建议大家读读刘老师的文章,写的非常好,概括的很全面。可以回答所有这方面的问题。刘老师文章要点概述:1. there be 结构的非谓语形式,本质上是带有自己逻辑主语的非谓语动词短语。2. 不定式 there to be 还是 for there to be 取决于在句中做什么成分。(1) 作复合宾语用there to be。there 是形式宾语,to be 是宾补,后...
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1. to plow the field 是 use machines 的目的状语, 不是原因。2. show sb sth 或 show sth to sb 这里 show 是双宾语动词。直接宾语在前时,间接宾语用介词 to 引出,语法上是状语,逻辑上是间接宾语。因此,既不是目的,也不是原因。for...是 show 的原因状语。
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灯在闪烁,用的是过去时。which had got mad. 之所以用过去完成时,是因为系词get指的是变坏。这个时候是坏的,一闪一闪的,变坏是在这个时候之前发生的,所以要用过去完成时。如果系词不是get,而是be,就用一般过去时了。traffic lights which were mad.
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这个should叫作推定式should(putative should)。是动词原型式虚拟语气的替代形式。suggest做建议讲的时候,其后的that从句要用动词原型作谓语。后来又出现了should do这种形式替代动词原型。二者都是虚拟语气,表示从句描述的未必是事实。if真实条件句在最早的时候也是要用动词原型的,后来又出现了should do的形式,都是...
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For this novelist whose personal obscurity was more complete than that of any other famous writer was always quick to insist on either complete anonymity or on the propriety of her limited craft , her delight in delineating just "3 or 4 Families in a Country Village."For:并列连词表示原因,...
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On one hand, it is true that the volatility of any crop is as sensitive to the weather as is the quality of the air we breathe.这句句子简化以后就A is as sensible as is B. As is B为比较状语从句,as在从句中作表语。由于主语较长,系词be就和主语倒装了。这种情况在书面语种是比较常见的。倒装的结果避免...
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Lily walked in the forest with great caution for fear that she might be attacked by a/the giant snake. Lijy walked cautiously in the forest so that she should not be attacked by the/a giant snake. Lily walked very carefully in the forest in case a/the giant snake might attack her.小...
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Another device, called Scentee, plugs into a smartphone.plug单独使用是个及物动词。但plug into是个短语动词,这时的plug可以是及物动词也可以是不及物动词,into是个介词。因此,可以用于A plugs into B这样的用法,表示电器或设备连接在一起。如朗文词典的解释和例句所示。《朗文词典》plug into: phrasal verbplug (...
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nor既可以用作并列连词,也可以用作副词。因此,在表示“也不”这个意思时,其前用不用and都可。英国英语用and的情况多一些。这与so不同。so表示“也”的时候只是副词,其前必须用and或分号,要么另开一句。
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