几个英语选择题，求高手解答！我不是初学者，不要拿你猜的答案糊弄我！
A.but B. since C. and D. before
我认为选B，翻译成“既然”，不知道对不对？
2. _______you've got a good chance, you might as well make full use of it.
A.Now that B. After C.Although D.As soon as
我认为选A，“既然”
3._______the days passed by, his health got better and better.
A.With B. Since C. While D. As
我认为选D，“随着”，但不知道为什么不选A？
4. The first thing I want to do is _________
A.visit to him B. to visit him C. visiting him D.visited him
我选的B。但是觉得C也对，毕竟动词不定式和动名词都可以做表语。
5. His duty is _________(save) people. 到底to save和saving哪个对啊？ 展开
1. Why do you want to change your job 【since】you 've got such a good one?
既然你已经有一个这么好的工作，为什么还想换呢？
2but但是，表转折；and和表并列；before“在...之前”，作时间状语
2.【Now that】you've got a good chance, you might as well make full use of it.
既然你有一个好机会，你应该充分利用它。
3.【As】the days passed by, his health got better and better.
随着时间的推移，他的身体健康日益下降
as 是连词可以加句子，而with是介词只能加非谓语，应该是：with the days passing by.
4. The first thing I want to do is 【to visit him】.
虽然说不定式，动名词都能做表语，但是to do 多有将来之意，表示要发生的动作，和可能性。
5.His duty is 【to save】people.
这个也是不定式作表语，但是含有一层目的之意。
希望能够帮到你
2。也对
3。因为句中有谓语动词passed说明此句为从句要用引导词，而with 是介词不能引导从句。所以用as引导时间状语从句，句子意思是随着日子一天天过去，他的健康状况越来越好。如果选A with要改为 with the days passing by, his health got bette and better.
4。 这句是说你想要做的事但还没做所以用不定式做表示。因为动名词做表语只表示一贯性经常的动作。如这句用它 my job is teaching . 所以这句你只能选B. to visit him
5。 to save在duty这个词上通常选不定式做它表语。
2.选择和释义都正确；
3.选D正确，as引导的时间状语从句；
with不能引导时间状语从句，一般与非谓语动词组合成伴随状语，此时正确用法应为：With the days passing by, his health got better and better.
4.选B正确，不定式短语做表语；
至于C的用法也对，但从句意来讲，to visit him有打算、将要、的意思在里面，而visiting him则表示正在进行或经常性的动作在里面，这是又不定式和动名词的不同特性决定的；
5.填to save，不定式表目的、具体和将要发生的事
4题和5题参考下下面内容吧：
动名词与不定式的区别：
动名词表达的是： 状态，性质，心境，抽象，经常性，已发生的
不定式表达的是： 目的，结果，原因，具体，一次性，将发生的
谢谢采纳~
1. Why do you want to change your job _____you 've got such a good one?
A.but 『B. since』 C. and D. before
since +从句表示“本以为。。。”“本来。。。”
2. _______you've got a good chance, you might as well make full use of it.
A.Now that B. After 『C.Although』 D.As soon as
although，尽管你现在抓住了一次好机会，（但）你也要好好利用。 as well 是也。。。的意思；如果是now that 是表因果关系（通常结果在先，原因在后。）你抓住的一个好机会，因此（也）要好好利用。逻辑上讲不通。
3._______the days passed by, his health got better and better.
A.With B. Since C. While 『D. As』
as the days go by。。。固定搭配。
4. The first thing I want to do is _________
A.visit to him 『B. to visit him』 C. visiting him D.visited him
5. His duty is _________(save) people. 『to save』
这两道题是同一类型，用 to do 不定式。
如果是ing形式，应该为：
Saving people is what his duty is；
Visting him is what my first thing to do.
『是答案』希望能帮到你！！！
A, 既然, might as well=you'd better,是更委婉的说法
D, as是连词, 后面加句子, with是介词, 后面加名词短语with the days passing by...
B, 这个我解释不清楚, 老外就是这么说的
跟第4个一样, to save, 解释不清
