For the group 4te! Read, translate the information. Write down the names of transformer's parts and find their translation.

What is a Transformer

A Transformer is a static electrical machine which transfers AC electrical power from one circuit to the other circuit at the constant frequency, but the voltage level can be altered that means voltage can be increased or decreased according to the requirement.

It works on the principle of Faraday’s Law of Electromagnetic Inductionwhich states that “ the magnitude of voltage is directly proportional to the rate of change of flux.”

Necessity of a Transformer

Usually, electrical power is generated at 11Kv. For economical reasons AC power is transmitted at very high voltages say 220 kV or 440 kV over long distances. Therefore a step-up transformer is applied at the generating stations. Now for safety reasons the voltage is stepped down to different levels by step down transformer at various substations to feed the power to the different locations and thus the utilisation of power is done at 400/230 V.

If (V2 > V1) the voltage is raised on the output side and is known as Step-up transformer

If (V2 < V1) the voltage level is lowered on the output side and is known as Step down transformer

For the group 4TE! Hometask on Monday, the 29th of October!

Positive Sentences

Put the verbs into the correct tense (simple past or present perfect simple).

1. Mary (win)  the lottery last year.
2. We (prepare / already)  dinner.
3. James (find)  your ring in the garden yesterday.
4. He (come / just)  home.
5. They (buy)  their car two years ago.

Negative Sentences

Put the verbs into the correct tense (simple past or present perfect simple).

1. I (see / not)  anyone yet.
2. Phil (go / not)  to the cinema last night.
3. We (be / not)  to the zoo so far.
4. She (arrive / not)  yet.
5. Emily (visit / not)  me last week.

Questions

Put the verbs into the correct tense (simple past or present perfect simple).

1. (you / read)  the book yet?
2. How many letters (they / write)  so far?
3. When (he / tell)  you that?
4. (you / be)  at home last night?
5. How often (you / travel)  abroad till now?

Text

Put the verbs into the correct tense (simple past or present perfect simple).

1. A: (you / taste / ever)  sushi?
2. B: Yes, I (eat)  sushi at least five times so far.
3. A: When (you / eat)  sushi for the first time?
4. B: I (eat)  sushi for the first time on my dad's 50th birthday. He (invite)  the whole family to a Japanese restaurant.
5. A: (you / like)  it?
6. B: Absolutely. In fact, it (be)  so good that we (be)  to that restaurant three times yet. And on my mum's birthday, we(order)  some sushi and (have)  it at home.

Test for the video

For the group 4te!

Lexical material "Money"

For the group 4te!

Money

Money 2

Money 3

For 4tm! Read and translate the text! Make 10 questions to it!

Travelling

Travelling is very popular nowadays. A lot of people travel to different countries if they have such opportunity. Travelling allows you to get interesting experience, learn about people’s life in other countries and continents. I think it is very interesting to discover new things, new places and different ways of life. While on travel, you meet new people, try different meals; see world famous places with your own eyes.

These are many ways of traveling — by train, by plain, by ship, on foot. If you want to visit a far country, you’ll definitely choose a flight. If your aim is to see many countries for a short time, you’ll choose travelling by bus or by car. If you want to be closer to nature, you may choose a trip on foot.

Lots of people nowadays live in big cities. So it’s natural that they want to have a holiday by the sea or in the mountains with nothing to do but relaxing. There is other sort of travellers. They want to visit as many countries as possible. So after exploring Europe and North America they go to exotic countries.

People who travel a lot, are very interesting, they always have a good story to tell. Thanks to them you can learn many things which you didn’t know before. They motivate to see something new, to explore the world, which is so easy to do nowadays. Any kind of travel helps you to understand many things that you would never see or learn at home.

As English people say — A picture is worth a thousand words. And I totally agree with them.

For the group 4TE! Do these tasks for the next lesson, February 8!

Task 1 (Listen to the pronunciation of the words, write down them into vocabularies with translation)

Medicine

Task 2 (write down the following lexical material into your vocabularies and find their translation)

Common Illnesses and Diseases in English

• flu
• cold
• pneumonia
• mumps
• measles
• chickenpox
• scarlet fever
• tonsillitis
• bronchitis
• indigestion
• ulcer
• appendicitis
• hepatitis
• heart attack
• heart disease
• stroke
• arthritis
• asthma
• lung cancer
• diabetes
• amnesia
• nervous breakdown