2 . Nuclear technology is a double-e_________ sword, which can do great harm to human beings as well as bring great benefits.(根据首字母单词拼写)

3 . What a terrible snowstorm! Which of the following words is formed in the same way as the word “snowstorm”?

A．careless

B．railway

C．unhealthy

D．tourist

6 . 阅读下面短文，分析并写出加黑单词的构词法。

Last weekend     1    , I was traveling home from business. It was too late, so I decided to go to a hotel near the bus stop. At the entrance to the hotel, I met a man who was disabled    2    , and I made up my mind to offer him some help. He spoke to me and explained his past life when he was healthy     3    . He had worked in a car factory for five years. Then an accident left him disabled. While listening to his story I realized that he had experienced     4     a lot in his life. I told him that although he was physically     5     disabled, his heart was strong, and he could always depend on it. I offered him some money to buy food and drinks     6     and then he went home. I have learnt that if you say a few good words and offer a little help to others, it will not only bring happiness     7     to you, but it will also be in people’s hearts forever.

7 . 从下面两组单词中各选择一个单词合成一个新单词(每个单词限用一次)
sun, free, worth, child, over, through, pan, down, space, world
ship, way, come, light, hood, out, town, cake, wide, while

8 . If you have been working hard, don’t be afraid to take a break and give yourself a well-_____________ (deserve) pat on the back or to reflect on your goals. (所给词的适当形式填空)

10 . 写出正确的单词和词义
1. mass+ive=adj. ________
2. art+ist=n. ________
3. clean+up=n. ________
4. dis+appear=vi. ________
5. foot+print=n. ________