Grammar and usage.ppt

1、Unit 3 Tomorrows world Grammar and Usage,The lovely robots attracts the visitors.,The visitors are attracted by the lovely robots.,S.,V.,O.,O.,V.,S.,The Great Wall was visited by many people last year.,S.,V.,O.,O.,V.,S.,Many people visited the Great Wall last year.,被动语态的句子结构 be + 动词的过去分词 被动语态的时态变化体现

2、在be动词的形式 改变上 1. Food is kept in the fridge. 2. The glass was broken by the boy.,The passive voice in different tenses:,do/does,am/is/are done,am/is/are doing,has/have done,am/is/are being done,have/has been done,be going to/ will do,did,was/were doing,had done,be going to/ will be done,was/were done

3、,was/were being done,had been done,注意： 1. 被动语态句子中，动作的发出者常跟在by 的后面，如果动作的发出者不重要或不明确，可以省略。 1. Both the headsets and the gloves are connected to a computer network. 2. 在被动语态中，有时可以用get来代替be动词。 1. My bike got stolen last night. 2. Youd better get changed quickly, as the party will begin soon.,3. 有些动词可以用主动

4、形式来表示被动含义。 1. This sweater washes well. 2. The pen writes smoothly. 3. The kind of computer sells well in China.,4. 状态动词和系动词不能用于被动语态。 1. I like pop songs and often listen to them. 2. He has a big house near the river. 3.You can depend on her to deal with the situation.,5. 一些特殊的被动语态结构。 It + 被动结构 + th

5、at clause 1. It is said that he will recover soon. 2. It is believed that the three missing sailors have drowned. 主语 + 被动结构 + to do 1. The Sun was once thought to travel around the Earth.,常用于这种结构的动词有： say, believe, report, suppose, know, prove等。,Modal verb and the passive voice,1. 我们可以在被动语态中使用情态动词，表

6、示能力，可能性，责任，允许等。 Firefighters could be trained using RealCine. 2. 句子结构为： 主语+情态动词+be +动词的过去分词,1. It remains _ whether Jimll be fit enough to play in the finals. (浙江 2006) A. seen B. to be seen C. seeing D. to see,被动语态的高考题,2. I dont suppose the police know who did it. Well, surprisingly they do. A man

7、has been arrested and _ now. (江苏 2006) A. has been questioned B. is being questioned C. is questioning D. has questioned,3. Your job _ open for your return. Thanks.(北京 2006) A. will be kept B. will keep C. had kept D. had been kept,4. Tom sounds very much _ in the job, but Im not sure whether he can

8、 manage it. (安徽 2006) A. interestedB. interesting C. interestingly D. interestedly,5. The flowers _ sweet in the botanic garden attract the visitors to the beauty of nature. (上海 2004) A. to smell B. smelling C. smelt D. to be smelt,6. Professor James will give us a lecture on the Western culture, bu

9、t when and where _ yet. (浙江 2007) A. hasnt been decided B. havent decided C. isnt being decided D. arent decided,7. _ in the regulations that you should not tell other people the password of your e-mail account. (上海 2005) A. What is requiredB. What requires C. It is requiredD. It requires,8. Custome

10、rs are asked to make sure that they _ the right change before leaving the shop. (重庆 2006) A. will give B. have been given C. have given D. will be given,9. At the end of the meeting, it was announced that an agreement _. (江苏 2007) A. has been reached B. had been reached C. has reached D. had reached

11、,10. I got caught in the rain and my suit _. (北京 2007) A. has ruined B. had ruined C. has been ruined D. had been ruined,11. The construction of the two new railway lines _ by now. (陕西2006) A. has completed B. have completed C. have been completed D. has been completed,12. The flowers were so lovely

12、 that they _ in no time. (2007全国卷I) A. soldB. had been sold C. were soldD. would sell,13. As the years passed, many occasions birthdays, awards, graduations _ with Dads flowers. (湖南2007) A. are marked B. were marked C. have markedD. had marked,14. When you get the paper back, pay special attention t

13、o what _. (四川2007) A. have markedB. have been marked C. had marked D. had been marked,15. Leonardo da Vinci (1452 - 1519) _birds kept in cages in order to have the pleasure of setting them free. (重庆2007) A. is said to be buying B. is said to have bought C. had said to buy D. has said to have bought,16.The crowd cheered wildly at the sight of Liu Xiang, who was reported