问题 join the expedition还是join in the expedition

He’s still hesitating about ______ the expedition. A. joining   B. joining in请问如何选择？join the expedition还是join in the expedition？

问题 英语可以说 so as for sb to do sth吗

当主句与从句主语相同时，so that可以换成so as to do sth。如：He studied hard so that he could go to college.= He studied hard so as to go to college.但如主句与从句主语不相同呢？so that可以换成so as for sb to do sth。如：He worked hard so that his family could l...

问题 at the library 和 in the library 的区别

请问：at the library 和 in the library 有区别吗？谢谢！

话题 the key to the door

问题 appeal的用法问题

They can resist appeals to their dearest prejudices and all kinds of compliments.这里的appeals答案翻译是打动启发的意思 可我觉得这个解释很牵强 查了一下柯林斯appeal作名词并没有这个意思 请老师解答, 谢谢!

问题 独立主格结构的习惯用法

有些分词短语可以独立存在，那这些分词短语后面加什么呢？比如：judging from, talking of, considering/given, regarding, providing/provided/supposing, including, seeing that, 这些后面是都可以加从句或是短语吗？

问题 why可以充当主语成分吗

This mountain is full of mysteries, like why is my head falling on your shoulder.这里的why是充当介宾主语成分吗？ 

问题 有介词+ as的定语从句吗？

Don't talk about such things of which you are not sure.这个应该就是介词加which吧？

问题 动名词复合结构

请问老师这个looking at them在这里是做什么成分？有点分不清到底是“动名词复合结构”还是“现在分词短语”修饰us，这个到底是要怎么区分，有点混乱They are sending pictures of us looking at them.  

问题 could 表示推测用法的疑问

想请教一下：Many apples fell every day. Everyone /Someone could be hurt because of these apples.这里的could是表示推测吗，翻译成“可能”？

问题 join in the trip还是join the trip

join in the trip还是join the trip，还是两者都可以?

问题 the more the more的用法

…because more people join in, better effectiveness these activities will achieve. 这种句型可以不加the？

问题 cheer the sick girl up还是cheer up the sick girl

请问，是应该说 The teacher cheered the sick girl up, 还是应该这么表达，The teacher cheered up the sick girl.

问题 这里的the same as in the passage怎么理解

Then read the passage to find out if your answers are the same as in the passage.as后面省略了什么呢，as又作什么成分呢？

问题 the following years,the years following等的比较

现在分词做定语可以放在中心词前面也可以后面，这个我理解。但是后面的 the years that followed，关系代词 that 做 followed（follow 过去式）的主语。the following years为什么会等同于the years followed?