九年级英语unit9教案

1、Unit 9 When was it invented?学习目标：1学会使用含有被动语态的不同句型结构“When/ Where was it invented?” 和“What are they used for?- They are used for doing sth.”来谈论各种发明物的历史。2学习理解被动语态的含义。能够就不同的发明物与他人交流看法，发表自己的见解，并陈述理由。3了解到更多在世界上有重大意义的发明，并向那些伟大的发明家学习。一、词汇1基础词汇inventadjustable heel battery operate slipper scoopelectricbulb m

2、icrowaveoven  islandsweetsalty crispy sour potatochip mistake thin chef sprinklebeverage thousand accordingancient legend emperor boil fire leaf nearby remainnoticeproduce pleasantsmell taste metal pie bakerythrow special abacus century telescope camera term2重点短语experience airplane India develo

3、p二、日常用语1. - When was the car invented？ -It was invented in 1985.2. -When were electric slippers invented？ -They were invented last year.3. -Who were they invented by？ -They were invented by Julie Thompson.4. -What are they used for？ -Theyre used for seeing in the dark.三、知识讲解Section A:1.被动语态谓语动词的语态表示

4、句子的主语和谓语动作之间的关系：1）当句子的主语是谓语动作的执行者时，主、谓之间的关系称为主动语态；2）当句子的主语是谓语动作的承受者时，主、谓之间的关系称为被动语态。 例如： I teach English.（主动语态）我教英语。 Our English is taught by him.（被动语态）我们的英语是由他教的。 He speaks English.（主动语态）他说英文。 English is spoken in many countries all over the world.（被动语态）世界许多国家都讲英语。在被动语态的句子中，谓语部分的结构是be + p.p.（过去分词）。

5、被动语态的句子有时态的变化，这个变化反映在be动词上。也就是说，把一个句子做成被动语态的句子，只需要写出be动词的所需时态，再加上所给动词的过去分词就行了。当然，这只是指谓语部分而言。我们知道，be动词作为一个独立的谓语动词有自己现在分词（being）和过去分词 （been）。那么，下面我们来看看be在各种时态中的变化形式：一般现在时 am / is / are 一般过去时 was / were 一般将来时 shall / will + be 过去完成时 had + been现在进行时 am / is / are + being过去进行时 was / were + being 现在完成时 ha

6、ve / has + been 过去将来时 would / should + be 说明：1）以上的八个时态可用于被动式，其它没有列举的时态都不宜用于被动语态的句子中。2）另外，表中被斜线隔开的词表示根据具体情况作选择。弄清楚了be在各种时态中的变化形式以后，我们就能很轻松地写出被动语态的各种时态了。 我们可看看下面的实例： English is spoken in many countries all over the world .（一般现在时） 世界上许多国家都讲英文。 Some TV sets for sale in the department store were stolen l

7、ast night. 那家商场用来出售的部分电视机昨晚被盗。（一般过去时） He won't be allowed, by his father, to marry Laura. （一般将来时） 他父亲不会让他娶劳拉为妻的。 They would be sent to the army when they finished the training. 他们结束训练时将被派往部队。（过去将来时） The project is being carried out.（现在进行时） 这个计划正在执行中。 The case was being investigated then.（过去进行时）

8、那时这案子正在调查中。 This novel has been translated into several languages. （现在完成时）这本小说已被译成了几种语言。 They said that production costs had been reduced. （过去完成时）他们说生产成本已经下降了。2. be used for 被用来做What is the book used for? 书是用来做什么的？ The book is used for reading. 书是用来读的 The plane is used for traveling. 飞机是用来旅行的3. acco

9、rding to 根据，按照4. in this way 这样5. give sb. some time to do sth 给某人一些时间做某事.The teacher gives the student two hours to do homework. 老师给同学们两个小时做作业。6. help sb. do sth. 帮助某人做某事Ill help you leave the island. 我将帮助你离开岛屿。7. by accident 偶然的 by mistake 错误的8. fall into 落入，陷入9. in the end= at last=finally 最后10.

10、make sb. adj. 使某人make me happy 使我开心11. sb. callednamed 被叫作，被称作a chef called Black. 一个叫布莱克的厨师a doctor named Amy 一个叫艾米的医生12. sprinkle a lot of salt on chips 在薯片上洒大量的盐13. decide to do sth. 决定做某事I decide to taste the hot tea 我决定品尝热茶。14. notuntil 直到才You cant leave until I arrive. 直到我到了你才能走。I cant watch T

11、V until I finish my homework. 到我完成作业，我才能看电视。15. be discovered in 年代be discovered in 地方The tea was discovered in China in 1610. 茶是在1610年在中国被发现的。16. over three thousand years 三千年以上17. produce a pleasant smell 产生一股令人愉快的气味18. over an open fire. 在明火上19. in sixth century在第六世纪  in nineteenth century.在

12、十九世纪练习：一、根据开头字母，补全单词1. Do you know who the computer was i _by?2. The seat belt on a plane are a _.3. It was a big m_ to leave my umbrella at home.4. A c_ is a hundred years.5. Boys, stop t_ stones to the poor dog.二、单项选择1. The bridge _ by the farmers themselves in 1982.     

13、A. built B. was built C. build D. was build2. All the books will _ to the children who live in the small village.      A. be sentB. sent C. be send D. send3. Keys _ used for _ the doors.      A. is, openingB. is, openedC. are, opening D. are opened4.

14、 My mother told me that my homework must _ on time.      A. finish B. be finish C. be finishedD. finished5. The police found the lost car _.      A. with mistakeB. by accidentC. by mistake D. in accident6. I dont like this kind of potato chips becaus

15、e they are not _.      A. crispyB. sweetC. soft D. sour7. They decided _ at the end of this month.      A. to leave B. going back C. travelD. not stat out8. Its used for _ clearly in the dark.      A. seeing B. see C. looking

16、 D. look9. When _ the car _?      A. did, invent B. was, inventedC. does, invent D. in, invented10. Jack _ leave _ his teacher comes back.      A. doesnt, untilB. /, until C. wont, / D. wont, until三、完型填空I found out one time that doing a favor for som

17、eone could get you into a lot of trouble. I was in the eighth grade at the time, 1we were having a final test. 2the test, the girl sitting next to me 3 something, but I didnt 4. So I leaned over her way and found out that she was trying to ask me if I had an extra 5. She showed me that hers was out

18、of ink and would not write. I 6to have an extra one, so I took it out of my pocket and put it on her desk.Later, after the test papers had been 7 , the teacher asked me to stay in the room when all the other students were 8 . As soon as we were alone, she began to talk to me about what it meant to 9

19、 up ；She mentioned how important it was to 10 on your own two feet and be responsible（有责任感的）for your own acts. For a long time, she talked about 11 and emphasized(强调) the fact that when people do something dishonest(不诚实), they are really 12 themselves. She made me promise that I would think seriousl

20、y about all the things she had said, and then she told me I 13 leave. I walked out of the room 14 why she had chosen to talk to me about all those things.Later on, I found out that she thought I had 15 on the test. When she saw me lean over to talk to the girl next to me, it looked as though I was 1

21、6 something from the girls test paper. I tried to explain about the pen, but all she could say was it seemed really 17 to her that I hadnt mentioned anything about the pen the day she talked to me right after the test. 18I tried to explain that I was just doing the girl a 19by letting her use my pen

22、, I am sure she 20 to believe that I had cheated（作弊） on the test. 1. A. whenB. whileC. then D. and2. A. DuringB. AfterC. Before D. For3. A. showed B. askedC. whispered D. lost4. A. listen  B. understand C. answerD. find5. A. pen B. pencil C. paperD. ink bottle6. A. asked B. happened C. regretted D. wished7. A. marked B. finished C