Unit2 How often do you exercise?Section B 2a~2e学案 人教版八年级英语上册（无答案）

Unit 2 How often do you exercise
Period 5-6 Section B (2a—2e)
【学习目标】
(1) 掌握下列重点词汇：result, percent, online, television, although, through, mind, body, such, such as, together, die, writer.
(2) 掌握下列重点短语：ask sb. about sth., fifteen percent of…, not…at all, go online, be surprised, the answers to…, by doing…, the best way to relax, such as
(3) 掌握下列重点句型：
① Here are the results.
② Although many students like to watch sports, game shows are the most popular.
③ Exercise such as playing sports is fun, and you can spend time …
④ Old habits die hard.
⑤ So start exercising before it’s too late!
【重难点】
教学重点：阅读技巧的使用及生词短语的熟练运用
教学难点： 理解2b短文的主旨大意，学会写业余活动的调查报告。
（一）情境创设：
（二）目标导引：
独立预学展示
1.去乡村野营_____________________________ 2.在他们的空余时间________________________
3.问某人关于某事_________________________ 4.百分之十五的学生________________________
5.每周4到6次___________________________ 6.一点也不________________________________
7.……的答案_____________________________ 8.最受欢迎的______________________________
9.最好的放松方式_________________________ 10.例如___________________________________
（三）合作探究
一、重点单词与短语
1. percent
作名词，意为“百分之…”，其符号为%，可数名词，单复数同形。
【拓展】
①百分数的表达方式：“基数词 + percent ( of + 名词”)
e.g. 百分之二十 : twenty percent
Eighty percent of the students in our class exercise every day.
我们班里80%的学生每天都锻炼。
② percent做主语时，谓语动词的数要根据其后面的名词来确定。
e.g. Fifty percent of the apples are bad. (50%的苹果都坏了。)
Seventy percent of the earth is covered with water. (地球70%被水覆盖。)
【跟踪训练】
(1)在这个学校里，百分之十是男老师。
________ ___________ of the teachers ___________ men in this school.
(2) 20%的肉都在冰箱。Twenty __________ of the meat __________ in the fridge.
2. not … at all
意为“一点也不……，根本不……”，not应和be动词、助动词或情态动词连用。
e.g. The story isn’t interesting at all. 那个故事一点也没有趣。
【拓展】Not at all. 意为“不客气。”相当于“You’re welcome.”
【跟踪训练】
(1) 他们根本不喜欢那次假期。They __________ enjoy the vacation __________ ___________.
(2) — Thank you for your help. —__________ __________ __________.
3. surprise 作动词，意为“使惊奇、使诧异、使感到意外”；名词，“惊奇、惊喜、诧异”
e.g. You surprise me. 你吓了我一跳。
【拓展】 surprised adj. “感到吃惊的”； be surprised at / by…“对…感到惊讶”
be surprised to do sth. 对做某事感到吃惊 be surprised that… 对……感到惊讶
in surprise “惊奇地” ； to one’s surprise “令某人吃惊的是”
【辨析】surprise，surprised 和surprising
surprise n.，意为“惊奇，惊讶”；v. 意为“使……感到惊讶”。
surprised adj.“感到吃惊的”，主语常是“人”。
surprising adj. “使人、令人惊奇的”， 主语常是“事物”。
【跟踪训练】
(1) 他们对这个消息感到很惊讶。
They are very ______________ _____________ the news.
(2) 多么令人吃惊的消息！ ______________ ______________ news！
(3) 令我吃惊的是，他是小偷。__________ my ____________, he is a thief.
(4) 罗斯惊奇地看着她老朋友。Rose looked at her old friend ___________ _________.
4. although 连词，“尽管，虽然；即使”，引导让步状语从句。
e.g. We went fishing although it was cold. 尽管天气很冷，但是我们还是去钓鱼了。
【拓展】although 和though同义，在一般情况下，可以互换使用。
even能和though组合表示强调，但even不能和although组合。因此，不能说even although, 在这
里even though = even if (“即使…也….”)
【注意】在同一个句子中，although/ though不能与 but连用。但可与副词yet 或still连用。
e.g. 尽管他离家很早，但是他还是迟到了。
Although he left home early, but he was late. (×)
Although he left home early, he was late. (√)
【跟踪训练】
(1) 虽然我的汽车很旧，但我不想买一辆新的。
_____________ / ______________ my car is very old, I don’t want to buy a new one.
= My car is very old, _____________ I don’t want to buy a new one.
(2) 尽管我们很穷，但我们仍然很开心。___________ we are poor, we can still be happy.
5. through 作介词，意为“以；凭借；穿过”。
He found the job through an advertisement in the newspaper.他通过报纸上一个广告找到这份工作。
【跟踪训练】
(1) 过马路时要左右看。
Look left and right before you ___________ ___________ the street.
(2) 这条河流经我们市。The river runs _________________ our city.
6. mind n. 意为“头脑，心智”；“主意，想法”
v. 意为“介意；反对”，常用于否定句、疑问句或条件句中，其后跟名词、代词或动词-ing形式作宾语。
e.g. He has the body of a man and the mind of a child. 他四肢发达，头脑简单。
【拓展】make up one’s mind 下定决心 keep…in mind 记住……
the mind and the body 身心 change one’s mind 改变主意、想法
Would you mind sth. / doing sth. 你介意（做）某事吗？
【跟踪训练】
(1) 没有得到这份工作她介意吗？ Did she mind not the job
(2) 他虽然90岁了，但头脑很灵活。He is ninety years old, but his is sharp.
7. such as “例如；像……这样”，表示列举相当于like。
结构常为: 名词+ such as + 例子 (其后可接n./ pron. / doing).
e.g. She likes animas such as rabbits and birds. 她喜欢像兔子、小鸟这样的小动物。
【辨析】 so 和 such
such adj. / pron. “这样的；那样的；类似的”；后接CN. / UN. 其结构是“such +a/ an + adj.+ CN. (单数)”；“such + adj.+ UN. / CN. (复数)
so adv. “如此，这样”；后接adj./ adv. 其结构是“so + adj. / adv.”； “so + adj.+ a / an + 单数n.”
e.g.他是一个如此聪明的孩子。He is such a clever boy. = He is so clever a boy.
别制造那么多噪音。Don’t make so much noise！
【跟踪训练】
(1) 你可以带点食物，比如汉堡、面包等等。
You can bring some food with you, ________ ________ hamburgers, bread and so on.
(2) 如此好的一天。 It’s _______ _______ ______ day. = It’s _______ ________ ________ day.
8. die 动词，“消失；灭亡；死亡”；过去式为died，动词-ing形式为dying。
【拓展】dead adj.“死的”； death n.“死、死亡”；dying adj.“垂死的、要死的”
die of “死于……”，多用于内因； die from “死于……”，多用于外因。
die out 灭绝，消失。
【跟踪训练】
(1) 一年后我的狗死了。A year later my dog ________.
(2) 它要死了。It is ____________.
(3) 他母亲的死很突然。The___________________ of his mother was sudden.
(4) 许多人死于癌症。Many people ___________ ___________ cancer.
二、重点句型与语法
1. We found that only fifteen percent of our students exercise every day.
【精讲】本句为主从复合句，句子主干为：We found + that从句。
found为find的过去式，意为“发现，找到”。
【拓展】find 后面常接的复合结构
(1) find+宾语+介词短语 Jane found herself in trouble. 简发现自己有麻烦了。
(2) find+宾语+形容词 He found this movie very interesting. 他发现这部电影非常有趣。
(3) find+宾语+名词短语 You’ll find it a difficult book. 你会发现它是一本难懂的书。
(4) find+宾语+动词-ing形式 She found Tom standing at the door. 她发现汤姆正站在门口。
2. It is good to relax by using the Internet or watching game shows….
【精讲A】其中it是形式主语，真正的主语是后面的动词不定式短语。
(1)It’s + adj. +（for sb.）to do sth. “对于某人来说，做某事是…样的。”
形容词描述事物的特征、性质。如：easy, difficult, interesting, funny, dangerous, important等。
(2)It’s + adj. + of sb. to do sth. “某人做某事是……样的”
形容词描述的是人的性格、品质。如：kind, clever, friendly, nice, right, cute, careless, polite等。
【精讲B】 by 为介词，意为“通过，靠”，此处表示方法、手段，后接名词、代词或动词-ing形式。
by doing sth. “通过做某事”，在句子中作方式状语。
【跟踪训练】
(1)对于我们来说，学习一门外语是重要的。
It’s important________ _________ __________ __________ a foreign language.
(2) 这老人通过卖菜谋生。The old man makes a living _________ ________ vegetables.
3. So start exercising before it’s too late!
【精讲】it’s too late “为时太晚；来不及了”
it’s too late与before共同组成从句，表示“不要等到为时已晚；趁着还来得及 ”。
【跟踪训练】
(1) 现在你知道你错了，但是已经太晚了。
Now you know you’re wrong, but __________ __________ ___________.
(2) 你应当更加用功，别等到为时过晚而赶不上了。(你现在用功还赶得上。)
You should work harder_________ _________ _________ _________to catch up.
（四）交流展示
1. Fast reading. Read the plete the pie charts.
2. Careful-reading. Finish 2c and 2d.
3. 2e. Do the survey and make a pie chart.
4. Retell the article.
（五）积累巩固
一、单项选择
( ) 1. —______does he do on the weekend — He often helps his mother with housework.
A. How B. How often C. What D. How soon
( ) 2. Your lifestyle is the same _____.
A. to my brother B. to mine C. as mine D. as my brother
( ) 3. ____he was tired, ______he didn’t stop ______.
A. Although; but; to rest B. Though; /; working
C. Although; /; resting D. though; but; working
( ) 4. Her father ________ time.
A. usually waste B. never wastes C. hardly ever waste D. always wasting
( ) 5. — How often does Lara play the trumpet
— _____ once or ______ a week, I’m not sure.
A. May be, twice B. Maybe, twice C. Maybe, two times D. May be, two times
( ) 6. — I’ll give the boys _______ to eat. — Oh, I know fish and salad.
A. something healthy B. healthy something
C. anything healthy D. healthy anything
( ) 7. — Excuse me. Could you save the _________ dog —Sure.
A. die B. to die C. dying D. dies
( ) 8. About 75 percent of the earth ________ water.
A. is B. are C. am D. were
( ) 9. The moonlight is shining in _______ the window. Everything in the room looks so nice.
A. over B. across C. through D. past
( ) 10. No student in our class _________interested in documentaries.
A. is B. are C. has D. have
二、句型转换
1. Mr. Zhang taught him English two years ago. ( 改为一般疑问句 )
_________ Mr. Zhang ___________him English two years ago
2. I have piano lessons on Friday and Saturday. (对划线部分提问)
__________ _________ you have piano lessons
3. The boy has been to the USA twice. (对划线部分提问)
How _________ _________ has the boy been to the USA？
4. Mary is a 16-year-old girl. (改为同义句)
Mary is _________ __________ __________.
5. Many students watch TV every day. (改为否定句)
_________ students watch TV every day.
三、用所给词的适当形式填空
1. Exercise such as __________ (play) soccer is fun for us.
2. Tom studies Chinese by __________ (watch) Chinese movies.
3. I watch TV ____________ (two) a week.
4. It is a good habit _____________ (wash) your face before you go to bed.
5. I’m _____________ at the ________________ (surprise) news.
（六）延伸拓展
一、补全短文
Health is very important to everyone, but not everyone knows how to keep healthy. The best way for you to keep healthy is to eat different kinds of food. Maybe French fries and fried chicken are your favorite food, but they are junk food, so you shouldn’t eat them too often. 1 Apples, strawberries, bananas, carrots and cabbages are all good for your health.
2 It can help to build strong bones(骨骼). A kid usually needs two cups of milk every day. When you’re thirsty(口渴的), water is the number one choice(选择). 3
Sometimes people eat too much, because they don’t know when they should stop eating. So when you eat, you should notice (留意) how your stomach feels. Don’t eat too much. 4
Don’t sit for long hours. You should try to spend less than two hours watching TV every day.
5 Exercise can make you strong and help you keep in good health.
Eating too much can make you feel bad and become fat. You had better not drink carbonated drinks(碳酸饮料) too much. As a kid, you should eat fruit and vegetable`1s every day. Milk is also good for your health. Try to do exercise often. You’d better drink orange juice. You should eat an apple every day.
1. 2. 3. 4. 5.
二、阅读理解
We know good health and happiness are important in our life. Here are some ways to get them.
＊Eat a balanced diet. Eat a lot of fruit and vegetables, some grain（谷物）and a little meat.
＊Exercise two or three times a week.
＊Get enough（足够的）sleep. It is best to sleep at least（至少）eight hours every day.
＊Keep yourself busy. This is good because it stops you from having bad habits. To keep yourself busy, you can work around the house, do sports, or have a hobby.
＊Go out and make friends. Spend time and have fun with them. Talk more with them, but try not to talk about anything bad. You should stay with the people who are healthy.
( ) 1. How often should you exercise if you want to get health and happiness
A. Every day B. Once a week
C. Twice or three times a week D. Five times a week
( ) 2 We usually need at least ____ hours’ sleep a day.
A. six B. seven C. eight D. nine
( ) 3.The underlined （下划线的）word “it” refers to（指代）____.
A. eating a balanced diet B. exercising more
C. keeping yourself busy D. making friends
( ) 4. What shouldn’t you do to get health and happiness
A. Eat a lot of meat B. Talk about some interesting things with your friends
C. Get enough sleep D. Stay with the people who are healthy.