宾语从句详细讲解及练习题
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宾语从句详细讲解及练习题
在复合句中用作宾语的从句叫宾语从句。
1.语序
无论主句是陈述句还是疑问句,宾语从句都必须使用陈述语序,即“主句+连词+宾语从句(主语+谓语+……)”句式。
2.连接词
1)当由陈述句充当宾语从句时,用that引导,that无词义,在口语或非正式文体中常省略。如:
He said that he could finish his work before supper.他说他会在晚饭前完成工作。
2)当由一般疑问句充当宾语从句时,用if或whether引导,意为“是否”。如:
I don't know if /whether he still lives here after so many years.我不知道这么多年后他是否还住在这儿。
但在下列情况下只能用whether:
①在具有选择意义,又有or或or not时,尤其是直接与or not连用时,往往用whether。如:
Let me know whether or not he will come。让我知道他是否能来。
②在介词之后用whether。如:
I'm interested in whether he likes English.我关心的是他是否喜欢英语。
③在不定式前用whether。如:
He hasn't decided whether to visit the old man.他尚未决定是否拜访那位老人。
④whether置于句首时,不能换用if。如:
Whether this is true or not,I can't say.这是否真的我说不上来。
3)如果宾语从句原来是特殊疑问句,只需用原来的特殊疑问词引导。如:
Could you tell me why you were late for the meeting this morni ng?你能告诉我今天早上你为什么开会迟到吗?
3.时态
含宾语从句的复合句,主、从句谓语动词的时态呼应应包括以下三点内容:
1)如果主句的谓语动词是一般现在时,从句的谓语动词可根据需要,选用相应的任何时态。如:
I don't know when he will come back.我不知道他将何时回来。
He tells me that his sister came back yesterday.他告诉我他姐姐昨天回来了。
2)如果主句的谓语动词是过去时,宾语从句的谓语动词只可根据需要,选用过去时态即一般过去时、过去进行时、过去将来时或过去完成时的某一种形式。如:
①The children didn't know who he was.孩子们不知道他是谁。
②He asked his father how it happened.他问他父亲这件事是如何发生的。
3)如果宾语从句所表示的是客观事实、普遍真理、自然现象或习惯性动作等,不管主句用什么时态,从句时态都用一般现在时。如:The teacher said that the earth goes round the sun.老师说地球绕着太阳转。
4.注意:
if和when既可以引导宾语从句,也可以引导状语从句,应注意它们在两种从句中的意思和用法的不同。if和when引导宾语从句时,分别意为“是否”和“何时”,其时态应和主句时态相呼应;它们引导状语从句时,意思分别为“如果,假如”和“当……时候”,当主句时态是一般将来时时,其时态用一般现在时。它们常常放在含有状语从句和宾语从句的题干中进行综合考查。如:
—Do you know when he will come back tomorrow ?你知道他明天什么时候回来吗?
—Sorry,I don't know.When he comes back,I'll tell you.对不起,不知道。当他回来了,我将告诉你。
—I don't know if he will come.我不知道他是否会来。
—He will come if it doesn't rain.如果不下雨,他会来的。
宾语从句专项训练
I.从下列A、B、C、D中选择一个正确选项填空。
1. I don't know _________ he will come tomorrow. _________ he co mes, I'll tell you.
A. if; Whether
B. whether; Whether
C. if; That
D. if; If
2. I don't know _________ the day after tomorrow.
A. when does he come
B. how will he come
C. if he comes
D. whether he'll come
3. Could you tell me _________ the nearest hospital is?
A. what
B. how
C. whether
D. where
4. Could you tell me _________ the radio without any help?
A. how did he mend
B. what did he mend
C. how he mended
D. what he mended
5. I want to know _________.
A. whom is she looking after
B. whom she is looking
C. whom is she looking
D. whom she is looki ng after
6. Do you know where _________ now?
A. he lives
B. does he live
C. he lived
D. did he live
7. Do you know what time _________?
A. the train leave
B. does the train leave
C. will the train leave
D. the train leaves