1. I wasn’t sure how she would react because I … her long.
a) didn’t know
b) wasn’t knowing
c) hadn’t known
d) don’t know
2. I wanted to say goodbye to Jerry but he…
a) was already left
b) has already left
c) had already left
d) already left
3. He…his consulting room by this time tomorrow.
a) will leave
b) will have left
c) leaves
d) is leaving
4. When we got to the university I realized that I…my student’s card at home.
a) was left
b) had left
c) left
d) was leaving
5. All wisdom teeth…by early twenties.
a) were erupted
b) had erupted
c) will have erupted
d) will erupt
6. Jack … chess before, so I showed him how to play.
a) didn’t play
b) wasn’t playing
c) hadn’t played
d) hasn’t played
7. He normally stops working at 2 p.m. but today, I think, he …his work well before 1 p. m.
a) finishes
b) will have finished
c) will finish
d) finish
8. The child… 6 teeth by the end of this year.
a) will have
b) will have had
c) has
d) is having
9. We… lunch by the time the lesson begins.
a) finish
b) will finish
c) will have finished
d) finished.
XII. Translate the following word combinations:
первый набор зубов, молочные зубы, постоянные зубы, зубной зачаток, влиять на форму рта и лица, скученные зубы, правильно пережевывать пищу, сохранять правильный прикус. верхняя и нижняя челюсть, неправильный прикус, полностью рассосавшийся корень зуба, терять зубы, зубы выпадают, зуб мудрости, кривые зубы, удалять зуб, зубы с затрудненным прорезыванием, резать, разрывать и перетирать пищу
XIII. Read and translate the text at sight.
Text B. First and Second Dentition
All teeth start developing inside the jaws and their arrival in the mouth is known as eruption. Deciduous teeth start developing before birth and erupt after birth. Eruption starts at six months and is completed at two years. Individual variations are possible.
Permanent teeth are the second and final set. There are thirty two of them: sixteen in each jaw, eight on each side. Like deciduous teeth the eight on each side of both jaws have the same names.
After the deciduous teeth loosen they are shed and are soon replaced by eruption of their permanent successors. Deciduous incisors and canines are replaced by permanent teeth of the same name. Deciduous molars, however, are replaced by premolars. Thus the permanent molars erupt without having any deciduous predecessors. Deciduous teeth become loose by resorption of their roots which deprives them of their attachment to the jaws. The unerupted permanent successors lie adjacent to the absorbing deciduous roots and are thus able to erupt into their places when the deciduous teeth are finally shed.
XIV. Fill in the gaps with the necessary prepositions and adverbs.
1. There are 10 teeth … each jaw.
2. Deciduous teeth start developing … birth and erupt … birth.
3. Permanent teeth start developing … birth
4. Eruption times are the subject … considerable individual variation.
5. They are replaced … eruption … their permanent successors.
6. The permanent molars erupt … having any deciduous predecessors.
7. The dissolved roots deprive temporary teeth … their attachment … the jaw.
XV. Translate the following sentences.
1. У ребенка 20 молочных зубов: 10 в каждой челюсти и по 5 с каждой стороны.
2. Зубы начинают прорезываться в 6-8 месяцев, вторые моляры прорезываются последними в два года.
3. Постоянные зубы начинают свое развитие с рождением человека.
4. Время прорезывания зубов различное у разных людей.
5. Молочные резцы и клыки заменяются постоянными зубами с таким же названием.
6. Молочные зубы выпадают из-за рассасывания их корней.
7. Постоянные премоляры не имеют своих молочных предшественников.
8. Когда молочный зуб выпадает, на его место прорезывается его последователь – постоянный.
9. Прорезывание постоянных зубов заканчивается к 14, а зубов мудрости к 18-25 годам.
Lesson 5
Грамматика: конверсия, функции Past Participle, функции глагола to be
