人遗憾地→unfortunately adv.不幸地，令人遗憾地

　　7．survive v．活下来；幸存→survivor n．幸存者→survival n．幸存；活下来

n.＋­ous→adj. v.＋­ment→n. mystery→mysterious神秘的

fame→famous著名的

nerve→nervous紧张的

danger→dangerous危险的 move→movement动作，活动

measure→measurement n．量；测量

develop→development n．发展；培养

agree→agreement n．协议；同意 　　Ⅲ.补全短语

　　根据提示补全下列短语

　　1．manage to　　　　　　 设法完成

　　2．the solution to ......的解决方案

　　3．when necessary 有必要时

　　4．cut down 减少；砍倒

　　5．lead to 通向；导致

　　6．feed on 以......为主食

　　7．in serious trouble 遇上严重麻烦

　　8．once again 又一次

　　Ⅳ.选词填空

　　选用上面短语的适当形式填空

　　1．How did the mother with 3 children manage to keep her home clean and neat?

　　2．Lack of exercise can lead to feelings of depression and exhaustion.

　　3．We found silkworms feed on the leaves of mulberry.

　　4．We are constantly being reminded to cut down our fat intake.

　　5．You will have to tell him the truth when necessary．

　　6．Let me remind you once again so that you won't forget.

cut＋prep./adv.→动词短语 "导致"汇总