Lesson VII. 1. Respond to the following using the Present Perfect and the Past Simple:

1. Respond to the following using the Present Perfect and the Past Simple:

e.g. ‑ Why don't you buy this dictionary? (yesterday)

‑ I've already bought it. I bought it yesterday.

1. Why don't you send her a telegram? (this morning) 2. Will you make tea, please? (a few minutes ago) 3. Do your homework. (before supper) 4. You should read the book. (in summer) 5. Put the towel into the suitcase. (some minutes ago) 6. Why don't you speak to the boss? (the day before yesterday) 7. What about watching "The War of the Worlds"? (on Tuesday) 8. You should build a garage. (last year) 9. Why don't you phone Peter? (in the afternoon) 10. Tell Dick about the expedition. (last Friday) 11. Why don't you invite the Browns? (yesterday) 12. You must repair the TV set. (yesterday morning) 13. You should book the tickets in advance. (last Saturday) 14. Give her your scanner for a few days. (yesterday)

2. Answer the questions using the prompts:

e.g. ‑ Has he seen Ann? (yesterday)

‑ Yes, he saw her yesterday.

1. Have you sold your car? (last month) 2. Have you spoken to Jack? (on Friday morning) 3. Have you written to Mary? (the day before yesterday) 4. Have you thrown this disk away? (some minutes ago) 5. Have you burnt the documents? (three hours ago) 6. Have you found the folders? (this morning) 7. Has your friend ever forgotten your birthday? (last year) 8. Have you rung Tom? (yesterday afternoon) 9. Has Jack ever been to Italy? (in 1999) 10. Have you heard the news? (yesterday) 11. Has she begun work yet? (at 10 o'clock) 12. Have you eaten the cake? (in the morning).

3. Put the verb into the correct form.

1. You (to hear) about Bob? He (to break) his leg. ‑ Really? How that (to happen)? 2. I just (to return) from Yalta. ‑ You (to go) there alone? ‑ Together with my son. ‑ How long you (to stay) there? — Three weeks. 3. Your hair looks different. You (to have) a haircut? ‑ Yes. ‑ You (to cut) it yourself? — No, Ann (to cut) it for me. 4. Look! Somebody (to spill) milk on the carpet. ‑ Well, it (not / to be) me. ‑ I wonder who it (to be) then. 5. You (to see) the film on television last night? 6. My bicycle isn't here any more. Somebody (to take) it. 7. I (not / to eat) anything yesterday because I (not / to feel) hungry. 8. Why Jim (not / to want) to play tennis last Friday? ‑ He (to be) busy on Friday. 9. Harry: "I (to go) to a new Indian restaurant last night with Mary". Steve: "To that new place in Marchmount Street?" Harry: "Yes. You ever (to be) there?" Steve: "No, but Barbara already (to be) there. She (to love) it. She says she never (to eat) such delicious Indian food. What you (to order)?" Harry: "I (to have) a prawn curry and Mary (to try) a chicken. They (to be) both fantastic. 10. Mike: "I never (to be) to Cambridge." Paul: "Oh, I (to go) there last summer. I (to do) a language course there." Mike: "You ever (to be) to Oxford?" Paul: "No, but a friend of mine (to stay) there for a month two years ago. He (to enjoy) it very much."

4. Answer the questions.

1. How small do you think computers can usually become?

2. To what extent does the size of a computer influence what it can be used for?

3. Name some varieties of computers you know.

4. How do you understand the term ‘biological computer’?

5. Study the key words.

digital	weigh
generation	diagonally
portable	notebook
power	subnotebook
weight	clipboard
term	pentop
mean	hand-written
desktop	handheld computer
plug	palmtop
laptop	pocket
rechargeable	wireless

6. Read the text and translate it.

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