ON MARCH 3,1847,ALEXANDER GRAHAM BELL was born in edin burgh. He was a scotsman although he later emigrated, first to Canada and then to the USA in the 1870s. In America, he worked with deaf-mutes at Boston University. Soon, Bell started experimenting with ways of transmitting speech over a long distance. This led to the invention the telephone. Bell and his assistant, Thomas Watson, conducted many experiments and finally came up with a device which they first introduced in 1876. Bell said on the telephone: 'Mr. Watson, come here. I want you.' Thí was the first telephone message. Traveling all over America, Bell demonstrated hí invention to the public at countless exhibitions, and by 1877 the first telephone was in commercial use.

Tóm tắt đoạn văn này giúp em với ạ chiều nay em học rồi

Rearrange the following sentences in the correct order to make complete sentences.

1 his invention / exhibitions / he demonstrated / at a lot of

=> he

2 travelling all over america / to the public / Bell demonstrated / at countless exhibitions / his invention

=> travelling all over america

3 without / do everything / modern equipment / my mom had to / the help of

=> mom had to do

4 and the fire / he lit / the straw / burned the tiger

=> he

5 she dropped / as little pea / one of her shoes / ran to the festivals / and lost it

=> as little pea

I. One of the inventions made in the world of science and technology is the telephone. This instrument has become an important part in our daily life The word "telephone " comes from two Greek words" tele " and " phone". These words mean "far" and "sound". The telephone uses electricity to carry sound over distance. So you see, the two Greek words tell us exactly what the instrument does. Since its invention by Alexander Graham Bell in 1876, the design of the telephone set has changed greatly. However, the way the telephone works is still the same. I. What has become an important part in our daily life? 2. What do the words " tele" and" phone " mean? 3. How does the telephone carry sound over a distance? 4. Who invented the telephone? 5. When was the telephone invented? 6. Has the design of the telephone set changed a lot since its invention? 2.Alexander Graham Bell was born in Scotland. He emigrated to Canada first and then to the USA in 1870s In America, he worked with the deaf-mutes at Boston University. Soon, Bell started experimenting with ways of transmitting speech over a long distance. He worked with Thomas Watson, his assistant. Bell and Watson conducted many experiments. He successfully demonstrated his invention to the public at countless exhibitions, he invented the telephone. By 1877 the first telephone was in commercial use. 1. Where was Alexander Graham Bell born ? 3. Who did Bell work with at Boston University? 4. What did Bell invent ? 5. Did Bell conduct many experiments in America? 6. Where did he successfully demonstrate his invention? 2. Where did he emigrate first ?

1 A person who leaves his own country to live in another is a-----------

a, leaver b, wanderer c, emigrant d,worker

2 People who can neither speak nor hear are the-------------

a, deaf b,mute c, deaf-mute d, mute-deaf

3 Bell started experimenting with ways of---------- speech over a long distance

a, giving b, letting c, telling d, transmitting

4 This led to the ---------------- of the telephone

a,invention b, discovery c, experiment d, example

5 Bell and his assistant ----------- many experiments in his workshop

a, got b, conducted c worked d, led

I. Đặt các từ theo đúng thứ tự để tạo thành câu có nghĩa.

1. demonstrated / Bell / . / at countless / his inventions / exhibitions / to the public

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2. neither speak / worked with people / In America, / who / Bell / nor hear / . / could

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3. the armchair / I think / . / we ought / between / and the couch / to put the rug

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4. locked cupboard / must / You / all chemicals / put / in . / and drugs
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5. may / because they / Children / drink or eat / . / all chemicals and drugs / soft drink or candy / look like
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6. try / must cover / into them / . / You / so that / electrical sockets / Children / anything / to put / do not
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