九年級英語The green consumer教案
chapter 1 the green consumer
一. 教學內容:
chapter 1 the green consumer language, writing and more practice
(一)本章語法內容:why與because的用法、同級比較、like, the same as與different from的用法
(二)寫作練習:如何解決環(huán)境污染問題
(三)課外閱讀理解練習:污染
二. 知識總結與歸納
(一)語法內容
why與because的用法
why能引導下列幾種從句:
1. 主語從句
why he took chinese nationality in 1901 is a question that interests us.
他為什么在19xx年取得中國國籍,這是一個使我們很感興趣的問題。
2. 賓語從句
he asked her why she was doing that.
他問她為什么要那樣做。
3. 表語從句
that’s why i’ve come to see you.
這就是我來見你的原因。
could you tell me the reason why she refused to go to college?
你能否告訴我為什么她不愿意上大學嗎?
4. 狀語從句
no matter why she became angry with you, you should apologize to her.
不管她為什么對你生氣,你也應當向她道歉。
why作疑問詞
可以用來向對方問及原因,可以用why?或why not?二者都是省略句。
1. “why?”用來針對肯定的內容發(fā)問。
a: what are you going to do tomorrow?
b: nothing much. why? (=why do you ask me that?)
2. why not? 用來針對否定的內容發(fā)問,用在下列幾種情況中:
①對一般疑問句的否定回答進一步詢問原因時。例如:
a:do you often go to school by bike?
b: no, i don’t.
a: why not? (=why don’t you go to school by bike?)
②對反意疑問句的否定回答進一步詢問原因時。例如:
a: you haven’t finished your homework, have you?
b: no, i haven’t.
a: why not?(=why haven’t you finished it?)
③ 對否定陳述句詢問原因時。例如:
a: i can’t finish this work in two days.
b: why not?(=why can’t you finish it in two days?)
④對表示建議、提議的回答時,形式上是否定,實際上是一種強調肯定的語氣。例如:
a: could you come with me?
b: why not?(=i can go with you.)
why用作引導詞(又稱感嘆句)
放在句首或句中作插入語,表示驚奇等各種各樣的情緒
①“...” “next friday? why, what’s happening?”“……”“下星期五?啊,有什么事嗎?”
②why! i thought you were in london.哎呀!我還以為你在倫敦呢!
③why, it’s quite easy! a child could do it!唔,那是相當容易的!小孩子也會做!
④why, what did she say?呃,她說什么?
why 用在書和文章的標題中
用一種不規(guī)范的句子語序也是符合語法的。例如:
why i am learning english?
我為什么學習英語?
why the bat comes out only at night?
為什么蝙蝠只在夜里出來?
“why+不定式”時,不定式的動詞常是不及物動詞。例如:
he doesn’t know why to go there.他不知道為什么去那里。
why在口語中可以用作賓語。例如:
tell me why. 告訴我為什么。
i don’t know why. 我不知道為什么。
why not 和why don’t
常表示一種建議: why not go with me? 何不跟我一起去?(希望對方也去)
why don’t是疑問的用法:why don’t you answer this question? 為什么不回答這些問題?