写出一个图象位于第一、三象限的反比例函数的表达式：______．

根据语境，写出单词的正确形式。

1. People in Japan speak J            .

2. The moon goes around the e            .

3. The surface of lakes is s             than that of oceans.

4. A s             is a part of ocean.

5. A v             is smaller than a town. And a town is smaller than a city.

6. We all know that Dong Cunrui and Huang Jiguang are h            .

7. An i             is a place with water around it.

8. Rubbish is the same as g            .

9. Agriculture is about g            plants for food.

10. Water is a liquid and ice is a s            .