Two world wars helped to develop the chemical industry. The 20th century gave us the automobile, the airplane, the helicopter, the cinema, the computer and the nuclear reactor.
People believe that inventions occur as the need arises. From this point of view, someone else might have invented the telephone. As it happened, it was Alexander Graham Bell.
He was born in Scotland and spent his youth in England. His parents moved in scientific circles, where experiments were being carried out on the human voice. That was the reason why Bell became interested in the subject. Later he began experimenting with a multiple telegraph that could send more than one message at a time.
After graduating from the University of London, Bell was a teacher of the deaf. Later he moved to America and invented a little machine, that he could use in teaching the deaf. This little machine called the phonautograph, gave him a key to the invention of the telephone. Bell took on an assistant, Thomas A. Watson, who knew about electricity a lot more than he did. They were working together, when Bell's idea for the telephone came to him.
The first model of his invention was shown in 1876
1.1) We cleaned the windows six months ago.
1.2)The film started five minutes ago.
1.3)I saw my cousin last Monday.
2.1) He taught history at school. Did he teach history at school? He didn't teach history at school.
2.2) They left home at 8 o'clock. Did they leave home at 8 o'clock. They didn't leave home at 8 o'clock.
2.3) He stayed in very good hotels. Did he stay in very good hotels? He didn't stay in very good hotels.
2.4) You drank a lot of tea. Did you drink a lot of tea? You didn't drink a lot of tea.
2.5) I looked very tired. Did I look very tired? I didn't look very tired.
2.6) We stopped in London. Did we stop in London? We didn't stop in London.
2.7)The shop closed at 7 o'clock. Did the shop close at 7 o'clock? The shop didn't close at 7 o'clock.
2.8)Pam bought a lot of clothes. Did Pam buy a lot of clothes? Pam didn't buy a lot of clothes.
2.9)The birds flew away to other countries. Did the birds fly away to other countries? The birds didn't fly away to other countries.
3.1)скинь картинки
Відповідь:
1. 1) I like the same movies as my friends.
2) Me and my friends have the same music taste.
3) I have the same style as my friends.
2. b
3. 1) How much milk do we have in the fridge?
2) How many apples do you want?
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