Question

高中英语情态动词选择题，求详细解释

What a pity!Considering his ability and experience,he_____better.
A.need have done B.must have done C.can have done D.might have done
My newly-bought cell phone isn't in my bag.Where____ I have put it?
A.can B.must C.should D.would
The biggest problem for most plants,which____just get up and run away when threatened,is that animals like to eat them.
A.shan't B.can't C.needn't D.mustn't
English is a language that many people around the world__not speak perfectly but__at least understand.
A.would...might B.will...must C.might...could D.can...may
---Would you go out for a walk with me ?
----No,I__.My girl friend is coming.
A.wouldn't B.shall not C.won't D.shouldn't

Answer 1

1、选择B
分析如下：
A、 need have done　本需要做（而事实上没有做）
B、must have done 对过去的事情的推测
C、can/could have done 表推测一般用在否定句和疑问句中，表示不相信或怀疑的态度。
D、might have done　本可以做而没做 本来应该（用来表示一种责备）
2、A
can/could have done 表推测一般用在否定句和疑问句中，表示不相信或怀疑的态度。这里是疑问句
should have done 表示“过去本应该做某事却未做。”
3、B can't 表示不能生长

Answer 2

1. D  真是遗憾啊！要是按照他平时的水平和能力，他应该能做得更好。 A本需要做得更好，题意不符。B是对过去的肯定猜测，用在此处也就是说他已经做好了，然后猜测他一定能做好，C应为could、

2. C 只有should 可以表示猜测语气、强调语气，我到底把它放哪了？

3. B 对于植物最大的问题是被动物吃掉，以为他们面对威胁时《不能》站起身来跑掉、

4. C might not ...but 可能不，可能世界上很多人不能流利的讲英语，但至少可以听懂。

5. B would you  提问，一般用 shall not 回答、

   望采纳，谢谢！

Answer 3

B C B 都是虚拟语气呀。第一个“他应该可以做的更好”，事实上他没有做到。第二个“我可能把它放到哪里了呢”。
C D