(1)may/might (just) as well“不妨，最好”，與had better相近。如：
Since the flight was cancelled, you might as well go by train.
(2)cannot/can’t…too… “越……越好，怎么也不過分”。注意這個(gè)句型的變體cannot…over…。如：
You cannot be too careful gydjdsj.org.cn when you drive a car.
The final chapter covers organizational change and development. This subject cannot be overemphasized.
(3)usedn’t或didn’t use to為used to (do)的否定式。
(4)should 除了“應(yīng)該”一層意思外，考研大綱還規(guī)定要掌握其“竟然”的意思。如：
I didn’t expect that he should have behaved like that.
