人教版 (2019)必修 第二册Unit 3 The internet试讲课课件ppt

这是一份人教版 (2019)必修 第二册Unit 3 The internet试讲课课件ppt，文件包含Unit3TheInternetPeriod4DiscoveringUsefulStructures精讲课件-2023-2024学年高一英语上学期同步精品课堂人教版2019必修第二册pptx、Unit3TheInternetPeriod4DiscoveringUsefulStructures分层练习docx等2份课件配套教学资源，其中PPT共17页， 欢迎下载使用。

Teaching bjectives
1. Identify and summarize the frm and the functins f the present perfect passive vice;2. Cmpare the present perfect passive vice with the active, and change the active frm int the passive frm;3. Apply the present perfect passive vice int use;
Read the pairs f sentences. Underline and cmpare the different verb frms.
Jan's life has been greatly imprved by the Internet. The Internet has greatly imprved Jan's life.
Much has been written abut the wnders f the Wrld Wide Web. Peple have written much abut the wnders f the Wrld Wide Web.
passive vice
The Present Perfect Passive Vice
Hw d we frm the present perfect passive vice?
Active have\has +v-ed
Passive _________________
have\has been +v-ed
1. 被动语态现在完成时形式A. 陈述句： 主语+ have/has (nt) +been+dneB. 疑问句： (疑问词)+ have/has +主语+been+ dne?
2. 被动语态现在完成时的用法(1) 表示某一被动动作发生在过去(现在说话前)，但与现在的情况有联系。常与下列时间状语连用：just, already, yet, befre, recently, lately, s far等。The dr has been lcked. 门已经被锁上了。（现在说话时门是锁着的）Cmpare: The dr was lcked. 门当时是锁着的/被锁上了。 （与现在说话时门的状态无关，可能锁上或重新打开了）。
(2) 表示某一延续性的被动动作或状态从过去某时一直延续到现在说话时，并有可能继续下去。与since, fr , all day, in/fr/ver/ during the past/last few years 等表示的时间状语连用。E.g. The bank has been clsed since July/fr several weeks. 自从七月以来银行一直关门/已经关门好几个星期了。E.g. The child has been taken care f by Grandma Wang all these years. 这多些年来这孩子一直又王奶奶照看。
(3) 用在时间和条件状语从句中, 表示将来某时已完成的动作。如：E.g. We’ll start ut as sn as the wrk has been finished. 工作一完成我们将出发。 注意：下来情况下用被动语态：1.强调动作的承受者，即动作的承受者是谈话的中心。2.不知道或不必要或为了委婉 /礼貌, 不便说出动作的发出者。3.当动作的执行者带有较长的定语。
Tips: 常与现在完成时连用的时间状语(是否都用完成时)already 已经　　　　　yet 已经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fr+时间段
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 ……since+时间点ever since 自那以来 s far 迄今为止 fr +时间段 by nw/ up t nw/ until 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It is the first time that……
Change the sentences int the present perfect passive vice.
EXAMPLEThey've built a kind f new PC with mre functins.A kind f new PC has been built with mre functins.
1.I have dwnladed the sftware t help my phne battery
The sftwa re has been dwnladed t help my phne battery last lnger.
———————————————————————— ———
2. Smene has lst an identity card.————————————————————————————3. Have yu cnfirmed the Wi-Fi passwrd?————————————————————————————
An identity card has been lst.
Has the Wi-Fi passwrd been cnfirmed?
4. Have yu pressed the buttn yet t cpy the file?————————————————————————————5. Has anyne made a cmment abut the nline database?————————————————————————————
Has the buttn been pressed yet t cpy the file?
Has a/any cmment been made abut the nline database?
表示过去发生的被动动作现在已经完 成或仍将持续, 强调对现在的影响
have/has been dne
have/has nt been dne
Have/Has+主语+been dne?
特殊疑问词+have/has+主语+been dne?
表示已经完成的被动动作
表示开始于过去并可能持续下去的被动动作
在时间状从,条件状从中,表示还未发生的被动动作
区分have/has been dne/ be being dne/ be dne
不及物动词或词组无被动
am / is / are dne
am / is / are being dne
was / were dne
shall / will be dne
was / were being dne
had been dne
shall / will have been dne
has / have been dne
The basic cmpsitin f passive vice
Read the pem. Then think f yur wn situatin and write a similar pem.
Lk at the way yur face has been washedLk at the way yur teeth have been brushedLk at the way yur shes have been cleanedYu'd better d them again.Lk at the way the flwers have been plantedLk at the way the grass has been cutLk at the way the paths have been sweptI hpe that yu'll cme here again.
Review what we’ve learned tday.