I.重点单词：
1. type
2. salary
3. earn
4. percentage
5. vary
6. charge
7. item
8. figure
9. addition
10. confuse
11. property
12. fund
13. department
14. complain
15. program
II.重点词组：
1. be sure of
2. consist of
3. vary from…to
4. be similar to
5. in addition to
6. tend to
III.重点句型和常考句子：
1.…spend + （时间、钱等） on sth.在…上花费时间、钱等
…spend + （时间、钱等） in doing sth.花费时间、钱等做……
They say that it spends too much on useless and impractical programs.（L35）他们说政府在一些没有用处的、不切实际的项目上花钱太多。
操练：
1）妈妈说他每天花太多的时间看电视。
Mother said that he spent too much time （in） watching TV every day.
2）昨天我买这些书花了5美元。
I spent $5 on these books yesterday.
2. Taxes consist of the money which people pay to support their government. （L5）
3. The percentage varies from person to person. （L11）
4. With the high cost of taxes， people are not very happy on April 15， when the federal taxes are due. （L14）
5. Other states have a sales tax ， which is a percentage charged to any item which you buy in that state. （L20）
6. Although Americans have different views on many issues， they tend to agree on one subject： taxes are too high. （最后一行）
