Task1.Read the text below and mark the sentences True or False. Прочитайте текст ниже и отметьте предложения, Правда или Ложь

Travelling: means of transport

I always travel in summer. Do you? I like to travel and forget about school. As I know, people started traveling many years ago. The first travelers were explorers. They traveled because they wanted to find adventures and to become wealthy and famous. Their trips were dangerous, but they wanted to discover the new lands. Today traveling isn`t so dangerous and it is more convenient. The tourist companies take care of tickets and make all the necessary reservations. While traveling around the world you can choose different means of transport: trains, ships, planes or bicycles. I think that the fastest and the most convenient way of traveling is by air. However, it is the most expensive. Trains are slower than planes, but this way of traveling has its advantages. Modern trains are very comfortable besides, you can see the interesting places of the country you are traveling through. The main advantages of planes and trains are safety, comfort and speed. That is the reason why most people prefer them to other means of transport. Nowadays traveling by sea has become very popular. You can visit other countries or various places of interest within the country when you travel by ship or boat.

My favorite way of travelling is travelling by car. I believe it is very convenient. I don’t need to make any reservations or carry heavy suitcases. I can stop whenever I wish and spend as much time as I wish at any place.

Tom, 13 Britain

0. Tom prefers not to remember about school when he travels. True

1. Today travelling is more convenient than it was many years ago.

2. While travelling around the world people can choose only trains.

3. Travelling by planes people can see many wonderful sights.

4. Most people prefer travelling by cars because of their speed and comfort.

5. Tom has a relaxing time when he travels by car.

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Task 2. Answer the questions. ответить на вопросы.

6. Why did the first travelers want to travel?

7. What means of transport can people choose to travel around the world?

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1. to

2. to

3. -

4. to

5. -

6. to

7. -

8. to

9. -

10. to

11. -

12. -

Ex.2

1. Must (Can больше как физическое разрешение, то есть родители держали его за руки и за ноги, чтоб раньше 11 вечера не ложился в постель - бред);

2. Should (Следует прочитать, потому что интересная, НЕ разрешение, а совет);

3. Must (Позвонила мама, я должен идти домой. она не позвонила, чтобы разрешить ему войти домой, а приказала вернуться);

4. Can (Не разрешение, а так как учил его в школе);

5. May (Разрешение);

6. Should (Предположение с большой долей вероятности. Она не просто умеет готовить, а, скорее всего, приготовит, ведь гости придут);

7. Have to (Necessity imposed by circumstances);

8. Used to (Он мог и он играл - это факт, сейчас не может из-за сломанной руки; able больше как возможность и того, что он играл, но не факт что играл на самом деле:) );

9.  Should (Should так как доктор просто порекомендовал, а не прописал);

10. Can (Can потому что может, а не разрешено);

11. May (Разрешение: можешь прочитать, только верни (обратный смысл 2 предложения);

12. Have to (to после must не ставится, как и didn't перед ним, didn't have to, можно считать, must в

Ex.3

1. You must not run. You should walk.

2. He is late. He must have had some problems.

3. - Can you open the door?

- No, it's locked.

4. I overslept and had to take a taxi. (Я был вынужден взять такси, у меня не было выбора)

5. You may eat the cake. (Разрешение)

6. He couldn't write it all by himself. (or He can't have written it..)

7. You don't have to speak English.

8. He will be able to visit the meeting tomorrow.

Ex.4

1) Chris is playing volleyball now

2) I should close the window

3) Doctor said she can not run anymore

4) They do not need to watch that film

5) Frank had to wait for a train

6) Rosa and Lily like to skate in winter

1. The ohmmeter is used to measure the value of resistance while it is connected in paralltl to the resistor.

2. The ammeter is connected in series while the current is being measured.

3. While the value of current in the circuit is measured, the ammeter should be connected in series.

1. Suppose the ammeter scale reads 1.9 amp, the voltmeter scale reads 2.4 V; how much is the value of resistance in the measured circuit?

R = U / I = 2.4 / 1.9 = 1.26 Ohm

2. Suppose the ohmmeter scale reads 75 ohms, the voltmeter scale reads 220 V; how much is the value of current in the measured circuit?

I = U / R = 220 / 75 = 2.9 A

3. Suppose that you have a series circuit consisting of three resistors and a voltage source. R1 = 0.18 ohm, R2= 1.15 ohms, R3 = 2 ohms, I=10 amp. Find the voltage drop across each resistor; find the value of voltage in the circuit.

U1 = R1 * I = 0.18 * 10 = 1.8 V  

U2 = R2 * I = 1.15 * 10 = 11.5 V

U3 = R3 * I = 2 * 10 = 20 V

Suppose R1 gets open. What does it result in? I = 0

4. Two resistors are connected in series. R1 = 7,000, R2= 2,200, I = 110 amp. Find the voltage drop across each resistor.

U1 = R1 * I = 7,000 * 110 = 770,000 V  

U2 = R2 * I = 2,200 * 110 = 242,000 V

Suppose no current passes through the circuit, what does it result from?

It results from the broken circuit.