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VII. Insert prepositions where necessary.

1. We are writing a test tomorrow. I must prepare … it.

2. The students are measuring electrical units … a multimeter now.

3. Where were you at 7 yesterday evening? I was looking … you.

4. The car is moving … the speed of 60 kph.

5. We are carrying … some experiments with different electrical devices at the moment.

6. I will be waiting … you … 9 a.m. in my office.

VIII. Correct mistakes.

1. We will be study the properties of copper from 5 till 6 tomorrow.

2. I will preparing for my test the whole day yesterday.

3. The students not were measuring the value of the current at the lesson.

4. I was drawing a graph at the class tomorrow.

5. Will be you carrying out this experiment next time?

6. My friends was finishing the laboratory work at the previous class.

7. The teacher will be not telling the students about electricity at the next lesson.

IX. Translate the sentences into English using your active vocabulary.

1. Вчора ми вивчали електронні прилади в лабораторії з 2-ї до 4-ї години дня.

2. – Що ви робили? – Ми перевіряли прилади, потім вимірювали опір різних провідників: мідних, алюмінієвих, залізних.

3.– Що він робив? – Він працював з мультиметром. Він використовував затискачі "крокодил" і з’єднував проводи в ланцюги.

4. – Ти будеш проводити експеримент в лабораторії через дві години? – Так, я буду перевіряти нове обладнання.

5. – Коли ти збираєшся продемонструвати результати тесту? – Я думаю, через два дні.

Reading and Speaking

I. Nataly and Alice were not at home from 4 till 6 o'clock yesterday. They were at the University. Read this passage through to find the answers to these questions.

1. What were the girls doing in the lab?

2. Were they using a multimeter or a tachometer?

3. What is a multimeter used for?

4. What are the main parts of a multimeter?

5. What are the students going to do next time?

Y esterday from 4 till 6 o'clock Nataly and Alice were working in the laboratory. They were studying different electrical devices and instruments. One of them, a multimeter, was on their demon­stration table all the time.

T he multimeter is used for measuring three types of electri­cal units, namely: voltage, resist­ance and current. This device (see fig. 1) has several scales, a needle, a function selector switch, two leads, a crocodile clip and a probe.

Look at picture 2 – the girls were measuring the value of the resistance at that moment. Alice was using two small crocodile clips to make a good connection between the meter and the resistor. While she was connecting the two leads to the resistor, Nataly was turning the switch to the resist­ance range.

The needle was indicating the value of the resistance on the ohnis scale. Next time they are going to measure the current. They will be using the same multimeter.

II. Complete the dialogue. Use the wordlist below.

– Who … working in the lab yesterday at 11a.m.?

– Alice and Nataly … working in the lab.

– What were they … there?

– They were … different electrical… .

– What device … they working …?

– They were … with a … .

– What… it used …?

– It is … for measuring three types of electrical…, namely: …, resist­ance and … .

– How were the students measuring the … of the …?

– Alice was connecting two … to the resistor … Nataly was … the switch to the resistance … .

– What are the students … to do next time?

– Next time they … going … measure the … . They'll … using the same … .

were

value

selector

be

are

were

devices

current

is

turning

for

doing

resistance

studying

voltage

while

units

multimeter

current

with

going

used

meter

working

was

to

leads

range

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