外研版九年级上册现在完成时态专项复习课件(19张)
展开have/has+过去分词(dne)
二、现在完成时各种句式构成: have /has+ v 过去分词(及物动词)
haven’thasn’t
Have yu……?Has he……?
答语 Yes, 主语+have/has. N, 主语+haven’t/hasn’t
反意疑问句句 :… hasn’’t..?
(一)规则变化:1.+ed wrk, plant,call2.e+d live, change, like, lve, agree, save,
3.以重读闭音节结尾,末尾只有一个辅音字母的 双写+ed. 如:plan, stp, drp, fit(适合), prefer(更喜欢), travel4.以辅音字母+y结尾的,变y为i+ed try, study, carry, hurry, cry, wrry,cpy
(二)不规则动词:原形-过去式-过去分词形式
1) AAA型(三种都一样) cst -cst -cst cut- cut -cut hurt -hurt -hurt 2)ABB型(过去式与过去分词相同) bring-brught-brught catch- caught -caught lead -led -led3) ABC型(三种都不一样) begin-began-begun grw- grew- grwn
4)ABA型(原形与过去分词相同) cme-came-cme becme -became -becme run -ran- run 5)AAB型(原形与过去式相同) beat-beat-beaten
1.过去发生的动作对现在造成的影响或结果。
2.过去已经开始,持续到现在的动作或状态。
d my hmewrk
I have dne my hmewrk.
my hmewrk have finished
mved herein 2000
I still live here
I have lived here fr 11years.
I have lived here since 2000/11 years ag.
现在完成时时态用法一: 1.现在完成时用来表示过去发生或已完成的动作或状态对现在造成的影响或结果,也就是说,动作或状态发生在过去但它的影响现在还存在。 I lst my wallet yesterday. I have lst my wallet. (含义是:现在我没有钱花了.) Jane had breakfast ten minutes ag. Jane has just had breakfast. (含义是:简现在不饿了.) He pened the dr just nw . He has pened the dr. (含义是:现在门是开着的)
2.常用标志词: already(肯定句) yet(否定句和疑问句 句末)never(否定句)ever just befre(句末)s far, these days,
1.She has nt seen this film . She has seen this film.2.I have cmbed my hair. Have yu cmbed yur hair has watched a vide. He has nt watched a vide .
already ---------- yet 已经 用于肯定句 用于否定句,疑问句
3.对点练习:1. I ________ (d) my hmewrk already.2. He _____________(nt finished) his hmewrk yet.3. _______yu ever ______ (be) t Haiwaii?4. We ______ never ______ (see) such an exciting match _____ just _______(clean) the huse. Please dn’t cme _________________(practice) this dialgue twice.
has nt finished
have practiced
1. have been t +地名, “曾经去过某地”, 人已回来 They have been t Beijing twice. 2. have gne t +地点, “去了某地”, 人未回来 They have gne t Beijing. 3. have been in +地点, “在某地待了多久”,可以和时间段连用 They have been in Beijing fr 10 years.
4.【特殊句型要牢记】
用have /has been t和have / has gne t have been in 填空
1.Lucy has been t the Great Wall twice. 2.— What abut yur sister,Lily? — Oh,she Chengdu, she will cme back next Blacks have been in China fr tw years.
has gne t
现在完成时时态用法二: 过去发生的动作持续到现在有可能还要继续持续,常常和since或fr构成的时间状语连用。
since+时间点/从句(一般过去时态) fr+一段时间
e.g.I have learned English fr ne year./since last year/since I was a child .
用 fr和 since填空:___fr__a week _fr__a lng time__since__1997 since tw weeks ag___fr_three years __since last mnth
I haven’t seen him __A___ 1992. A. since B. fr C. ag D. befre2. My uncle has wrked in this hspital __A___. A. fr ten years B.ten years ag C.since ten years3. Miss Ga isn’t here. She __B_ t the statin t meet Mr Brwn. A.went B. has gne C. wuld g D. has been4. Lucy and Lily can speak gd Chinese, because they A_ China fr six years. A.have been in B. have been t C. have cme t D.have gne t5. ---I have finished my hmewrk? ---when _C_ yu _____ it? A. have; finished B.d; finish C.did; finish D.will; finish
【温馨提示】: 英语中的动词分为延续性和非延续性两种, 在现在完成时中, 有时要将这类非延续性动词转换为延续性动词, 这样才能和时间段(fr 和since)连用。转换方法有: 1. 将短暂性动词转化为“be + 名词/形容词或副词/介词短语”, 这样才能和时间段连用。请看下表:
例如: 这个老人去世10年了。( × )The ld man has died fr 10 years. ( √ )The ld man has been dead fr 10 years.
2.有的短暂性动词可以转化为意思相同的延续性动词。请看下表:
例如: 这本书我借了一个月了。( × ) I have brrwed that bk fr ne mnth. ( √ ) I have kept that bk fr ne mnth.
Summarise:1.现在完成时态的结构和各种句式变化。2.现在完成时态的两种用法。3.短暂动词转换为延续性的常见方式。
It’s +一段时间+since…(或It has been +一段时间+since…)1. It’s ver twenty years since we last met. 2. Hw lng is it since we visited yur mther? 自从我们看望你母亲以来到现在有多长时间了?
现在完成时与一般过去时比较
他有一个男朋友,已经分手(过去)。 只有“前世孽缘”,没有“今生”
他有一个男朋友,一直纠缠他(现完)
1) 一般过去时表示过去某时发生的动作或单纯叙述过去的事情,强调动作; 现在完成时为过去发生的,强调过去的事情对现在的影响,强调的是影响。I saw this film yesterday. 我昨天看了这部电影。(强调看的动作发生过了。)I have seen this film. 我看过这部电影了。(强调对现在的影响,电影的内容已经知道了。)
) 一般过去时常与具体的表示过去的时间状语连用;现在完成时通常与模糊的时间状语连用,或无时间状语。一般过去时的时间状语: yesterday; last week;…ag; in1990; in Octber; just nw …现在完成时的时间状语: already; ever; fr; just; never; since; yet;s far; till/until; up t nw;in the past few years; recently…
如果询问或介绍某事所发生的具体时间. 地点,只能用一-般过去时。【例】 --- When did yu lse yur key? 你什么时候弄丢了你的钥匙?--- I lst it this mrning. 我今天早上弄丢了它。
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