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课时达标自测
Ⅰ. 单词拼写
1. As Chinese _______ (公民), we should try our best to improve the environment.
2. Bikes are very popular in China. Many prefer _______ (骑自行车)to work.
3. Scientists have been trying to find ways to _______ (预报)earthquakes.
4. The increase in the population of plants can stop the process of _________ (沙漠化).
5. It’s _________ (可怕的)to be outside in a sandstorm.
6. There’s a lot of _______ (尘土)on the floor.
7. I don’t have the _______ (力气)to climb any further.
