3.省略表语

She was a lover of sports as she had been in her youth．(had been后面省略了a lover of sports)

她就像年轻时一样是一个体育迷。

You are ready and I am，too．(am后面省略了ready)

你准备好了，我也是。

That means that an apple，a banana，or an orange is a good choice，but a bar of chocolate or a bag of potato chips is not．(人教大纲版高一下第6页)(not后面省略了a good choice)

这就是说，苹果、香蕉或橙子是好东西，而巧克力、炸土豆片不是。