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否定转移
2023-12-071) 将think, believe, suppose, expect, fancy, imagine等动词后面宾语从句的否定词转移到主句中,即主句的谓语动词用否定式,而从句的谓语动词用肯定式。 I don't think I know you. 我想我并不认识你。 I don'...
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if, whether引导的名词从句
2023-12-071)yes-no型疑问从句从属连词if, whether引导的名词从句是由一般疑问句或选择疑问转化而来的,因此也分别被称为yes-no型疑问句从句和选择型疑问从句,其功能和wh-从句的功能相同, 例如: 主语:Whether the plan is feasible remains to be pr...
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名词性wh-从句
2023-12-071)由wh-词引导的名词从句叫做名词性wh-从句。Wh-词包括who, whom,. whose, whoever, what, whatever, which, whichever等连接代词和where, when, how, why等连接副词。Wh-从句的语法功能除了和that-从句一样外,还可...
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名词性that-从句
2023-12-071)由从属连词that引导的从句叫做名词性that-从句。 That只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有词义。名词性that-从句在句中能充当主 语、宾语、表语、同位语和形容词宾语,例如: 主语:That he is still alive is sheer luck. ...
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引导名词性从句的连接词
2023-12-07引导名词性从句的连接词可分为三类: 连接词:that,whether,if 不充当从句的任何成分) 连接代词:what, whatever, who, whoever, whom, whose, which. 连接副词:when, where, how, why 不可省略的连词:1. 介词后的连词...
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名词性从句
2023-12-07在句子中起名词作用的句子叫名词从句 (Noun Clauses)。 名词从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,因此根据它在句中不同的语法功能,名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。...
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need "不必做"和"本不该做"
2023-12-07didn't need to do表示: 过去不必做某事, 事实上也没做。. needn't have done表示: 过去不必做某事, 但事实上做了。 John went to the station with the car to meet Mary, so she didn...
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It is (high) time that
2023-12-07It is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形,但should不可省略。 It is time that the children went to bed. It is high time that the children should g...
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比较if only与only if
2023-12-07only if表示“只有“;if only则表示“如果就好了“。If only也可用于陈述语气。I wake up only if the alarm clock rings. 只有闹钟响了,我才会醒。If only the alarm clock had rung. 当时闹钟响了,就好了。If ...
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wish的用法
2023-12-071)用于wish后面的从句,表示与事实相反的情况,或表示将来不太可能实现的愿望。其宾语从句的动词形式为: 真实状况 wish后 从句动作先于主句动词动作现在时过去时(be的过去式为 were) 从句动作与主句动作同时发生 过去时过去完成时(had + 过去分词)将来不大可能实现的愿望 将来时...