人教版八年级上册Unit2-sectionB.演示教学.ppt

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1、第一页，共44页。milkmilkcoffeecoffee第二页，共44页。vegetablesvegetablesfruitfruitHealthy 第三页，共44页。chipschipshamburgerhamburgerjunk food/unhealthyjunk food/unhealthy第四页，共44页。colacolachocolatechocolate第五页，共44页。is good is good for our for our health.health.Junk food is bad for Junk food is bad for our health.our he

2、alth.第六页，共44页。be good/bad for healthbe good/bad for healthCoffeeCoffee is bad foris bad for our health.our health.第七页，共44页。be good/bad for healthbe good/bad for healthPotato chipsPotato chips areare bad for bad for health.health.potato chips=French fries第八页，共44页。colacolabe good/bad forbe good/bad fo

3、r health health第九页，共44页。be be good/bad forgood/bad for health health第十页，共44页。bebe good/bad for good/bad for health health第十一页，共44页。be be good/bad forgood/bad for health healthhot doghot dog第十二页，共44页。Match the words with the pictures.Match the words with the pictures.abcef1a1ad1.1._ junk food 4._vege

4、tables _ junk food 4._vegetables 2._ milk 5._ sleep2._ milk 5._ sleep3._ fruit 6._ coffee3._ fruit 6._ coffeeb ba ae ec cf fd d第十三页，共44页。DoctorsDoctors wantwant usus to to eat every day.eat every day.DoctorsDoctors wantwant usus toto drink every day.drink every day.want to do sth.想要想要(xin yo)做做某事某事w

5、ant sb.to do sth.想要想要(xin yo)某某人做某事人做某事第十四页，共44页。DoctorsDoctors want want us us toto every dayevery day.Because Because is good for our healthis good for our health.第十五页，共44页。Doctors Doctors want us to every day.want us to every day.Because Because is good foris good for ourour healthhealth.第十六页，共44

6、页。Doctors Doctors dontdont want us to every day.want us to every day.Because areBecause are_ _ _._ _ _.bad for healthbad for health第十七页，共44页。How often do you How often do you drink milk,Liu Fang?drink milk,Liu Fang?I drink milk every day.I drink milk every day.Do you like it?Do you like it?No.But my

7、 mother No.But my mother wantswants me me to drink it.She to drink it.She sayssays it its s good forgood for my health.my health.1b1b第十八页，共44页。How often do you How often do you _ _?_ _?I _ _ _.I _ _ _.Do you like it?Do you like it?No,But my mother No,But my mother wantswants me to me to _ _.She _ _.

8、She sayssays it it_ _ _ my _.my _.1b1b第十九页，共44页。Listen to an interview about eating Listen to an interview about eating habits.Circle your answer to each habits.Circle your answer to each question.question.Does Tina have good habits?Yes.No.I dont know.Does Tina have good habits?Yes.No.I dont know.Do

9、es Bill have good habits?Yes.No.I dont know.Does Bill have good habits?Yes.No.I dont know.1c1c第二十页，共44页。ActivitiesActivitiesHow oftenHow oftenKatrinaKatrina Bill Billexerciseexerciseeat eat vegetablesvegetableseat fruiteat fruitsleepsleepdrink milkdrink milkeatjunk foodeatjunk foodDrink coffeeDrink

10、coffeeevery dayevery dayhardly everhardly eversometimessometimesevery dayevery dayneverneverninenineninenineevery dayevery daynevernevertwo or three two or three times a weektimes a weekthree or four three or four times a weektimes a weekevery dayevery dayneverneverfour times a dayfour times a dayLi

11、sten again and fill in the blanks.Listen again and fill in the blanks.1 1b b第二十一页，共44页。Student A is the reporter.Student A is the reporter.Student B is Tina or Bill.Student B is Tina or Bill.Ask and answer questions.Ask and answer questions.Then change roles.Then change roles.A:How often do you exer

12、cise?A:How often do you exercise?B:I exercise every day.B:I exercise every day.A:And how often do you?A:And how often do you?1e1e第二十二页，共44页。Rank these activities according to how often you Rank these activities according to how often you think your classmates do them(1=think your classmates do them(

13、1=most oftenmost often,6=6=least oftenleast often).).watch TV watch TV go to the movies go to the movies play computer gamesplay computer gamesexercise or play sportsexercise or play sportsuse the Internetuse the Internetgo camping in the countrygo camping in the country2a2a第二十三页，共44页。Read the artic

14、les fast and find the general idea Read the articles fast and find the general idea of 2b.of 2b.The general idea of the articles is aboutThe general idea of the articles is about.A.how to use the InternetA.how to use the InternetB.free time activities in No.5 High SchoolB.free time activities in No.

15、5 High SchoolC.how to make friendsC.how to make friendsB2a2a第二十四页，共44页。What Do No.5 High School Students Do in Their Free What Do No.5 High School Students Do in Their Free Time?Time?Last month we Last month we askedasked our students our students aboutabout their free their free time activities.Our

16、 question were about time activities.Our question were about exercise,exercise,use of the Internetuse of the Internet and watching TV.and watching TV.Here Here areare(倒装句）倒装句）the results.the results.第二十五页，共44页。We found that(We found that(宾语从句宾语从句(cn j)(cn j)）only only fifteen percent of(fifteen perc

17、ent of(数字数字+percent+of+percent+of 百分之百分之.).)our students exercise every day.our students exercise every day.Forty-five percent exercise four Forty-five percent exercise four toto（至）（至）six times six times（次数）（次数）a week.Twenty percent exercise a week.Twenty percent exercise only one only one toto thre

18、e times a week.three times a week.And twenty percent do not execise at all!And twenty percent do not execise at all!教材解读教材解读1.percent n.1.percent n.百分之百分之。常用于常用于“数词数词+percent+of+sth.”+percent+of+sth.”结构结构,这时后面谓语这时后面谓语(wiy)(wiy)的的单复数由单复数由percentpercent后面跟的名词决定。后面跟的名词决定。EG:1.Twenty percent of the stud

19、ents _(be)here.EG:1.Twenty percent of the students _(be)here.2.Thirty percent of time _(pass).2.Thirty percent of time _(pass).arearepassespasses第二十六页，共44页。We all know that many students often go online,We all know that many students often go online,(上网）上网）but we were surprised that(but we were surp

20、rised that(令我们令我们(w men)(w men)吃惊的是）吃惊的是）ninety percent of them use the Internet every day.ninety percent of them use the Internet every day.The otherThe other（其他的）（其他的）ten percent use it at least three or ten percent use it at least three or four times a week.Most students use it for fun and not fo

21、r four times a week.Most students use it for fun and not for homework.homework.“be surprised+that“be surprised+that从句从句”意为意为“很惊讶很惊讶/吃惊吃惊”be surprised at sth.be surprised at sth.意为意为“对某事感到惊讶对某事感到惊讶”;”;toto ones surprise ones surprise意为意为“令人惊奇的是令人惊奇的是”。EG:1.EG:1.我奇怪我奇怪,你是唯一一个你是唯一一个(y)(y)来的人。来的人。I_ _ _

22、 you are the only one here.I_ _ _ you are the only one here.2.2.我对他的回答感到吃惊。我对他的回答感到吃惊。I _ _ _ at his answer.I _ _ _ at his answer.3.3.令他惊讶的是，这个女孩是盲人。令他惊讶的是，这个女孩是盲人。_ _ _,the girl was blind._ _ _,the girl was blind.amamsurprisedsurprisedthatthatwaswas surprisedsurprisedatatToTosurprisesurprisehishis第

23、二十七页，共44页。The The answers toanswers to our questions about our questions about(+doing)(+doing)watchingwatchingtelevision were also interesting.Only two percenttelevision were also interesting.Only two percentof the students watch TV one to of the students watch TV one to three times a week.three tim

24、es a week.Thirteen Thirteen percent watch TV four to six timespercent watch TV four to six timesa week.And eighty-five percent watch TV every day!a week.And eighty-five percent watch TV every day!AlthoughAlthough many students many students like to like to watch sports,gamewatch sports,gameshows are

25、 shows are the mostthe most（最）（最）poplar.poplar.2.although=though 2.although=though 虽然虽然;尽管尽管;即使即使(jsh)(jsh)。引导让步状语从句。引导让步状语从句。although=though although=though作连词作连词,意为意为“虽然虽然,尽管尽管”不能与不能与butbut连用连用,即用了即用了although/thoughalthough/though就不能再用就不能再用but.but.用了用了but,but,就不能用就不能用although/though.although/thoug

26、h.EG:EG:尽管他身体很差，但是他还是努力工作。尽管他身体很差，但是他还是努力工作。1._ he is in poor health,he works hard.1._ he is in poor health,he works hard.2.He is in poor health,_ he works hard.2.He is in poor health,_ he works hard.3.the most+3.the most+多音节，表最高级多音节，表最高级 EG EG：1.1.最漂亮的女生最漂亮的女生_ _ _girl._ _ _girl.2.2.最有趣的书最有趣的书_ _ _

27、book._ _ _book.Although/thoughAlthough/thoughbutbutthethemostmostbeautifulbeautifulthethemostmostinterestinginteresting第二十八页，共44页。It is good It is good toto relax by(+doing)using the Internet or watching relax by(+doing)using the Internet or watching game shows,but we think the best way game shows,b

28、ut we think the best way toto relax is through relax is through exercise.It is healthy for the mind and the body.Exercise such exercise.It is healthy for the mind and the body.Exercise such as(as(例如例如(lr)(lr)）playing sports is fun,and you can spend time playing sports is fun,and you can spend time w

29、ith your friends and family aswith your friends and family as（当）（当）you play together.And you play together.And remember,“So start exercise before its too late!”remember,“So start exercise before its too late!”4.mind 4.mind 头脑头脑,心智心智EG:He has a very sharp mind.EG:He has a very sharp mind.他的头脑很敏锐。他的头脑

30、很敏锐。EG:mind v.EG:mind v.介意介意,当心当心,关心。关心。+doing+doing 用来客气地提出请求用来客气地提出请求,或者用来提出询问、征求对方或者用来提出询问、征求对方(dufng)(dufng)意见。意见。Do/Would you mind(ones)doing?Do/Would you mind(ones)doing?EG:Do you mind _(close)this window?EG:Do you mind _(close)this window?【固定搭配】【固定搭配】1.1.下决心下决心:2.2.改变主意改变主意:3.3.不必担心不必担心/没关系没关

31、系:5.by+v.-ing5.by+v.-ing构成方式状语构成方式状语,表示表示“通过某种方式、手段做某事通过某种方式、手段做某事”。EG:He succeeded by _(work)hard.EG:He succeeded by _(work)hard.closingclosingmake up ones mindmake up ones mindchange ones mindchange ones mindnever mindnever mindworkingworking第二十九页，共44页。根据汉语意思完成根据汉语意思完成(wn chng)(wn chng)句子句子 1.1.关于

32、我们问的看电视的问题的回答是很有趣的。关于我们问的看电视的问题的回答是很有趣的。TheThe our questions about watching television were our questions about watching television were interesting.interesting.2.2.调查显示调查显示,许多孩子上网仅仅是为了娱乐。许多孩子上网仅仅是为了娱乐。According According toto the survey,lots of the survey,lots of childrenchildren justjust .3.3.我喜欢运

33、动我喜欢运动,例如跑步和打网球。例如跑步和打网球。I like sports,I like sports,and playing tennis.and playing tennis.4.4.我们学校多数学生每周锻炼三到五次。我们学校多数学生每周锻炼三到五次。Most students in our school Most students in our school at least at least _a week._a week.5.5.这对我的眼睛有好处。这对我的眼睛有好处。ItIt my eyes.my eyes.is good foris good foranswersanswers

34、 totogo onlinego onlinefor funfor funsuch as runningsuch as runningexerciseexercisethree to five timesthree to five times第三十页，共44页。Complete the pie charts.Complete the pie charts.158590202021310452b2b第三十一页，共44页。1.How many students do not exercise at all?1.How many students do not exercise at all?2.H

35、ow many students use the Internet every day?2.How many students use the Internet every day?3.How often do most students watch TV?What do they 3.How often do most students watch TV?What do they usually watch?usually watch?20%of the 20%of the students do not exercise at all.students do not exercise at

36、 all.90%of the students use the Internet every day.90%of the students use the Internet every day.Most students watch TV every day.They usuallyMost students watch TV every day.They usuallywatch sports,game shows.watch sports,game shows.2c2c第三十二页，共44页。4.What does the writer think is the best way 4.Wha

37、t does the writer think is the best way to relax?Why?to relax?Why?5.Do you think the students at No.5 are healthy?5.Do you think the students at No.5 are healthy?Why or why not?Why or why not?Exercise.Because it is healthy for the mind and Exercise.Because it is healthy for the mind and the body.the

38、 body.No,I dont think so.Because they watch TV moreNo,I dont think so.Because they watch TV more and exercise less.and exercise less.第三十三页，共44页。Write sentences with the percentages using always,Write sentences with the percentages using always,usually or sometimes.usually or sometimes.1.90%:_ 1.90%:

39、_ 2.85%:_ 2.85%:_ 3.45%:_3.45%:_ 4.10%:_4.10%:_ 5.13%:_5.13%:_ 6.2%:_6.2%:_ 2d2dNinety percent of the Ninety percent of the students students alwaysalways use the Internet.use the Internet.第三十四页，共44页。play computer gamesplay computer gamesread books read books go shoppinggo shoppingdraw picturedraw p

40、ictureplay sportsplay sports2e2eHow often do you.?How often do you.?1-3 times a week1-3 times a week4-6 times a week4-6 times a weekevery dayevery dayNames of classmatesNames of classmates第三十五页，共44页。Look at the information in the chart Look at the information in the chart and complete the report.and

41、 complete the report.Activities Days a yearActivities Days a yearExercise 365Exercise 365Read books 365Read books 365Watch TV Watch TV forfor over 2 hours 320 over 2 hours 320Drink juice 210Drink juice 210Eat hamburgers 95Eat hamburgers 95Help with housework 20Help with housework 20Stay up late 15St

42、ay up late 15Go to the dentist Go to the dentist 0 03a3a第三十六页，共44页。3a3aJane is a 16-year-old high school student in the United Jane is a 16-year-old high school student in the United States.American Teenager magazine asked her about her States.American Teenager magazine asked her about her habits.Ja

43、ne has a lot of good habits.habits.Jane has a lot of good habits.She always exercises and she reads books _ .She always exercises and she reads books _ .Also,she _ drinks juice and she _ stays up Also,she _ drinks juice and she _ stays up late.However,she has some bad habits,too.late.However,she has

44、 some bad habits,too.She _ watches TV for more than(She _ watches TV for more than(超过超过(chogu)(chogu)）two hours a day,and she _ eats hamburgers.two hours a day,and she _ eats hamburgers.Her parents are not very happy because she _ Her parents are not very happy because she _ helps with housework and

45、 she _ goes helps with housework and she _ goes toto the the dentist for teeth cleaning.She says she is afraid!dentist for teeth cleaning.She says she is afraid!every dayevery dayoftenoftenhardlyhardlyusuallyusuallysometimessometimeshardlyhardlynevernever第三十七页，共44页。Complete the chart with your own C

46、omplete the chart with your own information.In the last column,use information.In the last column,use expressions likeexpressions like always,every day,always,every day,twice a week twice a week andand never.never.Activities Activities How often?How often?Good habitsGood habitsBad habitsBad habits3b

47、3b第三十八页，共44页。Write a report about your good and bad Write a report about your good and bad habits.Say how often you do things.habits.Say how often you do things.Use the report in 3a as an example.Use the report in 3a as an example.3c3cDo you have any good habits or bad habits?Do you have any good ha

48、bits or bad habits?For me,I have some good habits.I always get up early in For me,I have some good habits.I always get up early in the morning.I exercise four to six times a week.And I do the morning.I exercise four to six times a week.And I do homework every day.I only watch TV once a week.However,

49、I homework every day.I only watch TV once a week.However,I have some bad habits,too.I often eat junk food and I have some bad habits,too.I often eat junk food and I hardly ever eat vegetables.Sometimes I stay up late.hardly ever eat vegetables.Sometimes I stay up late.As students,we should have some

50、 good habits.As students,we should have some good habits.They are good for our health.They are good for our health.第三十九页，共44页。Take the health quiz.Take the health quiz.1.How often do you eat breakfast?1.How often do you eat breakfast?a.Never.b.A few times a week.c.Almost every day.a.Never.b.A few ti