人教版八年级上册Unit 2 How often do you exercise?Section B 1a-1e 学案（无答案）

Unit 2 How often do you exercise
Period 4 Section B (1a—1e)
【学习目标】
1. 掌握下列重点词汇：junk, coffee, health,
2. 掌握下列重点短语：junk food, be good for, want sb. to do sth.
3. 掌握下列 重点句型：How many hours do you sleep every night
4. 语法：进一步学习一般现在时的特殊疑问句及回答。
【重难点】
1.教学重点：用how often句型谈论生活习惯
2.教学难点： 学会分清健康食品与垃圾食品。
（一）情境创设：
（二）目标导引：
独立预学展示
1.无用的东西 2.垃圾食品
3.有好的习惯 4.对……有好处
5.想要某人做某事 6.各种蔬菜.
7.每天喝牛奶 8.保持健康
9.你多久吃一次垃圾食品？
10.你每天晚上睡多少个小时？
（三）合作探究
一、重点单词与短语
1. junk food 意为“垃圾食品”，热量高，添加剂多但是营养价值低的快餐食品。
【拓展】 汉堡包 hamburger ; 热狗 hot dog ; 薯条 French fries ….
junk shop 旧货店 junk mail 垃圾广告邮件
【跟踪训练】
(1) 孩子们不能吃太多的垃圾食品。Children can’t eat ___________ ___________ ___________ ___________.
2. coffee 不可数名词，意为“咖啡”。 “五杯咖啡” five ____________ of _____________
【拓展】coffee构成的固定短语
drink coffee “喝咖啡”； make coffee “冲咖啡”；
black coffee “无奶咖啡”； white coffee “加奶咖啡”
【跟踪训练】(1) 他在咖啡里放了些牛奶。 He __________ some milk into his __________.
3. health 作不可数名词，意为“健康；人的身体（或精神）状态”，其形容词形式为healthy。
e.g. Having a healthy lifestyle is good for our health. 拥有一种健康的生活方式有益健康。
【拓展】keep in good health = keep healthy （保持健康）
be in good (bad, poor) health 表示“身体好（不好）” healthy的副词形式是healthily
【跟踪训练】
(1) 健康胜于财富。 __________ is better than wealth.
(2) 汤姆是一个健康的男孩。 Tom is a __________ boy.
(3) 因为他妈妈身体不好，他常回家看望他的妈妈。
He often comes to see his mother, because she is ___________ ____________ ___________.
二、重点句型
1. But my mother wants me to drink it. 但我妈妈想要我喝。
【精讲】
1. want 作动词，意为“要；想要”，后跟名词或代词作宾语，即want sth.
I want a sweater. 我想要一件毛衣。
2. want 后还可以跟不定式作宾语，即want to do sth.
He wants to drink some milk. 他想要喝一些牛奶。
3.want 后还可跟不定式作宾语补足语，即want sb. to do sth.
Our teacher wants me to read these words. 我们的老师想要我读这些单词。
【跟踪训练】
(1) The shirt is very beautiful. I ________ it. 这件衣服很漂亮。我想要它。
(2)（ ）The children wants their teacher them a story.
A. tell B. tells C. telling D. to tell
2. She says it’s good for my health. 她说它对我的健康有益 。
【精讲】此句是一个含有宾语从句的句子， it’s good for my health 作says 的宾语。
He says he likes English very much. 他说他非常喜欢英语。
【辨析】say与speak
say与speak 都有“说”的意思，say后跟“说”的具体内容，speak后可跟某种语言。
e.g. My parents say milk is good for my health. 我的父母说牛奶对我的健康有益。
He can speak English very well. 他英语说得很好。
【跟踪训练】
(1) ( ) He usually “Good night !”to his parents before going to bed.
A. say B. says C. speak D. speaks
(2) ( ) You ______ French so well, please _______ it in French.
A. say, say B. say, talk C. speak, tell D. speak, say
【精讲】be good for… 意为“对……有益”，
其反义词为be bad for……，意为“对……有害”。
e.g. Doing morning exercises is good for our health. 做早操对我们的健康有益。
【拓展】good常用于下列搭配中:
be good at… = do well in… 意为“擅长、善于”，后接n. /pron. / doing…
be good to sb. 意为“对某人友好” be good with … 意为“善于应付…….的”
【跟踪训练】
(1) 这药可治头痛。The medicine ___________ ___________ ___________ headache.
(2) Junk food ___________ ___________ ___________ (有害于) our health.
(3) 小猫与小狗相处融洽。The dog __________ ___________ ___________ the cat.
3. How many hours do you sleep every night 你每天晚上睡几个小时？
【精讲】这是由“how many+可数名词复数”引导的一般现在时的句子，其中every night 是一般现在
时的标志。
e.g. How many hours do you swim every day 你每天游泳几小时？
【拓展】sleep v.“睡觉”； n.“睡觉/ 睡眠”； go to sleep = go to bed “去睡觉”
【辨析】asleep, sleepy与 sleeping
asleep adj.“睡着的”,常用作表语。它如果作定语，应放在所饰名词之后做后置定语。
sleepy adj.“困的”
sleeping 可与be一起构成进行时态。也可作adj.使用，“供睡觉用的”，作定语。
【跟踪训练】
(1) I often exercise three hours every day. (对划线部分提问)
do you exercise every day
(2) He often exercises twice a day. (对划线部分提问)
___________ _____________ he exercise a day
(3) He was so __________ that he fell ___________ at his desk. (太困，睡着了)
(4) Don’t shout！Your father __________ __________(在睡觉).
（四）交流展示
1.1a match the pictures with the pictures.
2.1b ask and answer in pairs.
3.1c Listen and circle the answer to the questions.
4.1d listen again fill in the blanks in the survey.
5. Talk about the vacation in groups.
（五）积累巩固
一、单项选择
( ) 1. I think drinking milk every morning is good our health.
A. on B. with C. for D. at
( ) 2. — do you go to the library. — Once a week.
A. How often B. How far C. How long D. How soon
( ) 3. —How often do you watch TV — .
A. Twice B. Three hours C. Once a day D. In the evening
( ) 4. — do they exercise every day — About three times, I think.
A. How many times B. How many hours C. How many D. How much
( ) 5. Tina wants me her her Chinese.
A. to help; with B. help; to study C. helping; study D. to help; studying
( ) 6. These days Mrs. Li looks pretty .
A. healthy B. healthily C. health D. unhealthily
( ) 7. She says that her brother is good swimming.
A. for B. to C. of D. at
( ) 8. Jack uses the Internet three times a week.
A. never B. at least C. in most D. in least
( ) 9. Healthy food and exercise me to keep in good health．
A．helps B．helping C．help D．to help
( ) 10. Most of the students usually have a ________ holiday.
A. seven weeks B. seven week C. seven-week D. seven-weeks’
二、用所给单词的适当形式或根据汉语提示填空
1. Exercise is good for your _____________ (healthy).
2. _____________ (read) books _____________ (be) good for you.
3. They want him _____________ (read) the story for them.
4. How many _____________ (watch) do you have
5. How many ____________ (hour ) do you read English every day？
6. Tom usually ___________ (start) the day with breakfast.
7. I___________(hard) ever see him now.
8. There are 45 students in my class. (对划线部分提问)
_____________ _____________ _____________ are there in your class
9. He wants me to play soccer with him. (对划线部分提问)
_____________ _____________ he _____________ you to _____________
10. I drink coffee every day. (对画线部分提问)
_____________ _____________ do you drink coffee
（六）延伸拓展
一、完形填空
exercise, sport, computer, try, tired, never, like, because, bad, stay
Mark is a 17-year-old high school student in America. He has lots of 1 habits. He likes to use the Internet for fun at night, and he usually 2 up late. When he feels sleepy, he drinks some coffee. 3 he goes to bed late, he usually gets up late the next morning and arrives at school late. For breakfast, he always eats junk food 4 hamburgers. And he 5 exercises. He doesn’t like to exercise at all. These of his habits are not good for his body or his mind. He often feels 6 and sometimes he can’t think quickly. He is worried about his health and decides to do 7 . “I’ll try not to spend too much time on the 8 ,” he says, “I’ll get up early and 9 in the park at least three times a week. And I’ll 10 to eat healthy food. People say ‘old habits die hard’, but I must make my old habits die.”
1.____________ 2.___________ 3.____________4.____________5._____________
6.____________ 7.___________ 8.____________9.____________10.____________