Mountain climbing ______ be really dangerous at times even though it is challeng
题型：不详难度：来源：
Mountain climbing ______ be really dangerous at times even though it is challenging and exciting in general.| A．can | B．should | C．shall | D．must |
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答案
| A |
解析
试题分析：在平时的学习中既要注意情态动词的基本含义，也要注意情态动词的特殊意义，如must偏偏，非得；should竟然；mustn’t禁止，千万不能；等等。情态动词Shall用于所有人称，表示命令，警告，允诺；以及法律规定中要做的事情。情态动词can能够，可能；should应该；shall将要；must一定，必须；本句考察的是情态动词can的一个特殊用法“有时候会…”；句义：即使登山总的说来很有挑战性也很让人兴奋，但是有时候它也很危险。故A正确。 |
举一反三
---I saw Mr. Smith at Xianyang Airport this morning.
---You ____. He’s still on holiday in Hawaii.| A．can’t | B．couldn’t have | C．mustn’t have | D．needn’t |
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(2013·北京东城二次联考)—________ you interrupt now？Can"t you see I"m on the phone?
—Sorry，sir，but it"s urgent.| A．Can | B．Should | | C．Must | D．Would |
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Students ________ remain in their seats until all the papers have been collected.| A．shall | B．might | | C．could | D．will |
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(2013·合肥一检)According to the rules and regulations, all payments ________ be made in cash in the shopping center.| A．shall | B．can | | C．must | D．should |
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It ________ have been her to leave her child alone and do whatever she wanted. She isn"t such a person.| A．couldn"t | B．mustn"t | | C．mightn"t | D．wouldn"t |
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