Question

请问选哪个？谢谢

①Because of air pollution being greatly reduced, this city is still ______ .
A. a good place in which to live B. a good place to live C. a good place to live in D. good in living in
②To get an education, ______ .
A. one must work hard B. working hard is one of the important requirements C. requirement is needed to work hard D. working hard is needed
③The professor knows this subject, but he has trouble ______ his ideas across to the students.
A. making B. setting C. to get D. getting
④I'll have him ______ at once.
A. to do it B. that he will do it C. doing it D. do it
⑤One of the properties of light is ______ travelling in wave form as it goes from one place to another.
A. it B. it's C. its D. their
我想问为什么来着,忘问了,请解释

Answer 1

1C考查不定式做定语。
不定式如果是不及物动词或者不定式所修饰的名词或代词是不定式动作的地点、工具等,不定式后面须有相应的介词。例如:
　　 The chair looks rather hard, but in fact it is very comfortable to ________.
　　 A. sit B. sit on C. be seat D. be sat on
　　 【解析】如果不定式为不及物动词,其后应加上相应的介词。故答案为 [B] 。

2.A 非谓语动词作状语，其逻辑主语与主句主语一致。本句不定式的逻辑主语为人
3.D have trouble( in)doing sth 做某事有麻烦
4.D have sb do sth叫人做某事（具体某一次）
5.C物主代词

Answer 2

B B D D C

Answer 3

不爱学习的孩子。只问答案，不问为什么。建议大家还是不要回答了。

追问

我主要还是想听‘为什么’，只是我昨晚太急忘了问，请帮忙选择并解释