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Exercise 3. Read the passage, then do the tasks.                 ROBOTS        A robot is a machine. But it is not just any machine. It is a special kind of machine. It is a machine that moves. It follows instructions. The instructions come from a computer. Because it is a machine, it does not make mistakes. And it does not get tired. And it never complains. Unless you tell it to!        Robots are all around us. Some robots are used to make things. For example, robots can help make cars. Some robots are used to explore dangerous places. For example, robots can help explore volcanoes. Some robots are used to clean things. These robots can help vacuum your house. Some robots can even recognize words. They can be used to help answer telephone calls. Some robots look like humans. But most robots do not. Most robots just look like machines.        Long ago, people imagined robots. But nobody was able to make a real robot. The gist real robot was made in 1961. It was called Unimate. It was used to help make cars. It looked like a giant arm.        In the future, we will have even more robots. They will do things that we can’t do. Or they will do things that we don’t want to do. Or they will do things that are too dangerous for us. They will help make life better. Choose the correct answers. 1.   As used in paragraph 1, we can understand that something special is NOT ________.        a. normal       b. expensive       c. perfect       d. tired 2.   According to the author, robots cannot be used to ________.        a. explore volcanoes       b. make cars       c. clean your house       d. do the gardening 3.   What is the main purpose of paragraph 2?        a. to show how easy it is to make a robot        b. to tell what a robot is        c. to describe the things a robot can do        d. to explain the difference between a robot and a machine 4.   Which of these gives the best use of a robot?        a. to help make a sandwich       b. to help tie shoes        c. to help read a book       d. to help explore Mars 5.   How does the author feel about robots?        a. Robots are useless.       b. Robots are helpful.        c.Robots are confusing.       d. Robots are dangerous. Exercise 4. Choose the correct answer to complete the passage.        Carrying your own bags is such a (1)_______. With Gita Robot, worry no more. This compact robot is designed to follow you around (2)_________ you’re out and about in town or on the way to work. The robot is capable (3)_________ carrying the equivalent of a case of wine, a loaded rucksack or two shopping bags, so it’s an (4)_________companion for a quick trip down to the shops. In the future, you (5)_________ be able to leave the car at home and stretch your legs without the misery of carrying your (6)_________ home. 1.   a. work       b. chore       c. part       d. way 2.   a. because       b. though       c. whether       d. while 3    a. in       b. for       c. of       d. on 4.   a. ideal       b. pleasant       c. expensive       d. uncomfortable 5.   a. can       b. could       c. will       d. might 6.   a. buying       b. shopping       c. selling       d. pushing

1) While my fatther ................(read) a newspaper ,I ............................ (learn) my lesson and my sister.............(do) her homework 2) The children....................(play) football when their mother ......................(come) back home 3) They .....................(go) home after they .........................(finish) their work 4) When we ...........................(come) to the stadium,the matches .............................(aldready,begin) 5) They told me they .......................(not,eat) such kind of food before. 6) Before she......................... (watch) TV,she ......................... (do) her homework 7) Yesterday John .......................(go) to the store before he...........................(go) home 8) When the phone .......................(ring),I..........................(have ) dinner CẨN THẬN CẤU TRÚC CỦA BEFORE VÀ AFTER NHÉ)

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