问题 be good for sb to do与be good for sb doing的区别

Be good for 加 to do 与 be good for 加 doing 的区别是什么？

问题 While his identity has yet to be released中has yet怎

While his identity has yet to be released.虽然他的身份尚未公布。这句话为什么是否定的意思？has yet什么词性作什么成分？为什么不是hasn't been released?

问题 关于There is difficulty to do/in doing sth的用法

Though there were great difficulties _______, he never gave up.A. in overcoming   B. to overcome答案是选不定式(B)，但为什么不能选 in doing sth (A)呢？英语不是有一个句式是 there is some difficulty (in) doing sth 吗？

问题 You should all be helping each other to improve为啥用be helping

You should all be helping each other to improve.为啥用进行时be helping，还有all为啥放在be动词前面？

话题 don't have to do和needn't do的区别

话题 to feel that you are useful不定式句中成分疑问

问题 damage的单复数与修饰语问题

The storm has caused _____ to this region.A. many damages      B. much damagesC. much damage        D. few damages正确答案C，我选的是B。老师为何 B 不正确呀？烦请指导。谢谢。

问题 时间和条件状语从句用现在完成时

...不能直接用一般将来时。如：If you don’t go, I will not go either. 你若不去，我也不去。When it gets warmer the snow will start to melt. 天气变暖时，雪开始融化。但有时从句可以用现在完成时，能请老师讲讲这方面的用法吗？

问题 可以直接用动词原形作系动词be的表语吗

可以直接用动词原形作系动词be的表语吗The last thing we wanted to do is cause her any more hardship and emotional turmoil.这里为什么cause是原形？

问题 介词短语用法疑问

The requirement that children go to school for about six hours a day, 180 days a year, for about 10 years,  whether or not he learns anything there,  whether or not he already knows it or could learn it faster or better somewhere else,  is such a gross violation of civil liberties.老...

问题 all this与all thes如何区别和理解

In addition to all this there was evolved the theory that light is an electromagnetic disturbance.句中all this 如何理解？ 为什么不是all these ? 既然用了all, 为什么后接this, 而不是these呢？

问题 desire 后面的that从句是同位语从句还是主语从句

It is our desire that every effort should be made to protect the environment.这句话是主语从句还是同位语从句？类似的句子如何判断？

问题 deny放句首的倒装问题和词的用法

Deny law enforcement the ability fully to investigate a terrorist attack that killed 14, or……要么拒绝为执法部门提供协助，对一起造成14人死亡的恐怖袭击进行全面调查；要么……本句deny是倒装？怎么理解这个词在本句的用法？？

问题 worry about being late对吗

...好！今天读到的一个句子让我认识到我对worry about有误解:The next technique is to write your draft rapidly without worrying about being perfect.显然，worry about指的是担心后面的名词 向不好的方向发展。那么，下面的表述正确吗？Worry about being late...

问题 有more and more修饰问题

... on child safety public policy, said: "We're hoping that this will give us the ability to detect and remove more and more quickly."这句话的remove more，移出更多的意思吗？后面为什么要加and more quickly不加这个and可以吗？还是more and more修饰这个quickly?