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1、 一、重点短语 help with housework 帮助做家务 on weekends 在周末 how often 多久一次 hardly ever 几乎从不 once a week 每周一次 twice a month 每月两次 be free 有空 go to the movies 去看电影 use the Internet 用互联网 swing dance 摇摆舞 play tennis 打网球 stay up late 熬夜；睡得很晚 go to bed early 早点睡觉 play sports 进行体育活动 be good for 对有好处 go camping 去野营 no
2、tat all 一点儿也不 in ones free time 在某人的业余时间 the most popular 最受欢迎的 such as 比如；诸如 old habits die hard 积习难改 go to the dentist 去看牙医 more than 多于；超过 less than 少于 at least 至少 have dance and piano lessons 上舞蹈课和钢琴课 二、句型荟萃 help sb. with sth. 帮助某人做某事 How about? .怎么样？/ 好不好？ want sb. to do sth. 想让某人做某事 How many+可
3、数名词复数+一般疑问句？ 有多少? 主+find+that从句. 发现 spend time with sb. 和某人一起度过时光 Its+ adj.+ to do sth. 做某事是的。 ask sb. about sth. 向某人询问某事 by doing sth. 通过做某事 Whats your favorite? 你最喜爱的是什么？ the best way to do sth. 做某事的最好方式三、单元语法频度副词1.频度副词：表示动作发生间隔（既频率）的副词。它们有：always ; usually ; often ; sometimes ; seldom ； hardly ev
4、er ; never 等。2. how often 意为“多久一次”，用来提问在某一段时间内进行某个动作的频率。其回答通常是 often、sometimes、never、hardly ever、always、once a day、once a week等等表示频率的副词或是短语。 例: - She hardly ever watches TV. （划线提问） - How often does she watch TV? 例句理解：1. What do you usually do on weekends? I often go to the movies. 2. How often do yo
5、u shop？ I shop once a week.都用how often进行提问 3. 频度副词：表示频率不确定 频率短语表示频率确定表示确定的频率短语 every day/week/month/year 每天/周/月/年 once a week 每周一次 twice a week 每周两次 twice a month 一月两次 three times a day 一天三次注：三次或三次以上一般用“基数词times”表示。 （3）在句中位置：频度副词在句中通常放在be动词、助动词、情态动词之后，在实义动词之 前。例：She is often late for school.He alway
6、s helps me.课堂巩固练习: 一、对划线部分提问 1）He always plays basketball after school. _ does he always _ after school? 2) They hardly ever play football. _ _ _ they play football? 二、单项选择( ) 1. -How often _ she exercise? -Twice a week. A. do B. does C. doing D. did( ) 2. I _ like to drink milk. A. not B. doesnt C.
7、 dont D. no( )3.-_do you go swimming ? -Sometimes. A. How often B. How long C. how many D. How old( )4. Katrina watches TV once _ week. A. a B. the C. an D. 知识扩展：1. how long 多久（用来提问有多长时间） 回答通常是more than two weeks、for a week、ten years等表示一段时间的状语。 例：How long did you study English in China? For three we
8、eks.2. how soon 用来提问“需要多长时间才会”，指某一动作要多长时间以后才能完成或发生。 回答通常是“in一段时间” 例：How soon will you come back？ In a week.【活学活用】用how far, how often, how long填空。 1) does she usually exercise? 2) is it from your home to the school? 3) have you been away from (离开) your hometown? 4.【区别】How often和How many times How oft
9、en用来提问某个动作间隔多久发生一次，即询问动作发生的频率。通常对一些表示频 率的副词进行提问；也可以对频度短语进行提问。 How many times意思是“多少次”，用来提问做某事的次数，往往就once, twice, three times等词语进行提问。典型例题：1）Li Ming does his homework every day. （就划线部分提问）How often does Li Ming do his homework? 解析：every day属于频度短语，就频度短语提问用How often.2）The old man went to the zoo three tim
10、es this year.（就划线部分提问）How many times did the old man go to the zoo this year? 解析：这里就次数提问用how many times.课堂巩固：一、用所给词的正确形式填空 1. I watch TV _ (one) a week. 2. He watches TV _ (two) a week. 3. Katrina _ (exercise) every day. 5.语法归纳特殊疑问词How的用法家族成员称呼职责how1)怎样；怎么2)多么1)指询问方式、方法；程度2)构成感叹句how old几岁询问年龄多大。how many多少询问可数名词的数量。how much1)多少(how many的孪生兄)2)多少钱1)询问不可数名词的数量2)询问价钱或钱的数量how far多 远询问两地之间的距离。how often多久一次(表频率)询问做某事多长时间一次。how long1)多久2)多长1)询问做某事花了多长时间2)询问物体的长度how tall多高询问人或物的高度how fast多快询问速度四、单元知识讲解Section A 1. help with housework 帮助做家务 （教材第9页） （1） help with sth. 意为“帮助做某事” 拓展：help sb.
