Unit 2 Discovering Useful Structures ppt课件-（2019）新人教版高中英语必修第二册.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They are being hunted, illegally, for their valuable fur.Much is being done to protect wildlife.Someone is hunting African elephant.someone .African elephantis 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( )The usage or funcTions1

6、.现在进行时的被动语态表示说话时正在进行或发生的一个被动动作，表示“某人/某事物此时此刻正在被”.The machine is being repaired by a young worker now.现在这台机器正在被一名年轻工人修理。The African elephants are not being protected.非洲象没有得到保护。2.现在进行时的被动语态表示现阶段或目前正在进行的被动动作，但此时此刻并不一定正在发生。Many interesting experiments are being carried out these days.这些天(人们)正在做很多有趣的实验。(

7、说话时不一定正在进行) A new library is being built in our school.在我们学校(人们)正在建一座新图书馆。(说话时不一定正在修建)3.现在进行时的被动语态表示一种经常性或习惯性的被动行为常与always，forever等词连用，带有赞扬、责备或厌烦等语气。The naughty boy is always being scolded by his teacher.那个调皮的男孩总是被他的老师责备。Tom is always being punished by his parents.汤姆总是被他的父母责罚。肯定句肯定句 be(am/is/are)bei

8、ng 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 voice现在进行时的被动语态的结构sPeciaL caseslVisitors are being shown around our school.参观者们正在被带领着参观我们的学校。lJohn is being asked some personal questions by the doct

9、or.约翰正在被医生问一些个人问题。lI am sure that I am not being followed.我确信我没有被跟踪。lLily is not being treated in No.1 Hospital.莉莉不在第一医院治疗。lIs your computer being repaired?你的电脑正在被修吗?lHow is your computer being repaired? 你的电脑正在被如何维修?【例句】PresenT conTinuous Passive voice reduce vt.减少;缩小due to由于;因为Language PoinTs reduc

10、e vt.减少;缩小reduce . by . 把减少了(表示减少的程度或幅度) reduce . to . 把减少到(表示减少的最终结果) reduce . from . to 把从减少到 reduce sb/sth to . 使某人/某物陷入境地Language PoinTs due to由于;因为词条 用法thanks to 意为幸亏,多亏,多用于表达正面意思,也可表达讽刺意义,在 句中多作状语和表语 because of 意为因为,由于,强调因果关系,在句中多作状语,一般不用逗 号与其他成分隔开 owing to 与because of一样,也强调因果关系,既可作状语也可作表语 due

11、 to 意为由于,归功于,常用来作表语,也可以作状语,但作原因状 语时一般不放在句首PresenT 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 t

12、he park arebeing protected.A:Oh yes.They 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:Y

13、es,that would certainly help makethe air cleaner for them .1.不可遗漏 being。The sports meeting is being held in our school.运动会正在我们学校举行Another bridge is being built over the Yangtze River.(人们)正在长江上修建另一座大桥。2.将现在进行时的主动语态变为现在进行时的被动语态的关键是把 be doing变为be being done。The students are cleaning the classroom now.

14、The classroom is being cleaned by the students now.现在学生们正在打扫教室。3.动词短语用于现在进行时的被动语态时，其中的介词不能省去。Are the wounded being taken good care of?伤员们正在受到很好的照顾吗?The panda is being taken photos of.大熊猫正在被拍照。sPeciaL casessPeciaL cases不能用被动语态的情况happen, occur, last, spread, come about, take place, break out, lose hea

15、rt, belong to, consist of, run out 等不及物动词以及短语没有被动语态，只能用其主动形式表达被动含义。 Great changes have taken place in our country recently.最近我们国家发生了很大的变化。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 f

16、ather 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

17、。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 living 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.

18、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. PracTicesummary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