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初中英语人教新目标 (Go for it) 版八年级下册Section A精品ppt课件
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这是一份初中英语人教新目标 (Go for it) 版八年级下册Section A精品ppt课件，共32页。PPT课件主要包含了词组 ，从句一般过去时，练一练，DISCUSS，GROUPWORK，典型例题，Homework，A paper等内容，欢迎下载使用。
Tense 时 态
一.构成1.肯定句: have / has + p.p.(过去分词)2.否定句: have/has + nt + p.p.(过去分词)3.一般疑问句: Have / Has 提到句首Yes, … have / has. N, … haven't /hasn’t.
二、用法 1、表过去发生的某一动作对现在造成的影响或结果 --Wuld yu like sme bread? --N, thanks. I have just had my breakfast. (对现在的影响：不饿) 常与副词 just, already, befre, yet, never, ever 等连用。 I have never heard f that befre. Have yu ever ridden a hrse? Have yu milked the cw yet? Yes, I have already dne that . I’ve just finished my hmewrk.
现在完成时的第一个用法对谓语动词没有要求
2、表示过去已经开始，持续到现在的动作或状态， 也可以表示实质可能继续下去的动作或状态。通常和 fr（一段时间）, since（时间点） 引导的时间状语 连用。此外还可以与 s far, in the last /past ten years, ver the years, ever since then等连用。 I have been here fr abut 5 years. He has wrked here since 1989.
She has learnt 2000 English wrds s far. The by hasn't studied in the last tw years. M Yan has written many nvels ver the years.
fr和since的运用 fr＋时间段 since＋时间点
I have been here fr 18 years. I have been here since 2000. I have been here since 5 years ag. I have been here since I graduated in 2000.
练一练：用fr和since填空。
______three hurs______three ’clck______tw days______yesterday afternn______I came here______last Sunday
_______a week_______a lng time_______1997 ______tw weeks_______three years ag _______ last mnth
I have been here fr 8 years.
He has wrked in the factry since 2 mnths ag.
fr＋时间段 since＋时间点划线提问Hw
Hw lng have yu been here?
Hw lng has he wrked in the factry?
现在完成时第二个用法要求谓语动词必须是 延 续 性 动词
cme/g — be (in) leave — be away (frm)brrw — keep buy — havedie — be dead get t knw — knw begin — be n g ut — be ffg ut — be ff arrive – be here/there marry/get married — be married catch a cld — have a cldfall asleep/get t sleep — be asleeppen — be pen clse — be clsed
短暂性动词与延续性动词的转换
Rewrite the sentences using fr r since.
1. Jim is in Japan. He arrived there three days ag.2. They are very hungry. Their last meal was ten hurs ag.3. I have a camera. I bught it in 2009.
They have nt eaten fr ten hurs.
I have had a camera since 2009.
Jim has been in Japan fr three days.
4. I knw Ann. I first met her three years ag.5. Linda is ill. She became ill n Mnday.
I have knwn Anna fr three years.
Linda has been ill since Mnday.
Fill in the blanks with the crrect frms f the verbs in brackets.
1. I ____________ (never be) t the water park befre. I want t _______(g) next mnth befre the weather gets t cld.2. They _____________ (never wn) any pets, but they ______________ (always want) t have a dg.
have never been
have never wned
have always wanted
3. We ________ (have) a pian since last Nvember. We ________ (buy) it frm the Li family when they mved t the US last year.4. Cathy and Amy ________________ (nt be) back t their hmetwn fr tw years. They _____ (miss) their hmetwn a lt and hpe t visit the place next year.
have nt been/haven’t been
5. This museum ________ (be) here fr ver 20 years. It _______ (be) ne f the ldest buildings in this small twn.
他的爷爷已经去世2年了。 2.Nick 来这里3天了.3.他离开深圳好长时间了。
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 2 years since his grandpa died.
Tw years has passed since his grandpa died.
I t is 3 days since Nick came here.
Three days has passed since Nick came here.
It is a lng time since he left Shen Zhen.
A lng time has passed since he left Shen Zhen.
●但在否定句中，短暂性动词可以与时间段连用。如：I haven’t bught the bike fr a year. 我买这辆自行车还不到一年。She hasn’t cme here fr an hur. 她来这儿还没有一个小时。
have /has been (in), have/has been (t) , have /has gne (t) (1)、have /has been (in) 表示“在某地（多长时间）”，现在仍在那里。常与表示一段时间的状语连用。Yu have been in Zhngdu Middle Schl fr 2 years. (2)、 have/has been (t)表示“曾经去过某地”，现在已经不在那里了可 与just, ever, never等连用。例如：Mary has never been t the Great Wall. have (has) been t 后面可接次数，表示去过某地几次。They have been t Lngyan several times. (3)、have /has gne (t) 意为“到某地去了” ,说话时该人不在现场。 ---Where is Tm? ----He has gne t the bkshp.
Tm has gne _____hme.His fathter has been_____ there twice.Yu have been _____here fr 15 years.
Pay attentin!!!
1.都表示过去发生的事。2.现在完成时强调过去和现在的联系，不能和具体的时间状语连用。3.一般过去时强调过去发生的事或状态与表示过去的具体时间连用（last, ag, yesterday, etc. ）牢记: when 不与现在完成时连用。
现在完成时与一般过去时的用法比较
Have yu finished reading the nvel yet?Yes,I .
Have yu finished reading the nvel yet?Yes.I it yesterday.
He _______ his hmetwn fr twenty years. He really misses it!A. has been away frm B. left C. has left D. is away frm
( ) I ______ Mr. Smith since he mved t Shanghai. A. didn’t hear frm B. dn’t hear frm C. wn’t hear frm D. haven’t heard frm
( ) Nt nly Jam but als his parents _______ a few interesting places since they came t China. A. will visit B. has visited C. have visited D. visited
( ) I _______ many new friends since I came here. A. make B. made C. will make D. have made
( ) My aunt is a writer. She _____ mre than ten bks since 1980. A. writes B. wrte C. has written D. will write
( ) William Shakespeare ______ fr 400 years, but his wrks still have great influence tday. （2016·山东青岛） A. died B. was dying C. has died D. has been dead
( ) ---What a nice watch! Hw lng _____ yu ____it? ---Fr just tw weeks.（2016·天津） A. will , buy B. have, had C. were, having D. did, buy
( ) 【2017湖北咸宁】—D yu knw Diayu Island? —Sure. It ______ China since ancient times. A. belngs t B. belnged t C. has belnged t D. is belnging t
( ) 【2017北京】He _____ in this factry fr 20 years already. A. will wrk B. wrks C. has wrked D. is wrking
( ) My sister has learnt English _____. (2018四川雅安) A. fr twelve years ag B. since she was fur C. twelve years ag D. at the age f fur
( ) She _______ the bk _______ tw days ag. (2017黑龙江绥化) A. has brrwed; since B. has kept; since C. kept; fr
Tense 时 态
一.构成1.肯定句: have / has + p.p.(过去分词)2.否定句: have/has + nt + p.p.(过去分词)3.一般疑问句: Have / Has 提到句首Yes, … have / has. N, … haven't /hasn’t.
二、用法 1、表过去发生的某一动作对现在造成的影响或结果 --Wuld yu like sme bread? --N, thanks. I have just had my breakfast. (对现在的影响：不饿) 常与副词 just, already, befre, yet, never, ever 等连用。 I have never heard f that befre. Have yu ever ridden a hrse? Have yu milked the cw yet? Yes, I have already dne that . I’ve just finished my hmewrk.
现在完成时的第一个用法对谓语动词没有要求
2、表示过去已经开始，持续到现在的动作或状态， 也可以表示实质可能继续下去的动作或状态。通常和 fr（一段时间）, since（时间点） 引导的时间状语 连用。此外还可以与 s far, in the last /past ten years, ver the years, ever since then等连用。 I have been here fr abut 5 years. He has wrked here since 1989.
She has learnt 2000 English wrds s far. The by hasn't studied in the last tw years. M Yan has written many nvels ver the years.
fr和since的运用 fr＋时间段 since＋时间点
I have been here fr 18 years. I have been here since 2000. I have been here since 5 years ag. I have been here since I graduated in 2000.
练一练：用fr和since填空。
______three hurs______three ’clck______tw days______yesterday afternn______I came here______last Sunday
_______a week_______a lng time_______1997 ______tw weeks_______three years ag _______ last mnth
I have been here fr 8 years.
He has wrked in the factry since 2 mnths ag.
fr＋时间段 since＋时间点划线提问Hw
Hw lng have yu been here?
Hw lng has he wrked in the factry?
现在完成时第二个用法要求谓语动词必须是 延 续 性 动词
cme/g — be (in) leave — be away (frm)brrw — keep buy — havedie — be dead get t knw — knw begin — be n g ut — be ffg ut — be ff arrive – be here/there marry/get married — be married catch a cld — have a cldfall asleep/get t sleep — be asleeppen — be pen clse — be clsed
短暂性动词与延续性动词的转换
Rewrite the sentences using fr r since.
1. Jim is in Japan. He arrived there three days ag.2. They are very hungry. Their last meal was ten hurs ag.3. I have a camera. I bught it in 2009.
They have nt eaten fr ten hurs.
I have had a camera since 2009.
Jim has been in Japan fr three days.
4. I knw Ann. I first met her three years ag.5. Linda is ill. She became ill n Mnday.
I have knwn Anna fr three years.
Linda has been ill since Mnday.
Fill in the blanks with the crrect frms f the verbs in brackets.
1. I ____________ (never be) t the water park befre. I want t _______(g) next mnth befre the weather gets t cld.2. They _____________ (never wn) any pets, but they ______________ (always want) t have a dg.
have never been
have never wned
have always wanted
3. We ________ (have) a pian since last Nvember. We ________ (buy) it frm the Li family when they mved t the US last year.4. Cathy and Amy ________________ (nt be) back t their hmetwn fr tw years. They _____ (miss) their hmetwn a lt and hpe t visit the place next year.
have nt been/haven’t been
5. This museum ________ (be) here fr ver 20 years. It _______ (be) ne f the ldest buildings in this small twn.
他的爷爷已经去世2年了。 2.Nick 来这里3天了.3.他离开深圳好长时间了。
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 2 years since his grandpa died.
Tw years has passed since his grandpa died.
I t is 3 days since Nick came here.
Three days has passed since Nick came here.
It is a lng time since he left Shen Zhen.
A lng time has passed since he left Shen Zhen.
●但在否定句中，短暂性动词可以与时间段连用。如：I haven’t bught the bike fr a year. 我买这辆自行车还不到一年。She hasn’t cme here fr an hur. 她来这儿还没有一个小时。
have /has been (in), have/has been (t) , have /has gne (t) (1)、have /has been (in) 表示“在某地（多长时间）”，现在仍在那里。常与表示一段时间的状语连用。Yu have been in Zhngdu Middle Schl fr 2 years. (2)、 have/has been (t)表示“曾经去过某地”，现在已经不在那里了可 与just, ever, never等连用。例如：Mary has never been t the Great Wall. have (has) been t 后面可接次数，表示去过某地几次。They have been t Lngyan several times. (3)、have /has gne (t) 意为“到某地去了” ,说话时该人不在现场。 ---Where is Tm? ----He has gne t the bkshp.
Tm has gne _____hme.His fathter has been_____ there twice.Yu have been _____here fr 15 years.
Pay attentin!!!
1.都表示过去发生的事。2.现在完成时强调过去和现在的联系，不能和具体的时间状语连用。3.一般过去时强调过去发生的事或状态与表示过去的具体时间连用（last, ag, yesterday, etc. ）牢记: when 不与现在完成时连用。
现在完成时与一般过去时的用法比较
Have yu finished reading the nvel yet?Yes,I .
Have yu finished reading the nvel yet?Yes.I it yesterday.
He _______ his hmetwn fr twenty years. He really misses it!A. has been away frm B. left C. has left D. is away frm
( ) I ______ Mr. Smith since he mved t Shanghai. A. didn’t hear frm B. dn’t hear frm C. wn’t hear frm D. haven’t heard frm
( ) Nt nly Jam but als his parents _______ a few interesting places since they came t China. A. will visit B. has visited C. have visited D. visited
( ) I _______ many new friends since I came here. A. make B. made C. will make D. have made
( ) My aunt is a writer. She _____ mre than ten bks since 1980. A. writes B. wrte C. has written D. will write
( ) William Shakespeare ______ fr 400 years, but his wrks still have great influence tday. （2016·山东青岛） A. died B. was dying C. has died D. has been dead
( ) ---What a nice watch! Hw lng _____ yu ____it? ---Fr just tw weeks.（2016·天津） A. will , buy B. have, had C. were, having D. did, buy
( ) 【2017湖北咸宁】—D yu knw Diayu Island? —Sure. It ______ China since ancient times. A. belngs t B. belnged t C. has belnged t D. is belnging t
( ) 【2017北京】He _____ in this factry fr 20 years already. A. will wrk B. wrks C. has wrked D. is wrking
( ) My sister has learnt English _____. (2018四川雅安) A. fr twelve years ag B. since she was fur C. twelve years ag D. at the age f fur
( ) She _______ the bk _______ tw days ag. (2017黑龙江绥化) A. has brrwed; since B. has kept; since C. kept; fr
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