高中英语人教版 (2019)必修 第二册Unit 3 The internet优秀作业课件ppt

这是一份高中英语人教版 (2019)必修 第二册Unit 3 The internet优秀作业课件ppt，文件包含人教版2019高一英语必修第二册Unit3《TheInternet第3课时DiscoveringusefulstructuresGrammar语法现在完成时的被动语态》课件pptx、人教版2019高一英语必修第二册Unit3《TheInternetDiscoveringusefulstructuresGrammar现在完成时的被动语态》分层作业docx等2份课件配套教学资源，其中PPT共23页， 欢迎下载使用。

Teaching bjectives
1.Analyze the frms and features f the present perfect passive vice. 2.Find ut the differences in meaning and functin between the active and passive the functins f the present perfect passive vice in the cntext and use it in real situatins.
The Present Perfect Passive Vice
主动语态变被动语态的原则
例：They are building nine parks.
原句主语 by的宾语宾语 主语 谓语由主动 被动
原句意思不变 原句时态不变 原句主谓宾以外成分不变
Nine parks _________________ by them.
are being built
1.以上句子中所使用的时态和语态是 。2.现在完成时的被动语态的构成为： 。
have/has been＋过去分词
An enemy has been slained.一名敌人被击杀。An ally has been slained.我方队友被击杀。Yu have been slained.你被击杀了。
The students have cleaned the classrm.The classrm has been cleaned. Yu needn’t clean it nw.
表示说话时已经完成的被动性的动作或结果，主语是动作的承受者。
例2：Have they been sent abrad t study English? 他们已经被派往国外学英语了吗? 例3：Wh has been invented? 谁受到了邀请？
陈述句 主语+has/ have been（nt）+P.P.+...
例1：Her mtrbike has been stlen. 她的摩托车盗了。
一般疑问句 Has/have+主语+been+P.P.+
特殊疑问句 特殊疑问词+have/has +been +P.P.+
现在完成时的被动语态的句式：
The research has been dne successfully.
现在完成时被动语态的肯定式：have / has been dne
The authr’s new stry has nt been published.
现在完成时被动语态的否定式：have / has nt been dne
Has his washing machine been repaired?
现在完成时被动语态的一般疑问句：把have / has提到主语的前面
Wh has been invited?
现在完成时被动语态的特殊疑问句：特殊疑问词 + have / has been dne
The buildings (destry) by the earthquake already.
have been destryed
Seven Harry Prter bks (write)by J. K. Rwling s far.
have been written
用法1:被动动作发生在过去,已经完成, 对现在造成影响 或产生结果。(already, yet, s far, by nw)
现在完成时的被动语态的用法
A new bridge (build) since tw weeks ag.
has been built
Paper mney (use) fr ver 50 years.
has been used
用法2:被动动作发生在过去,持续到现在,并有可能继续 持续下去。(fr+一段时间; since)
常与现在完成时连用的时间状语 already 已经(肯定句) yet 已经（否定句或者疑问句）recently/lately 最近 since then 从那时起ever since 自那以来 ever 曾经s far 迄今为止 fr a lng time 很长一段时间by nw 到现在为止 in recent years 在最近几年里in/during/ver the past/last years在过去的几年里
现在完成时被动语态的解题步骤主语与动词构成被动关系。说话时已完成的动作或出现的结果。1. 圈主：动词的逻辑宾语用作句子的主语；2. 找时：找与现在完成相对应的时间状语；3. 定谓：确定谓语动词形式。
1. Paper mney ____________ (use) fr ver a thusand years. 2. — _____ the letter __________ (give) t Mr. Black? — N. It’s still n the desk.3. Great changes ___________ (take) place in my hmetwn and a lt f factries ____________ (set) up.
have been set
I. 用括号内动词的正确形式填空。
4. —Hw lng _____________________ (emply) at this jb? —Since 1999.5. When and where t g fr the n-salary hliday __________________ (nt, decide) yet.6. I like these English sngs and they ______________ (teach) many times n the radi.7. All the preparatins fr the task __________________ (cmplete), and we’re ready t start.
have been taught
have been cmpleted
has nt been decided
have yu been emplyed
We’ve dne a lt f wrk n it, but we ____________ _________ (finish) yet. 2. Tm ________________ (wrk) in the library every night ver the last three mnths. 3. Mre public transprt _____________ (build) in China, making it easier fr peple t travel.
has been wrking
Present perfect passive vice
4. Prgress _________ (be) s far very gd and we are sure that the wrk will be finished n time. 5. _____________ (eat) at the cafeteria befre, Tina didn’t want t eat there again. 6. N agreement ____________ (reach) yesterday after many runds f talks.
Having eaten
was reached
7. Despite the previus runds f talks, n agreement ________ _________ (reach) s far by the tw sides. 8. I ________________ (shw) arund the Water Cube fr many times since it was built. 9. __________________ (shw) arund the Water Cube, we were then taken t see the Bird’s Nest fr the 2008 Olympic Games.
have been shwn
Having been shwn
II. 用现在完成时的被动语态重组下列句子。a new hspital fr wmen and children, build, in Beijing2. mre and mre trees, cut dwn, by farmers
A new hspital fr wmen and children has been built in Beijing.
Mre and mre trees have been cut dwn by farmers.
3. abut 300 buildings and huses, destry, in the earthquake4. a lt f mney, spend, prtect the ld temple
Abut 300 buildings and huses have been destryed in the earthquake.
A lt f mney has been spent prtecting the ld temple.
三、用将下列句子改成被动语态。1. They have finished the cnstructin f the new railway lines by nw. The cnstructin f the new railway lines has been finished by them by nw.
2. We have built a new library and a gymnasium in ur schl this year. A new library and a gymnasium have been built in ur schl this year by us.
3. The car factry has prduced a great many fine cars since the technlgical revlutin.
A great many fine cars have been prduced by the car factry since the technlgical revlutin.
1. Review the text n page 28 again and underline all sentences f the present perfect and present perfect passive vice.