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Ⅰ词汇运用：（２０）
(一) 根据句意及首字母完成单词
1. Now it gets warmer and warmer because the p___ is getting more serious.[来源:学_科_网]
2. We should do something for e______ protection, so that we can protect the earth.[来源:学,科,网]
3. It is h_______, although we do something to make it better.
4. We should r_______ waste and save energy.
5. This is a  s______ question. I can answer it easily.
6. Do you know the d_________ between the Internet and the World Wide Web?
7. We should buy  p_______ made in China.
8. Don’t do h_________ to the environment.
9. It’s n_________ to protect our earth right now.
10. W_________ you come here, I’ll invite you to my home.