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八年级英语Friendship教案

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Module 2 Friendship
一.  教学内容:
Module 2 Friendship
 
二. 重点内容:
语法知识:宾语从句;
语言知识:词汇及词语辨析
 
三. 具体内容:
(一)语法指南
宾语从句
放在动词后面做宾语的句子,我们称之为“宾语从句”。宾语从句根据其表达意义与疑问的差别可以分作三类,一类由that引导,一类由whether/if引导,还有一类由疑问词引导。常用作宾语从句的连词有:that, if whether, what, which, who, whom, where, how, why等。
1. 当谓语动词表示肯定概念时,如“希望”、“相信”“知道”“说”,其后面的句子一般用that引导。That没有任何词汇意义,只有语法功能,使读者清楚后面的句子是前面动词的宾语。That在从句中不充当任何句子成分,只起连接主句和从句的作用。that不用翻译出来,在口语当中常省略。除此以外,又语从句中有自己的主语,很容易与前面的主句分开,因此多数情况下that可以省略。如:
Betty thinks(that)trees improve the air.
贝蒂认为树可以改善空气。
I hope(that)it will snow this winter.
我希望今年冬天能下雪。
I believe(that)we’ll become good friends.
我相信我们会成为好朋友。
有一点要注意,并非所有的动词后面都可接that引导的从句。接that引导的从句的谓语动词不可含有疑问的含义,常见的多是表示观点、看法、意念、要求等方面概念的词,如:believe, feel, hear, hope, expect, explain, prefer, promise, report, say, see, tell, think, understand, wish, warn等。
2. whether/if 引导的宾语从句
如果我们要标达一个不确定的概念,比如:“记不清”、“不知道”、“问”、“想知道”等等,就要用whether/ if 表示,不能再用that。
He doesn’t know whether they will plant trees on Saturday or not.
他不知道他们周六是否会去植树。
I can’t remember whether/if I have seen him before.
我记不清以前是否见过他。
He asks whether/ if we will go fishing on Sunday.
他问周日我们是否去钓鱼?
Tom wants to know whether/ if he needs to come early tomorrow.
汤姆想知道明天他是否有必要早来。
注意:一般情况下if和whether可以通用。但如果从句后面还有一个选择性词语or not,则常用whether,构成 whether…or not的结构。
3. 疑问词引导的宾语从句
有的句子不是用that连接,也不是用whether或if连接,而是用when,where,how,
Why等疑问词连接。这是从句意思表达的需要。比如“他问什么时间出发”中的“什么时间出发”必须用一个疑问词才能表达;如果遇到什么时间,什么地点,什么方式,什么原因之类的疑问时,我们就要是用相应的疑问词来连接从句。但是同学们一定要注意,在疑问词引导的宾语从句中,一定要用陈述句语序。如:
He asks how we can help protect the environment.
他问我们怎样才能为保护环境出点力。
I can’t understand why they like computer games so much.
我不理解他们为什么如此喜欢电脑游戏。
They haven’t decided where they should go for the holiday.
他们还没有确定到什么地方去旅行。
Do you know when we will hold the sports meeting?
你知道我们什么时候开运动会吗?
 
(二)语法专项训练
1. —Do you know ______ I could pass the exam?
—Sorry, I’ve no idea.
A. that  B. whether  C. what   D. which
2. —I’m waiting for the mail. Do you know _______ it will arrive?
—Usually it comes by 4:00.
A. how  B. where   C. when   D. what
3. I’d like to know _____ or not.
A. whether will he come     B. whether has he come
C. whether he will come     D. that he will come
4. They asked me ________ during the May Day holidays.
A. where had I gone     B. where I had gone 
C. where had I been      D. where I had gone
5. She did not tell us ________.
A. how old the patient is     B. how old was the patient
C. how old the patient was    D. how old is the patient
6. —We don’t know _______ he is.
—They say he is much better these days.
A. what   B. who    C. how   D. where
7. Could you tell me _____ yesterday?
A. what they do      B. what they did  
C. what do they do      D. what did they do
8. I knew that the sun ________ in the east when I was a child.
A. will rise  B. rose   C. rise   D. rises
9. She said ______ she would leave the message on the headmaster’s desk.
A. that   B. where   C. which   D. what
10. The man asked me if I _______ him the way to the bus stop.
A. can tell  B. could tell   C. will tell  D. tell
 
(三)重点句子详解
1. Dig slowly, or you‘ll be too tired to finish.
慢慢挖,不然的话你会很累,干不完活的。
* 本句是“祈使句+or+并列分句”的句型,or连接连个分句,前面的分句相当于if引导的否定性从句。如:

八年级英语Friendship教案由www.jiaoshi66.com收集及整理,转载请说明出处www.jiaoshi66.com
www.jiaoshi66.com  Hurry up, or you’ll be late.
 = If you don’t hurry up, you will be late.
   你快一点,不然就迟到了。
Take the chance, or you will regret.
=If you don’t take the chance, you will regret it.
抓住这个机会,否则你会后悔的。
Stand still, or I’ll shoot.
=If you don’t stand still, I’ll shoot.
* 有时前一个句子只有一个名词或名词短语。
A word from you and he’ll change his mind.
=If you say a word, he’ll change his mind.
只要你说一句话,他就会改变主意。
One more foul and he’ll be sent out of the court.
他再犯一次规,就要罚出场了。
*“祈使句+and+并列分句”的句型中,祈使句表示条件,相当于一个条件状语从句。如:
 Work hard and you’ll succeed.
 = If you work hard, you’ll succeed.
 努力学习,你就能成功。
 Stir,and you are a dead man.
=If you stir, you are a dead man.
动一动我就打死你。
* too…to意为“太……而不能……”,其句型结构为“too+形容词/副词+to+动词原形”,该句型用于肯定句,但表达否定的意思。如:
He is too old to walk.
他太老了,以致走不动了。
It’s too hard for him to learn English well.
学好英语对他来说太难了。
The box is too heavy for me to carry.
那只箱子对我来说太重了,搬不动。
* 当too…to do前面有only,but等词时,或出现“never too…to do”或“too…not to do”的双重否定时,该句型就不表达否定含义了。如:
    It’s never too old to learn.
 活到老,学到老。
 You are never too old to enjoy the music.
 你不会因为年纪大了而不喜欢这音乐。
2. We’re cutting down too many trees.
我们正在过量砍伐树木。
* cut down 此处意为“砍倒”

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