Unit 2 Discovering Useful Structures ppt课件-（2019）新人教版高中英语必修第二册(1).pptx

1、Discovering Useful Structuremade by Mary-report an ongoing eventLearning goaLsKnowledge objectives: Using the present continuous passive voice correctly. Make language expression more accurate.Skill objectives: Master the form and meaning of the present continuous passive voice.Emotional objectives:

2、Understand what happens to animals and arouse awareness of environmental protection.Thinking quality objectives:Think deeply about what we can do for wildlife and express our ideas.reviewmake out看清；分清；听清；辨认出；理解看清；分清；听清；辨认出；理解make up组成；编造；化妆；弥补组成；编造；化妆；弥补make of 由由组成组成 (可以看出原材料可以看出原材料)make from 由由组成组

3、成 (看不出原材料看不出原材料)make it 获得成功；渡过难关；准时到达获得成功；渡过难关；准时到达observe sb do sth 看到看到/注意到某人做了某事注意到某人做了某事observe sb doing sth 看到看到/注意到某人正做某事注意到某人正做某事with/without reserve 有有/无保留地无保留地nature reserve 自然保护区自然保护区reserve a table 预订餐桌预订餐桌reserve the right 保留权利保留权利heart attack/disease心脏病心脏病under attack 受到攻击受到攻击be/get at

4、tacked 被攻击；被袭击被攻击；被袭击recover from 从从中康复中康复recover oneself 站稳；静下心来；恢复过来站稳；静下心来；恢复过来make a full recovery 全面康复全面康复 recover from 从从中康复中康复recover oneself 站稳；静下心来；恢复过来站稳；静下心来；恢复过来make a full recovery 全面康复全面康复be intended for专为专为而设计的而设计的be intended to do sth 打算做某事打算做某事intend doing/to do sth 打算打算/计划计划/想要做某事想

5、要做某事Simple（一般）Continuous（进行）Present（现在）do/doesTenseis/am/are doingPerfect（完成）Perfect continuous（完成）Past（过去）Future（过去）The past future（过去将来）have/has done have/has been doingdidwas/were doinghad doneHad been doingwill/shall dowill/shall be doingwill/shall have donewill/shall have been doingshould/would

6、 doshould/would be doingshould/would have doneshould/would have been doingreviewThey are being hunted, illegally, for their valuable fur.Much is being done to protect wildlife.The workers are building the house.the workers.What are the workers doing ？The house is being built by主语主语谓语谓语宾语宾语The worker

7、sare building the house宾语宾语主语主语 谓语变被动谓语变被动 （时态不变）（时态不变）be+being+done+bySomeone is hunting African elephant.someone .African elephant is being hunted by主语主语谓语谓语宾语宾语Someone is hunting African elephant宾语宾语主语主语 谓语变被动谓语变被动 （时态不变）（时态不变）be+being+done+by( )They are hunting Tibetan antelopes.them .Tibetan an

8、telopes are being hunted by主语主语谓语谓语They are hunting Tibetan antelopes宾语宾语主语主语 谓语变被动谓语变被动 （时态不变）（时态不变）be+being+done+by宾语宾语( )The usage or funcTions1表示此时此刻正在进行的被动动作。2表示现阶段正在进行的被动动作(该动作在说话的瞬间未必正在进行。)My sister is now being interviewed.Many interesting experiments are being carried out these days.(说话时，并不

9、一定正在进行)3表示一种经常性的被动行为，常和always，constantly 等表示频度的副词连用，这种用法常常带有赞扬或厌恶的感情色彩。He is always being praised by the leader.4表示按计划或安排主语将要承受谓语动词所表示的动作(仅限于少数及物动词)。A party is being held tonight.My computer is under repair.My computer is being repaired.speciaL cases1.像take care of, look after, talk about, think of等

10、动词与介词构成的短语用于现在进行时的被动语态时, 其中的介词不可省略。The ways to stop illegally hunting are being talked about. 2可与部分情态动词连用，表示对正在发生的事情的推测。She may be being punished by her mother.3有时可表示按计划或安排将要进行的一个被动动作。A celebration is being held this weekend for his success.4某些表示“状态、心理活动、存在”等的动词，如have，want，need，love，一般不用现在进行时的被动语态，而

11、常用一般现在时的被动语态。With the population increasing，more land is needed.5“beunder/inn.”可表示现在进行时的被动意义。肯定句肯定句 be(am/is/are)being done否定句否定句 be(am/is/are)notbeing done一般疑问句一般疑问句be(am/is/are)主语主语being done特殊疑问句特殊疑问句特殊疑问词特殊疑问词be(am/is/are)主语主语being donepresenT conTinuous passive voicepresenT conTinuous passive v

12、oicepresenT conTinuous passive voiceare being caughtare being soldare being killedis being destroyedare being coveredis being pollutedpresenT conTinuous passive voiceA:What is being done in ourneighbourhood to protect animals and plants?B:Well,the old trees in the park arebeing protected.A:Oh yes.Th

13、ey are being protected not only because they are very old but also because they are the natural habitat for songbirds.presenT conTinuous passive voiceC:Thats right. Perhaps they could help protect the birds by making the roads around the park free from cars. D:Yes,that would certainly help makethe a

14、ir cleaner for them .pracTice1. 最近正在制订勘探南极的计划。The plan to explore the South Pole is being made these days.2. 由于成绩不好, 吉米此刻正在挨他父亲责备。Because of bad scores, Jimmy is being blamed by his father at the very moment. 3. 正在设计一个保护自然资源的项目。A project about protecting the natural resources is being designed. 4. 最

15、近很多有趣的实验正在进行。Many interesting experiments are being carried out these days. 5. 现在这些孩子被一个慷慨的商人照顾着。These children are being looked after by a generous businessman now.6. 稍等。晚餐的菜正在厨房里做着呢。Wait a minute. The dishes for the dinner are being cooked in the kitchen. 7. 他们目前正和父母住在一起, 因为他们的房子正在维修。They are livi

16、ng with their parents for the moment because their own house is being repaired. 8. 由于太多的错误, 此刻他正在被老师惩罚。He is being punished by our teacher at the moment because of so many mistakes.9.几条新路线正在修建, 最近就要完成了。Several new lines are being built now and will be completed in the near future. 10.令老师生气的是, 他的学生老是犯同样的错误。To the teachers anger, the same mistakes are always being made by his students. pracTicesummarysummary肯定句肯定句 be(am/is/are)being done否定句否定句 be(am/is/are)notbeing done一般疑问句一般疑问句be(am/is/are)主语主语being done特殊疑问句特殊疑问句特殊疑问词特殊疑问词be(am/is/are)主语主语being donehomeworkThank you for your listenning!Mary