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素能提升演练（二十）
必修4 Module 2
Ⅰ. 单词拼写
1. The exhibition provided many companies with an opportunity to _______ (展示) their latest products to the consumers at home.
2. China’s launching its Tiangong-1 means that it has the ability to _______ (探索) space.
3. His house is _______ (方便的) for several schools.
4. All the countries are making an effort to find a practical _______ (解决方案)to the challenge they are facing.
5. Effective measures must be taken to _______ (限制)the carbon dioxide emission from cars.
6. Nail biting is often an unconscious _______ (反应)a child has when he or she is anxious or shy.
7. It is difficult to predict his reaction because he is so _______ (喜怒无常的).
