Стр.46 Unit 4 ГДЗ Комарова Ларионова 11 класс

Grammar 1. Check past perfect simple and continuous

See pages 168 and 169 for information about past perfect simple and continuous.

Look at these extracts. Which event happened first, A or B?

1. Buckland (A) ______ when he (B) ______ across some teeth.
2. It (A) ______ with what the church (B) ______.
3. After people (A) ______ into contact with cowpox, they (B) ______ smallpox.

A Choose the correct option.

1. The Internet ______ around for very long before it became popular.
2. I realized my mistake only after I ______ the message.
3. I sent the email a week ago and I still ______ a reply.
4. Darwin began writing a book when he ______ his theory.
5. Kate ______ to buy a new computer for months.
6. They ______ the computer game for months before they presented it to the public.

B Complete the sentences with words from the box.

after, already, before, for, just, since, soon, when

1. By the time I asked, she had ______ her mobile away.
2. Rachel had ______ home when she realized she had left her laptop on the bus.
3. I had been sleeping ______ an hour when she called.
4. I had finished all my work ______ I went out.
5. I hadn’t seen her ______ we were in primary school.
6. James and I watched TV ______ we had finished dinner.
7. Sally had been working on her computer ______ ten minutes when the screen went blank.
8. As ______ as he had got home, Colin checked his email.

C Work in pairs. Imagine you saw your partner doing something strange yesterday. Ask and answer questions to find out more. Use the ideas in the box to help you.

covered in paint; crying; laughing; limping; running in a bathing suit; sleeping in the park

D Read and complete the text using the correct form of the words in capitals.

How wrong can you be?

Today more than one billion people have a computer in their home. But in 1977, Ken Olsen, an engineer and co-founder of the Digital Equipment Corporation, 1) ______ that there would be no market for the home computer. Engineers at the company 2) ______ on a project to make computers smaller, faster and cheaper when he famously said, “There is no reason for any individual to have a computer at his home.” In fact, Ken Olsen 3) ______ to the dangerous home computer of science fiction films—a quite different thing.

In the 1930s, before TV became popular, film producer Darryl Zanuck 4) ______ that television would never succeed. To a certain extent Zanuck 5) ______ right, as television 6) ______ until the 1950s. But by the 1970s and 1980s, it 7) ______ a huge part of our lives. In most households today you can find two or even three TV sets!