Complete the email to a penfriend with the words below. all along BMXing by exhausting fitness club gymnastics solar-heated
swimming pool weights room

Hi Daniel,
Thanks for your last email and the photos. I’ve never been 1 or tried to do 2 , but they both sound great fun! My favourite hobby is surfing. It’s 3 at first, but it’s great to be outdoors on a sunny day.
Surfing can be frightening when you first start and don’t know what you’re doing, but it becomes easier. There are surfing clubs 4 the coast. I really enjoy exercise, so at school I’m also in the 5 . We use the 6 once a week at lunchtime and run once or twice a week after school.
Anyway, send me some pictures of your new BMX bike. I like the pictures of your house. You’re very lucky to have a 7 in your garden. We have one in our village. It’s 8 so we can use it all year. It’s quite small though, and it isn’t very relaxing because it’s 9 the main road.

1 V.Dal was sent by his parents to the Naval Cadet School.
2 Dal was taught medicine at Dorpat University.
3 While travelling about Russia,sayings and folk tales were collected by Dal.
4 Some Russian tales were written into poems by Pushkin.
5 Some of the stories were prepared for publication by Afanasyev.
6 Explanatory dictionary of the live great Russian language was published by Dal in the 19th century.
7 The year 2000 was declared the international year of vladimir dal by UNESCO.
8 A lot was done for the development of the Russian language and culture by Dal.

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ALTERNATING CURRENT

Alternating current (AC) is an electric current which periodically reverses

direction, in contrast to direct current (DC) which flows only in one direction.

Alternating current is the form in which electric power is delivered to businesses

and residences, and it is the form of electrical energy that consumers typically use

when they plug kitchen appliances, televisions and electric lamps into a wall

socket. A common source of DC power is a battery cell in a flashlight. The

abbreviations AC and DC are often used to mean simply alternating and direct, as

when they modify current or voltage.

Тhe number of cycles per second is the frequency of an alternating current.

Тhere are two frequencies: the standard for Europe is 50 cycles per second while

the standard for the USA is 60 cycles per second. А standard frequency has а great

advantage since different systems сan bе interconnected.

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