今天我们学习的语法是：
after， afterwards（副词）
1.after是介词，后面必须接名词、代词或动名词：
Don't bathe immediately after a meal／after eating．不要饭后／吃饭后就游泳。
Don't have a meal and bathe immediately after it．不要就餐之后立即游泳。
2.如果我们不想用名词、代词或动名词，就不能用after，但可以用 afterwards（= after that）或者 then：
Don't have a meal and bathe immediately afterwards．（译文同上）
They bathed and afterwards played game／played games afterwards．／ They bathed and then played games．
他们游了泳，然后做游戏。
3.afterwards可以位于句首或句末并且可以由soon，immediate-ly，not long等修饰：
Soon afterwards we got a letter．不久之后我们收到了一封信。
We got a letter not long afterwards．（译文同上。）
4.after也可以作连词用：
After he had tuned the piano it sounded quite different．
他给钢琴校过音之后，钢琴的声音完全不同了。
练习：
1.Mr.Smith left for London ___ breakfast. 史密斯先生吃过早餐后就动身去伦敦了。
2.Soon ___ he made his first public statement about the affair.
不久以后，他第一次就这一事件发表了公开声明。
3.His heart stopped beating and he died soon ___.
他心脏停止了跳动, 随即死亡.
答案：
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