译林版小升初小学英语语法：现在完成时课件

这是一份译林版小升初小学英语语法：现在完成时课件，共17页。PPT课件主要包含了语法透析，语法透视，考点大观，易错辨析，通关训练，现在完成时定义，现在完成时结构，现在完成时的用法，窗户现在是坏的，我现在没有钥匙等内容，欢迎下载使用。
考点大观易错辨析通关训练
现在完成时定义三要素：1. 表示到现在为止已经完成或刚刚完成的动作。2.一件发生在过去的事情对现在产生影响。3.一个动作开始于过去，并持续到现在（也许还将持续下去）。We have knwn each ther since 2005. 我们从2005年认识的。I have lived in Wuhan fr several years.我在武汉住了好几年了。
肯定句：主语 + have/ has + 过去分词+...
否定句:主语+haven’t ( have nt) +过去分词… 主语+hasn’t ( has nt ) +过去分词...
疑问句:Have / Has+主语+过去分词
I haven’t finished my hmewrk. 我还没有完成作业。
Have yu finished yur hmewrk? 你完成作业了没？
I have finished my hmewrk. 我已经完成作业了。
1) 表示到现在为止已经完成或刚刚完成的动作。Nw we have planted all the trees.截止目前，我们种完了所有的树。He has just cme back. 他已经回来了。They have built many buildings in this city. 他们在这个城市建成了好多建筑物。
2) 表示过去发生的动作,强调结果或对现在的影响。Smene has brken the windw. I have already lst the key. I haven’t read that bk yet . I have just cleaned my hands.
3) 表示从过去开始并持续到现在的动作或状态。 She has learned English fr 5 years. 她学英语已经五年了。He has lived in Beijing since he was brn .从他出生那天起就住在北京。Has he lived in Shenzhen fr 4 years? 他住在深圳四年了吗？
过去分词的变化（规则）
(1)一般动词，在词尾直接加“ ed ”。 wrk---wrked---wrked (2)以“ e ”结尾的动词，只在词尾加“ d ”。 　 live---lived---lived (3)以“辅音字母 + y ”结尾的动词，将 “y” 变为 “i”，再加“ ed ”。 study---studied---studied (4)重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加“ ed ”。 drp---drpped--drpped
过去分词的变化（不规则）
A.过去分词与不规则动词的过去式形式一样have—had—had spend —spent—spent make—made—madesay—said—said find—fund—fund hear—heard—heard meet—met—metleave—left—leftfly—flied—flied
B.过去分词与过去式形式不一样take—tk—taken see — saw — seenspeak —spke—spken sing—sang—sung drive—drve—driven be—was/were—been g—went—gne
C.过去分词，过去式与动词原形一样cut—cut—cutput —put—put let—let—letread—read—read
标志词：already(已经), yet(已经)
already: 常用于肯定句中.yet: 常用于否定句,疑问句尾.
I have already seen this film. 我已经看过这部电影了。I haven’t seen this film yet. 我还没有看这部电影。Have yu seen this film yet? 你看过这部电影了没？
since: (自…以来)1)since+时间点He has stayed here since 5 ’clck.2)since+ 时间段+ agHe has stayed here since 5 hurs ag.3)since+ 从句She has taught English since he came here. fr: (长达）fr+ 时间段He has kept the bk fr 2 weeks.
辨析 have been t和 have gne t
have been t smeplace. 曾经去过某地，已经回来．has gne t smeplace.某人去了某地，还没有回来．
My father has gne t Shanghai fr a meeting.他（已经）去了上海。
My father has been t Shanghai fr a meeting.他（曾经）去了上海。
Mr. Brwn has had his TV ______ 15 years. I’ve taken driving lessns _______last mnth. My sister has had her cell phne ______a mnth . My friends haven’t visited me ______my birthday. We haven’t used ur car _____ a lng time . She hasn’t had a gd cup f cffee _____years. Tm has wrn glasses _______he was 7 years ld.
用fr 或since填空
用have/has been t, have/has gne t填空
1.—Where is yur brther? —He ____________ the shp. He’ll be back sn.2. — ______ yu ever _________ t America? —Yes, I ___________ New Yrk twice.3. —Here yu are at last! Where _____ yu _____? —I _____________ Lndn.4. —David _____________Australia. —I’m sure he’s already arrived.5. —Is Benny here? —N, he __________ the schl library. He left five minutes ag.
Have been t
have been t
have been