问题 不定式做形式主语

It, therefore, is necessary to stop frequently and sanitize low - temperature evaporators, and where sterile concentrated food are required, to resort to an additional preservation. It 是形式主语，两个不定式to stop frequently and sanitize low - temperature evaporators, and wheresteri...

问题 怎么从形式和意义上分析这句话呢

1. Global climate warming has led to increased hurricane, drought,and flood, to reduced crops production, and to other problems . a. and flood, to reduced crops production, and to other problems b. and flood, to reduced crops production, and other problems

问题 如何理解tore to pieces the half-finished creature

Trembling with anger, I tore to pieces the half-finished creature.老师，Trembling with anger是伴随状语，后面是否应该理解为I tore the half-finished creature to pieces. tear的动词用法有点特别，可以说He tore the letter？后面要加状语或表动作结果的...

问题 语法分析

...一句话：When the woman shook her head in bewilderment, Harry went on to explain that ‘’Myrolite" was a hard, amber-like substance which could be used to remove freckles. 这句话的语法分析是不是如下？主从复合句主句：主语 Harry,  谓语 went on， to explain that 及后...

问题 ought not to have done 和 could not have done 特定情况下的区别

... the help, we couldn’t have couldn’t have suffered a loss.A. ought not to have suffered B. couldn’t have suffered C. shouldn’t suffer D. couldn’t suffer字典上ought to有这样一个解释：used to say what has probably happened or is probably true,例句是If he started out at nine, he...

话题 sb was said to have done

话题 go(get) back和back to区别

话题 they went back home to America.

话题 turned their focus to public education

话题 to some extent 做插入语的位置

话题 There is no subject to which

话题 waiting to be discovered这里做什么状语？

话题 at a loss what to say

话题 be able to后面不能接被动式

话题 The bride to be is Mary