8B Unit1復(fù)習(xí)教案

時間：2023-04-25 10:02:09 教案我要投稿

8B牛津unit1復(fù)習(xí)教案推薦度：
相關(guān)推薦

8B Unit1復(fù)習(xí)教案2010年12月24日星期五13：42 8B Unit1復(fù)習(xí)教案

教學(xué)目的1.To go over the knowledge in unit 1

8B Unit1復(fù)習(xí)教案

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 havealso 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"。

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。

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。

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。

②have/has been in,have/has been to和have/has gone to的區(qū)別