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第一PPT > PPT課件 > 英語課件 > 外研版九年級英語下冊 > 《Language in use》Travel PPT免費(fèi)課件

《Language in use》Travel PPT免費(fèi)課件

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《Language in use》Travel PPT免費(fèi)課件《Language in use》Travel PPT免費(fèi)課件

外研版九年級英語下冊《Language in use》Travel PPT免費(fèi)課件,共49頁。

Learning Goals

通過本課的學(xué)習(xí),學(xué)生能夠:

①復(fù)習(xí)鞏固狀語從句和不定式的用法

②給出學(xué)習(xí)英語的一些建議

Warming Up

Let’s first enjoy a beautiful song and you should tell which word appeared most often in the song after listening.

if 引導(dǎo)條件狀語從句

If the hero never comes to you.

若英雄不來救美而你無法退場

If you need someone you’re feeling blue

若你需要個(gè)人而你正為此憂傷

If you wait for love and you’re alone.

若你在企盼愛而你偏獨(dú)守空房

If you call your friends and nobody’s home.

若你給朋友打電話卻沒人在家

狀語從句(The adverbial clause)

一、狀語從句的概念和基本類型

狀語從句是指句子用作狀語時(shí),起副詞作用的句子。狀語從句一般由連詞(從屬連詞)引導(dǎo),也可以由詞組引起。從句位于句首或句中時(shí)通常用逗號與主句隔開,位于句尾時(shí)可以不用逗號隔開。

狀語從句根據(jù)其作用可分為時(shí)間、地點(diǎn)、原因、條件、目的、結(jié)果、讓步、方式和比較等從句。

二、狀語從句辨析

(一)時(shí)間狀語從句

1.while, as, when

(1)while只能用于延續(xù)性動(dòng)詞。當(dāng)從句和主句的謂語動(dòng)詞都為延續(xù)性動(dòng)詞,且有對比關(guān)系的時(shí)候,只能用while。例如:

Strike while the iron is hot. 

趁熱打鐵。(用于延續(xù)性動(dòng)詞)

While my wife was reading the newspaper, I was watching TV.

當(dāng)我妻子在看報(bào)紙的時(shí)候,我在看電視。(表動(dòng)作同時(shí)發(fā)生)

(2)as可以表示主句和從句的動(dòng)作同時(shí)進(jìn)行,譯為“一邊……一邊……”;也可以表示“時(shí)間的推移,隨著”。例如:

As time went on, the weather got worse.

隨著時(shí)間的流逝,天氣變得越來越糟。

(3)when一般用于短暫性動(dòng)詞和延續(xù)性動(dòng)詞,且當(dāng)表示動(dòng)作先后發(fā)生時(shí),只用when,不用while。例如:

When he had finished the homework, he took a short rest.

他完成作業(yè)后,休息了片刻。(表示動(dòng)作先后)

2. before, after

before表示主句動(dòng)作發(fā)生在從句動(dòng)作之前;after表示主句動(dòng)作發(fā)生在從句動(dòng)作之后。例如:

Take care of my baby after I leave.

在我離開之后照顧好我的孩子。

She worked in Shanghai before she came here.

她來這之前在上海工作。

注意:before和after 也可以作介詞,此時(shí)后接名詞或動(dòng)名詞。

I would like to think it over before deciding .

我還是想想再決定吧。 

3. until與till及not...until / till

(1)until, till

用于肯定句中,until和till的用法一樣,主句動(dòng)詞為延續(xù)性動(dòng)詞,表示“直到……為止”。但是位于句首的時(shí)候只能用until。例如:

I waited for him till / until he came back.

我一直等到他回來。

Until you told me the news I had no idea of it.

我對這個(gè)消息一無所知,直到你告訴我。

(2)not…until / till

用于否定句中,多用until,主句用非延續(xù)性動(dòng)詞,表示“直到……才”。例如:

I didn’t go to bed until my father came back.

直到我父親回來我才上床睡覺。

4. since

由since引導(dǎo)的時(shí)間狀語從句,一般情況下,當(dāng)從句謂語動(dòng)詞用一般過去時(shí),而主句的謂語動(dòng)詞用現(xiàn)在完成時(shí)。

Where have you been since I last saw you? 

自上次我和你見面以后,你到哪里去了?

... ... ...

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