八年级上知识点总结。
复习专用。第一课时。
unit 1: how often do you exercise?
应掌握的词组】
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. 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 housework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
stressed out紧张的，有压力的。
37. take a vacation 去度假
back 回来。
应掌握的句子】
1. how often do you exercise? 你（你们）多久锻炼一次身体？
how often + 助动词do(does或did) +主语 + do sth.? 疑问词how often是问频率(多久一次),（在这里助动词do(does或did) 是起帮助构成疑问的作用）与一般现在时或一般过去时连用，回答一般是用表示频率的副词，如：once, twice, three times…, sometimes, often, quite, often, never, every day, once a week , twice a month , three times a month , three or four times a month 等。
翻译：“你们多久到工厂去一次？”“每星期两次。”
how often do you go to the factory?” twice a week. ”
他们多长时间举办一次舞会？”“通常每两周举办一次。”
how often do they h**e a dancing party?” usually, once every other week.”
他多久去购一次物？”“一个月一次。”
how often does he go shopping?” he goes shopping once a month.”
2. “what do you usually do on weekends?” i usually play soccer.”
周末你通常做什么？”“我通常踢足球。”
第一个do为助动词， 在这起帮助构成疑问的作用；而第二个do则是实义动词。
翻译： what do you usually do on weekends? i often go to the movies.
what does she usually do on weekends? she sometimes go hiking.
3. “what’s your f**orite program?” it’s animal world.”
what program do you like best?
“你最喜欢什么节目？”“动物世界。”
4. as for homework , most students do homework every day .
as for...意思是“至于；关于”，常用于句首作状语，其后跟名词、代词或动词的-ing形式（即动名词）。如：
as for him，i never want to see him here. 至于他，我永远不希望在这里见到。
as for the story，you'd better not believe it. 关于那故事，你最好不要相信。
翻译：至于我自己，我现在不想去。 (as for myself, i don’t want to go now. )
至于那个人，我什么都不知道。(as for the man, i know nothing about him.)
5. mom wants me to get up at 6:00 and play ping-pong with her .
want to do sth. 意思是“想要做某事”；
want sb. to do sth.意思是“想要某人做某事”。如：
do you want to go to the movies with me？你想和我一起去看电影吗？
the teacher doesn't want us to eat hamburgers.老师不想让我们吃汉堡包。
6. she says it’s good for my health.
be good for...表示“对……有益（有好处）”;其反义为：be bad for...这里for 是介词，后跟名词、代词或动名词）
如：it's good for us to do more reading. 多读书对我们有好处。
reading in bed is bad for your eyes.在床上读书对你的眼睛有害。
7. how many hours do you sleep every night?
8. i exercise every day , usually when i come home from school .
9. my eating habits are pretty good . 这里pretty相当于very 。
10. i try to eat a lot of vegetables , usually ten to eleven times a week .
try to do sth.表示“ 尽力做某事 ” 不包含是否成功的意思而try doing sth.表示“（用某一办法）试着去做某事”。
如： you’d better try doing the experiment in another way.
你最好试试用另一种方法做这个试验。
11. my healthy lifestyle helps me get good grades.
help sb.(to) do sth.帮助某人做某事。
12. good food and exercise help me to study better.
这里better是well的比较级，而不是good的比较级。
13. is her lifestyle the same as yours or different?
is her lifestyle the same as your lifestyle or is her lifestyle different from yours? be the same as … be different from …
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