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1、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. healthy lifestyle健康的生活方式5.go skateboarding去滑滑板 go shopping 去购物 go swimming 去游泳 go boating 去划船 go fishing 去钓鱼6.keep healthy=stay healthy= keep in good health保持健康keep +形容词，“表保持某种状
2、态”7.exercise= take/do exercise=do /play sports锻炼take more exercise多做运动10.be the same as与-相同 be different from 与-不同11. once a month一月一次twice a week一周两次. once or twice a week 一周一两次three times a week一周三次four times a week 一周四次three or four times a week 一周三四次12 make a difference to对什么有影响如：As teachers, yo
3、u 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。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 and more vegetables 少吃肉多吃蔬菜24.junk food垃圾食物25.
4、be good for对什么有益 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e home from school/ work 放学/下班回家31.of course=certainly=sure当然,当然可以32.get good grades取得好成绩33.some advice 一些建议 advice 是不可数名词 a piece of advice 一则建议 give advice 提出建议 take ones advice 采纳或听从某人的建议34.help sb （to） do sth帮助某人做某事=h
5、elp sb with sth38.your favorite program你最喜欢的节目39.Animal World动物世界41.every day每天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=rather=very=quite 非常，相当My eat
6、ing habits are pretty good.我的饮食习惯相当好。54. kind of= a little有点I think Im kind of unhealthy.我想我有点不健康。55. on weekends在周末 on weekdays 在平日，在工作日，在学习日56. ask sb. about sth.就某事询问某人57. go online去上网 surf/use the Internet上网58. the answer to the question问题的答案59. the best way to do sth.做某事的最好方式60. at least / at m
7、ost twice a week一周至少/最多2次61. such as 例如62. less than少于 more than多于 The old man is more than eighty years old.这位老人八十多岁了。63. swing dance摇摆舞64. go to bed early早点睡觉 stay up (late) 熬夜65. in ones free time在某人的业余时间66. help with housework帮忙做家务67. old habits die hard 旧习难改68. play tennis/ basketball/ volleyba
8、ll打网球/篮球/排球 play soccer/ football 踢足球69. have dance and piano lessons上舞蹈课和钢琴课70. go shopping=do some shopping购物71. spend time with sb.和某人一起度过时光72. sometimes=at times有时二、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) +主语+ do sth.?疑问词how often是问频率(多久一次),一般与一般现在时连用，回答一般是用表示频率的
9、副词，如：always,usually,often, sometimes, hardly ever, , 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.（每月一次） 2.“Wh
10、at do you usually doonweekends?” “ 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,而第二个do则是实义动词。Eg1) I often go to the movies.（对划线部分提问） ？3. Whats your favorite program?=What program do you like best?“Its Animal World.”“你最喜欢什么节目？”“动物世界。”4.As forhomework , most students do homework every day .
11、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）。As for the story，youd better not believe it.关于那故事，你最好不要相信。 had better (not) do sth最好（不）干某事 youd =you had 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
12、“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)He wants me to help him with his English.他想让我帮助他学习英语。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 its good for my health.解析：be
13、 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)Its 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。10.I try to eata lot ofvegetables , usuallyten to eleven times a week.解析：try to do sth.表示“尽力/努力做某事”try doing sth.表示“（用某一办法）试着去做某事”。 tr
14、y ones best to do sth 尽某人最大力量做某事如: Youd better try doing the experiment in another way.你最好试试用另一种方法做这个试验。 We should try our best to learn English well. 我们应该尽最大力量学好英语。11. My healthy lifestyle helps meget good grades.解析：help sb.(to) do sth.帮助某人做某事12. Good food and exercise help me to study better.解析：这里
15、better是well的比较级13.Is her lifestyle the same as yours or different?解析：be the same as / be different from 14. What sports do you play ?你做什么运动？15. A lot of vegetables help you tokeep in good health.解析：keep in good health = keep healthy = stay healthy 保持健康17. That sounds interesting.解析：这是“主语+系动词+表语”结构的简单句。sound（听起来），look（看起来），smell（闻起来），taste
