八年级上册知识点学习与巩固
Unit 1 How often do you exercise?
词组
1. go to the movies 去看电影 
2. look after = take care of 照顾
3. surf the internet 一年级的小蜜瓜上网   
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. exercise=take(much)exercise=do sports锻炼 
8. eating habits 饮食习惯
9. take more exercise 做更多的运动 
10. the same as 与什么相同
11. be different from 不同     
12. once a month一月一次
13. twice a week一周两次 
14. make a difference to 对什么有影响
15. how often 多久一次   
16. although = though虽然 
17. most of the students=most students
18. shop=go shopping=do some shopping 购物
19. as for至于   
20. activity survey活动调查
21. do homework做家庭作业
22. do house work做家务事
23. eat less meat吃更少的肉
24. junk food垃圾食物
25. be good for 对什么有益 
26. be bad for对什么有害
27. want to do sth 想做某事 
28. want sb to do sth想某人做某事
29. try to do sth 尽量做某事
30. come home from school放学回家
31. of course = certainly = sure当然
32. get good grades取得好成绩   
33. some advice 
34. hardly=not nearly / almost not几乎不
35. keep/be in good health保持健康
36.be stressed紧张的，有压力的
37. take a vacation 去度假
48.get back 回来
Section A
1. How often多久(一次)
How often do you exercise? 你多久锻炼一次身体？
How often does your mother go shopping? 你妈妈多久购一次物？
【区别】How often和How many times
① How often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。
② How many times意思是“多少次”，是用来提问做某事的次数的，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 times this year.（就划线部分提问）→
哑舍结局
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.
2. hardly几乎不，简直不
There are hardly any students in the classroom.几乎没有学生在教室里。
  There is hardly a cloud in the sky. 天空中几乎没有云。
【区别】hardly与hard
① hardly不是hard加后辍所构成的，它是副词，常与can或any连用。
② hard可用作形容词，意思为“艰难的，困难的，勤奋的”可等同于“difficult”。它也可用作副词，意思是“努力地，刻苦地，猛烈地”。
典型例题：
1) 学好英语不难。（翻译成英语）→                       
解析: 答案是It’s not hard to learn English. 这里hard为形容词，艰难的，困难的。
2) We must         (努力学习).
解析：不识时务在英语中努力学习或努力工作，我们常用work hard来表示，这里hard是副词，修饰前面的动词work.故答案为：work hard
Section B
知识要点
1. 【区别】maybe, may be
maybe是副词，意思是“也许，可能”，相当于perhaps, 常用于句首。如：
how to keep healthyMaybe he will call you tomorrow. 或许他明天给你打电话。
may be是由情态动词may和系动词be构成，译成汉语为“可能是”，在句中作谓语。如：Tom may be at home. 汤姆可能在家。
Maybe和may be有时可以互相转换。如：Maybe he is right.可等同于：He may be right.
2. although的用法
although表示“虽然”，是从属连词，引导让步状语从句，语气较重，且比较正式，所引导的从句放在主句前后均可，可用though替换。注意：though/ although不能和but同时出现在一个句子中，但可以和yet连用。如：
Although/Though it is snowing, it is not very cold.=It is snowing, but it is not very cold.= Although/ Though it is snowing, yet it is not very cold. 虽然下着雪，但并不是很冷。
随堂达标
一、单项选择
1. My mother told me ________ you anything.
A. tell not            B. not tell        C. to not tell        D. not to tell
2. “I’ll try         mistakes again. ”She said.
A. don’t make        B. not to make        C. not make        D. to not make
3. Would you like         to eat?
贺卡祝老师
A. something healthy                B. anything healthy
C. something health                D. healthy something
4. Doing morning exercises         your health.
A. is bad to          B. is good for      C. is bad for        D. is good to
5.         he works very hard, he fails.
A. Because          B. Since          C. if                D. Although
二、用单词的适当形式填空。
1. A lot of vegetables help you ____________ (keep) in good health.
2. My mother wants me ____________ (drink) some milk every day.
3. His ____________ (eat) habits are pretty good, so he’s very healthy.
4. You must try ____________ (eat) less meat.
5. Good sleep can help you to study ____________ (well).
三、完成句子。
1. 妈妈想让我天天喝牛奶。
My mother wants me ____________ ____________ ____________ every day.
2. 天天跑步对我们的健康有好处。
Running every day is ____________ ____________ our health.
3. 我努力吃大量的蔬菜。
I ____________ ____________ ____________ a lot of vegetables.
4. 我健康的生活方式帮着我取得好成绩。
My healthy lifestyle helps me ____________ ____________ ____________.
5. 我相当健康。
I’m ____________ ____________.
6. 你多久吃一次垃圾食品？
____________ ____________ do you eat ____________ food?
四、短文填空。
A: Hello, Sally. Welcome to my house.
远中天
B: Thank you.
A: (1)____________ you like a cup of tea?
B: Yes, please.
A: Would you like some fruit?
B: Some bananas , please . It’s my (2)____________.
A: Eating fruit is good (3)____________ your health . (4)____________ (5)____________ do you eat fruit?
B: Every day.
A: It’s a good eating (6)____________. Eating a lot of vegetables and fruit can help you (7)____________ good grades. They can help you to study better.