2013年新人教版八年级英语上册第二单元SectionA2a.ppt
Unit 2How often do you exercise?,Section A2a-2c,100%,always,usually,often,sometimes,hardly ever,80%,never,0%,60%,20%,5%,提示：频率副词在句中的位置是：实义动词之前,be动词或助动词之后。,Game,I usually plays the guitar on weekends.,I sometimes plays the guitar on weekends.,I always plays the guitar on weekends.,比一比，看谁说得又快又好？,100%,80%,20%,I usually does my homework on weekends.,I often do my homework on weekends.,I sometimes do my homework on weekends.,80%,60%,20%,I sometimes exercise on weekends.,I hardly ever exercise on weekends.,I never exercise on weekends.,20%,0%,5%,Listening,Listen.Cheng Tao is talking about how often he does these activities.Number the activities 1-5 in the order you hear them.,2a,1,3,2,5,4,Listen again.Match the activities in 2a with how often Cheng Tao does them.,2b,1.three times a week,time 次数time and time again 千万次的three or four times a week 一周三四次表示一周/月/年多少次,可以用.times a week/month/year，注意有两个词有单独的表示法，“一次”用“once”,“两次”用“twice”。,2.once,twice,three times 等次数的表达法。1)这三个词都表示_，once是_，twice是_，除了一次，两次，其他的次数都表达成_。如：三次是_，五次是_。,一次,次数,两次,three times,数字+times,five times,2)这些表次数的词后与一段时间连用，表示动作多长时间发生几次，即动作 的_.3)翻译：两周一次 _ 一年两次 _ 一个月两次 _,once two weeks,频率,once a year,twice a month,sometimes与几个形似的词的区别a.sometime是副词,“在某个时候”,“某时”Will you come again sometime next week?She was there sometime last year.b.some time是名词词组,意为“一段时间”，做时间状语用。I will stay here for some time.He worked on the trouble for some time.,c.some times是名词词组,意为“几次,几倍”。I met him some times in the street last month.The factory is some times larger than that one.,How often do you do these activities?Fill in the chart and then make conversations.,2c,every day,four times a week,twice a week,every day,once a month,How often do you watch TV?,I watch TV every day.,Whats your favorite program?,Animal world.,How often do you watch it?,Twice a week.,How often do you use the Internet?,I use the Internet,Whats your favorite website?,Pairwork,How often do you read English books?,I read English books,Whats your favorite book?,.,How often do you read it?,How often do you?,I.,Whats your?,.,twice a day 一天两次,How often?,Presentation,对频率提问How often?回答次数+范围once/twice/three times a week,How often,_do you do your homework?,I do my homework,every day.,how often:多久一次 对频率提问,How often,_do you go to the movies?,I go to the movies,once a week.,once:adv.一次once a week:一周一次,How often,do you go skateboarding?,I go skateboarding,twice a week.,twice:adv.两次twice a week:一周两次,How often,do you exercise?,I exercise,three times a week.,time:n.次数（可数）three times a week:一周三次,How often,_ do you surf the Internet?,I surf the Internet,four times a month.,练习：补全单词,1.-What do you usually do on w_?-I often watch TV.2.-How often does she shop?-O_ or t_ a week.3.Grandpa is pretty healthy because he e_ every day.4.Animal World is my favorite TV p_.,eekends,nce,wice,xercises,rogrammes,5.The weather here is so cold,I can h_ stand it.6.These two pictures have no _(区别).7._(虽然)Mr.White is very old,he goes to work every day.8.Do you have a _(健康)lifestyle?,differences,healthy,Although,ardly,Homework,Keep a weekend diary showing what you do on weekend.You can write down what they do from the time you get up until you go to bed.,Thank You!,
