题目内容：

单词拼写（共10小题，每小题1分，满分10分）

1.Some metals expand when it is hot and c_____ when it is cold.

2.If you a____ a little salt to the soup, it will taste more delicious.

3.Everyone can get on well with him, because he is easy to________(接近).

4.They are making a _______ (调查） of the population growth of the city.

5.While I was doing my homework, the ______(电） went off.

6.Water is a _______ (液体）without color or taste.

7.Children should be ____(独立的）in doing things and don't always rely on their parents.

8.I______(集中）your mind on study, and you'll make progress.

9.What is the ______(平均的）rainfall for summer in your country.

10.Nowadays many old people don't like living d______ ,for it is very noisy.