求英语好的帮我分析一下句子成分。

Question

…yield hazardous effects on … 这个是老师留的一个半截句子，是词组还是什么东西我没看懂= =
It is generally held that environment exercises profound impacts on one’s personality.这里exercise是怎么用的求解。
Many people believe it is not fair to limit freedom and to damage the atmosphere of free expression of ideas just for the safety of children.这个求分析成分，完全没读懂。
Whether international tourism enhances mutual understanding between different peoples or increases tension between nations has become a very controversial issue这个也求分析成分，另外那两个different为啥不用among？

在线等》⊙﹏⊙《

Answer 1

1、It is generally held that environment exercises profound impacts on one’s personality.这里exercise表示施加（影响），你也可以用has
2、Many people believe it is not fair to limit freedom and to damage the atmosphere of free expression of ideas just for the safety of children.
这个句子是这样的：（Many people believe it is not fair）许多人认为一件事是不公平的。什么事呢？这里的It指代的是后面的整个句子。（ just for the safety of children）为了孩子的安全，（to limit freedom and to damage the atmosphere of free expression of ideas）限制自由并破坏自由发表言论的氛围
3、between主要强调两两之间。追问

第一句您能解释下么？

追答

yield hazardous effects on
表示对xx产生严重的影响

不清楚的继续问哦！