1、Discovering Useful Structuresn By the end of this period,you will be able to1.analyze the forms and features of the present perfect passive voice.2.find out the differences in meaning and function between the active and passive forms.3.master the functions of the present perfect passive voice in the
2、 context and use it in real situations.What aspects in your life have been changed since the appearance of the Internet?Lead in BeforeAfterTransport Reading Payment Entertainment Try to tell the changes according to the table using the present perfect passive voice.foot;bike;bus;train plane;high-spe
3、ed railpaper books E-books in cash;by credit E-payment watch movies in the theaterStream movies and music;chat online一、现在进行时被动语态（一）构成 1.肯定形式 2.否定形式（二）用法1.表示说话时正在进行的被动动作；2.表示现阶段正在进行的被动动作；3.表示一种经常性的被动行为，带有感情色彩。is/am/are being doneis/am/are not being done1.The Present Perfect tense(现在完成时)present(now)fu
4、turepast Present Perfect Tense 现在完成时现在完成时(1)主语主语+have/has+V-过去分词过去分词(done)助动词助动词,无意义无意义 一：现在完成时的结构一：现在完成时的结构Winter has already come(came,come)，will it still be far in spring?注：主语若是注：主语若是第三人称单数第三人称单数助动词用助动词用 hasActive _Passive _The form of the present perfect passive voiceVerb formhave/has+v-ed have/
5、has been+v-edYou _have_ planted all the trees.I _have_ planted all the trees.He/she _has_ planted all the trees.They _have_ planted all the trees.练习：区别练习：区别have 和和 has的用法的用法 主语若是第三人称单数助动词用主语若是第三人称单数助动词用 has1.Jans life has been greatly improved by the Internet.The Internet has greatly improved Jans l
6、ife.2.Much has been written about the wonders of the World Wide Web.People have written much about the wonders of the World Wide Web.Observe and analyze Underline and compare the different verb forms.一、观察例句，归纳现在完成时被动语态的构成。（1）Toms novel has not been published.（2）The experiment has been done successfu
7、lly.（3）How long has this film been shown?（4）Has his bike been repaired?现在完成时的被动语态现在完成时的被动语态1.肯定形式为肯定形式为:_。如句。如句(2)。2否定形式为否定形式为:_。如句。如句(1)。3一般疑问句式为：一般疑问句式为：_。如句。如句(4)。4特殊疑问句式为：特殊疑问句式为：_。如句。如句(3)主语主语+have/has been done主语主语+have/has not been doneHave/Has主语主语been done疑问词疑问词have/has+主语主语been done现在完成时被动语
8、态PracticeChange the sentences into the present perfect passive voice.ExampleThey have built a kind of new PC with more functions.A kind of new PC has been built with more functions.1.I have downloaded the software to help my phone battery last longer.2.Someone has lost an identity card.3.Have you co
9、nfirmed the Wi-Fi password?4.Have you pressed the button yet to copy the file?5.Has anyone made a comment about the online database?1.I have downloaded the software to help my phone battery last longer.2.Someone has lost an identity card.3.Have you confirmed the Wi-Fi password?4.Have you pressed the
10、 button yet to copy the file?5.Has anyone made a comment about the online database?The software has been downloaded to help my phone battery last longer.An identity card has been lost.Has the Wi-Fi password been confirmed?Has the button been pressed yet to copy the file?Has a/any comment been made a
11、bout the online database?What are the differences in meaning and function between the active and passive forms?The object in an active sentence becomes the subject in a passive sentence.Both sentence types convey a similar meaning,but they are slightly different.Active sentences are used often,as th
12、ey are more direct.Passive sentences are often used when the doer of an action is unknown,not important,or preferred not named.We use it when something has been done by someone at sometime up to now.We are not interested in the actor(行动者).Subject and its verb should be in a agreement.the present per
13、fect passive voiceComplete the notice with the correct forms of the verbs in brackets.(Workbook P75 Activity 4)Notice to parentsDear Parents,We hope you will welcome this news.Almost 100 computers _(give)to us by a local computer company since the end of last year.A decision _(make)to begin a comput
14、er teaching experiment at our school.Our plan _(support)with technical equipment and advice which _(provide)by the City Information Technology Center.Every teacher _(provide)with a laptop since the beginning of this term.More importantly,most of our courses _(teach)using computers.We _(help)in our t
15、eaching by a lot of information from the Internet.Also,a new computer room _(set up)in our school.We hope you will be happy with this exciting new development in our school.No.8 Senior High Schoolhas been madehas been givenhas been supportedhas been providedhas been providedhave been taughthave been
16、 helpedhas been set up1.The problem has been discussed for 2 days.2.Many new buildings have been built in the past few years.3.Two novels have been written by him so far.4.The computer has been used every day since I bought it.5.The dirty clothes have already been cleaned.现在完成时被动语态用法（一）找出表示时间状语的词语并总
17、结用法。表示一个被动的动作或状态从过去开始一直持续到现在，常连用的时间状语有：for+段时间，since+时间状语(从句)，these days,so far,up to now,in the last/past few years等,总结如下.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so far 迄今为止 for a long time 很长一段时间by now 到现在为止 in recent years 在最近几年里in/du
18、ring/over the past/last years在过去的几年里即学即练：1.This class_(teach)by Mr.Brown for two years.2.His Chinese_(improve)a lot since he came to China.3.Rowlings novels_(translate)into many foreign languages so far.have been taught has been improvedhave been translated（二）表某被动动作对现在造成的影响或结果，常与already,yet,just,eve
19、r,never,recently等连用。即学即练：The bike_(not repair)yet.I _ already_(introduce)to Mr.Smith.注意：有些动词没有被动语态,如不及物动词happen,take place,break out等。1.Great changes _(take)place in my hometown in the past ten years.has not been repaired havebeen introduced have taken现在完成时被动语态的解题步骤1.找时：找与现在完成相对应的时间状语；2.圈主：主语与动词构成被动
20、关系；3.定谓：确定谓动形式：have/has(not)been done。一.单句语法填空 1Their new house _(decorate)for two months and they will settle in it in the near future.2Their new cars _(advertise)on the Internet for a long time.3All the athletes _(select)from millions of people all over the country in the past two months.4Great ch
21、anges _(take)place in my hometown in the past ten years.5.She _(return)this book to the library already.has been decoratedhave been advertisedhave been selected have takenhas returned 二、单选题()1.Despite the previous rounds of talks，no agreement _so far by the two sides.Ahas been reached Bwas reached C
22、will reach Dwill have reached()2.It is the most instructive lecture that I _ since I came to this school.Aattended Bhave been attended Cam attending Dhave attended()3.In the last few years thousands of films _all over the word.Ahave producedBhave been produced Care producing Dare being producedADB()
23、4.Look!A new library _ in the center.Ais being builtBis built Cis building Dbuilding()5.We wont start the work until all the preparations _.Aare being made Bwill be made Chave been made Dhad been madeAC了解：现在完成时和现在完成进行时的区别现在完成时：事情发生在过去,并一直持续到现在。或过去发生的动作对现在有一定影响。句式结构:主语+have/has+done现在完成进行时：表示从过去开始一直持
24、续到现在的动作,强调这个动作可能会继续下去.句式结构:have/has been doing1.-Excuse me,which movie are you waiting for?-The new Star Wars,We _ here for more than two hours.A.waited B.wait C.would be waiting D.have been waiting2.Marty _ really hard on his book and he thinks hell have finished it by Friday.A.worked B.has been workingC.had workedD.has workedDB一、含义：1、表示动作发生在过去,到现在已经完成或对现在产生的影响。2、动词和被修饰主语构成被动关系。二、构成：肯定式：have/has been done否定式：have/has not been done一般疑问句：Have/Has+主语+been done?特殊疑问句：疑问词+have/has+主语+been done?三、解题步骤1.找时 2.圈主 3.定谓Finish the Activities 2、3、5 in Using Structure of Workbook on page 74-75.
