1、Section B(2a-2e)Unit 2 How often do you exercise?学练优八年级英语上（RJ）教学课件How often do you?ReviewHow often do you?exercise go to the movies Use the Internet or go online go camping in the country watch TV2a Rank these activities according to how often you think your classmatesdo them(1=most often,6=least of
2、ten).watch TV go to the movies play computer games exercise or play sports use the Internet go camping in the countryPre-readingNew words result n.percent n.online adj.television n.although prep.through conj.mindn.结果；后果百分之在线的；联网的电视节目；电视机虽然；尽管；即使以；凭借；穿过头脑；心智body n.such adj.&pron.such as together adv.
3、die v.writer n.身体这样的；那样的；类似的例如；像这样在一起；共同消灭；灭亡；死亡作者；作家What Do No.5 High School Students Do in Their Free Time 1.Last month we asked our students about their free time activities.Our questions were about exercise,use of the Internet and watching TV.Here are the results.2.We found that only fifteen per
4、cent of our students exercise every day.Forty-five percent exercise four to six times a week.Twenty percent exercise only one to three times a week.And twenty percent do not exercise at all!3.We all know that many students often go online,but we were surprised that ninety percent of them use the Int
5、ernet every day.The other then percent use it at least three or four times a week.Most students use it for fun and not for homework.4.The answers to our questions about watching television were also interesting.Only two percent of the students watch TV one to three times a week.Thirteen percent watc
6、h TV four to six times a week.And eighty-five percent watch TV every day!Although many students like to watch sports,game shows are the most popular.5.It is good to relax by using the Internet or watching game shows,but we think the best way to relax is through exercise.It is healthy for the mind an
7、d the body.Exercise such as playing sports is fun,and you can spend time with your friends and family as you play together.And remember,“old habits die hard”.So start exercising before its too late!While you readRead Para.2 and answer the questions below.3.How many percent of the students do not exe
8、rcise at all?1.How many percent of the students exercise every day?2.How many percent of the students exercise 4-6 times a week or 1-3 times a week?,While you readRead Para.3,answer the questions below.1.How many percent of the students use the Internet every day?2.How many percent of the students u
9、se the Internet three or four times a week?While you readRead Para.4,answer the questions below.1.How many percent of the students watch TV every day?2.How many percent of the students watch TV 1-3 times a week or 4-6 times a week?154 times a week8590202021310452b Listen to the article and complete
10、the pie charts on the next page.While-reading2dAccording 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
11、 watch TV.Forty-five percent of the students usually exercise.Ten percent of the students sometimes use the Internet.Thirteen percent of the students usually watch TV.Two percent of the students sometimes watch TV.2c Read the article again and answer the questions.1.What percent of the students do n
12、ot exercise at all?2.What 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.Post-reading3.How often do most students watch TV?What do they usually watch?4.What does the writer think is th
13、e best way to relax?Why?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.5.Do you think the students at No.5 are health
14、y?Why or why not?I think they are unhealthy.Because most of students watch TV and go online.They hardly ever exercise.What does the passage mainly talk about?This passage mainly talks about what No.5 High School students do in their free time.It tells us that most students often go online and watch
15、TV,and only some students sometimes do exercise.1.We found that only fifteen percent of our students exercise every day.percent 名词，意为“百分之”e.g.Eighty percent of the students in our class exercise every day.我们班里80%的学生每天都锻炼。【注意】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
16、苹果都坏了。Twenty percent of the meat is in the fridge.20%的肉都在冰箱。2.And twenty percent do not exercise at all!not at all 意为“一点也不”，not应和be动词、助动词或情态连用。e.g.The story isnt interesting at all.那个故事一点也没有趣。They didnt enjoy the vacation at all.他们根本不喜欢那次旅行。The old man cant use the computer at all.那位老人一点也不会用电脑。3.The
17、 answers to our questions about watching television were also interesting.对我们提出的有关看电视的问题的答案也挺有意思。1）句子主语为 the answers，故谓语用 were。2）表示“的答案”要用“answer to”如：Theres no easy answer to this problem.这个问题没有简单的答案。Her answer to your question is a big“NO”!她对你所提的问题的答案是一个大大的“不”字！3）表示“有关的（问题）”用question about如：He ask
18、ed us some questions about our daily habits.他问了一些有关我们日常习惯的问题。Her questions about you were not so friendly.她有关你的那些问题并不那么友善。4.Although many students like to watch sports,game shows are the most popular.虽然很多学生喜欢看体育节目，但游戏类节目是最受欢迎的。although 为连词，意为：“虽然，尽管”。注意：在英语中，当表示“虽然，但是.”这样的意思时，although和but不能在同一个句子中使用
19、。也就是说，在一个句子中，有although就没有but，反之亦然。如：Although the car is old,it still runs well.=The car is old,but it still runs well.这辆小车旧了，但是依然跑得不错。5.Exercise such as playing sports is fun such as 意为“像这样”，表示列举。结构常为：名词+such as +例子 e.g.She likes animas such as rabbits and birds.她喜欢像兔子、小鸟这样的小动物。2e Choose one of thes
20、e 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 sports1Key vocabulary：percent，online，although，through，such as，not.at all，in ones free time2We known about what school students do in their free time.SummarySummary Review the new words in the period.Review the language points in 2b.Work out the exercise on the students book.Homework
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