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一、什么是宾语从句
在句中充当宾语的从句叫作宾语从句，宾语从句可作谓语动词的宾语，也可作介词的宾语。
二、宾语从句的引导词
1、 that 无实意，用来引导陈述句的宾语从句，口语中常省略。例如：
She told me that she had been to Hong Kong twice.
她告诉我她去过香港两次。
I know（that）the visitors are from Australia.我知道这些游客来自澳大利亚。
2、if或whether这两个词是“是否”的意思，主要用来引导一般疑问句或选择问句的宾语从句，口语中多用if，不能省略。例如：
He asked me if / whether I had been to Beijing twice.
他问我是否去过北京两次。
She wanted to know whether I would go there or not.
她想知道我是否想去那里。
3、疑问词when ，where，who，how等，这类词通常引导特殊疑问句的宾语从句。例如：
Can you tell me how I can find Mr Wang？
你能告诉我怎样才能找到王先生吗？
Please find out who broke the window.请查一下是谁打烂窗户的。
三、宾语从句的语序
凡是从句都必须使用“主语在前，谓语在后”的陈述语序，宾语从句也不例外，也就是说宾语从句的语序必须是“引导词+主语+谓语+其它”。例如：
误：Could you tell me where is the bus station？
正：Could you tell me where the bus station is？
四、宾语从句的时态一致
1、 当主句为一般现在时或一般将来时的时候，从句可以根据需要选择相应的时态，不受主句的影响；主句为一般过去时，从句要用相应的过去时态。例如：
I want to know what time he ate his breakfast.
我想知道他今天早晨几点钟吃早饭的。
They will tell us that they have been able to look after themselves.
他们将会告诉我们他们已经能照顾自己了。
I asked what my father was doing then.
我问那时我爸爸在干什么？
2、 当宾语从句表述的是客观真理或自然现象是，宾语从句的时态不受主句的时态的影响，仍然用一般现在时。如：
He said the moon moves round the earth.
他说月亮围着地球转。
She asked whether light travels faster than sound.
她问光速是否比声速快。
牛刀小试：
1—Could you tell me ______?
—It’s near the post office.
A. where is the bookstore
B. the bookstore is where
C. where the bookstore is
2.Many people are talking about this disease these days.
Could you tell me______?
A． how can I keep healthy B. how I can keep healthy
C. I can keep healthy
3. —Excuse me .Could you tell me____ I can get to the Space Museum?
—Of course. You can take bus No.1.
A．where B. how C .if
4—Do you know ______the girl in red is ?
—I’m not sure .Maybe a teacher.
A. when B. where C. what
5—What did your parents think about your decision?
—They always let me do _____I think I should.
A. when B. that C. what
6.I hear Tom lives here ,but I’m not sure_____.
A. which room he lives in
B. which room does he live in
C. he live in which room
7.—We can use QQ to communicate with each other online.
—Good. Will you please show me_____.
A. which to use B. how to use it
C. where to use it
8.There are many people downstairs. What do you think____?
A. to happen B. happening
C. has happened
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