commit murders 进行谋杀，犯杀人罪

1). 一个月内发生了3起凶杀案。_______________________________

2). He murdered his wife with a knife.

5. chase: follow 追捕

在外面的院子里, 孩子们叫喊着, 互相追逐。

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chase off: 赶跑

这个老人用棍子赶跑了所有调皮的男孩。

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chased after sb./sth. 追逐，追赶，追踪，追求

chase sb./sth. away/ off/ out 赶走，驱逐

chase about 到处飞奔 chase down 努力寻找

chase one's dream 追求个人梦想

Why do people ___ material possessions?

A. chase away B. chase after C. chase about D. chase down

6. burn out vi. 燃尽 烧完自灭

vt. burn sth. out = sth. be burnt out 被烧空, 烧毁

burn oneself out = be burnt out 精力耗尽 ;身体搞垮

burn up 烧起来 旺起来

2). 蜡烛已烧尽____________________________________

3). 他要是继续这样拼命，就会累垮的。__________________________________

4). 把这些木头放在火上使它烧起来___________________________________

burn out /off 烧光 burn down 烧毁 burn to the ground 烧成平地

5).The hotel was ________________in the big fire.

6). The wooden house was _____________.

7). If you want to study well , you should burn your boats.

搭配：breathe in ________ breathe out ____________

The doctor told me to breathe in and then breathe out slowly.

拓展：breath n. hold one's breath __________ out of breath ____________

8. contrast vt. 对照，对比 contrast A and/with B

1). 这首诗对比了青春与年老。________________________________

　搭配：contrast with

2). 她的行动与诺言相差甚远。__________________________________