易考题

Statements：

The train should have left an hour ago. Look! It is already 8 o’clock.

The train is supposed to start at 7 o’clock.

The speaker is an hour late.

The train left an hour earlier.

It’s at 9 that the train must leave the station.

正确答案：a

解析：这句话的考点在于should have left这个短语，意思为本该离开，should have done是指本该怎么样子，原句的意思是火车本该在一小时前就开了，然而现在已经8点了。因此选项中只有第一个选项符合原句的意思。

易错题

Spot Dictation:

Many psychologists studying IAD find that one of the biggest problems is that ____________ spend more time establishing electronic relationships than human ones.

正确答案：Net-surfers

解析：这个空本身不难填出，但是很多同学会疏忽大写，所以同学们应该联系上下文，注意一些特殊的名词，避免着一些比较低级的错误。