1 . 根据句意，选择单词或短语并以其适当形式填空。

crime     greed     commit     appreciate     optimism     consume     react     expose     dust     urban     terrify     restrict

1. The laws have led to a reduction in fuel ________ in the US.
2. London was hot and________.
3. Her husband faces various ________ charges.
4. I am ________of her kindness.
5. The government has agreed to lift ________ on press freedom.
6. The experts are ________ that we will succeed.
7. ________ would announce that peace was at hand.
8. Many people in China have limited ________to English. That makes it extra hard to learn and practice it.
9. When you express gratitude, you show your love and________.
10. The________boy ate up all the food remaining on the table.
11. This chemical________generates a lot of heat.

2 . 词性转换
1. crime n.罪；罪行→________adj.犯罪的；犯法的 n.罪犯
2. greed n.贪婪；渴望→________ adj.贪婪的；贪心的→________adv.贪婪地
3. commit v.犯(错误或罪行)→________ n.许诺；承诺；投入；奉献→________n.委托；佣金；服务费→committee n.委员会
4. appreciate v.欣赏；赏识→________ n.欣赏；感激→________ adj.感激的；赏识的；有欣赏力的
5. optimism n.乐观；乐观主义→________ adj.乐观的；乐观主义的→________ adv.乐观地
6. consume v.消费；消耗→________ n.消费者→________ n.(精力、油、电等的)消耗量
7. react v.(作出)反应→________ n.反应→________adj.有反应的
8. expose v.使暴露(于险境)→________ adj.暴露的；无遮蔽的；无保护的→________n.暴露；显露
9. dust n.尘土；沙尘→________ adj.布满灰尘的
10. urban adj.城镇的；城市的→________adj.郊区的；城郊的→suburb n.郊区
11. terrify vt.使害怕；使恐慌→________adj.非常恐慌的；极度恐慌的→terrifying adj.极其可怕的；骇人听闻的
12. restrict .vt.限制 ________.n 限制

3 . The temptation of money is strong for those who are g________ for wealth, but weak for those who regard material wealth as dirt. (根据首字母单词拼写)