题目内容
7.---How often does Lara play the trumpets?--- once or a week,I'm not sure.( )
| A. | May be; twice | B. | Maybe; twice | ||
| C. | Maybe; two time | D. | May be; two times |
分析 --劳拉多久吹一次小号?
--也许一周一到两次,我不确定.
解答 答案:B.考查情态动词.句意"--劳拉多久吹一次小号?--也许一周一到两次,我不确定.".第一个空,may be也许是,用在这里结构不正确.用副词maybe也许.因此A,D不正确.第二个空,表示两次可以是twice或two times,因此C不正确.答案是B.
点评 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语.否定形式通常在后面加not.要注意情态动词的不同用法.
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