How often do you exercise ? 你多久锻炼一次？

1. How often do you exercise ?你多久锻炼一次？ 初二英语 主讲教师：陆源

2. Topic 主题 • 课余时间的各类活动。 • 　日常活动的频率和次数。 • 健康的生活习惯。 • Grammar 语法 • 由What、How often引导的特殊疑问句; • 表示频率的副词，如often, sometimes, never等; • 表示频率的短语，如once a week, 3 times a day; • 表示不定数量的形容词，all, some, no…。

3. 由what引导的特殊疑问句 • --What do you usually do on weekends? 周末你常做什么事？ -- I often go to the movies. 我经常去看电影。 • --What’s your favorite program? 你最喜欢什么电视节目？ --Animal world. 动物世界。

4. 由how引导的特殊疑问句 －How often do you exercise?　 你多久锻炼一次？ －Three times a week. 一周三次。 how often表示“多长时间一次”，答语常用 always, often等副词，或短语once a day, twice a month, every two days等。 －How many times do you exercise in a week? 你一星期锻炼几次？ －About three times. 大约三次。 how many times表示“多少次”，答语要表明次数，如once, twice，three times等。

5. 频率副词 • 本单元主要学习频率副词的使用。 • 常用的频率副词有： always, often, usually, sometimes, hardly ever, seldom(很少), never, …

6. 频率副词在句子中的位置 • …＋频率adv.＋实义动词v.＋… • …＋be动词＋频率adv＋… • …＋助/情态动词＋频率adv＋实义动词v. 除sometimes外，其它频率副词通常放在： • 实义动词之前、 • be动词之后、 • 助动词与动词之间。

7. 频率副词的比较 always —总是 almost always 几乎总是 usually—通常 often—经常 sometimes—有时 seldom 很少 hardly ever—几乎不曾 almost never 几乎从不 never—从不

8. Section A 课文内容讲解 2a (Page 2) • Activities　活动 • go to the movies　去看电影 • watch TV 看电视 • shop 购物 • exercise 做运动 • read 阅读 • How often　多久（一次） • every day 每天 • once a week 每周一次 • twice a week 每周两次 • three times a week 每周三次 • once a month 一月一次 • twice a month 一月两次

9. 2c (Page 2) • surfthe internet 网上冲浪 • Many students loves surfing the internet? • 许多学生喜欢上网。 • - What’s your favorite program? • 你最喜欢什么节目？ • - Animal World 动物世界。

10. 3. P3 Activity Survey Exercise

11. 3. P3 Activity Survey Do homework

12. 3. P3 Activity Survey Watch TV

13. What Do Students Do at Green High School? • Here are the results of the student activity survey at Green • High School. 这是格林高中学生活动调查的结果。 • the results of……的结果 • activity survey 活动调查 • As for homework, all students do homework every day. • 至于家庭作业，所有的学生每天都做作业。 • as for　 至于，就…而言 • Although I like watching TV, as for this program, I don’t. 尽管我喜欢看电视，但是至于这个节目我不喜欢。

14. Healthy food Healthy food and exercise help us to study and live better. 健康的食品和锻炼有助于我们更好地学习和生活。

15. 尽管这些食品尝起来都非常好，但是它们是不利于我们的身体健康的。因此我们应少吃这些垃圾食品。尽管这些食品尝起来都非常好，但是它们是不利于我们的身体健康的。因此我们应少吃这些垃圾食品。 Junk food Although these food taste nice, they are bad for our health. So we should eat less junk food. Junk food

16. Section B 课文及短语讲解 1b,P4 • But my mother wants me to drink it. She says it’s good for my health. 但是我妈妈要我喝了它(牛奶)，她说它有益于我的身体健康。 －want sb. to do sth.　想要某人做某事 My mom wants me to become a doctor. 我妈妈希望我成为一名医生。 －want to do sth.　想要做某事 He wants to go to the park with me. 他想和我一起去公园。 • be good/bad for sth./sb. 对某人/事有好/坏处，有益/害于 Fruits are good for our health.　　水果有利于我们的身体健康。 Reading in bed is bad for our eyes. 　躺在床上看书对眼睛不好。 • be good to sb. = be friendly/kind to sb. 对某人友好 We should be good to the old. 　 我们应当善待老人。

17. 3a, P5Read Katrina’s letter • come home from school (L1) 从学校回到家 come to school from home 从家到学校 • eating habit (L2) 饮食习惯 • I try to eat a lot of vegetables, usually ten to eleven times a week. (L2~L3) 我尽量吃大量的蔬菜，通常是一周10到11次。 • try to do sth. 试着/努力做某事 • The boy tries to cross the busy street by himself. 那个男孩试图自己穿过繁忙的街道。

18. 3a, P5 Read Katrina’s letter • Of course, I love junk food too, but I try to eat it only once a week. (L4) 当然，我也喜欢垃圾食品，但是我尽量一周只吃一次。 • I look after my health. (L5) 我很注重我的健康。 look after = take care of照顾，照看 • Jane has to look after her sister every Sunday. 简不得不每周日照看她的妹妹。 health 健康(名词)→ +y=healthy 健康的(形容词) un+healthy =unhealthy 不健康的(形容词)

19. 3a, P5 Read Katrina’s letter • My healthy lifestyle helps me getgood grades.(L6) 我健康的生活方式帮助我取得了好成绩。 • Good food and exercise help me to study better.(L6) 好的食品和锻炼，有助于我更好地学习。 help sb. (to) do sth. 帮助某人做某事 with sth.　　 在某事上帮助某人 • I helped an old man (to) carry the heavy bag. 我帮助一位老人提着重重的包。 • Kate often helps me with my English. 凯特经常帮助我（学习）英语。

20. 3b,P5 Fill in the blanks • I think I’m kind of unhealthy. (L1) 我想我不是太健康。 前缀un~, 含有否定的意思, dis~如unhappy, dislike等。 • I’m not very healthy, although I have one healthy habit. 尽管我不是非常健康，但是我有一个好的习惯。 (L4) although虽然…但是；尽管 (although 不能与but连用，句子中只可选用一个。但可以与yet或still 等连用。) • Although he is over 70, he still exercises every day. • He is over 70, but he still exercises every day . 尽管他已经70多岁，但他依然每天锻炼身体。

21. Exercise 1. _____ do you visit your grandparents? Twice a week. A. How many times B. How often C. When 2. All students went swimming, because _________wanted to go climbing. A. some students B. no student C. no students 3. Eating too much junk food is an ________habit. A. healthy B. unhealthy C. important

22. always－She always gets up at 6:30.　她总是6：30起床。－My mother always tells me to study hard. 　我妈妈总是告诫我要好好学习。 • usually • The students usually play soccer after school. • 　放学后，学生们通常踢足球。 • We usually have no classes on weekends. • 　我们周末通常没有课。

23. often－Mary often watches TV at home all day.玛丽常常整天在家里看电视。－He is often late for school. 他上学经常迟到。 sometimes sometimes 在句中的位置比较灵活，它即可以放在句中，也可以放在句首或句尾。 • 有时我和我的朋友们一起去看电影。 • Sometimes, I go to the movies with my friends. • I sometimes go to the movies with my friends. • I go to the movies with my friends sometimes.

24. hardly ever • I hardly ever went to bed early during the examination.考试期间我几乎没有早睡过觉。 • Jason hardly ever goes out to play with other kids. 杰森很少出去和其它孩子们玩。 never • Although she lived far from school, she was never late for school. 尽管住得离学校较远，但她上学从未迟到过。 • I never watch talk shows, because they’re very boring. 我从不看“脱口秀”节目，因为它们很无聊。

25. …＋频率adv.＋实义动词v.＋… • My mother always cleans the rooms in the morning. 我妈妈总是在早晨打扫房间。 • My friends and I often play basketball on Sunday afternoons. • 我和朋友们经常在周日下午打蓝球。

26. …＋be动词＋频率adv＋… • We are always very tired on school days. 上学的日子我们总是非常累。 • Mary is seldom late for school. 玛丽上学很少迟到。 • Mary seldom arrives late for school.

27. 助/情态动词＋频率adv＋实义动词v. • Jack will never forget those days. 杰克永远不会忘记那些日子。 • I don’t often eat junk food, because it’s bad for my health. 我不常吃垃圾食品，因为它对身体有害。