人教版 (新课标)必修1&2Unit 3 Computers示范课ppt课件

这是一份人教版 (新课标)必修1&2Unit 3 Computers示范课ppt课件，共38页。PPT课件主要包含了Revision，现在完成时的被动语态，Practice1，show，recently，Practice2 ，use，你会改错吗，你会变被动吗，你会做这些高考题吗等内容，欢迎下载使用。

I have just arrived here.I have just seen yur English teacher, Miss Zhu.I have already knwn frm Miss Zhu that yu are the best students.Zhu Chen has learned music fr many years. Wu Hayang has played basketball since he came t this schl.
The Present Perfect Tense现在完成时表示过去的动作对现在的影响或者是动作发生在过去,并持续到现在.have/has +过去分词
经常用于现在完成时的时间状语: recently, already, just, yet ;since, fr 等.
D yu knw me?I have been an English teacher fr 20 years.I have just learned t drive a car.I have already visited England twice.I have never swum in the sea. Guess! Hw lng have I lived in Xi’an? Since I was brn.When was I brn? Oh, it’s a secret!
Wang Jialei has bught a new persnal cmputer.An unknwn virus has just attacked his cmputer. His friend has repaired his cmputer quickly.He has nt slved this prblem yet.
A stry in ur class
Wang Jialei has bught a new persnal cmputer.
A new persnal cmputer has been bught by Wang Jialei.
An unknwn virus has just attacked his cmputer.
His cmputer has just been attacked by an unknwn virus.
His friend has repaired his cmputer quickly.
His cmputer has been repaired quicklyby his friend.
He has nt slved this prblem yet.
This prblem has nt been slved yet.
A new cmputer has been bught by Wang Jialei. His cmputer has just been attacked by an unknwn virus. His cmputer has been repaired quicklyby his friend. This prblem has nt been slved yet.
现在完成时的被动语态表示现在完成时(过去的动作对现在的影响或者是过去的动作持续到现在)主语与谓语之间的被动关系. 其构成是: 肯定： have/has been + 过去分词 否定： have/has nt been + 过去分词
原形 过去式 过去分词take tk takenbuy bught bughtsee saw seenbuild built builtknw knew knwnfind fund fundshw shwed shwnprepare prepared preparedcarry carried carriedput put putcut cut cut
We have made a plan f ging hiking.Tm has prepared a tent.Tim has bught a lt f snacks.Mary has taken bttles f water.We have carried ur backpacksSet ut! Oh, it is raining heavily.
Anther stry in ur class
We have made a plan f ging hiking.
A plan f ging hiking ________________(make).
has been made
Tm has prepared a tent.
A tent ___________________ (prepare) by Tm.
has been prepared
Tim has bught a lt f snacks.
A lt f snacks _________________(buy).
have been bught
Mary has taken bttles f water.
Bttles f water have been taken.
We have carried ur backpacks.
Our backpacks have been carried.
Set ut! Oh, it is raining heavily.
Can yu use The Present Perfect Passive Vice express these pictures?
The gvernment has already rebuilt Beichan Middle Schl.
Beichan Middle Schl has already been rebuilt by the gvernment. .
政府已重建了北川中学rebuild
Nwadays, mre and mre peple have already knwn Little Apple.
Nwadays, Little Apple has already been knwn by mre and mre peple.
现在越来越多的人都已经知道了“小苹果”
FilmLife f Pi
Recently the film f “Life f Pi” has been shwn.
Cell phnes
Cell phnes have been used widely in China.
Can yu find the prblems arund us?Can yu express yur idea t make it inta passage?
Recently, I find sme prblems arund us.Fr example, 1.Private cars use but nw… 2.Mre tress plant but nw… 3.Many children help g t schl but nw… 4. Many buildings build but nw…I think these prblems_____ and they will _____ ne day.
Recently, I find sme prblems arund us.Fr example, a lt f private cars have been widely used everywhere but nw they maketraffic jams. Mre tress have been planted but nw air pllutin is still serius. Many children have been helped t g t schl but nw there are sme children wh quit schl at hme in the pr area. Many buildings have been built but nw many peple still can’t have huses t live in. Hw can these prblem be slved? I think these prblems have been cnsidered by ur gvernment and they will be slved ne day.
1.The wrld recrd has been ever brken by Liu Xiang.
The wrld recrd has ever been brken by Liu Xiang.
我发现了(I have discvered …)
1. 副词的位置 already, ever, just, never, hardly等副词置于have/has和been中间。如: [误] Such a man has been hardly believed. [正] Such a man has hardly been believed.
2.His cat has been lked. 他的猫已被照顾了。
His cat has been lked after.
2. 短语动词不可分割或省略其中的介词或副词。如：The SARS patients have been taken gd care f.
3. I have passed him the bk.
He has been passed the key.The bk has been passed t him.
3. 双宾语动词变被动语态可变两种。主动：I have given him the key.被动：He has been given the key.被动：The key has been given t him.
4.The traffic accident has just happened.
4. 并不是所有动词都有被动语态 1) happen, take place, break ut, belng t等不及物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.
Summary 现在完成时的被动语态（have/has been + 过去分词）
现完被动have been dne四个特点要注意：及物动词可变化副词放在have been中动词短语写周全两个宾语两变化
1. ---- Hw lng ____ at this jb? ---- Since 1990. A. were yu emplyed B. have yu been emplyed C. had yu been emplyed D. will yu be emplyed
2. --Did yu mve int the new huse? -- N. The rms ___ yet. A. were being painted B. are painting C. have nt painted D. have nt been painted
3. Great changes___ in my hmetwn and a lt f factries ___. A. have been taken place; are being set up B. have taken place; have been set up C. are taken place; had been set up D. tk place; will set up
Grup activity:Have yu fund sme changes arund yu?Discuss and write dwn mre sentences,using the Present Perfect Passive Vice．
like this:I have fund a lt f changes arund me.A subway has been built in XianMany cars have been …… …I am prud f them
四注意：现完被动have been dne及物动词可变化副词放在have been中动词短语写周全两个宾语两变化