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最新（2013秋）人教版八年级上册英语知识点

Unit 2.How often do you exercise?

一.、重点短语归纳：

1.go to the movies =go to the cinema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 skateboarding 去滑滑板 watch TV看电视

6.keep healthy=stay healthy= keep in good health保持健康 keep +形容词，“表保持某种状态” do some reading 阅读

7.exercise= take/do (much) exercise=do sports锻炼 8.eating habit 饮食习惯

9.take more exercise 做更多的运动 10.be the same as 与什么相同 11.once a month一月一次 12.be different from 不同 13.twice a week一周两次.

three times a week一周三次 14.make a difference to 对什么有影响

如：As teachers, you must believe that you can make a difference to the lives of your students. 身为教师，你们必须坚信你们能够影响学生的一生。

如：A false step will make a great difference to my future. 错走一步对我的前程来说会产生很大影响。 15.how often 多久一次，询问动作发生的频率 how many times 多少次 ，用来提问做某事的次数 16.although=though虽然 <不能与but连用> 17.most of the students=most students大多数学生 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 一些建议

some advice 中的 advice 是不可数名词

a piece of advice 一则建议 give advice 提出建议

take one’s advice 采纳或听从某人的建议

34.help sb to do sth帮助某人做某事=help sb with sth 35.a lot of vegetables=many vegetables许多蔬菜 36.hardly= almost not几乎不 hardly ever很少，几乎不，从不 37.keep/be in good health保持健康 38.your favorite program你最喜欢的节目 39.Animal World 动物世界 40.play soccer踢足球 41.every day每天

42.once or twice a week 每周一两次 43.three or four times a week 每周三四次 44.at Green High School 在格林高中 45.all students 所有的学生 46.most students 大多数学生 47.some students 一些学生 48.no students 没有学生

49.the result of a survey 调查结果

50.the result for “watch TV”“看电视”的调查结果 51.improve your English 提高你的英语 52.drink milk 喝牛奶

53.pretty healthy 相当健康 pretty，adv. 相当，非常 Pretty（用作副词时） =rather=very=quite 非常，相当 54. kind of = a little有点

I think I’m kind of unhealthy.我想我有点不健康。 55.on weekends在周末

56.ask sb. about sth.就某事询问某人 57.by doing sth.通过做某事 58.go online去上网

59.the answer to the question问题的答案 60.stay up late熬夜

61.the best way to do sth.做某事的最好方式 62.at least twice a week一周至少2次 63.such as 比如；诸如

64.less than少于《----》more than多于 65.hardly ever几乎从不 66.swing dance摇摆舞 67.go to bed early早点睡觉

68.in one’s free time在某人的业余时间 69.help with housework帮忙做家务 70.old habits die hard积习难改 71.play tennis打网球

72.have dance and piano lessons上舞蹈课和钢琴课 73.go shopping=do some shopping购物

74.spend time with sb.和某人一起度过时光

75.spend time/money on sth.在某方面花费时间或金钱 76.spend time/money (in) doing sth.花费时间或金钱做某事 77.sometimes=at times有时 78.help with housework帮助做家务 二、重点句子：

1.How often do you exercise? 你（你们）多久锻炼一次身体？ 解析：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。

Eg1)——How often do you go to the factory?

——Twice a week.你们多久到工厂去一次？每星期两次。 Eg2)——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。” 解析：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。 Eg1)What do you usually do on weekends? I often go to the movies. Eg2)What does she usually do on weekends? She sometimes go hiking. 3.——“What’s your favorite program?”

——“It’s Animal World.”“你最喜欢什么节目？”“动物世界。” 4.As for homework , most students do homework every day .

解析：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。 As for myself, I don’t want to go now. 至于我自己，我现在不想去。 As for the man, I know nothing about him. 至于那个人，我什么都不知道。 5. Mom wants me to get up at 6:00 and play ping-pong with her . 解析：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：

Eg1)Do you want to go to the movies with me？你想和我一起去看电影吗？ Eg2)The teacher doesn't want us to eat hamburgers.老师不想让我们吃汉堡包。 注意：有很多动词后面用这种结构做动词的复合宾语，如： ask sb. to do sth. 叫某人做某事 tell sb. to do sth. 告诉某人去做某事 help sb. (to) do sth. 帮助某人做某事 6. She says it’s good for my health.

解析：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： Eg1)It's good for us to do more reading. 多读书对我们有好处。 Eg2)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 .