人教版八年级上册英语第二单元知识点

Unit2 How often do you exercise?

一、重点短语

1.look after = take care of 照顾

2. surf the internet 上网

3.healthy lifestyle 健康的生活方式keep healthy=stay healthy 保持健康 5.eating habits 饮食习惯 6.take more exercise 做更多的运动

7.the same as 与什么相同8.be different from 不同9.once a month 一月一次10.twice a week 一周两次11.make a difference to 对什么有影响

12.most of the students=most students 大部分学生

13.shop=go shopping=do some shopping 购物14.be good for 对什么有益15.be bad for 对什么有害e home from school 放学回家17.of course = certainly = sure 当然18.get good grades 取得好成绩19.keep/be in good health 保持健康20.take a vacation 去度假21.help with housework 帮助做家务22.on weekends 在周末23.how often 多久一次24.hardly ever 几乎从不25.every day 每天26.be free 有空27.go to the movies 去看电影e the Internet 用互联网29.swing dance 摇摆舞30.play tennis 打网球31.stay up late 熬夜；睡得很晚32.at least 至少33. go to bed early 早点睡觉34.such as 比如；诸如35. have dance and piano lessons 上舞蹈课和钢琴课36.play sports 进行体育活动37. go camping 去野营38.not…at all 一点儿也不…… 39.i n one’s free time 在某人的业余时间40.the most popular 最受欢

迎的41.old habits die hard 积习难改42.go to the dentist 去看牙医43.morn than 多于；超过44.less than 少于

二、习惯用法

1. What’s your favorite……? 你最喜爱的…… 是什么？

2. How about…? ...... 怎么样？/ …… 好不好？

3.How many+ 可数名词复数+ 一般疑问句？…… 有多少……?

4. 主语+find+that 从句. …… 发现……

5.. by doing sth. = through + 名词通过做某事

6. help sb. with sth. 帮助某人做某事

7. spend time with sb. 和某人一起度过时光

8. want sb. to do sth. 想让某人做某事

9. It’s+ adj.+ to do sth. 做某事的…… 的。

10. ask sb. about sth. 向某人询问某事

11. the best way to do sth. 做某事的最好方式

三、词语辨析：

1. how often 多久一次，用来提问动作发生的频率。

回答用：once ，twice, three times 等词语。

How often do you play sports? Three times a week.

how long 多长，用来询问多长时间，也可询问某物有多长。

How long does it take to get to Shanghai from here? How long is the ruler?

how far 多远，用来询问距离，指路程的远近。回答或具体公里数，或30 minutes’ walk / drive…

How far is it from here to the park? It’s about 2 kilometers.

2. free 空闲的，有空的，反义词为busy. be free 有空，闲着，相当于have time.

I’ll be free next week. = I’ll have time next week.

还可作“ 免费的、自由的” 解。be free to do sth. 自由地做某事。

The tickets are free. You’re free to go or to stay.

3. How come ？怎么会？怎么回事？表示某件事情很奇怪，有点想不通；

可单独使用，也可引导一个问句，相当于疑问句why, 但how come 开头的特殊疑问句

使用的仍然是陈述语序。

How come Tom didn’t come to the party? = Why didn’t Tom come to the party?

4. stay up late 指“ 熬夜到很晚，迟睡” 。Don’t stay up late next time.

stay up 指“ 熬夜，不睡觉” 。He stayed up all night to write his story.

5. go to bed 强调“ 上床睡觉” 的动作及过程，但人不一定睡着。

I went to bed at eleven last night.

go to sleep 强调“ 入睡，睡着，进入梦乡” 。

She was so tired that she went to sleep soon.

6. find + 宾语+ 名词, 发现：We have found him (to be) a good boy.

find + 宾语+ 形容词，发现：He found the room dirty.

7. 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.

Thirty percent of time passed.

8. more than 超过，多于，不仅仅，相当于over. 在句型转换中考

查两者的同义替换。

反义词组为：less than.

I lived in Shanghai for more than / over ten years.

9. afraid 形容词，担心的，害怕的，在句中作表语，不用在名词前作定语。