cells were superinfected with partially adapted particles, recombination might lead to emergence of virulent progeny. 20. The results would be hard to explain if we assumed that this form of afterdischarge were due to any of the other mechanisms. 21. Suppose that stimulation of point A within the motor cortex produced a movement while some stimulus applied to a remote point E outside the motor cortex would produce none. 22. If this were true and followed the above equation, then there would be some point of which the external concentrations would be identical to the internal K+ concentrations. 23. If no such repair occurred, the effect of successive doses would be strictly additive, which is seldom found to be the case. 24. There is every reason to believe that if one could obtain an absolutely pure gas, an ion in this gas would have a unique mobility. 25. To put the question in another way, how can the presence of a slit through which a photon does not go prevent that proton from reaching a part of the screen it would be likely to reach if that slit were closed?

C.

1. We dont expect him to come, but if he should come, ask him to wait. 2. If all the people of the world should count the atoms in a drop of water, they would not be able to finish their work even in ten thousand years. 3. If you should see Ann, could you ask her to call me? 4. If you should happen to change your mind, let me know. 5. If we should stand motionless and hold a weight in our arms, we would not be performing work in physical sense of the term. 6. If this substance should be a mixture, it would decompose. 7. If there should be an abundance of nutrients, a thick myceliae mat will be formed. 8. If all the individuals of an assemblage should be similar, then a serious change in some environmental value would have the most serious consequences. 9. If this response should travel across the cortex, it will cause relative negativity. 10. If water should be added to these lipids, the X-ray periods will be enlarged. 11. If one should ever find ticks with their heads buried in the skin, it would be better not to try to remove them. 12. If later research should show a relationship between these clinical phenomena and experimental depression, then the latter would immediately acquire great academic importance. 13. If you should get this job, I would be able to pay off my debts. 14. If there should be room for you in the car, I would give you a lift. 15. If you should find my book, pop it in the post to me. 16. If you should see a ghost, what would you do? 17. If you should give this matter serious attention, I would be grateful.

D.

1. If we were to remove one electron by some means, a net positive charge would be left. 2. If you were to give up smoking, you would stop coughing. 3. If a nuclear war were to start, the whole world would be destroyed. 4. If you were to find that your friend had betrayed you, what would you do? 5. If the boss were to find out her background, he would never employ her. 6. If I were to find a well-paid job, my whole life style would be changed. 7. If you were to fix the car this weekend, you could go for a drive. 8. If the police were to look in the attic, they would find him. 9. If our football team were to win the game, we would be invited to take part in the country championship. 10. If you were to see the eruption of a volcano, you would never forget the event. 11. If I were to get a driving-licence at last, I would buy a car immediately.

Exercise 3.5. Translate the following sentences into English.

1. , . 2. , , . 3. . 4. , . 5. , . 6. , . 7. , . 8. , , . 9. , . 10. , ? 11. , . 12. , ? 13. . 14. , .

Exercise 3. 6. Translate the following sentences. Follow the model given in the note.

1. , , , . 2. , , . 3. , . 4. , , . 5. , . 6. , , . 7. , , . 8. , , . 9. , ? 10. , - . 11. , , , , . 12. , , , . 13. , , , . 14. , , , . 15. , , , . 16. , , , . 17. , , , . 18. , , , . 19. , , , . 20. , , , , .

Exercise 3.7. Use the first or second conditional.

1. If it (rain) this weekend, we (not be able) to play tennis. 2. Give me Peters letter. If I (see) him, I (give) it to him. 3. I have to work about 80 hours a week, so Im very busy. But if I (have) any spare time, I (take up) a sport like golf. 4. If I (be) taller, I (can) be a policeman, but Im too short. 5. Please start your meal. If you (not have) your soup now, it (go) cold. 6. What noisy neighbours youve got! If my neighbours (be) as bad as your, I (go) crazy. 7. If you (have) any problems, let me know and I (come) and help you straight away. 8. Youre a brilliant cook! If I (can) cook as well as you, I (open) a restaurant. 9. If there (be) some nice fish in the supermarket, you (buy) some for supper? 10. We have mice in the kitchen. If you (have) a cat, the mice soon (disappear).

Exercise 3.8. Correct the mistakes.

1. Ill make some cake if he will come. 2. If Ill see Peter, Ill tell him to phone you. 3. If you dont be careful, youll lose your money. 4. If Ill go back to my country, Ill write to you. 5. If I could travel round the world, Ill go to Hawaii. 6. If you would come from my country, you would understand what Im saying.

 

IV. III , , , II . should (would, might, could) + the Perfect Infinitive, the Past Perfect Tense.

Model:

If I had seen him yesterday, I should have asked him about it. , .

Exercise 4.1. Translate the following sentences into Russian.

A.

1. She wouldnt have come if she hadnt been invited. 2. We would not have lost our way if the night had not been so dark. 3. They would have sent us some information if there had been anything to send. 4. Youd have found your fountain-pen if you had looked for it better. 5. Id have recognized him at once if it hadnt been so dark in the room. 6. The accident wouldnt have happened if the driver had observed the traffic rules. 7. She would have made toasts for them if something hadnt gone wrong with the gas-stove. 8. If I had consulted my own interests, Id never have come. 9. If it hadnt rained so beastly yesterday, we shouldnt have stayed at home. 10. If he had experimented alone, he would never have finished the work. 11. If no one had come, they would have postponed the meeting. 12. If you hadnt interrupted him, he would have continued his work.

B.

1. Their communication would have been more vivid if it had been illustrated with examples. 2. If this statement had not been assumed, K would have been found to be proportional to A2/a. 3. If anoxia had hindered active expulsion of water, it would have led to excessive accumulation in cells. 4. Two antidromic volleys could have responded if they had been separated by a time interval less than 50 msec. 5. If the F zygote had been similarly poisoned, a viable zygote might not have been formed. 6. The migration of the placental animals into Australia must have been blocked and this could only have happened if Australia had become isolated from the rest of the world. 7. One might never have known that strain A carried a symbiotic phase unless it had been mixed with the susceptible strain B and found to lyse it. 8. If we had given the culture the very high dose initially, we should most likely have killed it completely. 9. If the potential had been suddenly increased, very little current would have flown through the membrane. 10. If the isolated frog-skin had been short-circuited, the current generated by the skin would have been identical with Na influx.

Exercise 4.2. Put the verbs in brackets into the correct form. Refer the sentences to the Past.

1. If he his fathers advice, he himself in that miserable state (follow, not find). 2. If my friend there, everything different (be, be). 3. He this post if it vacant (offer, be). 4. If she this piece of painting, she it (like, buy). 5. If anything , he you know (happen, let). 6. If the girl the telephone call, she never the good news (not answer, hear). 7. If they dictionaries, they the article correctly (bring, can translate). 8. If there a strong wind, it impossible to swim in the lake (be, be). 9. If you to the laboratory in time, we our experiment (come, begin). 10. He his train if you him more (miss, keep).

Exercise 4.3. Change the following sentences using Conditionals of the third type. Follow the example.

Example: You wouldnt say so if you only saw her (then).

You wouldnt have said so if you only had seen her then.

1. If I had money, I should go to Moscow to see its sights (last winter). 2. If he were here, he would tell us what to do (the day before). 3. If we stayed a little longer, wed meet him (yesterday). 4. If you worked regularly, youd get better marks (last term). 5. If they had a car, they would drive to the South (last summer). 6. She would come if it didnt rain (yesterday). 7. He would invite me to the theatre if he had an extra ticket (last Sunday). 8. Id be disappointed if you didnt come (on that day). 9. If he knew the facts, he would help me (last night).

Exercise 4.4. Complete the following sentences.

A.

1. We should have written the exercise if . 2. Id have chosen that profession if . 3. The experiment would have ended in failure if . 4. You would never have met him if . 5. We should have missed the lecture if . 6. They would have laughed at her if . 7. I should have stayed alone if . 8. Would you have believed if . 9. Nothing would have gone wrong with the pen if .

B.

1. if you had chosen your friends more carefully. 2. if I hadnt forgotten his address. 3. if she had gone there at once. 4. if we hadnt left so early. 5. if they had looked through the article. 6. if you had followed my advice. 7. if they had seen that picture. 8. if you hadnt failed at the exam. 9. if I hadnt spoken with your teacher last week. 10. if they hadnt sent the girl away.

Exercise 4.5. Translate the following sentences into English.

1. , . 2. , . 3. , . 4. , . 5. , . 6. , . 7. , . 8. , . 9. , . 10. , . 11. , . 12. , . 13. , . 14. , . 15. , . 16. , . 17. , .

V. . , .

Models:

If you had worked harder last year, you would know English well now. , .
If he knew English well, he would have translated the article without difficulty yesterday. , .

Exercise 5.1. Change the sentences using conditionals. Follow the example.

Example: My brother is put out. He lost his new camera.

My brother wouldnt be put out if he hadnt lost his new camera.

1. You look sun-tanned. You have been to the South. 2. I invited Helen to my birthday party. She is one of my best friends. 3. She refuses to go with us. She hasnt done her homework. 4. I didnt go to the concert. I dont like pop-music. 5. He didnt take part in the discussion last week. He does not speak English. 6. I cant say anything on the subject. I havent read the book. 7. She missed the train and she is upset.

Exercise 5.2. Complete the following sentences.

1. You wouldnt have a sore throat ( ). 2. He wouldnt be in hospital ( ). 3. We shouldnt feel cold ( ). 4. She wouldnt have a headache ( ). 5. The girl wouldnt walk ( ). 6. Youd have found the book sooner ( ). 7. They wouldnt have furnished the room in such a way ( ). 8. He would have repaired the radio-set long ago ( ). 9. You wouldnt have said that ( ).

Exercise 5. 3. Translate the following sentences into Russian.

1. I would be angry if you had brought the company here. 2. You would be well now if you had consulted the doctor in time. 3. She wouldnt be pale and thin if she hadnt been ill quite for a while. 4. He would know now what to do if he had followed his fathers advice. 5. Just think, if Id bought those pictures, then I should be a rich man now. 6. If you had gone to see them yesterday, youd know now what the matter is. 7. If Janet had had a lot of practice in English last year, she would speak it perfectly now. 8. I shouldnt be angry with you if you had answered my questions properly. 9. If he were a kind man, he wouldnt have spoken to the girl in such a way. 10. If I knew her well, I should have gone to her party too. 11. If you had a better command of English, you would have translated the text better.

Exercise 5.4. Translate the following sentences into English.

1. , . 2. , . 3. , . 4. , . 5. , . 6. , . 7. , . 8. , . 9. , . 10. , . 11. , . 12. , . 13. , . 14. , . 15. , . 16. , . 17. , . 18. , .

 

VI. if . II III . , .. were, had, could, should . , .

Models:

Had I time, I should go to the club. , .
Could he come tonight, we should be very glad. , .

Exercise 6.1. Omit the conjunction in the following sentences making all the necessary changes.

1. If I had time, I should study French. 2. If you should find them, kindly let me know. 3. If they had called at the office yesterday, they would have found me there. 4. If I had seen him yesterday, I should have told him about it. 5. If he were here, I should speak to him. 6. If he were in town, he would help us. 7. If he should come, tell him to wait. 8. If I had enough money, I would travel. 9. If I were you, I should go there immediately. 10. The accident might not have occurred if they had been more careful. 11. If I were in his place, I should refuse. 12. If you had seen him, you wouldnt have recognized him.

Exercise 6. 2. Translate the following sentences into Russian.

1. Were he a sensible boy, hed behave in a different way. 2. Were I in your place, Id do the same. 3. Were she one of my best friends, Id share my secrets with her. 4. Werent it raining, the children wouldnt be staying at home. 5. Had she the time, she would be able to join the excursion. 6. Had she many children, she wouldnt be so lonely. 7. Had we been told about it yesterday, wed have come earlier. 8. Had she known he would be here, she wouldnt have gone away. 9. I dont know what you would have done, had you been in my place. 10. Were she cleverer, she wouldnt have said such a silly thing. 11. Were Mum with us, she wouldnt have let you do so. 12. Hadnt he been badly wounded, he would have reached the other bank sooner. 13. Were the intensity of all the beams alike, we should get an opposite result. 14. The heating elements can be easily exchanged, should the need arise. 15. Were the Earth stationary, the movements of the atmosphere would he controlled almost entirely by temperature differences. 16. Were the observations rigorously correct and the values of the unknown quantities finally determined affected by no error, they would be many times more accurate than we can hope to make them.

Exercise 6.3. Translate and comment on the types of the following Conditionals.

1. If the intracellular K were replaced by choline, no K uptake could take place afterwards. 2. Were the intracellular K replaced by choline, no K uptake could take place. 3. If the potential had been suddenly increased, very little current would have flown through the membrane. 4. Had the potential been suddenly increased, very little current would have flown through the membrane. 5. If water should be added to these lipids, the x-ray periods will be enlarged. 6. Should water be added to these lipids, the x-ray periods will be enlarged. 7. The surge of ingoing current would be reversed if Na in the medium were replaced by choline. 8. The surge of ingoing current would be reversed, were Na in the medium replaced by choline. 9. Stimulation would produce different results if some of the experimental conditions could be changed. 10. Stimulation would produce different results, could some of the experimental conditions be changed. 11. We shall be greatly surprised, should the deflection increase at all. 12. Had we any reasons, we might refuse the offer of the Columbia group. 13. Could such an ion be in the steady state, it would be distributed according to a Donnan equilibrium. 14. Had it not been for the powerful microscopes, our investigation of minute particles of the living organism would have been limited.

Exercise 6.4. Complete the following sentences.

1. ( ) Id have spoken to him. 2. ( ) wed have had a sail by sea. 3. ( ) they would come to see us. 4. ( ) she could go to the Crimea. 5. ( ) wed invite him oftener. 6. ( ) everybody would have turned away from him. 7. ( ) we should cross it here.

Exercise 6.5. Translate the following sentences into English.

1. , . 2. , . 3. , . 4. , . 5. , . 6. , . 7. , . 8. , . 9. , . 10. , . 11. , .

VII. , , : 1) if it were not (if it had not been) for , 2) but for + (). .

Models:

If it were not for his friend (but for his friend), he would feel very lonely in this big city. , .
If it had not been for the rain (but for the rain), he would have gone to the country on Saturday. , .

Exercise 7. 1. Translate the following sentences into Russian.

A.

1. If it had not been for his advice, you would have wasted a lot of time. 2. But for the late hour Id stay a little longer. 3. The child wouldnt have begun crying but for your severe look. 4. But for your help I should never have finished my work. 5. Nobody would have noticed him but for his innumerable questions. 6. The girl would have lost her job but for her fathers help. 7. But for the girl he would have left immediately.

B.

1. But for the very slow growth rates of lichens and our ignorance of their natural modes of reproduction, their deliberate sowing and cultivation would be possible. 2. Since the DNA double helix is only about 20A thick, this strand, were it not for its division into sections independent of one another, would have a slenderness ratio of 10 million. 3. The species would not have developed normally had it not been for the restoration of normal conditions. 4. Different gene symbols are used in different plants for the same biochemical effect. Plainly, the situation would be much clearer but for the quantity of symbols used for the same effect. 5. Were it not for the ability of nonchloroplyllous plants to decompose waste organic material, the earth in a very short time would be covered to an astonishing depth with an accumulation of vegetable debris. 6. The latter explanation might have been correct but for the presence of intact virus during the lag period. 7. But for the striking changes in the structures of the matter one could have predicted the resulting concentration. 8. But for the use of serial sections and the phyllotactic leaf-trace relationship the procambium could be missed. 9. But for the experimental contribution of Professor T. we should have ascribed this phenomenon to the electrostatic repulsion of similarly charged molecules. 10. Some investigators go so far as to state that if it were not for bacteria and allied microorganisms, you and I might not even be here. 11. The work of Wieland might have remained of academic interest if it had not been for the discovery in 1945 that an important vitamin is a pterin-containing compound.

Exercise 7.2. Translate the following sentences into English.

1. , . 2. , . 3. , . 4. , , . 5. , . 6. , . 7. , . 8. , , . 9. , . 10. , . 11. , . 12. , . 13. , .

 

VIII. even if, even though, . , , , .

Models:

Even if he had known about it, he wouldnt have told us anything. , .
Even if you were right I would not defend you. , .

Exercise 8.1. Put the verbs in brackets into the correct form and translate the sentences into Russian.

1. If you arent going to live in the house why you (not sell) it? Even if I (have) a house I couldnt use, I (not sell) it. 2. Even if I (realize) how awful the job was going to be, I (accept) it. I didnt have another way out. 3. Tom: The plane was on fire so we baled out. Ann: I dont think I (have) the nerve to do that even if the plane (be) on fire. 4. Even if we (work) all night, we (not finish) in time. 5. Even if someone (ring) my doorbell at 3 a.m., I (be) very unwillingly to open the door. 6. Even if I (have) heaps of money, I (not drink) champagne with every meal. 7. I recognized him at once. Even if he (wear) dark glasses, I (recognize) him immediately. 8. Even if you had been there, what you (do)? 9. I was so tired yesterday. Even if I (have) more time, I (not have) talks with you. 10. Even if I (want) to, I (can do) nothing about it now. 11. Weve got only ten minutes left. We (not make) it even if we (hurry up). 12. I (cannot go) today even if you (ask) me.

Exercise 8.2.Translate the following sentences into English.

1. , . 2. , -. 3. , . 4. , . 5. , . 6. . , . 7. , . 8. , . 9. , . 10. 10 . , . 11. , .

REVIEW EXERCISES

 

Exercise 1. Read the following sentences. Define the types of Conditionals and translate them into Russian.

1. Marked change in RNAP of the system would be expected if the DNAP increase were to reflect the increase in bacterial number. 2. Over most of the area of England, there is little doubt, oak forest would again extend, perhaps in a couple of centuries, if the country were to be completely abandoned by man and his flocks and herds. 3. If fungi and bacteria were not to be active in the destruction of leaves at the end of the growing season, the dead leaves would fall to the ground and eventually would accumulate to such an extent that the tree might be completely covered. 4. If account is taken of the illustration given in figure 9, both the principles will apply. 5. Provided a fourth molecule of water were added to the left in figure 17, an almost equilateral triangle would appear. 6. Were several small bivalents present, they were to be found in the center of the plate. 7. If we knew how the gene arose, we probably should know how life itself arose from the inorganic. 8. Unless cystitis sets in, which is frequently the case, the animal may live in spite of the disturbance of some functions. 9. Were the H-O-H angle equal to 120o, this could give rise to a monomolecular layer of H2O molecules. 10. On condition all these factors were taken into account, the 1.4 axis would be calculated as 5.15A, rather than 5.94A. 11. Were it not for the ability of nonchlorophyllous plants to decompose waste organic material, the earth in a very short time would be covered to an astonishing depth with an accumulation of vegetable debris. 12. Provided all particles keep as far away as possible from their neighbours, a regular arrangement will necessarily result owing to particle morphology. 13. This sort of thing would hardly be expected, were crossing over to take place in the ordinary manner as, for example, in Drosophila. 14. If we were asked what influence a given gene had, all by itself, on development, we would not be able to answer the question. 15. Should evisceration be performed in addition to the administration of an anesthetic, the following course of events may be envisaged. 16. If we had given the culture the very high dose initially, we should most likely have killed it completely, since there would have been little likelihood that the original culture would have contained a cell in which several mutations had occurred at the same time. 17. This persistence of added or lost chromosomal material would hardly be expected provided the chromosome number were determined by the nature of the cell. 18. This is precisely the result, one would expect on the basis of chromosomal segregation during gametogenesis provided the genes in question resided on different chromosomes. 19. No such degree of differentiation and specialization of tissues as we see in higher organisms could be attained, were it not for adequate means of keeping various parts fully correlated in action.

Exercise 2. Choose the most suitable verb form in each sentence.

1. If the machine stop/will stop, you press/will press this button.

2. I cant understand what he sees in her! If anyone treats/will treat/treated me like that, I am/will be/would be extremely angry!

3. If you help/helped me with this exercise, I will/would do the same for you one day.

4. According to the timetable, if the train leaves/left on time, we will/would arrive at 5.30.

5. If it is/will be fine tomorrow, we go/will go to the coast.

6. If we find/found a taxi, we will get/would get there before the play starts.

7. Its quite simple really. If you take/will take/took these tablets every day, then you lose/will lose/lost/would lose weight.

8. I dont like this flat. I think I am/I will be/Id be happier if I live/will live/would live/lived in a house in the country.

9. I dont know how to play baseball, but Im sure that if I will do/did, I play/will play/would play a lot better than anyone in this awful team!

10. If I phone/will phone/phoned you tonight, are you/will you be/would you be in?

11. Why didnt you tell me? If you told/had told me, I had helped/would have helped you.

12. If Bill didnt steal/hadnt stolen the car, he wasnt/wouldnt be/hadnt been in prison now.

13. If Ann wasnt driving/didnt drive/hadnt driven so fast, her car didnt crash/wouldnt crash/wouldnt have crashed into a tree.

14. Let me give you some advice. If you smoked/would smoke/had smoked less, you didnt feel/wouldnt feel/wouldnt have felt so tired.

15. What bad luck! If Alan didnt fall/hadnt fallen/wouldnt fall over, he won/would win/would have won the race.

16. If you invited/had invited me last week, I was able/had been able/would have been able to come.

17. Im sure your letter hasnt arrived yet. If it came/had come, Im sure I noticed/had noticed/would have noticed it.

18. We have a suggestion to make. How do you feel/would you feel if we offered/would offer/had offered you the job of assistant manager?

19. If you lent/had lent us the money, we paid/would pay/had paid you back next week.

20. Terry never catches anything when he goes fishing. And if he catches/caught/had caught a fish, he throws/would throw it back!

Exercise 3. Open the brackets using the verbs in the necessary form.

1. If she (to ask) me yesterday, I should certainly have told her all about it. 2. If you (to do) your morning exercises every day, your health would be much better. 3. If he is not very busy, he (to agree) to go to the museum with us. 4. If I (not to be) present at the lesson, I should not have understood this difficult rule. 5. If he reads fifty pages every day, his vocabulary (to increase) greatly. 6. If they (to know) it before, they would have taken measures. 7. If I (to get) this book, I shall be happy. 8. If you really loved music, you (to go) to the Philharmonic much more often. 9. If you had not wasted so much time, you (not to miss) the train. 10. If you (not to miss) the train, you would have arrived in time. 11. You (not to miss) the teachers explanation if you had arrived in time. 12. You would have understood the rule if you (not to miss) the teacher's explanation. 13. If you (to understand) the rule, you would have written the test paper successfully. 14. If you had written the test paper successfully, you (not to get) an unsatisfactory mark. 15. Your mother (not to scold) you if you had not got an unsatisfactory mark. 16. If your mother (not to scold) you, you would have felt happier.

Exercise 4. Use the verbs in appropriate forms.

1. If you (to ring) me up, I shall tell you a secret. 2. If you (to be) a poet, you would write beautiful poetry. 3. If he did not read so much, he (not to know) English literature so well. 4. If he (to come) to our house yesterday, he would have met his friend. 5. If he (not to pass) his examination, he will not get a scholarship. 6. If she (not to help) me, I should have been in a very difficult situation. 7. My father would have more free time if he (not to read) so many newspapers. 8. If only you had let me know, I (to go) there immediately. 9. If you (not to buy) coffee, we shall drink tea. 10. If he is free tomorrow, he certainly (to come) to our party. 11. My brother would not have missed so many lessons if he (not to hurt) his leg. 12. If my friend (to work) in my office, we should meet every day. 13. If you spoke English every day, you (to improve) your language skills. 14. If she (to return) earlier, she would have been able to see him before he left. 15. If these shoes were not too big for me, I (to buy) them.

Exercise 5. Use the verbs in brackets in the necessary forms.

1. I should be very glad if he (to come) to my place. 2. If he (to live) in St. Petersburg, he would go to the Hermitage every week. 3. If you (to go) to the theatre with us last week, you would have enjoyed the evening. 4. You wont understand the rule if you (not to listen) to the teacher. 5. If he werent such a bookworm, he (not to spend) so much time sitting in the library. 6. I should not have bought the car if my friend (not to lend) me money. 7. If he did not live in St. Petersburg, we (not to meet) so often. 8. If he had warned me, I (to do) the work in time. 9. If my brother (to be) in trouble, I shall help him, of course. 10. If I dont manage to finish my report today, I (to stay) at home tomorrow. 11. If she were more careful about her diet, she (not to be) so stout. 12. You would not feel so bad if you (not to smoke) too much. 13. If he (to learn) the poem, he would not have got a bad mark. 14. If you gave me your dictionary for a couple of days, I (to translate) this text. 15. If I (to be) a musician, I should be very happy. 16. If Barbara (to get) up at half past eight, she would have been late for school. 17. If you had not put the cup on the edge of the table, it (not to get) broken.

Exercise 6. Change the sentences using Conditionals.

1. You did not ring me up, so I did not know you were in trouble. If... 2. You left the child alone in the room, so he hurt himself. If... 3. They spent a year in the tropics, so they got very sun-tanned. If... 4. It rained heavily, so we got drenched to the skin. If... 5. Why didnt you watch the cat? It ate all the fish. If... 6. A huge black cloud appeared from behind the forest, so we had to turn back and hurry home. If... 7. The travellers had no camera with them, so they could not take photos of the beautiful scenery. If... 8. There was no sugar left, so we had to go to the shop late in the evening. If... 9. This house is very nice and comfortable, but it is not very good for living because it is situated close to a chemical plant and the air around is very bad. If... 10. He is an excellent specialist, but I cannot ask his advice because I am not acquainted with him. If... 11. You cannot enjoy this merry evening party because you have toothache. If... 12. You know the material well enough, but you are very absent-minded, and thats why you always make many mistakes. If... 13. We shall not go to see them because it is very late. If... 14. Naturally she was angry because you were in her way. If...

Exercise 7. Change the sentences and use Conditionals.

1. always gets top marks in mathematics because it is his favourite subject and he works a lot at it. If... 2. I did not translate the article yesterday because I had no dictionary. If... 3. We lost our way because the night was pitch-dark. If... 4. The box was so heavy that I could not carry it. Thats why I took a taxi. If... 5. I had a bad headache yesterday, thats why I did not come to see you. If... 6. The ship was sailing near the coast, thats why it struck a rock. If... 7. He was not in town, therefore he was not present at our meeting. If... 8. The pavement was so slippery that I fell and hurt my leg. If... 9. They made a fire, and the frightened wolves ran away. If... 10. It is late, and I have to go home. If... 11. I was expecting my friend to come, thats why I could not go to the cinema with you. If... 12. The sea is rough, and we cannot sail to the island. If... 13. He is busy and does not come to see us. If... 14. The girl did not study well last year and received bad marks. If... 15. He broke his bicycle and so he did not go to the country. If... 16. He speaks English badly: he has no practice. If...

Exercise 8. Make up conditional sentences. Don't forget about the mixed type of Conditionals.

1. is not a first-class sportsman now because he did not train enough last year. If... 2. The pupils did not understand the homework because they were inattentive. If... 3. The pupils worked hard and did well in their examinations. If... 4. She wont try to enter the foreign languages department because she is not good at foreign languages. If... 5. I shall go to the dentist because I have a toothache. If... 6. He is groaning with pain now because he did not go to the dentist to have his tooth filled. If... 7. She does not go to the polyclinic because she does not need any treatment. If... 8. He will not go to see the play as he was present at the dress rehearsal. If... 9. He went to Moscow specially to hear this famous singer because he is fond of him. If... 10. We did not go to the refreshment room to have a glass of lemonade because we were not thirsty. If... 11. She could not mend her dress herself because she had no needle. If...

Exercise 9. Translate the following sentences into English.

1. , . 2. , . 3. , . 4. , . 5. , . 6. , . 7. , . 8. , . 9. , , . 10. , . 11. , . 12. , , . 13. , . 14. , .

Exercise 10. Translate into English.

1. , . 2. , . 3. , ? 4. , , . 5. ! , . 6. , . 7. , . 8. , , . 9. , . 10. , . 11. , . 12. , . 13. , .

Exercise 11. Translate into English.

1. , . 2. , . 3. , . 4. , . 5. , . 6. , . 7. , . 8. , .



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