1.When ___ , ice change into water.
A.to heat B.heating C.heated D.they are heated.
我分析的是:应该是冰被加热,所以排除AB D项为什么不对我不知道 求解 但是我觉得是分词作状语(是不是条件状语)所以就选C 另外再问下如果把B项改为 being heated是不是也是对的?
答:when heated 在这里=when it is heated, ice为不可数名词,不能用they来代替。
When being heated =when it is being heated, 强调在加热的过程中,与现实情况不符,因为
2.___ his telephone number,she had some difficulty getting in touch with Bill. 冰变水有一定的延缓。用一般现在时,只表示被动,不表示进行,是一客观的现象。
A.Not knowing B.Knowing not C. Not having known D.Having not known
这题因为not的位置错了 一下就排除BD 答案是A 但是我感觉C也对啊 也可以理解为know表示的动作在主句动作之前所以用完成时啊?求高手解答
答: know与get to know不同,是一心理活动, not knowing sth. 是一种状态,不是一个动作。这个状态是伴随主句的动作同时发生的。have known sth. 一般与一段时间连用,表示“认识(某人)或知道某事,已经有多久了。
此题句相当于:Becasue she didn't know his phone number, she had some difficulty getting in touch with Bill. 由于她不知道他的电话号码,她与比尔的联系遇到一些困难。
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