Вариант 7

1. В каких из следующих слов звук, передаваемый буквосочетанием "еа", отличается от остальных?

1. head, b) dead, с) thread, d) breath, e) beat, f) break, g) instead.

2. Отметьте существительные во множественном числе:

a) feet, b) children, с) tooth, d) data, e) news, f) advice, g) money, h) phenomena, i) postmen, j) woman, k) time, e) watch.

3. Выберите правильное местоимение:

1) Make... a cup of coffee.

a) your

b) yourself

2) Take... cup of coffee.

a) your

b) yourself

3) Look behind...!

a) you

b) yourself

4) You don't have to worry. He can take care of__

a) him

b) himself

4. Выберите правильный предлог:

1) She doesn't like noisy parties. She prefers to stay... herself.

a) by

b) for

2) Let's hear Harris singing a comic song and then you can judge ... yourselves.

a) by

b) for

3) I don't believe it unless I see... myself.

a) by

b) for

5. Выберите правильный вариант:

1) Tom is their ... son.

a) older

b) elder

2) Kiev is ... than Kursk.

a) farther

b) further

3) Her baby is ... than mine.

a) less

b) smaller

4) The situation changed from bad to....

a) well

b) worse

5) Her husband is twice as... as she is.

a) old

b) older

6) The more she knew this man the... she liked him.

a) little

2. less

6. Выберите правильную форму глагола:

1) We ... five days a week.

a) work

b) works

c) are working

2) She ... in the suburbs of Moscow.

a) live

b) lives

c) is living

7. Определите, в каком из предложений глагол "to be" является модальным:

a) She is a secretary.

b) She is in the office now.

c) She is working.

d) She is to start work at 9 tomorrow.

8. Выберите правильный вариант:

1) ... is never late to study.

a) it

b) there

2)... is no place like home.

a) it

b) there

3) ... is pleasant to walk in the woods.

a) it

b) there

4) Once upon a time... lived a beautiful princess.

a) it

b) there

5)... is nothing but your imagination.

a) it

b) there

9. Соотнесите глагол и существительное:

sign make become get post diagnose

a) model b) illness c) job d) appointment e) contract f) letter

10. Выберите правильный модальный глагол:

1) The weather…change tomorrow.

a) may

b) must

c) should

2) The water is cold, you…swim.

a) can

b) can’t

c) must

3) I…to cover the whole distance on foot.

a) can

b) have

c) must

11. Прочитайте и письменно переведите текст:

Plastics

Plastics are non-metallic, synthetic, carbon-based materials. They can be moulded, shaped, or extruded into flexible sheets, films, or fibres. Plastics are synthetic polymers. Polymers consist of long-chain molecules made of large numbers of identical small molecules (monomers). The chemical nature of a plastic is defined by the monomer (repeating unit) that makes up the chain of the polymer. Polyethene is a polyolefin; its monomer unit is ethene (formerly called ethylene). Other categories are acrylics (such as polymethylmethacrylate), styrenes (such as polystyrene), vinys (such as polyvinyl chloride (PVC)), polyesters, polyurethanes, polyamides (such as nylons), polyethers, acetals, phenolics, cellulosics, and amino resins. The molecules can be either natural — like cellulose, wax, and natural rubber — or synthetic — in polyethene and nylon. In co-polymers, more than one monomer is used.

The giant molecules of which polymers consist may be linear, branched, or cross-linked, depending on the plastic. Linear and branched molecules are thermoplastic (soften when heated), whereas cross-linked molecules are thermosetting (harden when heated).

Most plastics are synthesized from organic chemicals or from natural gas or coal. Plastics are light-weight compared to metals and are good electrical insulators. The best insulators now are epoxy resins and teflon. Teflon or polytetrafluoroethene (PTFE) was first made in 1938 and was produced commercially in 1950.

Ответьте на вопросы к тексту:

1. What is the definition of plastics?

2. What is the basic chemical element in plastics formula?

3. What do polymers consist of?

4. What are long-chain molecules made of?

5. What plastics are the best electrical insulators?

Составьте словарь профессиональных терминов (15 слов и выражений)