（成都专版）八年级英语上册 Unit 2 How often do you exercise Section B（2a2e）教学课件 （新版）人教新目标版[共23页]

Period4Section B(2a-2e)Unit 2 How often do you exercise?学习目标学习目标 Key words&phrases:result，percent，online，television，although play computer games，use the Internet，go camping，go online Key sentences:1.We found that only fifteen percent of our students exercise every day.2.Although many students like to watch sports,game shows are the most popular.3.Its good to relax by using the Internet 4.How many students do not exercise at all?New words and phrasesresult n.percent n.online adj.television n.although prep.through conj.mind n.结果；后果结果；后果百分之百分之在线的；联网的在线的；联网的电视节目；电视机电视节目；电视机虽然；尽管；即使虽然；尽管；即使以；凭借；穿过以；凭借；穿过头脑；心智头脑；心智body n.such adj.&pron.such as together adv.die v.writer n.身体身体这样的；那样的；类似的这样的；那样的；类似的例如；像例如；像这样这样在一起；共同在一起；共同消灭；灭亡；死亡消灭；灭亡；死亡 作者；作家作者；作家How often do you?How often do you?I sleep eight hours every night.How many hours do you sleep every night?be good for our healthbe bad for our health2aRank these activities according to how often you think your classmatesdo them(1=most often,6=least often).watch TV go to the movies play computer games exercise or play sports use the Internet go camping in the country15154 times a week85859090202020202 21313101045452b Read the article and complete the pie charts on the next page.2cRead the article again and answer the questions.1.How many percent of the students do not exercise at all?2.How many percent of the students use the Internet every day?Twenty percent of the students do not exercise at all.Ninety percent of the students use the Internet every day.3.How often do most students watch TV?What do they usually watch?4.What does the writer think is the best way to relax?Why?5.Do you think the students at No.5 are healthy?Why or why not?Most students watch TV every day.They usually watch game shows.The writer thinks exercise is the best way to relax because its healthy for the mind and body,and you can spend time with your friends and family as you play together.1.notat all 用于否定句，意为用于否定句，意为“根本不、一根本不、一点也不点也不”。如：如：It wasnt difficult at all.这一点也不难。这一点也不难。There was nothing to eat at all.根本没什么可吃的。根本没什么可吃的。注：注：在否定句中，在否定句中，at all 可位于句末，也可可位于句末，也可 跟在否定词后。如：跟在否定词后。如：He isnt tired at all./Hes not at all tired.他一点也不累。他一点也不累。Language Points 另外，在口语中单独说另外，在口语中单独说 not at all,可用来回可用来回答感谢或道歉。如：答感谢或道歉。如：A：Thank you very much.多谢你了。多谢你了。B：Not at all.不客气。不客气。A：Im sorry to keep you waiting.对不起，让你久等了。对不起，让你久等了。B：Oh,not at all.噢，没关系。噢，没关系。2.at least 至少至少 例如：例如：We should brush our teeth at least twice a day.我们每天应该至少刷两次牙。我们每天应该至少刷两次牙。A good cigarette will smoke at least ten minutes.一支好烟至少可以抽一支好烟至少可以抽10分钟。分钟。反义短语反义短语：at most 至多至多3.although 虽然；尽管虽然；尽管 例如：例如：Although my uncle is old,he looks very strong and healthy.我的叔叔虽然老了，但他看上去还是很健壮。我的叔叔虽然老了，但他看上去还是很健壮。注意：注意：although引导的从句不能与引导的从句不能与but,however连用，但可与连用，但可与yet,still连用。连用。4.It is+adj.to do sth.做某事是做某事是的的 例如：例如：It is interesting to play computer games.玩电脑很有趣。玩电脑很有趣。-It is very important _ make a plan before a new term.-Yes.You must try to make it carefully.A.of B.for C.toC5.spend v.花费；消耗花费；消耗 例如：例如：How did you spend your summer vacation?你是如何度过暑假的？你是如何度过暑假的？I spent 5 yuan on this book.这本书花了我五十元。这本书花了我五十元。It usually takes me half an hour to do my homework.做作业通常花费我半小时的时间。做作业通常花费我半小时的时间。Students often spend one and a half hours(in)doing homework.学生们经常花一个半小时的时间做作业。学生们经常花一个半小时的时间做作业。I paid 10 yuan for this book.我买这本书付了十元钱。我买这本书付了十元钱。take,spend,cost&pay 结论结论：l take“花费花费(时间时间)”；主语为物。；主语为物。It takes sb.some time to do sth.“花费某人花费某人时间来做某事时间来做某事”。l spend“花费花费(时间时间/金钱金钱)”主语为人；主语为人；spend on sth.“买某物花了买某物花了钱钱”；spend+time+(in)doing“花费多少时间来做某事花费多少时间来做某事”；可以与可以与 it takes sb.some time to do sth.转换。转换。l pay“付款付款”；主语为人；主语为人；pay for“花钱买某物花钱买某物”2dAccording to the article and the pie charts,write sentences with the percentages using always,usually or sometimes.1.90%:_2.85%:_3.45%:_4.10%:_5.13%:_6.2%:_Ninety percent of the students always use the Internet.Eighty-five percent of the students always watch TV.Forty-five percent of the students usually exercise.Ten percent of the students often use the Internet.Thirteen percent of the students usually watch TV.Two percent of the students sometimes watch TV.2eChoose one of these free time activities or think of your own.Then ask your classmates how often they do this activity and make a pie chart.Show the pie chart to your class.play computer gamesread booksgo shoppingdraw picturesplay sportsHow often do you?Names of classmates1-3 times a week4-6 times a weekevery day1Key vocabulary：percent，online，although，through，such as，not.at all，in ones free time2Sentences：Although many students like to watch sports，game shows are the most popular.Summary Review the new words in the period.Review the language points in 2b.Work out the exercise on the students book.