Unit 6 When was it invented?

How much do you know about international basketball teams in America? Match the right information.

The Lakers Celtics Houston Rockets Chicago Bulls 凯尔特人队 芝加哥公牛队 火箭队 湖人队

It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may ______ things which are _______ the same. It ’ s hard to tell who came up with the idea first. Some inventions can also lead to other inventions ____________. 1 complete the passage with the correct forms of the words in the box. invent doubt mention Nearly website all of a sudden invent nearly all of sudden

So some people ______ whether the inventor came up with the idea himself or herself. They think that the inventor used someone else ’ s idea to create his or her invention. That is why books or _________ usually ________ more than one inventor when giving information about inventions. doubt websitesmention

2Rewrite these sentences using the passive voice. 1. Someone stole my watch. _____________________________________ 2. They used five eggs to make this big cake. ______________________________________ 3. When did they invent the personal computer? ______________________________________ 4. They asked us not to run in the hallway. ______________________________________ 5. Someone took the video back to the store. ______________________________________ My watch was stolen by someone. Five eggs were used to make this big cake. When was the personal computer invented? We were asked not to run in the hallway.

3 Find out information about an invention you would like to know more and write sentences below. Invention: _____________ When: ________________ Who: _________________ Purpose: ______________

Exercises

一、写出下列短语的英文表达。 1. 错误地 2. 偶然 3. 根据 …… ；按 4. 用这种方法 5. 用来做 …… 6. 足够咸 7. 一个古老的中国 传说 8. 把 …… 分成 by mistake by accident according to… in this way be used for… salty enough an ancient Chinese legend divide...into

二、单项选择 1.My mother told me that my homework must ____ on time. A. finish B. be finish C. be finished D. finished 2.The number of teachers in our school ____ 60 and a number of them ____ male teachers. A. is; are B. are; is C. am; are D. be; are C A

3.If it ____ tomorrow, we ____ go to the park. A. rains; won’t B. will rain; won’t C. rains; don’t D. will rain; will do 4. All the books will ____ to the children who live in the small village. A. be sent B. sent C. be send D. send 5.—Do you know the lady____ is interviewing our headmaster? —Yes, she is a journalist from CCTV. A. which B. who C. whom D. whose A A B

三、根据中文提示完成句子。 1.There were many famous_________ ( 发明 ) in ancient China, and paper was one of them. 2.I don’t like this kind of potato chips because they are not _______ ( 脆的 ). 3.Silk is _________ ( 生产 ) in Hangzhou. 4.The conductor kept ________ ( 提供 ) us hot water on the train. inventions crispy produced offer

Review what you have learned in this unit and preview what you will learn in next unit. Homework