Unit2How-often-do-you-exercise知识讲解及练习.doc

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not…at all 一点儿也不…… in one’s 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 It’s+ adj.+ to do sth. 做某事……的。 ask sb. about sth. 向某人询问某事 by doing sth. 通过做某事 What’s 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 ever ; never 等。 2. how often 意为“多一次，用来提问在某一段时间内进行某个动作的频率回答通常是 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。 --- 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 you shop？ —I shop once a week. 3. 频副词：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：频副词在句中通常放在助动词、情态动词之后，在实义动词之 前。 例：She is often late for school. He always helps me. 课堂巩固练习、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