Откройте скобки, используя Настоящее совершенное, Прошедшее простое время или Прошедшее совершенное время. Затем переведите на русский язык.
I. Open the brackets using the Present Perfect, the Past Simple Tense or the Past Perfect Tense. Then translate into Russian.
1. The scientist (to modify) his explanation of this experiment only some days ago, ... he?
2. It is early July. Peter says that he (to come back) from the conference by the end of the June.
3. The author of the article writes that an English physicist W. Crookes (to identify) plasma in 1879.
4. They (not to finish) carrying out the experiment by last month, ... they?
5. Why Mary and Peter (not to take part) in the student conference on laser physics the day before yesterday?
II. Put questions to the words in bold.
1. Yesterday the students carried out a very important experiment.
2. They had come back from the business trip by last Friday.
I. Open the brackets using the Present Perfect, the Past Simple Tense or the Past Perfect Tense. Then translate into Russian.
1. The scientist (to modify) his explanation of this experiment only some days ago, ... he?
2. It is early July. Peter says that he (to come back) from the conference by the end of the June.
3. The author of the article writes that an English physicist W. Crookes (to identify) plasma in 1879.
4. They (not to finish) carrying out the experiment by last month, ... they?
5. Why Mary and Peter (not to take part) in the student conference on laser physics the day before yesterday?
II. Put questions to the words in bold.
1. Yesterday the students carried out a very important experiment.
2. They had come back from the business trip by last Friday.
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Answers & Comments
Ответ:
I.
1. The scientist modified his explanation of this experiment only some days ago, didn't he he?
Ученый изменил свое объяснение этого эксперимента всего несколько дней назад, не так ли?
2. It is early July. Peter says that he had come back from the conference by the end of the June.
Сейчас начало июля. Питер говорит, что вернулся с конференции к концу июня.
3. The author of the article writes that an English physicist W. Crookes identified plasma in 1879.
Автор статьи пишет, что английский физик У. Крукс идентифицировал плазму в 1879 году.
4. They hadn't finished carrying out the experiment by last month, had they?
Они не закончили эксперимент к прошлому месяцу, не так ли?
5. Why didn't Mary and Peter take part in the student conference on laser physics the day before yesterday?
Почему Мэри и Питер не приняли участие в студенческой конференции по лазерной физике позавчера?
II. Слова в условии не выделены, поэтому пишу по несколько вопросов для примера.
1. Yesterday the students carried out a very important experiment.
When did the students carry out a very important experiment?
What did the students carry out yesterday?
2. They had come back from the business trip by last Friday.
When had they come back from the business trip?
Where had they come back from by last Friday?
Объяснение задания I:
1 Фраза со словом ago - индикатор Past Simple
2 Слова by the end of the June указывают момент в прошлом, до которого произошло действие, поэтому используем Past Perfect.
3 В предложении есть точное указание на время совершения действия - 1879 год, поэтому используем Past Simple
4 by last month - индикатор Past Perfect
5 the day before yesterday - индикатор Past Simple