Unit 2How often do you exercise?100%alwaysusuallyoftensometimeshardly ever 80%never0% 60% 20% 5%提示：频率副词在句中的位置是：提示：频率副词在句中的位置是：实义实义动词之前动词之前, be动词或助动词之后。动词或助动词之后。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？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%Listen. Cheng Tao is talking about how often he does these activities. Number the activities 1-5 in the order you hear them.2aActivities_ a. go to the movies_ b. watch TV_ c. shop_ d. exercise_ e. read13254Listen again. Match the activities in 2a with how often Cheng Tao does them. 2bHow oftenevery dayonce a weektwice a weekthree times a weekonce a monthtwice a monthActivitiesa. go to the moviesb. watch TVc. shopd. exercisee. read1. three times a weektime 次数次数time and time again 千万次的千万次的three or four times a week 一周三四次一周三四次表示一周表示一周/月月/年多少次年多少次, 可以用可以用. times a week / month / year，注意有两个词有单独的表示法，注意有两个词有单独的表示法，“一次一次”用用“once”, “两次两次”用用“twice”。2. once , twice, three times 等次数的表达法。等次数的表达法。 1) 这三个词都表示这三个词都表示_，once是是_，twice是是_，除了一次，两次，其，除了一次，两次，其他的次数都表达成他的次数都表达成_。 如：三次是如：三次是_ ，五次是五次是_。一次一次次数次数两次两次three times数字数字 + timesfive times2) 这些表次数的词后与一段时间连用，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，即动作表示动作多长时间发生几次，即动作 的的_. 3) 翻译：翻译： 两周一次两周一次 _ 一年两次一年两次 _ 一一个月个月两次两次 _once two weeks频率频率once a yeartwice a monthsometimes与几个形似的词的区别与几个形似的词的区别a. sometime是副词是副词, “在某个时候在某个时候”, “某时某时” Will you come again sometime next week? She was there sometime last year. b. some time是名词词组是名词词组, 意为意为“一段时间一段时间”，做时间状语用。做时间状语用。 I will stay here for some time. He worked on the trouble for some time. c. some times是名词词组是名词词组, 意为意为“几次几次, 几倍几倍”。 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.2cActivitiesHow oftenwatch TVuse the Internetread English booksgo to the moviesexerciseevery dayfour times a weektwice a weekevery dayonce a monthHow 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?How often do you read English books?I read English booksWhats your favorite book?.How often do you read it?How often do you?I . Whats your?.twice a day 一天两次一天两次How often?对频率提问How often ? 回答次数+范围once/ twice/ three times a weeka weekMon.Tues.Wed.Thur.Fri.Sat.Sun.How often_do you do your homework?I do my homework every day.how often: 多久一次 对频率提问a weekMon.Tues.Wed.Thur.Fri.Sat.Sun.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a weekMon.Tues.Wed.Thur.Fri.Sat.Sun.How oftendo you go skateboarding?I go skateboarding twice a week.twice: adv. 两次twice a week: 一周两次A weekMon.Tues.Wed.Thur.Fri.Sat.Sun.How oftendo you exercise?I exercise three times a week.time: n. 次数（可数）three times a week: 一周三次a monthSeptemberHow often_ do you surf the Internet?I surf the Internetfour times a month.练习：补全单词练习：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_.eekendsnce wicexercisesrogrammes5. The weather here is so cold, I can h_ stand it.6. These two pictures have no _(区别区别).7. _ (虽然虽然) Mr. White is very old, he goes to work every day.8. Do you have a _(健康健康) lifestyle?differenceshealthyAlthoughardlyHomework 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.