Реши: 1 Complete the sentences with the present perfect, past perfect or future perfect form of the verbs in brackets. 1Electricity is a force of nature and (be) around us since the creation of universe. (write). 2 At last he showed me the letter he 3 Next year I (know) John for 20 years. (begin) 4 By the time we got to the cinema, the film already 2 points 2 Put the words in the correct order to make statements (1-2) or questions (3-4). 1 passed/because/hard/exams/They/they/had/their/studied/. 2 nights/have/properly/I/for/three/not/slept/. 3 project/by/have/Will/end/this/finished/you/the/of/the/month? 4 you/Have/camera/yet/new/photos/with/any/taken/your? 2 points 3 Complete the sentences with the correct form of the words below. criterion phenomenon formula crisis of electricity and magnetism. 1 William Gilbert studied both the Nature provides an important model to find solutions to the ecological 2 3 What are used for assessing a student's ability? 4 A is an equation that shows how one amount depends on one or more other amounts. 2 points 4 Match definitions 1-4 with the terms a)-d) The capacity of an electric field to do work on an electric charge a) battery typically measured in volts 2 An influence produced by an electric charge on other charges in b) electric potential its vicinity. d) electric field 3 A type of electric current that changes direction periodically during the cycle e) alternating current 4 A chemical device designed to create the force needed to move electrons 2 points 5 Think of one of the famous scientists who made discoveries or inventions of great value to the field electricity and write four sentences about that scientist. 2

Конечно, давай разберем каждое задание.

1. Complete the sentences with the present perfect, past perfect or future perfect form of the verbs.

1. Electricity is a force of nature and (be) around us since the creation of universe.

   Электричество — это сила природы, и оно has been around us since the creation of the universe.

2. At last he showed me the letter he (write).

   Наконец он показал мне письмо, которое он had written.

3. Next year I (know) John for 20 years.

   В следующем году я will have known Джона 20 лет.

4. By the time we got to the cinema, the film already (begin).

   К тому времени, как мы добрались до кинотеатра, фильм уже had begun.

2. Put the words in the correct order.

1. They passed their exams because they had studied hard.

2. I have not slept properly for three nights.

3. Will you have finished the project by the end of the month?

4. Have you taken any photos with your new camera yet?

3. Complete the sentences with the correct form of the words below.

1. William Gilbert studied both the phenomena of electricity and magnetism.

2. Nature provides an important model to find solutions to the ecological crises.

3. What criteria are used for assessing a student's ability?

4. A formula is an equation that shows how one amount depends on one or more other amounts.

4. Match definitions with the terms.

1. The capacity of an electric field to do work on an electric charge (typically measured in volts) — b) electric potential

2. An influence produced by an electric charge on other charges in its vicinity — d) electric field

3. A type of electric current that changes direction periodically during the cycle — e) alternating current

4. A chemical device designed to create the force needed to move electrons — a) battery

5. Think of one of the famous scientists.

Ты можешь выбрать, например, Майкла Фарадея. Вот несколько предложений:

1. Майкл Фарадей — один из основателей электромагнетизма.
2. Он открыл явление электромагнитной индукции.
3. Его работа стала основой для создания современных электродвигателей.
4. Фарадей также ввел понятие электрического поля.

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