大学英语四六级考试虚拟语气详解资料

　　全句意思是：“旅馆管理部门恳请客人晚上11点后不要打开收音机”。句中的谓语动词request(请求)所引出的从句应当用虚拟语气，即动词原形或“should+动词原形”。本句的主语从句中，主语radio是谓语动词play 的客体，谓语应当用被动语态。所以，答案是C) not be played。在上述这类句子中不能用动词过去时形式表示虚拟语气，所以A)不正确。选项B) not to play是动词带to的不定式，不能在句中作谓语。选项D)did not play也是动词play的过去时形式，同样不能在本句中作为虚拟语气来使用。而且，它是主动语态形式，而本题要用被动语态。

　　练习：

　　16). The chairman requested that .

　　[A]the members studied more carefully the problem

　　[B]the problem was more carefulnessly studied

　　[C]with more carefulness the problem could be studied

　　[D]the members study the problem more carefully

　　17). The committee recommends that the matter at the next meeting .

　　[A]would be discussed

　　[B]will be discussed

　　[C]be discussed

　　[D]may be discussed

　　18). The doctor insisted that his patient .

　　[A]that he not work too hard for three months

　　[B]take it easy for three months

　　[C]taking it easy inside of three months

　　[D]to take some vacations for three months

　　三、在expect, believe, think, suspect等动词的否定或疑问形式后的宾语从句中的虚拟语气

　　在expect, believe, think, suspect等动词的否定或疑问形式后的宾语从句中，我们经常用“should+动词原形(或完成形式)”，表示惊奇，怀疑，不满等。

　　I never thought that he should be such a brave young soldier.

　　我们从来没想到他是个如此勇敢的小战士。

　　练习：

　　1) that the time will soon be ripe for intervention in Iran，they would be faced by a large army?

　　[A]It is believed

　　[B]Should they believe

　　[C]They would believe

　　[D]If they would believe

　　2) I think it advisable that he for Tokyo soon.

　　[A]will leave

　　[B]may leave

　　[C]leave

　　[D]leaves

　　四、would rather ， would sooner，had rather， would (just) as soon ，would prefer之后的宾语从句中的虚拟语气

　　would rather , would sooner, had rather, would (just) as soon，would prefer(希望)也用来表达主观愿望，它们之后的宾语从句中需用虚拟语气。谓语动词用过去式表示现在或将来，用过去完成式表示与过去事实相反。表示”宁愿做什么”或"对过去做的事的懊悔"。

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