Контрольная № 3 по английскому, вариант 2

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I. Прочитайте и переведите текст (устно).
SMART MATERIALS

II. Выберите правильный вариант ответа на вопросы по тексту.
1. What time could smart materials be referred to?
a) the invention of the 19th century
b) the invention of our time
c) the old Persian technology
2. What characteristics do the smart materials exhibit?
a) dissipating after heating
b) changing the melting point
c) retu
ing to their original form
3. When were the first nickel-titanium alloys developed?
a) 1930s
b) 1962-1963
c) the 21st century

III. Закончите предложение по содержанию прочитанного текста.
4. Smart materials …
a) are a new development in engineering.
b) are very old.
c) are manufactured everywhere.

5. Materials that react to changes in environment are …
а) called as alloys.
b) only plastics.
c) called as smart materials.
6. There …
a) is a need in smart materials in medicine.
b) are three types of smart materials.
c) are experiments with aluminum-titanium alloys.
7. One of the laboratory directors …
a) broke the sample.
b) decided to heat the sample.
c) exposed the sample to light.
8. After heating, the sample …
a) retu
ed to its original shape.
b) did not change the form.
c) evaporated.

IV. Подберите эквивалент к данному русскому слову.
9. сплав
a) alloy b) polymer c) metal
10. смесь
a) powder b) mixture c) gas
11. узел
a) cable b) rope c) knot
12. шов
a) thread b) line c) stitch
13. жидкий
a) solid b) liquid c) transient

V. Выберите соответствующее определение данным терминам.

a) by accident b) original c) strain d) react
e) flexible f) shape-memory effect g) lenses h) to subject to heat
14. tension
15. initial
16. to warm to a certain temperature
17. by chance
18. magnifying glasses
19. the effect of retu
ing to the original shape under certain conditi