初中英语unit9复习.ppt

Unit 9 When was it invented ?When was it invented ? 英语中的动词有两种语态：主动语态 (The Active Voice)和被动语态(The Passive Voice)。主动语态中，主语是 谓语动作的执行者，被动语态中，主语 是谓语动作的承受者。 被动语态的构成：be +及物动词的过去 分词 被动语态(The Passive Voice) 1.被动语态定义 被动语态表示主语是动作的承受者。如：The telephone was invented by Bell in 1876. 2.被动语态的构成 被动语态由“助动词be+及物动词的过去分词“构成。 助动词be有人称、数和时态的变化，其变化规则与be作为 连系动词时完全一样。如：(1).It was invented in 1876. (2)They are used for listening to music. 3.被动语态的用法 当我们不知道谁是动作的执行者或者没有必要指出谁是 动作的执行者，或者只须强调动作的承受者时，要用被 动语态，如：English is spoken in Canada Grammar: The passive voice(被动语态） 一般现在时 am / is / are + p.p 一般过去时 was / were + p.p 一般将来时 shall / will + be + p.p 过去将来时 would / should + be + p.p 现在进行时 am / is / are + being + p.p 过去进行时 was / were + being + p.p 现在完成时 have / has + been + p.p 过去完成时 had + been + p.p 含有情态动词的被动语态： can / may / mustbe + p.p 主动句变被动句的方式： 主动句： 主语 + 及物动词谓语 + 宾语 被动句： 主语 + be + 过去分词 + by 宾语 Our teacher loves her students. Her students are loved by our teacher. 请把下列主动句变为被动句: They produced that kind of car. The workers built a bridge over the river. Mother tells me a story every day. That kind of car was produced by them. A bridge was built by the workers over the river. I am told a story by Mother every day. 用所给动词的正确形式填空： 1) The bike _(fix) up by Xiao Ming yesterday. 2) Sunglasses _ (use) for protecting peoples eyes. 3) A picture _(put) up on the blackboard. 4) French_ (speak) in France. 5) Teenagers should _(allow) to choose their own clothes. was fixed are used is put is spoken be allowed 动词动词 填空： 1. The TV _ (invent) around 1927. 2. They are used for _ (see) in the park. 3. This kite _ (make) by Uncle Wang. 4. Tea _ (discover) a long time ago. 5. Our classroom _ (should clean) every day. was invented seeing was made was discovered should be cleaned 句型转换 1.People all over the world enjoy surfing .(同义句转换) Surfing _ _ by people all over the world. 2.When he was thirty , Tom decided to move to London .(同义句转换） At the _ of thirty , Tom made a _ to move to London . 3.Kate took good care of the baby yesterday evening .(改为被动句） The baby _ _ _ _ _ by Kate yesterday evening . 4.She was seen to come out of the library by him .(改为主动句) He _ _ _ out of the library . 5.The League was founded in Guangzhou in 1922 .(对画线部分提问) _ _ _ _ the League _ ? is enjoyed age decision was taken good care of saw her come When and where wasfounded 6.Did you see the film last night ?(改为被动句) _ the film _ by you last night ? 7.Li Lei gave Tom a new pen last week .(改为被动句) A new pen _ _ _ Tom last week . 8.He didnt go to bed before he finished his work .(同义句转换) He _ _ go to bed _ he finished his work . 9.They are used for seeing in the dark .(对画线部分提问) _ are they used _ ? 10.I think the most helpful invention is the light bulb .(对画线部分提 问) _ do you think _the most helpful invention ? Was seen was given to did notuntil What for What is 11.His father bought a computer for him last month .(改为被动 句) A computer _ _ for him last month . 12.English is widely spoken in the world .(改为主动句) People _ English _ in the world . 13.It was invented in 1888 .(对画线部分提问) _ was it _ ? was bought speakwidely When invented 根据句意，填空。 1.The abacus was _ by Chinese people . 2.Li Lei likes _ cookies because they are hard , dry and easily broken . 3.The meat produced a _ smell . 4.The most popular drink in the world was invented by _. 5.I think the most useful invention is the _ oven . 6.There are many _(发明) in this museum. 7.How was the tea _(发明)? 8.Silk is _(生产) in Suzhou and Hangzhou . 9.He always makes a lot of _(错误) in class . 10.There are many yellow _(叶子) on the road . accident, invent, microwave, crispy, pleasant invented crispy pleasant accident microwave inventions invented produced mistakes leaves ( )1._ a new library _ in our school last year? A. Is; built B. Was; built C. Does; build D. Did ; build ( )2. An accident _ on this road last week. A.has been happened B. was happened C. is happened D. happened ( )3.Cotton（棉花） _ in the southeast of China. A. is grown B. are grown C. grows D. grow ( )4.So far, the moon _ by man already. A.is visited B. will be visited C. has been visited D. was visited ( )5.A talk on Chinese history _ in the school hall next week. A. is given B. has been given C. will be given D. gives ( )6.How many trees _ this year? A. are planted B. will be planted C. have been planted D. planted A B C B C D ( )7.A lot of things _ by people to save the little girl now. A. are doing B. are being done C. has been done D. will be done ( )8.-When _ this kind of computers_? -Last year. A. did; use B. was; used C. is; used D. are; used ( )9.The Great Wall _ all over the world. A. knows B. knew C. is known D. was known ( )10.Who _ this book _? A. did; written B. was; written by C. did; written D. was; written ( )11.A story _ by Granny yesterday. A. was told us B. was told to us C. is told us D. told us B B C B B 如何写说明文 1.说明的先后顺序 2.某产品的用途、特点 3. 充分发挥想象力，谈自己的感受。 产品介绍的常用句型以及词汇： Here Im glad to tell you something was/were invented by be made of/from It is/They are used for with the help change peoples life improve the quality of peoples life convenient comfortable important helpful useful 发明改变了世界、改变了我们的生活。比如，电视和自行 车给我们的生活带来了许多变化和便利。请你以“inventions” 为话题，根据提示写一份值日报告。先介绍电视和自行车的 用途，在发挥想象力，说说你想发明的东西，并说明其用途 或发明的理由。 电视：信息丰富，开阔视野，休闲娱乐，辅助学习 自行车： 价格便宜，方便，出行有利环保，有益健康 Good morning, everyone! Im on duty today. Its June 5th.It is fine. Everyone is here. Today Im going to talk about inventions. Inventions are created every day because people would like to make life easier. There are famous inventions like the TV and bicycle. We watch entertainment programs to relax ourselves. Besides, some learning programs helps us with our study on TV. The bicycle is very useful, too. We go to school or work by bike. Its not so expensive that most of us can afford it. It makes no pollution, which is good for our environment. Whats more, bicycle riding is a kind of exercise sports which is quite good for our health. Though there have been many great inventions, I wish to invent a kind of pen which can help me write more quickly and neatly. Thats all. Thank you very much. 1. 被用来做 2.带有可调整跟的鞋 3.电控拖鞋 4.改变鞋的款式 5.上一节历史课 6.私人电脑 7.手控计算器 8. 我的一些朋友 9.被发明 10.被发明在1876 11.一项恼人的发明 be used for doing sth. be used to do sth. shoes with adjustable heels battery-operated slippers change the style of the shoes take a history class personal computers hand-held calculators some friends of mine be invited by be invited in 1876 an annoying invention 1. 错误地 2. 不够薄 3.足够咸 4.使顾客高兴 5.最后 6.在的尽头/末尾 7.薯片的历史 8. 撒了许多盐在上面 9.炸了很长时间 10.心情不好 11.薄片的薯片 by mistake not thin enough