Unit 2 Colours --Grammar
【学习目标】
1. 熟练掌握宾语从句三要素:引导词,语序,时态
【学习过程】
Step 1: 自主学习----明确目标 自学文本
任务一:请同学们课前上平台阅读思考本节预习案,明确本节课的学习任务和目标。
任务二:自学教材
请带着下面这些问题阅读教材。
1.什么叫宾语从句?
2.宾语从句的三要素:__________________________________________________
3.找出grammar里面的新单词和短语。
【知识探究】
宾语从句: 宾语从句是指一个句子充当宾语,在主句与从句之间有一个引导词。
eg. We know that Mr Green teaches English.
She asked if these answers were right.
不同引导词引导的宾语从句
由that引导的宾语从句
由whether, if 引导的宾语从句
由连接代词 who,whom,whose,which,what 和连接副词 where,how,why,when
(即疑问词)引导的宾语从句
that 引导的宾语从句
一、引导词本身的省略与不省略
1. 一般可以省略
连词that引导宾语从句,它本身无意义,在口语或非正式文体中常省略。
e.g. He says (that) he is a Young Pioneer.
他说他是个少先队员。
2. 不可以省略
从句的主语是that时,that不省略。
e.g. We know that that is an interesting story.
我们知道那是一个有趣的故事。
二、何时使用that引导的宾语从句
that引导的宾语从句,表示陈述一件事,即由陈述句转化而来。
1. 主句的谓语动词是 think, hear, hope, wish, remember, forget, know, say, guess等时,常接that引导的宾语从句。
e.g. I hope (that) he will be fine soon.
我希望他很快好起来。
2. 主句由“连系动词+形容词”构成的“系表”结构,常接that引导的宾语从句。这类形容词多表示感情,如 happy, glad, sorry, sad, sure, afraid, certain 等等。
e.g. I’m afraid (that) he can’t come.
恐怕他不能来了。
三、that引导的宾语从句相关的内容
1. 语序
不论什么情况下,宾语从句都要用陈述语序,即“主语+谓语+其它”。
e.g. Do you think (that) the radio is too noisy
你认为收音机太吵吗?
2. 时态
When the main clause uses the simple present tense or future tense, the object clause still uses the original tense.
宾语从句,主句用一般现在时,从句可以用符合句意要求的任一时态。
e.g. He says (that) they have returned already.
他说他们已经回来了。
When the main clause uses the simple past tense, the tense in the object clause should be changed into the corresponding past tense.
如果主句用一般过去时,从句要用过去时态的某种形式(一般过去时,过去进行时,过去将来时,过去完成时)。
e.g. I saw that she was dancing.
He said that he had seen it .
He said that his father would come back.
[注]如果从句表达的是客观事实、真理、自然现象、名言、警句、格言、谚语等等,尽管主句用一般过去时,从句也要用一般现在时。
e.g. Our teacher told us that light travels faster than sound.
我们老师告诉我们,光比声音传播得快。
that 引导的宾语从句
1.He will be back in an hour. I hear.
I hear ______ he ____ be back in an hour.
2.They miss us very much. She said.
She said ____ they ______ us very much.
3The earth travels around the sun.The teacher told us
The teacher told us ___ the earth______ around…
4.She can’t finish her homework by herself.
We are sure that she ___________her homework by herself.
由whether, if 引导的宾语从句
if/ whether “是否”,说明对陈述的事物不明确或不清楚。常用在ask, wonder, can(could) you tell me, be not sure等后。(从句部分的语义相当于一个一般疑问句,语序必须是陈述句语序)
1. I want to know _____________________________________.
2. Ask him _________________________.
3. I wonder ____________________________.
4. Could you tell me________________________
一般疑问句变为if (whether)引导的宾语从句
Can he go to the park with us I want to know.
I want to know _______________________________.
Does the white dress suit me My mother asked.
My mother asked _______________________________.
Is the monitor absent The teacher asked.
The teacher asked ______________________________.
只能用whether不能用if的情况
1.在介词后面:
I’m thinking of whether we should go fishing.
We are worried about whether it will rain tomorrow.
2.在动词不定式前:
They asked me whether to go skating.
3.当与or或or not连用,
I don’t know whether he’s free or not.
Mary asked whether I was doing my homework or not.
Tell me whether you’d like to go shopping or tidy the room.
4.宾语从句提前,位于句首时:
Whether this is true or not, I can’t say.
【随堂检测】
(Unit 2-Grammar)随堂检测
一、根据首字母或中文提示写单词。
1. I had very little contact with teenagers in my e___________ life.
2. There was a ___________ (庆祝活动) in that shopping mall that night.
3. These a________ weapons are all cast out of bronze (青铜).
4. Think it over and let me know ________ (是否) you agree with me.
二、选择题。
1. — How long does it take to get to the airport
— Forty minutes. But it’s foggy today.
I’m not sure _______ the highway will close soon. Let’s set off earlier.
A. whether B. when C. how D. why
2. The teacher told the children that the sun ____ round.
A. was B. is C. were D. are
3. I believe that our team ____ the basketball match.
A. win B. won C. will win D. wins
4. I don’t know ____ to visit the old man.
A. whether B. if C. that D. who
5. She wanted to know _____ her mother liked the present.
A. which B. that C. if D. what
6. Do you know if ______ back next week If he ______ back, please let me know.
A. he comes, will come B. will he come, comes
C. he will come, comes D. will he come, will come
7. The young man asked _____ it's summer or winter.
A. if B. that C. weather D. whether
8. Does anybody know ______ we will have a sports meeting this weekend or not .
A. if B. where C. whether D. that
9. Lily said _______ she had finished her composition .
A. if B. that C. when D. where
10. I don’t know ______ he still lives here .
A. that B. what C. when D. whether
参考答案
随堂检测
一、1. everyday 2.celebration 3. ancient 4. whether
二、1-10 ABCACCDCBD