2022年中考英语现在完成时课件

这是一份2022年中考英语现在完成时课件，共27页。PPT课件主要包含了现在完成时的定义，现在完成时，现在完成时的结构，现在完成时的形式，现在完成时的用法，现在完成时的标志词，since + ，for+一段时间，一个过去的时间点，一段时间+ago等内容，欢迎下载使用。

定义：过去的动作或状态持续到现在，对现在造成的影响，或可能持续持续下去。
这么多雪已经融化了。S much snw has already melted away.
主语 + 助动词have/has + 过去分词
我已经爱上这个地方。
I have fallen in lve with this place。
主语是第三人称单数或不可数名词时，助动词用has
肯定回答：Yes, 主语+have/has.否定回答：N, 主语+haven’t/hasn’t.
写出下列句子的否定式，一般疑问句，和画线部分提问。
Tm has already gne t Beijing.
1.表示动作发生在过去，持续到现在，并有可能继续下去。
I have been here fr tw years. 我已经在这儿待两年了。He has taught English since five years ag.他五年前就开始教英语了。
2. 表示动作发生在过去，对现在造成影响。
-Hw d yu like the film?-Srry. I haven’t seen the film. (我不知道这电影讲什么）。
现在完成时常与不确定的时间状语连用，如：already、yet、never、ever、just、recently、befre、s far、until nw、次数等
与表示一段时间的状语连用： fr+一段时间 since+一个过去的时间点 since+一段时间+ag since+一般过去时句子 in the past+一段时间
1. already 与 yet already通常用于肯定句，位于句中或句末；位于句中时，在助动词之后。 She has already finished her hmewrk. yet通常用于否定句或疑问句，一般位于句末。 He hasn’t gne t Beijing yet.
按要求改写句子。My classmates have already planted a lt f trees. (改为否定句）My classmates _________ __________ a lt f trees _________.
haven’t planted
2. fr 与 since
选fr或since填空。Linda has practised playing the pian __________ ten years.They have been away frm this twn __________ a lng time.We have been here ________ ten years ag.I have learnt English ______ I came t this schl.
注意：对“fr+时间段”或“since+过去的时间点/一般过去时句子” 提问时，用特殊疑问词hw lng“多长时间”。
3. never(从不） 与 ever （曾经）
never用于句中，助动词之后，实义动词前，表示否定意义。 ever用于肯定句和疑问句中，在句中位于助动词之后，实义动词前。
Have yu ever been t America? 你曾经去过美国吗？I have never been there befre. 我以前从没去过。
have been t/have gne t/have been in区别
完成下列句子。She ________________ America three times.Mr Black isn’t here nw. He ________________ Beijing n a business tur.We ________________ this small village fr tw mnths.
have been in
现在完成时与一般过去时的辨析
一般过去时只表示动作发生在过去，不说明现在的情况，强调动作。常用时间标志词：just nw、ag、in the past、yesterday；the day befre yester、last week/night/mnth…、in 1998/…、at the age f…等。现在完成时为过去发生的，强调过去的事情对现在的影响，强调影响。
in the past
in the past+一段时间
1. The debate n whether t keep pets ____ frty minutes yesterday afternn. (2018上海)A. lastB. lastedC. will lastD. has lasted2. They ____ in Beijing fr tw weeks. D yu knw when ____ they g there?A. have been; dB. have gne; didC. have been; didD. have gne; d
延续性动词与短暂性动词
短暂性动词（如cme，leave，g等）表示行为结果，不与时间段连用；与时间段连用时，需转换为表示状态的延续性动词。
He left three hurs ag.他三个小时前离开了。 （表示结果）He has been away fr three hurs.他已经离开三个小时了。（表示状态）
I brrwed this bk tw weeks ag. 这本书我两个星期前借的。I have kept this bk fr tw weeks. 这本书我已经借两个星期了。
常用的短暂性动词对应的可转换为延续性动词：becme—be begin—havebrrw—keepbuy—havecme(g, arriver, get)—be here/there/in.. die—be deadfinish—be ver leave—be away (frm)…jin—be in…(be a member f…)
练一练：1. The little by jined the party tw years ag. (同义句转换)The little by ________ ________ ________ the party fr tw years.2. His father has been dead since he was five. (同义句转换)His father ________ five years ________.3. I bught the bike five years ag. (同义句转换） I ________ ________ the bike since five years ag.
has been in
注意：但在否定句中，短暂性动词可以与时间段连用。如:l haven‘t bught this car fr a year. 我买这辆小汽车还不到一年。She hasn‘t cme here fr tw minutes. 她来这儿还没有两分钟。
“It is+一段时间+since+句子（一般过去时）” = “一段时间+has passed + since+句子（一般过去时）”
It is three years since I came here. 我来这里已经三年了。Three years has passed since I came here.自从我来到这里已经三年了。
1. Bth his parents lk sad. Maybe they ____ what's happened t him.A. knewB. have knwnC. must knwD. will knw2. Mr. Smith has ____ been t Lndn, has he?A. alreadyB. neverC. everD. still
3. Zha Lin ____ already ____ in this schl fr tw yearsA. was; studyingB. will; studyC. has; studiedD. are; studying4. Frrest Gump is a very nice film. I ____ it twice.A. will seeB. have seenC. sawD. see
5. -These farmers have been t the United States.-Really? When ____ there?A. will they gB. did they gC. d they g D. have they gne6. His father ____ the Party since 1978.A. jinedB. has jinedC. was inD. has been in
7. Miss Green isn't in the ffice. She ____ t the library.A. has gneB. wentC. will gD. has been8. -____ yu ____ yur hmewrk yet?- Yes. I ____ it a mment ag. A. Did; d; finishedB. Have; dne; finishedC. Have; dne; have finishedD. will; d; finish
9. -Hw lng have yu ____ here?-Abut tw mnths.A. beenB. gneC. cmeD. arrived10. Hurry up! The play ____ fr ten minutes.A. has begunB. had begunC. has been nD. Began
11. It ____ ten years since he left the army.A. isB. hasC. willD. was12. The students have cleaned the classrm, ____?A. s theyB. dn't theyC. have theyD. haven't they
按要求完成句子，每空一词。1. I have been t New Yrk befre. (改为否定句)I ________ ________ been t Macau befre.2. He hasn't cme here because he was ill. (就划线部分提问)________ ________ he cme here?3. I bught a new cmputer just nw. (用just 改写)I ________ just ________ a new cmputer.4. We began t learn English five years ag. (改为同义句)We ________ ________English ________ five years.
haven’t ever
have bught
have learnt fr