Page I
Pages 4-5: 分层作业一：a-c-d-b
分层作业二：
1. Shanghai 2. free 3. best 4. idle goods
5. school 6. clothes 7. over-buying
Page 6:
I. 1-c 2-d 3-b 4-a
III. 分层作业一：
1. is filled with 2. covered; with her hands
3. Not only the old but also the young 4. smell
分层作业二：
1. bad 2. smelly 3. nose 4. tissue 5. sick
Page II
任务型阅读：
1. countries 2. stand at attention
3. independent 4. group 5. fails 6. in a team
7. problems 8. first aid 9. money 10. skills
语法填空：
1. during 2. course 3. movies 4. Americans
5. like 6. are 7. healthy 8. started
9. much 10. noisier
Page III
1-4 CDBC
5. hard 6. stand out 7. role 8. laughs 9. mind
Page IV
Day 1: 1. Six.
2. One year.
3. China’s willingness to welcome more visitors.
4. * It can save time and money for visitors.
* It can help companies have more and easier business trips.
* It can be good for sharing our culture with the world.
5. 但是现在，国内将会迎来更多的外国游客，会有更多来自其它国家的人民体会到中国文化。
Day 2: CCBDB
Day 3: CDCD
Day 4: CCB
Day 5: 1-5 ABCAD 6-10 BADCB
