八年级下unit2导学案

百科微讲堂中学生参加体育锻炼的好处
经常进行体育锻炼，人体新陈代谢旺盛，蛋白质等营养物质的吸收与贮存能力增强；
体育锻炼可促进骨质增强，提高骨的性能。

体育锻炼对循环系统发展的影响是非常显著的，它对增强心血管的机能，提高血液循环质量起着积极作用；一般中学生的肺活量是：男生2500～4000毫升，女生2000～3000毫升。

经常进行体育锻炼的人，肺活量比一般学生大1000毫升左右。

经常进行体育锻炼的人，大脑皮质神经细胞的兴奋性、灵活性和耐久力都会得到提高，学习和工作处于最佳状态，并能坚持较长时间。

在自然环境中能接受寒冷和炎热的刺激，从而提高对环境变化的适应能力和对疾病的抵抗能力。

假如学生学习累了，到户外活动一会再回来学习，学习效率肯定会提高。

这也是我们安排课间十分钟的原因。

学习目标【Learning objectives】
1.熟练掌握下列单词：housework, hardly, ever, hardly ever
2.掌握频率词汇及询问活动频率；熟练运用一般现在时态.
3.能听懂并熟读文中的对话:
预习内容【Preview contents】
自主预习并完成Section A 1a—1c的导学单，为上课做好准备。

学习过程【Learning process】
一、预习反馈，明确目标【Preview feedback, Clear objective】
Ⅰ.翻译：
1.家务劳动____________
2.几乎没有______________
3.在任何时候，曾经______________
4.几乎从不______________
5.有时_______________
6. never_________________
7. 总是_________________ 8. Often_________________ 9. Usually________________
Ⅱ.通过预习，你们能又快又准确翻译下列句子吗？
1.你多久去运动？_____________________________________________________________
2.你周末通常干什么？_________________________________________________________
3.我通常去看电影？___________________________________________________________
4.你通常去购物吗？__________________________________________________________
5.我从来都不去购物。

_________________________________________________________
6. 我经常帮助妈妈做家务。

____________________________________________________
7. 我几乎从不看电视。

________________________________________________________
二、达标测评, 巩固提高【Evaluation standards，Consolidation and improvement】
（）1.I like English very much,so I ______ listen to the tape in the morning.
ually
B.hardly ever
C.never
（）2.—What does your father do in the evening? —He usually ____________.
A.watch TV
B.exercises
C.read books
（）3.“____________give up,then you can be successful(成功) .”
A.Always
B.Sometimes
C.Never
（）4.—Doctor,_______ should I take this medicine?
A.what time
B. How much
C. How often
（）5.Though he has studied _______ at Russian for ten mouths, he can still ____speak it.
A.hard; hardly
B. hardly; hardly
C. hardly; hard
课后反思: _________________________________________________________
百科微讲堂健康食物
大豆与豆制品
大豆含有的氨基酸富含有健脑功效的赖氨酸。

黄豆中丰富的卵磷脂是补益大脑物质;坚果是促进大脑发育和加强思维能力的佳品;杏仁可助睡眠，帮助人体保持大脑清醒，提高学习和工作效率。

干果中龙眼有补心脾、益气血、助精神之功效，能辅治失眠、健忘、神衰，故被赞为“益智果”；荔枝对大脑细胞有补益作用；健脑水果首推柑桔、柠檬。

柑桔含有大量的维生素B1、C，是优良的碱性食品。

此外还有含维生素C较多的草莓、金桔、鲜枣等等。

学习目标【Learning objectives】
1.熟练掌握下列单词：once, twice, internet, program, full, swing, swing dance.
2.频率词汇及询问活动频率；一般现在时态的熟练运用。

3.能听懂并熟读文中的对话。

预习内容【Preview contents】
自主预习并完成Section A 2a—2d的导学单，为上课做好准备。

学习过程【Learning process】
一、预习反馈，明确目标【Preview feedback, Clear objective】
翻译下列单词及短语：
1．两次，两倍_______________ 2.一次，曾经________ 3. 因特网______________ 4. 节目_____________5.满的，充满的_____________ 6. 摆动，秋千_________________ 7.摇摆舞_____________ 8. 去看电影__________________9.看电视_________________ 10.上网_________________________ 11.锻炼_____________________________
12.每天_________________________ 13.一周一次__________________________
14.一周两次_______________________15. 一周三次__________________________
16.一月一次_______________________17. 让我想想_________________________
19.怎么回事？_____________________ 20. 喜欢的节目_______________________
二、达标测评, 巩固提高【Evaluation standards，Consolidation and improvement】
Ⅰ.对划线部分提问：
1.My favorite program is Animal World.（对划线部分提问）
_______ _______favorite program ?
2. They hardly ever play football. （对划线部分提问）
_______ _________ ________they play football ?
3. He does homework at home after school. （对划线部分提问）
_______ ________ he do homework after school?
Ⅱ.单项选择
() 1.A: _____does she exercise? B: Once a week.
A. How often
B. How soon
C. How long
() 2. I ______ like to drink milk. A. not B. doesn’t C. don’t
() 3. How often does Tom ____ TV? He ____ TV three times a week.
A. watches, watches
B. watch, watches
C. watches, watch
() 4.I visit my parents _________a month.
A. two times
B. second time
C. the second time
D. twice
() 5. One of my favorite programs ________ Animal World.
A. am
B. is
C. are
D. don't
( ) 6.She hardly ever ________ sports games _____ TV on Sunday evening..
A. watching; over
B. to watch; in
C. watch; by
D. watches , on
课后反思: __________________________________________________________
百科微讲堂良好的饮食习惯与不良饮食习惯
每天早上起来先喝一杯水，可以使水分被身体充分吸收，早饭要吃好，午饭要吃饱，晚饭要吃的7分饱，睡觉前要喝几杯水，因为睡觉期间血液浓度高，这样可降低血液浓度，减少一些疾病的发生。

电视佐餐，食不知味。

润喉片当糖，口腔“遭殃”。

偏食肉和蔬菜，身体很“受伤”；零食当正餐，上课昏昏然。

电脑好玩，肠胃受害。

食色素超标食品，慢慢损害健康。

常光顾街边小食摊，不知不觉潜伏疾病。

饮料当水，喝得鼻血淌。

不喝牛奶，身体营养不良。

烧烤好吃，代价太大。

学习目标【Learning objectives】
1.掌握下列单词：maybe, least, at least
2.掌握Grammar Focus中的内容,巩固频率词汇及如何询问活动频率。

3.完成3a-3c.
预习内容【Preview contents】
自主预习并完成Section A Grammar Focus—3c的导学单，为上课做好准备。

学习过程【Learning process】
一、预习反馈，明确目标【Preview feedback, Clear objective】
翻译句子。

1. 你周末通常做什么？___________________________________________________
2. 我总是锻炼。

___________________________________________________________
3. 他们周末做什么？_____________________________________________________
4. 他们经常帮助做家务_____________________________________________________
5. 她经常周末做什么？_______________________________________________________
6. 她有时去购物。

_________________________________________________________
7. 你隔多长时间去看一次电影？______________________________________________
8. 我大概每隔一月看一次电影。

_____________________________________________
9. 他多长时间看一次电视？_________________________________________________
10. 他几乎从不看电视？_____________________________________________________
11. 你购物吗？_____________________________________________________________
12. 不，我从来不购物。

_____________________________________________________
二、师生互动，拓展延伸【Teacher-student interaction, Development】
三、达标测评, 巩固提高【Evaluation standards ，
Consolidation and improvement 】
Ⅰ.用方框内的单词或短语完成下面的句子。

2. How ________do you go to the movies?
3. It _______________rains here. It’s usually sunny and warm.
4. Some of my friends exercise every day and hardly ever eat junk food ，but the others eat junk food ____________.
5. 1 can’t swim. So I ____________go to the beach to swim. Sometimes I go there with my friends to run.
Ⅱ.单选。

1.--Sally, how often do you use the Internet ?-_________.
A. Twice a week 3. Three hours C. Two years ago D. This afternoon
2. --Zhang Lili , the most beautiful teacher, moved us deeply.
--Yes, and she is ___________popular with her students.
A.sometimes
B. never
C. Always
D. hardly
3. --_________do you visit your grand- parents? --Once a month.
A. How soon
B. How long
C. How much
D. How often
4. -- __________do you watch TV every week?
--Less than two hours. I often have much homework to do.
A.How many
B. How much
C. How long
D. How often
5. Tom studies _______.He _______plays with his friends.
A. hard; hard
B. hardly; hardly
C. Hard; hardly
D. hardly; hard
课后反思: ________________________________________________________________
百科微讲堂 如何使用大蒜事半功倍
捣碎吃有保健作用。

生吃杀菌效果好。

炝锅加点儿糖保护大蒜素。

紫皮蒜比白皮蒜更抑菌。

独头蒜更抗癌。

大蒜最好在通风、干燥、黑暗处保存，这样能抑制其发芽。

存放时还应保持
外皮的完整，随用随剥皮。

每天生吃不宜超过2~3瓣。

大蒜素对肠胃有一定的刺激作用，生吃过多大蒜，易引起急性胃炎，长期过量食用还容易造成眼部不适。

肝病、非细菌性腹泻、眼疾、胃病、十二指肠、脑溢血患者最好不要吃大蒜。

学习目标【Learning objectives】
1.掌握下列单词：junk, junk food, coffee, health
2. 巩固频率词汇,能听懂并熟练掌握活动频率的问答方法。

预习内容【Preview contents】
自主预习并完成Section B 1a-1e的导学单，为上课做好准备。

学习过程【Learning process】
一、预习反馈，明确目标【Preview feedback, Clear objective】
翻译下列单词：
1.无用的东西___________
2.垃圾食品_____________
3.喝咖啡_________________
4.健康________________
5.喝牛奶_______________
6.对……有好处____________
7.好习惯____________ 8.吃水果__________________9.每天_________________
二、达标测评, 巩固提高【Evaluation standards，Cosolidation and improvement】
Ⅰ.单项选择：
1.__________do you drink coffe? -----Twice a day.
A.How many
B.How long
C. How soon
D. How often
2.My teacher wants me _________ hard.
A.study
B. studying
C. to study
D. studies
3.Eating fruit and vegetables _____________ our health.
A. is good to
B. is good
C.is good for
D.is well for
4.Miss Liu is very ________, because she exercises every day.
A. health
B. healthy
C. unhealthy
D. unhealth
5.Thank you for _______ me with my English.
A. help
B. to help
C.helping
6. _______ milk do you drink?
A. How many
B. How much
C.How often
D. How soon
7.Don’t read in bed. It’s bad ___ your eyes. A. for B.of C. with
8.I try to eat junk food once a week _____ I love it very much.
A. although
B. through
C. but
9. Jenny _____ lifestyle. A. has a healthy B. have a healthy C. has a health
10.If you want to be healthier, you must eat ____ junk food, I think.
A. more
B. less
C. fewer
11. I try ____ vegetables eleven times a week. A. eat B. eating C. to eat
12. Eating more vegetables helps you to keep ________ good health.
A. for
B. in
C. to
13.Is Katrina's life the same ____ （和……’同）yours?
A. as
B. to
C. with
II.用所给词的正确形式填空。

1. I want you ________( play ) soccer with me.
2. My father hardly exercises , so he is a little _________( health).
3. Why not ___________( go ) to the movies?
4. We should have good ____________ ( eat ) habits.
5. Do you like _______( tomato)?
6. You must ________ ( look ) after yourself.
7. What are the __________( different ) between the two pictures?
8. You should eat ________( little ) meat. It is bad for you.
课后反思: ________________________________________________________________
百科微讲堂韩国人的饮食习惯
韩国饮食的主要特点：高蛋白、多蔬菜、喜清淡、忌油腻，味觉以凉辣为主。

韩国人自古以来把米饭当做主食。

菜肴以炖煮和烤制为主，基本上不做炒菜。

韩国人喜欢吃面条、牛肉、鸡肉和狗肉，不喜欢吃馒头、羊肉和鸭肉。

韩国人普遍爱吃凉拌菜。

还有生拌鱼肉、鱼虾酱等菜肴。

汤也是用餐时必不可少的部分。

韩国人爱吃辣椒，家常菜里几乎全放辣椒。

韩国人有一日四餐的饮食习惯，分别安排在早上、中午、傍晚、夜晚。

韩国人就餐用勺和筷子。

每个人都有自己的饭碗和汤碗，其他所有的菜则摆在饭桌中间供大家享用。

学习目标【Learning objectives】
1.掌握下列单词：result, percent, online, television, although, through,mind, body, such, such as, together, die, witer.
2. 理解2b短文的主旨大意，完成3c 和 3d，掌握文章中的短语、句型。

3.对本课的内容进行归纳、对话改写、及仿写。

预习内容【Preview contents】
自主预习并完成Section B Period5 2a-2e的导学单，为上课做好准备。

学习过程【Learning process】
一、预习反馈，明确目标【Preview feedback, Clear objective】
翻译下列单词及短语
1.结果，后果___________
2. 百分之_____________
3. 在线，联网的__________________
4. 电视节目______________
5.尽管_______________
6. 凭借，穿过___________________ 9.这样的______________10. 像……这样___________ 11. 在一起，共同____________ 12. 消失，灭亡____________13.作者，作家____________14.上网____________________ 15.百分之十五_______________________16. 一周四到六次__________________________
17. 一点也不______________________18.本性难移_________________________________
二、达标测评, 巩固提高【Evaluation standards，Consolidation and improvement】
Ⅰ.单选
（）1. Her father ________ time.
A. usually waste
B. never wastes
C. hardly ever waste
D. always wasting
（）2. A: How often does Lara play the trumpet?
B: _____ once or ________ a week, I’m not sure.
A. May be, twice
B. Maybe, twice
C. Maybe, two times
D. May be, two time
（）3. A: I’ll give the boys _______ to eat. B: Oh, I know fish and salad.
A. something healthy
B. healthy something
C. anything healthy
D. healthy anything
（）4. What _______ the differences between your habit and _____?
A. are, hers
B. is, his
C. does, her
D. do, his
（）5. A: _____ do you write to your parents? B: Once a month.
A. How often
B. How long
C. How much
D. How many
Ⅱ.用所给词的正确形式填空。

1. We often___________(play) in the playground.
2. He _________(get) up at six o’clock.
3.__________you_________(brush) your teeth every morning?
4. What______ he usually_______(do) after school?
5. Danny ______ (study) English,Chinese,Maths,Science and Art an school.
6. Mike sometimes __________(go) to the park with his sister.
7. At eight at night, she __________(watch) TV with his parents.
8. ________ Mike________(read) English every day?
9.How many lessons______ your classmate______(have) on Monday?
10. What time_______ his mother_______(do) the housework?
11. Mike _______(like) cooking.
12. They _______(have) the same hobby.
13. My aunt _______(look) after her baby carefully.
14. You always _______(do) your homework well.
15. I _______(be) ill. I’m staying in bed.
课后反思:______________________________________________________________________。