【初中英语】八年级上册Unit 2 How often do you exercise?单元知识点

 一、重点短语

1、how often 

2、hardly ever 

3、once a day 

4、twice a month 

5、stay up(late)

6、at least 

7、such as 

8、more than 

9、less than 

10、be good for

11、go camping 

12、play computer games 

13、free time activities

14、not at all 

15、three times a year 

16、go to the movies

17、use the Internet

18、at least 

19、help with housework

20、healthy habits 

21、junk food

22、go to the dentist 

23、fifity percent of the students

24、the answer to the question 

25、the best way to do sth 

26、be free=have time

27、every day 28、play sports 

29、the mind and the body

二、重点句型

1、.---What do you usually do on weekends?---I always exercise.

2、They often help with housework. 

3、---How often does he watch TV?---He hardly ever watches TV. 

4、Forty-five percent of the students exercise four to six times a week. 

5、She says it's good for my health. 

6、Although many students like to watch sports show, game shows are the most  popular. 

三、语法

频度副词的用法

四、重要考点

1、----How often do you usually go shopping? —Sometimes/Twice a week. 有时候/一周两次.

 (1)go shopping 意为“去购物”。go+ v- ing ：表示进行某项活动。

如 ：go swimming/ shopping/skating/skiing/fishing/climbing/hiking

(2)频率副词：always，usually, often, sometimes , hardly ever, never

(1)sometimes：有时候；sometime：某时；

some times：许多次/倍; some time：一段时间

(2)hardly(adv)：几乎不 

hard

硬的；困难的；勤奋的 a hard stone

努力地； 猛烈地 study/rain hard

(3)how often 表示“多久一次”，是对动作的频率进行提问。其回答通常有：

频率副词： always, usually, often, sometimes, hardly ever, never

次数＋时间段： 如：once a week

every ＋时间段： every day(每天)

注意：表示“一次或两次”时，一般用 once 和 twice 表示。如：once a month

表三次或以上”时，则用“数词＋times”结构。如：five times a year(一年五次)

注：how many times：“多少次”，其答语表示次数。如：once ,twice，three times等

2、She says it's good for my health.她说那对我的健康有益。

(1)be good for：“对……有好处”。 如：Doing exercise is good for our health.

(2)be good at (doing sth.)：“擅长于……” 如 ：He is good at playing football. 

(3)be good with：“与……相处好” 如： The teacher is good with his students.

3、go online = use the Internet ：上网

4、more than=over “超过” 

5、keep healthy = stay healthy = be healthy=keep in good health=be in good health：保持健康

6、ask sb.to do：要求…做某事 Teacher asked me to clean the classroom. 

ask sb.not to do sth.：叫…不要做某事

ask sb about sth.询问某人某事

ask sb.for sth.：向某人要求… 如：ask teacher for help

7、 help sb.with sth.如：They help me with this problem. help sb.(to)do. 如：They help you(to)solve this problem. 

8、surprise

(n)惊讶：to one's surprise 令某人惊讶的是

(v)使惊奇、意外：

 be surprised at sth. 对… 感到意外

 be surprised to do sth. 惊讶做某事

 be surprised that + 从句

如 ：I was surprised at the news = I was surprised to hear the news. 

9、although(conj)：“尽管；虽然”，表示转折关系，同义词有 though, 不能与 but同时使用。

如： Although they're neighbors, they don't play together. 

= They're neighbors, but they don't play together. 尽管他们是邻居，但是他们不在一起玩。

10、 maybe(adv)：也许，大概，放于句首或句中 作状语

may + be：也许是，大概是，放于句中 作谓语

如：Maybe he is at home.= He maybe is at home.= He may be at home. 

11、percent 百分数， 基数词 + percent： percent 没有复数形式，作主语时，根据所修饰的名词来判断谓语的单复数。

Forty percent of the students in our class are girls.

五、习惯用法

1、want sb.to do sth. 想让某人做某事

2、It's + adj.+ for sb + to do sth 做某事是….的

3、 spend time with sb. 和某人一起度过时光

4、ask sb about sth 想某人询问某事

5、 by doing sth. 通过做某事

6、 What's your favorite…..? 你最喜欢的……是什么？

7、start doing sth. 开始做某事

8、be full of=be filled with 充满