в каких случаях используется present perfect?

1. I get up … seven o’clock or … a quarter past seven. 2. … Sunday I usually get up … nine o’clock or half past nine. 3. But last Sunday I slept very long and got up only … noon. 4. He was an excellent pupil, and the teacher never complained … him. 5. The school year begins … the first of September. 6. I like to go to the park … autumn.

что мне нужно изменить или что поменять,чтобы знать его лушче) Дом.работа по англ, срочноооо))

NVENTORS AND INVENTIONS (A DIALOGUE)Pete: For thousands of years people led a primitive way of life and then incomparatively short period of time a gigantic leap has been made in the scientific andtechnical progress.Ann: I also thought of how much it had been done by the people to reach thepresent state of the development of the human society.Pete: Yes, Ann. And it is necessary to say that great contribution of thedevelopment of world science had also been made by the Russian scientists andinventors before the Revolution.Ann: Right you are, Pete. She does not know the names of the great Russianscientists and inventors such as Lomonosov, Mendeleyev, Sechenov, Pavlov,Michurin and many others?Pete: I think that it's hardly possible to name a branch of science in thedevelopment of which the Russian scientists have not played the greatest role. Whatdo you think of it, Ann?Ann: I am of your opinion. Lomonosov was an outstanding innovator both inthe humanities and in exact sciences. He founded the first Russian University.Mendeleyev’s greatest discovery was his Periodic 'System of Elements. Popovinvented radio. Sechenov and Pavlov «ere the world's greatest physiologists.Tsiolkovsky is the father of rocket flying. He had decided the principles of jet propelled flying machines for interplanetary communication.Pete: Michurin was the greatest Russian scientist and selectionist. His maindoctrine of the development of biology has been expressed in his conclusion: “Wecannot wait for favours from nature”CRAVITATIONAL WAVESIn 1916 Albert Einstein published his theory of general relativity. In one of its major aspectsthis is a theory of the nature and operation of gravitational forces with which Einstein intended toreplace the classical theory devised by Isaac Newton in the 17th century.Einstein’s theory makes a number of predictions that are radically different from those ofNewton. One of the most striking of these is that gravitational forces should be propagated in wavesin a manner similar to the way electric and magnetic forces are. These gravitational waves shouldconsist of cyclically fluctuating gravitational forces; they should carry energy from place to placeand they should cause minute fluctuations of the surfaces of objects they encounter.Any accelerated body could be a source of gravitational waves, but in practice physicistslook to large astronomical bodies such as oblate stars or binary stars.The prediction was that gravitational waves would be extremely weak: for a cylinder ametre long the amount of surface disturbance would be a fraction of the diameter of an atomicnucleus.For 40 years no one seriously looked for gravitational waves, but in the late 1950’s Dr.Weber began to develop equipment he thought would do the job. As receivers he used aluminiumcylinders of about a ton’s weight, and developed piezoelectric sensors that can record fluctuationsin the surface of these cylinders amounting to fractions of a nuclear diameter.In 1969 Dr.Weber announced that his equipment had recorded gravitational waves. Sincethen he has been subjected to criticism, based mainly on his statistical analysis of the data. In spiteof the waves, experiments are now in progress both in this country and the United States.Most of these try to make the detectors more sensitive or to design new kinds of detectorsthat will record frequency ranges other then the one – 1.660 cycles per second (Hertz– thatDr.Weber has pioneered)

1) когда ты закончил работу? только что я закончил её
2)я очень голодный, я ничего не ел сегодня.
3)это самое красивое место которое я когла либо посещал
4)я не видел Ника в последнее время. С ним что нибудь случилось? да, он попал в аварию три недели назад. с тех пор он находится в болнице.
5) я видел королеву Елизавету вторую, но к сожалению я не( не записала продолжение)
6) Дэн проработал в Кодаке 10 месяцев, а потом начал работать в Сони.
7)Керол не писала мне с августа.
8)Вы видели Тома в последние несколько дней? я только сейчас говорил с ним по телефону
9) Это первый раз когда я езжу верхом
10) они не виделись с тех пор как закончили школу
11) он научился плавать в детстве. Они тода жили на юге
12. я узнал ваш телефон в справочном бюро и звонил вам несколько раз но никто не отвечал


нужен перевод в present perfect и past simple

1. John (write) his name. 2. I (draw) a picture. 3. Tom (blow out ) the light. 4. The cat (drink) its milk. 5. The tree (fall) across the road. 6. John (give) his bicycle to his brother. 7. You (make) a mistake. 8. We (eat) our dinner. 9. The train just (go). 10. I just (tell) the answer. 11. George never (be) in Australia. 12. John and Richard just (go away). 13. The baker (sell) all his cakes. 14. I (read) this book.

2. В следующих предложениях измените время глагола на Present Perfect. Переведите предложения на русский язык.

1. The pupils are writing the dictation. 2. My friend is helping me to solve a difficult problem. 3. I am learning a poem 4. She is telling them an interesting story. 5. Kate is sweeping the floor. 6. The waiter is putting a bottle of lemonade in front of him. 7. I am eating my breakfast. 8. We are drinking water. 9. He is bringing them some meat and vegetables. 10 You are putting the dishes on the table.

3.Раскройте скобки, переведите. Помните, что в некоторых случаях употребляется Past SIMPLE!
1. When he (to come) home, his mother already (to cook) dinner.
2. When we (to come) to my friend’s house, he just (to leave).
3. When her husband (to enter) her office, she already (to finish) her work for that day.
4. Jennifer (to send) him an email after he (to call).
5. Andy (to ask) his friend before he (to propose) him his help.
6. We (to eat) a cake which I (to bring) an hour before.
7. My sister (to take) my dress which I (to buy) in Morocco.
8. I (to work) on the computer yesterday which I (to buy) a week ago.
9. I (to know) that my friend (not yet to complete) the test in the university.
10. Nick and his wife (to come) home from the theatre at five o'clock.
11. Nick and his wife (to come) home from the theatre by five o'clock.
12. She (to finish) my homework at seven o'clock.
13. She (to finish) my homework by seven o'clock.
14. They (to sell) their house before they (to buy) the new one.
15. He told me that he (to buy) a new car.
16. Yesterday I (to wake up), (to open) my eyes and (to remember) what I (to do) the day before.
17. She said that she (to have) a great vacation trip.
18. You (to complete) the test by Friday?
19. I (not to have) a lunch by the afternoon, so I was very hungry.
20. I (to fix) my car before my daughter (to return) back from school.


4.Поставь глагол в нужной форме (Past Perfect или Past Simple) в зависимости от смысла.

1. The house was very quiet when I got home. Everybody _____________(go) to bed.

2. I felt very tired when I got home, so I ______(go) straight to bed.

3. Sorry I am late. The car ______(break) down on my way here.

4. There was a car by the side of the road. It ________ (break) down and the driver was trying to repair it. So we _______ (stop) to help him.

5. Поставье глаголы в скобках в форму present, past или future perfect:

1. I hope you (not forget) all this by tomorrow. 2. I think she (cook) dinner by the time Mother (come) home. 3. He (be) a pensioner for ten years by next spring. 4. I hope they (tell) her the news by the time we (come). 5. Ask him when he (finish) packing. 6. What … you (do) when I (call) on you at 5
tomorrow? 7. He (search) every corner of your room before he (leave). 8. The plane (approach) Moscow at this time tomorrow. 9. By the time you (get) home we (prepare) everything for the party. 10. They (come) to see us next Sunday. 11. The doctor (examine) his last patient at this time tomorrow.

A) Past Simple B) Present Perfect

I (do)
He (work)
She (sleep)
We (go)
They (drink)
Nick (write)
You (have)
We (be)


Exercise 3. Раскройте скобки. Употребляя глаголы в Present Perfect или Past Simple:



I already (to do) my homework. Now I can go for a walk.
I (to do) my homework yesterday.
He just (to come) home.
He (to come) home a minute ago.
We already (to solve) the problem.
I (to read) this book last year.
I’m sorry. I (not to do) my homework.
He is not at school today. He (to fall) ill. – When he (to fall) ill? – He (to fall) ill yesterday.
The rain (to stop) but a cold wind is still blowing.
They (not yet to come) from the south.