2014辽宁高考英语完形
could为什么不能被might替换 展开
在本句中,I 是可以明确感知她的愤怒的,只能用Could。might 的程度太轻。
关于could 和might 的用法一下给出详解:
用于疑问句表示请求时,一般只用Could,且可用于各人称。如:
Could you help me explain the difference between "might" and "could"?
Could I use your mobile phone a little while?
上句可用May代替:May I use your mobile phone a little while?
用Might也是可以的,但不常见。
2. could和might都可用在条件句中,表示假想的情况。表示“本来会、本来可以/能够”。例如:
If you tried you could/might do the work better. 如果你试试的话,准能把那项工作干得更好。
You could have met her if you had gone that way. 如果你走那条路的话,你准能遇见她。
此句中的could如改成might则表示:……,你也许能见到他。
They could/might have worked it out if they had asked me for help. 如果他们来向我求助的话,他们本能够做出来的。
He could/might have give the answer, but he refused to. 他本来能够回答的,但他拒绝这么做。
You were stupid to go skiing there — you could have broken your leg. 你真笨,竟会到那地方滑雪。你本来会摔断腿的。
上面的例句中用might则因其语气较轻而语意效果不甚理想。
在此场合,could和might的区别是could较might的可能性强。
3. couldn't be + 比较级句型不能用might代替。如:
Their lifestyles couldn't be more different. 他们的生活方式极为不同。
4. could和might都可用在表示“结果”的状语从句中,同样,could语气较重些。例如:
He expressed his ideas clearly so that the average person might understand. 他把他的意思清楚地表达出来,以便一般人能听明白。
5. might as well表示“不妨、可以、倒不如”,此时的might是不能用could代替的。例如:
We might as well look for some food now. 现在我们不妨找些吃的东西。
I expect I might as well be going. 我希望我可以走了。
Since it’s a fine day we might as well walk. 既然是一个晴朗的天,我们不妨步行。
We might as well have gone home as you suggested. 我们还不如按你建议的回家去呢。