give one's life to do sth. = lay down one's life to do sth. 为......献身 for sb./sth. for sb./sth

lose one's life 丧命

【即学即练】

(1) He ______________________ the drowning child. 他为了挽救这个溺水的孩献出了生命。

※devote oneself/one's life to sb/ (doing) sth 献身于... (to 为介词，后面接名词或动名词)

(2) He devoted himself ___________ the environment.

A. to protect B. protecting C. to protecting D. Protect

4. worth （教材P53）

（1）be (well) worth + n. (表价值) 值多少钱

doing 值得做

of sth. 值得......的

(2 ) be worthy + of being done 值得做

to be done 值得做

（3）It's worthwhile + to do sth. 做某事是值得的

doing sth.

【即学即练】

The problem is worthy of being discussed. （改写成同义句）

1. The problem is worthy_____________.

2. The problem is worth ______________.

3. ____ is worthwhile _____________________ the problem.

5. on the spot 在现场

6. come into fashion 开始流行，开始成为时尚

go out of fashion 不再流行，过时

follow the fashion 赶时髦

bring into fashion 使流行

二、 take an active part in... 积极参加

play a/an (important / great ) part/ role in...... 在...中起重要作用

【即学即练】

(1) The Internet _________________________our daily life. （在...中起重要作用）

(2) We should __________________________ school activities. (积极参加)

8. be /get tough with sb 对某人毫不妥协，对某人采取强硬措施

课内探究：质疑解疑，合作探究

句型梳理

1.Although surprised，the poachers had an advantage-there were more of them. (教材P52)

【句法分析】　句中Although surprised＝Although they were surprised是让步状语从句的省略。状语从句的主语同主句主语一致或是it，且从句的谓语动词含be动词时，可将从句的主语和be动词一起省略。

①Although (he is) quite old，he still jogs every day.

②Please lend me a hand if (it is) possible.

③He will not come unless (he is) invited.