有几个英语问题151.We shall___D___hurry if we are to catch the 12:00
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有几个英语问题
151.We shall___D___hurry if we are to catch the 12:00 train.
A.must B.need C.be necessary to D.have to
分析一下其他几个选项
157.You __B____ rather tired.
A.must feel B.must be feeling C.can feel D.may feel
为什么选B?
151.We shall___D___hurry if we are to catch the 12:00 train.
A.must B.need C.be necessary to D.have to
分析一下其他几个选项
157.You __B____ rather tired.
A.must feel B.must be feeling C.can feel D.may feel
为什么选B?
151.must,need在这里是情态动词,是不会放在shall之后的.be necessary to意思上说不通.这句话的意思是如果我们想赶上那趟火车的话,我们将不得不抓紧时间.have to虽然也属于情态动词的范畴,但是它比较特殊,可以有各种时态,所以前面也可以有shall.这个题中,shall的作用和will一样,表示将来.
157.这也是个考察情态动词用法的题目.must be doing表示对正在发生或进行中的事情的一种肯定的推测,意思是:“一定正在.”.这句话表达情景是这个样子的:你正站在我的面前,而且你一服无精打采的样子,然后我就可以对你说you must be feeling rather tired.这种结构的否定形式是cannot be doing,意思是“不可能正在干什么”.选项A理论上也说得过去,但是就没有体现出那种“正在”的含义了.
157.这也是个考察情态动词用法的题目.must be doing表示对正在发生或进行中的事情的一种肯定的推测,意思是:“一定正在.”.这句话表达情景是这个样子的:你正站在我的面前,而且你一服无精打采的样子,然后我就可以对你说you must be feeling rather tired.这种结构的否定形式是cannot be doing,意思是“不可能正在干什么”.选项A理论上也说得过去,但是就没有体现出那种“正在”的含义了.
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