必修二第二单元语法：现在完成时被动语态课件.pptx
Unit 3 现在完成时被动语态,Unit 3 现在完成时被动语态,Teaching objectives:,By the end of this period, you will be able to,analyze the forms and features of the present perfect passive voice. find out the differences in meaning and function between the active and passive forms.master the functions of the present perfect passive voice in the context and use it in real situations.,Teaching objectives:By the end,What aspects in your life have been changed since the appearance of the Internet?,Lead in,Try to tell the changes according to the table using the present perfect passive voice.,foot; bike; bus; train plane; high-speed rail,paper books E-books,in cash; by credit E-payment,watch movies in the theater,Stream movies and music ; chat online,What aspects in your life have,1. Jans life has been greatly improved by the Internet.The Internet has greatly improved Jans life.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.,1. Jans life has been greatly,Active _,Passive _,The form of the present perfect passive voice,Verb form,have/has +v-ed,have/has been +v-ed,Active _Passi,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 done,is/am/are not being done,一、现在进行时被动语态is/am/are being don,1The alarming report _now. It will be finished this afternoon. A. is writing B. being written C. is being written D. has been written2Still，in the wild forests，animals _ for profit. A. are hunting B.are being hunted C. have been hunted D. have hunted 3Nowadays，fish and snakes _ for food in restaurants. A. have been killed B. have killed C. have been killing D. are being killed,C,B,D,练习检测,1The alarming report _,现在完成时与现在完成时被动语态的动词形式,找出下面句子的谓语结构，哪些是主动？哪些是被动？Jans life has been greatly improved by the Internet.The Internet has greatly improved Jans life.People have written much about the wonders of the World Wide Web.Much has been written about the wonders of the World Wide Web.,被动,主动,主动,被动,verb form,active,passive,have/has done,have/has been done,现在完成时与现在完成时被动语态的动词形式找出下面句子的谓语结,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 successfully. （3）How long has this film been shown?（4）Has his bike been repaired?现在完成时的被动语态肯定形式为:_。如句(2)。2否定形式为:_。如句(1)。3一般疑问句式为：_。如句(4)。4特殊疑问句式为：_。如句(3),主语+have / has been done,主语+have / has not been done,Have / Has主语been done,疑问词have / has+主语been done,现在完成时被动语态,一、观察例句，归纳现在完成时被动语态的构成。主语+have,二、把下面句子改错被动语态.Theyve built a kind of new PC with more functions.A kind of new PC has been built with more functions.,1They have just connected the printer to the computer.2They have put out the big fire.3Tom hasnt sold out all the magazines.,The printer has just been connected to the computer.,The big fire has been put out.,All the magazines have not been sold out.,二、把下面句子改错被动语态.1They have just,Practice,Change 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 confirmed 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?,PracticeChange the sentences i,1. 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.,三、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。,1. The problem has been discus,即学即练：This class_(teach) by Mr. Brown for two years.His Chinese_(improve) a lot since he came to China.Rowlings novels_(translate) into many foreign languages so far.,have been taught,has been improved,have been translated,即学即练：have been taught has been,（二）表某被动动作对现在造成的影响或结果，常与already, yet, just, ever, 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。Great changes _(take) place in my hometown in the past ten years.,has not been repaired,have,been introduced,have taken,（二）表某被动动作对现在造成的影响或结果，常与already,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关系；3.定谓：确定谓动形式：have/ has (not) been done。,现在完成时被动语态的解题步骤,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 changes _ (take)place in my hometown in the past ten years.5. She _ (return) this book to the library already.,has been decorated,have been advertised,have been selected,have taken,has returned,一.单句语法填空has been decoratedhave,二、单选题()1.Despite the previous rounds of talks，no agreement _so far by the two sides. Ahas been reached Bwas reached Cwill reach Dwill have reached()2.It is the most instructive lecture that I _ since I came to this school.Aattended Bhave been attendedCam attending Dhave attended()3.In the last few years thousands of films _all over the word.Ahave producedBhave been producedCare producing Dare being produced,A,D,B,二、单选题ADB,()4.Look! A new library _ in the center.Ais being builtBis builtCis buildingDbuilding()5.We wont start the work until all the preparations _.Aare being madeBwill be madeChave been madeDhad been made,A,C,()4.Look! A new library _,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 doing,了解：现在完成时和现在完成进行时的区别现在完成时：have,-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.worked B. has been workingC. had workedD. has worked,D,B,-Excuse me, which movie are yo,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,conclusion,一、含义：conclusion,
