题目内容：

根据汉语提示及首字母，写出所缺单词。

1.The sun p__________ us with light and heat.

2.According to the new law, smoking is f_________ in offices.

3.He b_______ down and picked up the books lying on the floor.

4.Without protection, some animals will be e_________ in the near future.

5.He has to work hard to make enough money to s___________  such a big family.

6.They watched the train until it  ____________ (消失) at last.

7.__________（自然地）, we get upset when things go wrong.

8.There are probably lots of strange _______（生物） in that lake.

9.It’s _______(冒险的)to take the medicine without reading the instruction.

10.Students should be helped to adopt a _______(正面的) attitude to the life and learning.