Как правило, в инструментах электричество используется для вырабатывания механической энергии, однако есть и такие инструменты, которые вырабатывают тепловую энергию: паяльник, калорифер.

IV. Fill in the prepositions where it is necessary.

This writer is known all... the world. Many people are fond... his books. I read one of his novels... a month ago. He tells his stories... such a way that you remember them... a long time. Although his characters are imaginary it always seems that they live... real life.... the beginning of the year they made a trading expedition... Africa. Crusoe left... saying good-bye to anyone.... his way... London he had his first experience... a shipwreck. The ship ran... a rock and broke... pieces. The sailors were swallowed…the sea.

V. Replace the infinitives given in brackets by the Past Indefinite or the Past Continuous

John (to write) the label when the bell (to ring) and a short man (to enter). A dog (to follow) him.

There (to be) silence while the man (to look) John up and down.

I (to see) the light in your windows as I (to pass).

During the dinner while he (to eat) his piece of cold meat, his aunt (to help) herself to wine.

5. While he (to read) a newspaper she (to sit) studying him, and by the look in her eyes he (to see) that she (to reflect) on something concerning him.

Jim half (to dream) still when he (to come) to the place of his destination.

VI. Change the verbs in bracket by Gerunds. Put prepositions where necessary.

I have no intention... (to stay) here any longer. She insisted... (to help) me. Are you fond of

 ... (to play). They have had very much experience... (to cast). There was no possibility... (to come) in time. There is little chance... (to see) him today. We have the pleasure... (to invite) them to the evening party. We are proud... (to fulfill) that task ahead of time.

Контрольная работа № 11

I.   Translate the text.

What is electricity?

  Have you ever gotten a shock when you touched a doorknob, or seen sparks fly when you combed your hair? That's electricity.

   Electricity is a type of energy that gives things the power to work. This energy comes from electrons. Scientists have learned how to use electrons to produce electricity.

Meghometer

  The most commonly used apparatus for insulation resistance is the meghommeter or "megger". The device is easy to handle. It consists of a hand-driven generator in a permanent magnet frame which causes a moving coil to register the insulation resistance in ohms or megohms, the amount of which is indicated by a pointer.

The "megger" is also used for continuity, ground, and short-circuit testing in general electrical power work.

Electricity- Sound and Light

Flip a switch and a light goes on. It's simple, right? Wrong! Every time you flip a light switch, you make billions of little electrons go to work for you. Uncountable hours of work have gone into providing you with the electricity you need to turn that light on. Without electricity you wouldn't have telephones, television, video games, and many other things you use every day.

 II. Translate the text.

Техника безопасности:

Чтобы обезопасить себя от воздействия электричества, принято работать в резиновых перчатках или стоять на резиновом коврике. Электрики (как, впрочем, и не электрики) берутся починить розетку или другой электрический прибор, не отключая ток. В таком случае они обязаны выполнять только одно правило: не замыкать собой электрическую цепь. Поэтому они не должны касаться каких-нибудь проводников электричества, а также обоих контактов электрического провода одновременно.

IV. Fill in the blanks with the articles a, an, the and prepositions, where necessary:

We live in... nice flat... new house near... park.... flat is on... second floor. There are... two rooms in it. We have also... kitchen and... bathroom... kitchen is... big enough. As... rule, my mother cooks for us. We spend... lot of... time together in... kitchen. There is... TV set in

... corner of... kitchen, and we often watch... TV there The young scientist shook hands... his friends who had come... the airport to see him...