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1、Unit 3 Inventors and inventions 同步练习一、 Read the text on pages 20-21 of Students Book 8 and make the best choices. 1. The purpose of the text is _.A. to show us how to trap the snakes but not to kill themB. to tell people how to apply for a patent of the writers new ideaC. to introduce the writers ne
2、w idea of trapping the snakes and her application for a patentD. to tell the readers how to get a new idea and make it a patent 2. How did the writer catch the snakes? A. Using something the snakes were interested in to attract them into a trap.B. Taking their habitat to another place.C. Placing the
3、 snakes at a low temperature for them to sleep and then caught them.D. All the above. 3. How did the snakes react in the first attempt?A. They escaped immediately. B. They bit the writer.C. They were very sleepy. D. They had no reaction. 4. Which statement is TRUE according to the text?A. The snakes
4、 were so sleepy in the second attempt that they couldnt bite the writer at all.B. Your product must be different from everybody elses if you want to receive a patent.C. The writer decided to send her invention to the Patent Office the moment she succeeded in catching the snakes.D. If an application
5、for your product proves to be valid, you can get a patent immediately.5. According to the text, which of the following do you think can be given a patent?A. A new star discovered by a scientist.B. A new novel written by your Chinese teacher.C. A new way to make dirty water clean.D. A new kind of gra
6、ss found in a mountain which can be used as a medicine.二、Read the text on pages 25-26 of Students Book 8 and fill in the following form.Born in 1452, Leonardo da Vinci grew up in the 1 countryside. But his drawing ability allowed him to study under a famous painter, from whom he gradually learned th
7、e skills needed to be a great artist. Unfortunately, at this time painting did not always provide a steady 2 , so he developed his drawing skills to earn money in other ways.Leonardo probably became interested in machines when he was a boy. While he was studying, he observed and used 3 machines. By
8、studying and drawing them, he gained 4 about their design and structure. Nobody seemed to have thought about inventing new machines. 5 , Leonardo was different. His understanding of machines was more important because by understanding 6 each separate machine part worked, he could improve them and co
9、mbine them in different ways to improve existing machines, which led to a lot of 7 . Based on the gear, he 8 numerous designs, including the bicycle, a helicopter, an “automobile and some weapons of course.Today we think of him as one of the greatest 9 , but if he had never been a painter, we would
10、still appreciate him as one of the greatest 10 of his time.1. _ 2. _ 3. _4. _ 5. _ 6. _7. _8. _ 9. _10. _ 三、Complete the following sentences with the proper forms of the words given. 1. It is known that some great scientific _ occurred by chance. (discover) 2. As soon as the _ are introduced to the
11、market, they enjoyed great success. (produce) 3. We like the _ of shopping online, but worry about its safety. ( convenient) 4. Compared to the parents _, what we have achieved is too little. (expect) 5. He has become so fat that he was beyond _. (recognize) 6. Every student had an _ form in his han
12、d, but no one knew whom to send it to. (apply) 7. They are busy with their study and only see each other very _. (occasional) 8. He had promised to go with us, but he changed his plan _. (abrupt) 9. The people who suffer from sandstorms know the _ of environmental protection. (important)10. As time
13、went by, the plan he made proved fairly _. (practice)四、Complete the following sentences without changing the meaning (one word for each blank). 1. After hearing the shout of the police, the thief ran away immediately.After hearing the shout of the police, the thief ran away _. 2. All the teachers we
14、re very glad that their plan had been carried out in the last school year.All the teachers were glad to see their plan _ out in the last school year. 3. The machine has operated for such a long time that it does not work any more.The machine has operated for such a long time that it is _ _ _ now. 4.
15、 She is busy with her job and only comes home from time to time.She is busy with her job and only comes home _ _ _. 5. The hero s deed inspired him greatly.He felt greatly _ _ the heros deed. 6. The husband left home, for he cant put up with his wifes bad temper.The husband left home, for he cant _
16、his wifes bad temper. 7. Hold on, please. My mom is coming._ _, please. My mom is coming. 8. Many people are satisfied with the present situation they are faced with.Many people are satisfied with the _ situation they are faced with. 9. This is one of all the most important problems we are facing.Of
17、 all the problems we are faced with, this one is _ _ _ _.10. Keep up, and you are bound to pass the mid-term exam.Keep up, and you are sure to _ _ the mid-term exam.五、 Translate the following sentences into English.ciple) 2. 这一家人搬走了，因为这里经常交通堵塞，孩子上学不方便。(traffic jam; convenient) 3. 清扫完房间之后，她开始做饭。(set
18、about) 4. 这种药的有效期是三年。(valid) 5. 你最好给他打个 以防他忘了确切的时间。(call up; in case) 6. 没有人能认出额头上点了很多墨汁的那个人。(recognize; dot; forehead) 7. 由于梯子用金属线捆在树上，所以很稳。(wire; stable) 8. 他太被动了。事实上，他应该得到这次时机。(passive; in truth) 9. 她最近一直忙于申请专利的事，没时间清扫家，所以家里很乱。 (apply for a patent; tidy; mess)10. 他正在整理文件，所以决定一会给他的朋友回 。(file; ring
19、 back)参考答案：一、CCABC二、1. Italian 2. income 3. a variety of 4. knowledge 5. However 6. how 7. inventions 8. came up with 9. painters 10. inventors三、1. discoveries 2. products 3. convenience 4. expectation 5. recognition 6. application 7. occasionally 8. abruptly 9. importance 10. practical四、1. abruptly
20、 2. carried out 3. out of order 4. now and then 5. inspired by 6. bear 7. Hang on 8. current 9. of the greatest importance 10. get through五、1. He found a magazine marked with his teachers name lying on the desk.2. The family moved away, because there are so frequent traffic jams and it isnt convenie
21、nt for children to go to school. 3. Having cleaned the room, she set about preparing the dinner.4. The medicine is valid for three years.5. Youd better call him up in case he doesnt remember the exact time.6. No one can recognize the man with much ink dotted on his forehead.7. As the ladder is tied to a tree with wire, it is quite stable.8. He is too passive. In truth, he should have the chance.9. She is busy with applying for a patent recently, and has no time to tidy her house which is in a mess now.10. He was sorting out files, so he decided to ring his friend back later.