约1710字。

　　Work hard，to be a better one!                  
　　Unit 2 . How often do you exercise ?
　　Part One：单元知识思维导图
　　思维导图 交际话题 Free time activities
　　必背单词
　　（32） hardly,through,maybe,although,less,none,housework
　　ever,once,twice,full,Internet,least,coffee,percent
　　online,health,television,mind,such,together,die
　　writer,dentist,body,magazine,however
　　than,almost,point,result
　　重点短语
　　（15） how often,,play sports,hardly ever,once a weech as
　　go shopping,go camping,at least,more than,swing dance,
　　junk food,how many,less than,be good for,use the Internet
　　a lot of,go to the dentist
　　经典句型（6） 1.-how often does he watch TV?
　　-He hardly ever watches TV.
　　2- What does she do on vacation?.
　　-She sometimes goes shopping.
　　3.And twenty percent do not exercise at all.
　　4,She says it’s good for my health.
　　5.Although many students like to watch sports.
　　6.But my mother wants me to drink it.
　　核心语法
　　(2) How often…？
　　频率副词的用法
　　Part Two：知识点详解
　　Section A
　　1,-How often do you watch TV?
　　-I watch TV every day.
　　(1)How often意为“多长时间一次，每隔多久”，是对句子中的often,usually,every day,sometimes,never,once a week等表频率的词或短语提问，多用于一般现在时，如：
　　-How often do you go to see a film?
　　-Once a week.
　　(易错点详解）①，“How”开头的提问方式：
　　________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
　　例1，-_______do you eat fast food?
　　-Twice a week.(2014年南充中考24题）
　　A，How long   B,How soon   C,How often
　　2，Hi,Claire,are you free next week?
　　Are you free…？相当于Do you have(any) free time…？
　　Be free意为“有空的，空闲的”。Free意为“自由的，空闲的”。如：
　　She spends her free time shopping.
　　(拓展）
　　free 形容词，“免费的”
　　There is no such thing as a free lunch.
　　动词，“释放，免除”
　　The policemen plan to free the criminal.
　　例2，I am always____ at lunchtime,You can come to visit me.(2015年五中4月月考23题)
　　A,hungry    B,happy     C,free     D,glad
　　3，They often help with housework?
　　Help with意为’在某方面帮助”，是固定短语。也可写作help sb with sth,”在某一方面帮助某人”。
　　anything special意为“特别的事情”。
　　(拓展）help短语汇集：
　　help help sb(to)do sth
　　help oneself to sth
　　help sb with sth
　　help sb out
　　help sb into/out of
　　can't help doing sth
　　with the help of
　　例3，My teacher often ____me____my English.
　　A,help;with  B,help;of   C,helping;of  D,helps;with
　　4,-Do you go shopping?
　　-No,I never go shopping.
　　(拓展）“go+Ving”形式主要表达两种含义
　　①，表示进行群众性文体娱乐活动。
　　shopping go dancing
　　fishing hiking
　　bike riding camping
　　sightseeing swimming
　　②，表示从事某种职业
　　farming go nuring
　　babysitting teaching
　　（拓展）“go+Ving”=“go for a/an+n”
　　例4，将下面句子中的汉语部分译成英语，注意使用适当的形式。