牛津英語8B Unit1現(xiàn)在完成時態(tài)復(fù)習教案

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牛津英語8B Unit1現(xiàn)在完成時態(tài)復(fù)習教案作者：yangyunolivia

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牛津英語8B Unit1現(xiàn)在完成時態(tài)復(fù)習教案

Unit 1

課題

Terminal Revision

課時

日期

教學(xué)目的

1.To go over the knowledge in unit 1

教學(xué)重點和難點

1.present perfect tense and some words and expressions

教學(xué)過程

一、重點單詞：just,since,fact,turn,miss,pleasant,land,way,lonely,lucky,grandpa,unkind,impolite,over,unhealthy

二、短語運用：in fact,get married,turn into,noise pollution,take off,in some ways,from time to time,be in service/use,free time,on one's own,on longer,the changes to；

三、重點結(jié)構(gòu)：It is easy for him to see them as often as before.

It was built to the north of Lantau Island.

I wish you ahappy holiday.

It no longer provides agood environment for wildlife.

The changes have brought many benefits but they have also caused many problems for wildlife.

四、語法：現(xiàn)在完成時，present perfect tense 1、現(xiàn)在完成時所表示的動作發(fā)生在過去，但考慮較多的不是動作發(fā)生在過去的什么時候，而是強調(diào)與目前的聯(lián)系，即過去與現(xiàn)在的關(guān)系。強調(diào)過去的動作對目前造成的影響和后果，或強調(diào)動作本身或狀態(tài)持續(xù)地現(xiàn)在，因此屬于現(xiàn)在時范疇。它的主要用法可概括為八個字：影響、結(jié)果、持續(xù)和經(jīng)歷。

2、現(xiàn)在完成時的構(gòu)成：

肯定式：I/We/you/they have+been/worked she/he/it has+been/worked

否定式：have not+been/worked has not+been/worked

疑問式：Have+主語+been/worked…?

Has+主語+been/worked…?

3、現(xiàn)在完成時的用法

(1)表示過去發(fā)生的某一動作對現(xiàn)在生成的影響或結(jié)果。

如：He has read the book.他已經(jīng)讀過這本書了。

"讀書"是發(fā)生在過去的動作，對現(xiàn)在造成的結(jié)果是"讀過了"。

(2)表示動作過去已經(jīng)開始，持續(xù)到現(xiàn)在，可能還要繼續(xù)下去。這時往往與表示一段時間的狀語連用。

如：He has worked for more than three years.他工作三年多了。

I have been in Suzhou for ten years.我來蘇州已經(jīng)十年了。

(3)現(xiàn)在完成時屬于現(xiàn)在時態(tài)范疇，不能和表示過去的時間狀語連用，如yesterday,last week,a day ago等。但可以和never,ever,already,yet,just(剛剛),for…,since…,in the past three years,so far(到目前為止),by now,before(以前)等連用。

如：Have you finished your picture yet?你已經(jīng)完成你的畫了嗎?

I have never heard of him before.過去我從未聽說過他。

(4)瞬間動詞也叫短暫性動詞。這種動詞動作開始也就意味著結(jié)束，所以不能與表示一段時間的狀語連用。這些動詞是become,begin,start,buy,borrow,arrive,come,die,fall,finish,go,join,leave,marry等。這了表述這種意思，我們常用相應(yīng)的延續(xù)性動詞have,keep等或短語"be+名詞/形容詞/位置副詞/介詞短語"來代替短暫性動詞。

如：He has kept the book for three weeks.這本書他已借了三周了。

The meeting has been on for half an hour.會已開始半小時了。

He has been in the army for three years.他參軍三年了。

(5)其他詞組的區(qū)別

①since和for的區(qū)別

since短語或從句表示過去的動作延續(xù)至今，since之后為時間點。

如：He has lived here since 2000.2000年以來他一直住在這兒。

I haven't seen him since ten years ago.自十年前開始我就沒見過他。

I have known him since Iwas very young.我很小時就認識他了。

For短語表示動作延續(xù)多長時間，for后面跟時間段。

如：He has lived here for three years.他住這兒已經(jīng)三年了。

I haven't seen her for along time.我已經(jīng)好久沒見到她了。