It’ s suggested by experts that teenagers ____at least 30 minutes exercising, fi
题型：不详难度：来源：
It’ s suggested by experts that teenagers ____at least 30 minutes exercising, five times a week.| A．spend | B．to spend | C．spent | D．have spent |
|
答案
| A |
解析
试题分析：suggest后的从句用虚拟语气，should+do,should可省略。指advise, suggest, propose, recommend，demand, require, request等后的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略
点评：本题难度适中。虚拟语气是高考常考的内容，需要考生熟记它们的各种情况，多记多练，还必须会分析理解句子的成分。
即学即练：It is strongly recommended that the machines____ every year.
A. check B. should be checked C. checked D. shouldcheck
解析：B。句意：建议每年一定把机器检修一次。 |
举一反三
You trust an online shop just because it has a beautifully-designed website.| A．shouldn’t | B．couldn’t | C．mustn’t | D．needn’t |
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Some aspects(方面) of a teacher’s job ______ be tiring, and teachers often ______ work at inconvenient hours.| A．can; must | B．may; can | C．can; have to | D．have to; must |
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The new law states that people _________ drive after drinking alcohol.| A．wouldn"t | B．needn"t | C．won"t | D．mustn"t |
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I wrote a letter to John for his help during my high school years. without which I the college entrance exam.| A． would fail | B．would have failed | C．should fail | D．must have failed |
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_____ you have the chance to go to the university in the future, you must take it.| A．Will | B．Would | C．Could | D．Should |
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