高中英语人教版 (2019)必修 第二册Unit 3 The internet课文配套课件ppt

这是一份高中英语人教版 (2019)必修 第二册Unit 3 The internet课文配套课件ppt，共27页。PPT课件主要包含了语法精讲透析，生产·得，havehas，不及物，a new bike，A new bike，to him，宾语补足语，课时素养达标等内容，欢迎下载使用。
【体验·悟】阅读下面课文原句, 回答以下问题。原句1 There are cuntless articles telling us hw the Internet has made ur lives mre cnvenient. 原句2 Peple’s lives have been changed by nline cmmunities and scial netwrks.
have/has dne
have/has been dne
【研学·析】一、现在完成时被动语态的概念现在完成时被动语态强调一个发生在过去的被动性动作对现在造成的影响, 它有两层含义:1. 动作已_____, 强调对现在造成的影响或结果;2. 主语与谓语动词之间为_____关系。如:Our classrm has been cleaned; yu needn’t clean it nw. (强调教室已被打扫, 对现在造成的影响是教室是干净的)
二、现在完成时被动语态的主要用法1. 主语是行为动作的承受者。如:※The ancient temple has been rebuilt. 这座古庙已经被重建。2. 说话时已经完成的动作或出现的结果, 强调对现在造成的影响。※The dr has been lcked. 门已经被锁上了。(结果是现在没人能够进去)
3. 动作或状态始于过去, 持续到现在, 并可能持续下去, 常与fr引导的时间状语连用, 或用于“Hw lng. . . ?”句型中。如:※He has been tld abut it many times. 有人告诉他这事很多次了。(可能还会有人告诉他)
三、使用现在完成时被动语态注意事项1. 副词的位置ften, usually, always, never, hardly, seldm等副词置于①________和②__________中间。如:[误]Such a man has been hardly believed. [正]Such a man has hardly been believed.
2. 并不是所有动词都有被动语态。如:happen, take place, break ut, belng t, cst, last等 _______动词或词组无被动语态。如:[误] Great changes have been taken place in China since 1978. [正] Great changes have taken place in China since 1978.
3. 但许多不及物动词加介词或副词构成的动词短语, 相当于及物动词, 也可以有被动语态。但动词短语是一个不可分割的整体, 变为被动语态时, 不可丢掉构成短语的①_____或②_____。如:※The child has been taken gd care f by Grandma Wang all these years. 这些年来, 这孩子一直受到王奶奶的照顾。 ※A ntice has been put up n the wall. 墙上贴了张告示。
4. 接双宾语的动词变为被动语态时, 常将①_____宾语变为主语;但若直接将②_____宾语变为主语, 则需要在间接宾语前加上适当的③_____(t 或fr)。※His parents have given him a new bike recently. ④___has been given __________(by his parents) recently.  ⑤__________has been given ______(by his parents) recently.  
5. 带有复合宾语的动词在变为被动式时, 只能够把主动结构中的宾语变为主语, 而原来的①___________则保留在谓语动词后面。※I have asked him t pst the letter. ②_______________________________ 
He has been asked t pst the letter.
四、现在完成时被动语态的否定式和疑问式从现在完成时被动语态结构has/ have been dne可以看出has/ have为助动词, 因此现在完成时被动语态的各种句型变换均应借助于has/ have来完成。构成否定句时直接在has/have后面加nt, 构成一般疑问句时将has/ have提前, 构成反意疑问句时, 附加问句借助hasn’t/haven’t。如:※His hmewrk hasn’t been finished. 他的家庭作业还没有写完。※Has this bridge been cmpleted? 这座桥竣工了吗?※The blackbard has been cleaned, hasn’t it?黑板已经擦过了, 是吗?
【知识延伸】现在完成时被动语态例题讲解[例1] Paper mney _______fr ver a thusand years.  A. used　　　　　　　　B. has been usedC. has usedD. is using [分析] 主语和谓语是被动关系, 而且时间状语是一个时间段, 根据题意, 谓语动词所要表示动作可能还要继续下去, 符合现在完成时, 所以应该是现在完成时的被动式。答案是B。
[例2] —We want t sit at the table near the windw. —I’m srry, but it _______already.  A. has takenB. tkC. was takenD. has been taken [分析] 从题干中的答语知道, 座位已经有人坐了, 说明结果。所以应该用现在完成时的被动式。答案是D。
[例3] —_______ the letter _______t Mr Black? —N. It’s still n the desk. A. Has; givenB. Will; be givenC. Was; givenD. Has; been given[分析]此题是一道问答情景题。问话人想知道的是动作的结果, 所以应该是现在完成时的被动式。其疑问式是把这一结构中的助动词have或has提前, 所以正确答案是D。
[例4]—Hw lng _______at this jb? —Since 1990. A. were yu emplyedB. have yu been emplyedC. had yu been emplyedD. will yu be emplyed[分析] hw lng 引导的是一个特殊疑问句, 从hw lng和 since 1990我们可以确定应该是现在完成时, 再从意义上看, 应该使用被动语态, 所以答案应该是B。
[例5] The reasn fr all the changes being made _______t us yet.  A. has nt explainedB. has nt been explained C. didn’t explainD. were nt explained[分析] the reasn是主语中心词, 它和谓语explain之间是被动关系;题干的意思是:还没有给我们解释作出变化的理由。应该是现在完成时的被动式的否定式。答案是B。
[例6] Great changes _______in my hmetwn and a lt f factries _______.  A. have been taken place;are being set upB. have taken place;have been set upC. are taken place;had been set upD. had taken place;will be set up[分析] take place是不及物动词词组, 因此没有被动语态;而factries和set up之间是被动关系;根据题干可以看出, 都应该是现在完成时, 所以答案是B。
【内化·用】完成下列含有被动语态的句子。①They have built many huses in the village in the past few years. →Many huses ______________in the village in the past few years.  ②They shuld have cmpleted the prject earlier this mnth. →The prject shuld __________________earlier this mnth.  ③Jack’s bss has always praised him fr his devtin t wrk. →Jack _____________________by his bss fr his devtin t wrk.  
have been built
have been cmpleted
has always been praised
④They have fund a gd place t build a nest in the cmmunity. →A gd place _____________t build a nest in the cmmunity.  ⑤They haven’t yet decided hw t slve that difficult technlgical prblem. →Hw t slve that difficult technlgical prblem _________________yet.  
has been fund
hasn’t been decided
常温故·勤总结现在完成时的被动语态　　现在完成时被动语态的结构就是现在完成时态和被动语态结构的叠合, 即“have/has+been+动词过去分词”。现在完成时被动语态的主要用法:1. 表示被动的动作发生在说话之前(即现在的过去), 强调对现在造成的影响和结果。当动词为短暂性动词时, 可与already或yet连用, 但不可与fr或since引导的时间状语连用。
2. 表示一个被动的动作或状态开始于过去, 持续到现在, 并可能持续下去, 常与fr或since引导的时间状语连用, 或用于Hw lng. . . ?句型中。连用的时间状语有:already, yet, lately, recently, in the past/last few days/years, since then, up t nw, s far 等。3. 由finish, buy, start, begin, pst, return, brrw, jin, marry, pen等非延续性动词构成的现在完成时的被动语态不能与表示一段时间的状语如fr fur days, hw lng等连用, 而要改换动词或时态。4. 动词短语是一个不可分割的整体, 在被动结构中要保持其完整性, 不可省略动词短语中的介词或副词。
Ⅰ. 用所给词的适当形式填空1. Wh will be sent there _________________(nt decide) yet.  2. S far, almst tw-thirds f this bk ______________(learn) in all.  3. It is said that the bridge ______________(clse) fr repairs fr mnths.  4. Our schl area ________________(enlarge) many times in the last few years.  5. This is ne f the farthest places that _________________(explre) s far in that cuntry.  
has been learnt
has been clsed
has been enlarged
have been explred
6. In recent years, much prgress _____________(make) as a result f his effrts.  7. Mst f the buildings __________________(destry), leaving many peple dead r injured.  8. By nw, all the letters ______________(type) fr yur cnvenience.  
has been made
have been destryed
have been typed
Ⅱ. 完成句子1. The rm ______________________.  房间已打扫干净了。2. Hw lng _______________________? 这机器使用有多久了?3. ________________________since last week.  自上周以来, 没有人来买过书。4. The rphan _______________________.  这位孤儿一直受到很好的照顾。
has already been cleaned
has the machine been used
N bks have been bught
has been well lked after