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例1 |
I don’t know ________ he will come or not. |
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A. |
how |
B. |
whether |
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C. |
weather |
D. |
when |
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答案: |
B |
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提示: |
在宾语从句中出现了or not,这里只能用whether。 第二题答案为B,根据题意问他们何时回来,所以要用when。 |
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例2 |
Can you tell me ________they will come back? |
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A. |
where |
B. |
when |
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C. |
which |
D. |
who |
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答案: |
B |
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提示: |
根据题意问他们何时回来,所以要用when。 |
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例3 |
Have you seen the doctor? He asked me. (两句并一句) |
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答案: |
He asked me if / whether I had seen a doctor |
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提示: |
是一般疑问句,连接词应为if / whether |
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例4 |
How can we get to the science museum? Could you tell us?(两句并一句) |
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答案: |
Could you tell me how we can get to the science museum? |
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提示: |
特殊疑问句,连接词就是它本身的特殊疑问词how,将情态动词can放在主语me之后,时态运用取决于主句。主句could you tell
me是委婉语气,是一般现在时,所以从句是什么时态就用什么时态。 |
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