1 . —旦年轻一代断绝与传统的社会联系，保持这种健康的生活方式会变得困难。(once, reject) （汉译英）

2 . In short, ________, we need to stop destroying the planet that we live on and start to protect it. （根据课文内容填空）

3 . 选择正确的短语的正确形式填空，有两个是多余的。

on behalf of,   take up,   make sense,   get on,   drop out,   boil down to,   apply oneself to

1. It ________ to buy the most up-to-date version of dictionary
2. If you ________ the job in hand, you'll soon finish it.
3. The advice that they gave him ________ this: he should take care of his own health.
4. Politics is seen as a man's world. It is very difficult for women to ________.
5. The table ________ too much room, you should have bought a smaller one.

4 . If today is anything like yesterday, it will be full of sweat and hard work as I hike over this difficult land to my destination on the other side of the valley.   (英译汉)