現(xiàn)在完成時(shí)(知識(shí)梳理)-wenkub
2022-09-02 08:49:00 本頁(yè)面
【正文】 er two years. 我到這里才兩年多。如：for three years, for half an hour等。3）非延續(xù)性動(dòng)詞不能直接和for 或since 連用，但我們可以找一個(gè)相應(yīng)的延續(xù)性動(dòng)詞或動(dòng)詞短語(yǔ)來(lái)替換這些非延續(xù)性動(dòng)詞。He has had his breakfast.（現(xiàn)在完成時(shí)）他吃過(guò)早飯了。Mr. Green has been in China for many years. 格林先生在中國(guó)呆過(guò)好多年了。t seenExercises2] 選擇填空( )1.—Have you finished your work? — .(A).Yes,I have. (B)Yes,I do. (C)Yes,I am. (D)Yes,I did.( )2.—Has she ever learned English? — (A)Yes, she has. (B)Yes, she does. (C)No, she doesn’t (D)No, she has( ) finished his homework. yet(A)doesn’t (B)haven’t (C)hasn’t (D)doesn’t haveA: Where ____________ Li Fei ___________?B: He ____________ to Hainan Island.A: How long ___________ he ___________ there?B: He _____________ there for three days.A: When will he e back , do you know?B: I’m afraid he won’t e back recently.A: Could you tell me the way to Hainan Island?B: Sorry, I _________ never ___________ there.A: How many times ___________ Li Fei __________ to that place?B: He _____________ there only once. B） 用have/has been to/in, have gone to的各種形式填空。t see (D)would…meet, hadn39。t seen (B)did…meet, haven39。t finished our homework .(A)already (B)ever (C)yet (D)never( )4.—Have you learned English? —Yes, I39。s photo before(A)haven39。五、重點(diǎn)句型:It is/ has been+段時(shí)間+since從句 段時(shí)間+has passed+ since從句舉例：他死了兩年了。have/has been in:表示某人“已在某地停留一段時(shí)間，現(xiàn)仍在那里”，其后常帶表示一段時(shí)間的狀語(yǔ)。三、現(xiàn)在完成時(shí)和一般過(guò)去時(shí)的區(qū)別及聯(lián)系：1）都表示過(guò)去發(fā)生的事；2）現(xiàn)在完成時(shí)強(qiáng)調(diào)過(guò)去和現(xiàn)在的聯(lián)系，不能和具體的時(shí)間狀語(yǔ)連用；3）一般過(guò)去時(shí)強(qiáng)調(diào)過(guò)去發(fā)生的事或狀態(tài)與表示過(guò)去的具體時(shí)間連用（last, ago, yesterday, etc.）。since 還可用作連詞，引導(dǎo)一個(gè)過(guò)去時(shí)態(tài)的時(shí)間狀語(yǔ)從句。1） 因?yàn)楸硎镜氖浅掷m(xù)的動(dòng)作或狀態(tài)，所以使用的動(dòng)詞通常是延續(xù)性動(dòng)詞：be, stay, study, wait, keep, have等。二、現(xiàn)在完成時(shí)的定義及用法（2）表示過(guò)去已經(jīng)開(kāi)始，持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)，也可以表示實(shí)質(zhì)可能繼續(xù)下去的動(dòng)作或狀態(tài)。I have already finished my homework. 我已經(jīng)做完家庭作業(yè)了。I have just cleaned my clothes. 我剛洗過(guò)衣服?，F(xiàn)在完成時(shí)的否定句：是在助動(dòng)詞have(has)的后面加not構(gòu)成。我們已經(jīng)錯(cuò)過(guò)春天了。Winter must be
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