Unit 2 How often do you exercise?
【重点句型】
1. I go to the movies maybe once a month.
我可能一个月看一次电影。
2. ——How often does he watch TV? 他多久看电视一次?
——He hardly ever watches TV.他几乎不看电视。
3. ——Do you go shopping? 你购物吗?
——No, I never go shopping.不，我从来就不购物。
4. Here are the results.
下面就是结果。
5. We found that only fifteen percent of our students exercise every day.
我们发现仅仅百分之十五的学生每天锻炼。
6. We all know that many students often go online, we were surprised that ninety percent of them use the Internet every day.
我们都知道很多学生经常上网，我们很吃惊他们中有百分之九十的人每天上网。
7. Although many students like to watch sports, game shows are the most popular.
虽然很多学生喜欢看体育节目，但游戏节目依然是最受欢迎的。
8. It is good to relax by using the Internet or watching game shows, but we think the best way to relax is through exercise.
通过上网或看游戏节目来放松很好，但是我们认为最好的放松方法还是通过锻炼。
9. It’s healthy for the mind and the body.
对思想和身体都很健康。
10. So start exercising before it’s too late!
开始锻炼，为时不晚。
【重点语法】
1. 频率副词: always, usually, often, sometimes, never
频率副词在句中通常放在实义动词之前, be动词或助动词之后。常用于一般现在时态中。
2.“次数”的表达方法
一次 once， 两次twice，三次或三次以上：基数词+ times, 如：three times, five times,
3. how often“多久一次”问频率，回答常含有频率词组或短语。
常见的how疑问词：
1)How soon 多久(以后)
—How soon will he be back?他多久能回来?
—He will be back in a month. 他一个月后能回来。
2)how long “多久”
—How long did it take you to clean the house? 你打扫房子用了多久?
—It took me half an hour to clean the house. 我打扫这房子用了半小时。
3)How many+名复
How much+不可名
“多少” 问数量(how much 还可问价格)
【重点短语】
1. go to the movies 去看电影
2. look after = take care of 照顾
3. surf the internet 上网
4. healthy lifestyle 健康的生活方式
6. keep healthy=stay healthy 保持健康
8. take more exercise 做更多的运动
9. the same as 与什么相同
10. be different from 不同
11. once a month一月一次
12. twice a week一周两次
13.make a difference to 对......有影响/作用
14. most of the students=most students
15. shop=go shopping=do some shopping 购物
16. be good for 对......有益
17. be bad for 对......有害
18. come home from school放学回家
19. of course = certainly = sure 当然
20. get good grades 取得好成绩
21. keep/be in good health 保持健康
22. take a vacation 去度假