在生活中增加一些常识英语每日学习一点英语
测一测
I told Sally how to get here, but perhaps I ____（本应该） for her.
A. had to write it out
B. must have written it out
C. should have written it out
知识点解析
谈到情态动词，怎么能少了should，要知道should出现的频率比上次讲过的must还高啊。
今天，让我们来了解should的常见用法，尤其是考试中经常涉及到的用法。
1. should 最常见的意思是“应该，应当”，表示责任和义务。比如：
Parents should educate their children to behave well.
父母应教育自己的孩子要举止端正。
如果每个父母都做到这点，那世界上的熊孩子会少很多吧。
2. should 还可以用于推测，意思是“应该”。比如：
就像最近的世界杯比赛，在德国队和韩国队比赛开始之前，绝大部分人都认为：
Germany should win this match.
德国队应该能够打赢这场比赛。 (come on, 德国队可是卫冕冠军啊)
然而......
3. should 还经常用于完成时态，构成“should (not) have done”的结构，意思是“本应该（本不应该）做某事”。比如：
You should have come earlier.
你应该早点到。（实际情况：但是你却来晚了）
I should have written to her.
我本应该给她写信。（实际情况：但是我没写）
4. should 还能表示“万一…的话，如果…的话”，用于假设某种情况发生。比如：
If you should change your mind, do let me know.
万一你改变主意，一定告诉我。
5. should 还可以表示“竟然”，用于让人感到意外和惊讶的场景。比如：
It's so unfair that she should have died so young.
她年纪轻轻就去世了，真是不公平啊。
好了，今天关于should的讲解结束了，大侠们快去答题吧～
小练习
It's nearly seven o'clock. Jack _____ be here at any moment.
A. need
B. should
C. needn't
This printer is of good quality. If it ______ break down within the first year, we would repair it at our expense.
A. should
B. could
C. might
With hindsight(后见之明), I ______ taken the job.
A. should
B. should have
C. need
考试真题
在近几年全国和各地中高考、CET4、CET6和考研试卷中，
情态动词should高频出现, 以下是几个例子：
You can’t imagine that a well-behaved gentleman should be so rude to a lady.
Oh, I’m not feeling well in the stomach. I shouldn’t have eaten so much fried chicken just now.
They should not look down upon the guy.（CET-6 2014年12月）
