:2020学年九年级英语单元知识点 Unit12 Life is full of the unexpected

2020学年九年级英语单元知识点 Unit12  Life is full of the unexpected

Sention A

1。by the time

到……时为止，在……以前

引导时间状语从句

从句为一般过去时，主句用过去完成时

eg： By the time I got home，my mother had cooked dinner。

主句为一般将来时，从句中用一般现在时表将来

eg： He will be a teacher by the time he is twenty。

2。go off

(警报器等)突然发出巨响

eg： My alarm clock didn't go off this morning。 I was late for work again。

(电灯)熄灭

eg：Suddenly the lights went off。

(食物)变质”

Meat goes off quickly in hot weather。

3。rush out

从……冲出去

eg：He caught up his hat and rushed out。

常用短语

rush hour 高峰时间

the Christmas rush 圣诞节前的忙碌

4。give sb。 a lift

捎某人一程

=give sb。 a ride / give a ride to sb。

eg： I'm a little late。 Can you give me a lift， Dad?

give sb。 … 的结构

give sb。 a hand 给某人帮忙

give sb。 a ring 给某人打电话

give sb。 a lesson 给某人一个教训

give ab。 a chance 给某人一个机会