初中英语总复习:初三上册英语知识点
武汉状元教育2019-03-11 10:52
Unit2 How often do you exercise?
【重点语法】
1. 频率副词: always, usually, often, sometimes, never
频率副词在句中通常放在实义动词之前, be动词或助动词之后。常用于一般现在时态中。
2.“次数”的表达方法
一次 once,两次twice,三次或三次以上:基数词+ times, 如:three times,five times,
3. how often“多久一次”问频率,回答常含有频率词组或短语。
常见的how疑问词:
1)How soon 多久(以后)
—How soon will he be back?他多久能回来?
—He will be back in a month. 他一个月后能回来。
2)how long “多久”
—How long did it take you to clean thehouse? 你打扫房子用了多久?
—It took me half an hour to clean thehouse. 我打扫这房子用了半小时。
3)How many+名复
How much+不可名
“多少” 问数量(how much 还可问价格)
【重点短语】
1. go to the movies 去看电影
2. look after = take care of 照顾
3. surf the internet 上网
4. healthy lifestyle 健康的生活方式
5. go skate boarding 去划板
6. keep healthy=stay healthy 保持健康
7. eating habits 饮食习惯
8. take more exercise 做更多的运动
9. the same as 与什么相同
10. be different from 不同
11. once a month一月一次
12. twice a week一周两次
13.make a difference to 对......有影响/作用
14. most of the students=most students
15. shop=go shopping=do some shopping 购物
16. be good for 对......有益
17. be bad for 对......有害
18. come home from school放学回家
19. of course = certainly = sure 当然
20. get good grades 取得好成绩
21. keep/be in good health 保持健康
22. take a vacation 去度假
【词语辨析】
1. maybe / may be
maybe 是副词,意为“大概, 可能,或许”,一般用于句首。May be是情态动词,意为“可能是...,也许是...,大概是...”.
The baby is crying. Maybe she is hungry.
The woman may be a teacher.
2. a few / few / a little / little
a few (少数的,几个,一些)
a little (一点儿,少量)
表示肯定
few (很少的,几乎没有的)
little (很少的,几乎没有的)
表示否定
修饰可数名词
修饰不可数名词
People can live to 100, but few people canlive to 150.
There is little time left. I won’t catchthe first bus.
Could you give me a little milk?
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