1、八年级英语上册unit2预习指导一、知识点【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 times3.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
2、 a month.他一个月后能回来。2）how long “多久”How long did it take you to clean the house? 你打扫房子用了多久？It took me half an hour to clean the house.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
3、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 students15.shop=go shopping=do some shopping 购物
4、16.be good for 对.有益 17.be bad for 对.有害 e 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 bemaybe 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.T
5、he woman may be a teacher.2.a few / few / a little / littlePeople can live to 100, but few people can live to 150.There is little time left.I wont catch the first bus.Could you give me a little milk?3.hard / hardlyhard作形容词，意为“困难的，艰苦的，硬的”；作副词，意为“努力地，猛烈地”。hardly为副词，意为“几乎不”。The ground is too hard to di
6、g.I can hardly understand them.Its raining hard.The people can hardly go outside.4.As for homework , most students do homework every day .as for.意思是“至于；关于”，+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，youd better not believe it.关于那故事，你最好不要相信。5.Tha
7、t sounds interesting.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（尝起来），feel（觉得），seem（好象），grow（变得）,get（变得）等词在英语中可用作系动词，后跟形容词作表语。如：It tastes good.这味道好。The music sounds very sweet.这音乐听起来很入耳。The smoke grew heavier and heavier.烟雾变得越来越浓了。6.percent 名词，意为“百分之” 百分数的表示方法：基数+ percent (不用复数形式)，perc
8、ent做主语时，谓语动词的数要根据其后面的名词来确定。50：fifty percent百分之五十Fifty percent of the apples are bad.50%的苹果都坏了。Twenty percent of the meat is in the fridge.20%的肉都在冰箱7.not at all 意为“一点也不”，not应放在be动词、情态动词或助动词之后。The story isnt interesting at all.那个故事一点也没有趣。8.It is + adj.to do sth.做某事是的。It is interesting to play computer
9、 games.玩电脑很有趣。9.take, spend, payIt takes sb.some time to do sth.意为“花费某人时间来做某事”。人(sb.) spend 时间/钱 on sth.“买某物花了钱”。人(sb.) spend 时间/钱 (in) doing“花费多少时间来做某事”。pay 的主语必须是人，而“花钱买某物”为pay.for.10.however 副词，意为“然而，可是”，表示转折关系，可放在句首、句中、句末。二、练习题一、根据句意及提示写单词.1.Lucy is my best friend, we often go home t .2.I never
10、drink c before going to bed because its not good for sleep.3.Happy Camp is one of my favorite p .4.If you have a toothache, youd better go to the d .5.You can look for useful information on the I .6 My point is l (少)than 60, I have to take the exam again.7 Many students have to have after-school cla
11、sses (尽管) they really want to relax.8.Mo Yan is a famous Chinese (作家).9.Its good for students to help with (家务劳动).10. (或许) he cant finish the work by himself.11.Im learning (摇摆) dance，and its really fun.12.My dad reads his (杂志) in the evening every day.13.Id like to go to the concert with you, (然而)，
12、my hand are full.14. (几乎) no one took any rest, although they were very tired.15.How many (分数) do you get about the health quiz.二、用所给词的正确形式填空。1.Ninety percent of our students (be) from countryside.2.Now people have more money, but have (little)time to spend with their families.3.My grandpa (die) fiv
13、e years age.4.Bill goes swimming (one )a week.5.Eat (healthy )food, or youll get ill.6.My father is busy (work)on the computer.7.My mother wants me (clean) my own room.8.How many (hour) does the baby sleep every day?9.Some of my friends (exercise)every day and hardly ever eat junk food.10.How often
14、do you go (shop), Tina?三、单项选择。( )1.The man walked the forest and came to a big river at last.A.on B.over C.through D.across( )2.The doctor said I should eat junk food because its not good for my health.A.More B.less C.many D.a lot( )3.Enough sleep is for your health.A.bad B.well C.good D.right( )4.M
15、r Lee often to school early.A.came B.come C.comes D.coming( )5. do you have a music lesson?-Once a week.A.When B.How often C.Where D.What( )6.Look at the twins(双胞胎).One is singing, is dancing.A.another B.other C.the other D.others( )7.Next week is for me, I have no time to go to the park.A.free B.fu
16、ll C.fun D.far( )8.-What day is it today?- it is Friday.A.May B.May be C.Maybe D.About( )9.He went to the zoo five last year.And he had a good .A.time; time B.time; times C.times: times D.times; time( )10. of us enjoy getting up early.A.Nobody B.Nothing C.None D.Less than( )11.Kimi Lin is boy.A.a 5-
17、year-old B.a 5-years-oldC.a 5 years old D.a 5 year old( )12.-How often they stay up late?-Never.They always go to bed early.A.does B.do C.are D.is( )13.-How often does Kate go hiking? .A.I guess shes OK B.About an hourC.Once the week D.Twice a week( )14.Henry often helps his father in the garden.A.w
18、ork B.working C.worked D.works( )15.My parents me to get up at six in the morning.A.hope B.let C.want D.make四、根据对话内容及首字母提示补全对话。AA: Hello, Bill.Can I ask you some questions?B: Of 1.c .A: Do you have a lot of good 2.h ?B: Yes, I do.A: How 3.o do you exercise?B: Three or four 4.t a week.A: What sports
19、do you usually play?B:Soccer.A: Do you often stay 5.u late?B:Never.A: How often do you eat 6.j food?B: I hardly eat it 7.a I like it.A: How 8.m hours do you sleep every night?B: More 9.t 8 hours.A: I think your lifestyle(生活方式)is very 10.h .BA: Hi, Mary, You look so 1.h .B: Thank you.I often drink 2.
20、m .A: How often do you drink it?B: I drink it 3.a every day.A: Why do you like it so much?B: My mother says its 4.g for my health.And I also think so.A: Oh, I didnt drink milk at all in the 5.p Now, I will try to drink it.五、补全对话 AA: Thanks for coming for the interview, Bob.B: Thats OK.Im glad to be
21、here.A: 1 B: I play soccer.I like it.A:How often do you play it?B: 2 A: Do you watch TV?B: No, I dont.I dislike the programs.A: 3 B: Every day.I think theyre good for my health.A: Err .4 B: Nine.I need enough sleep.B: Youre welcome.1. 2. 3. 4. 5. BA: Good morning, Bill.B: Hi, Nick.A: 1 B: Yes, I lik
22、e playing basketball.How often do you exercise?A: 2 B: Do you get up early in the morning?A: Yes.I get up at 6: 30 every morning.And then I play basketball for half an hour.B: 3 A: I go to bed at 21: 00. 4 B: I see.You look strong.Let s play basketball together tomorrow morning,OK?A: All right. 5 Se
23、e you.B: See you tomorrow.1. 2. 3. 4. 5. CA: What do you do on weekends?B: 1 A: To the movies?B: Yes.What about you?A: 2 B: 3 A: Twice a week.Its very nice.B: What do you do on the Internet?A: I usually chat with my friends. 4 B:Yes.Its 43505891.A: 5 We can talk on the Internet.1. 2. 3. 4. 5. 【参考答案】
24、必会短语1.how often 2.at least 3.help with housework 4.hardly ever 5.healthy food 6.such as 7.less than 8.be good for 9.在某人的空闲时间 10.垃圾食品11.多于 12.在周末 13.一周两次 14.摇摆舞重点句式1.full, me 2.studying; free 3.stays up 4.never arrives 5.Although the most popular 6.best way, through exercise 7.However, bad habits 8.m
25、ore than 9.kind of; learning 10.never, junk food一.1.together 2.coffee 3.programs, dentist 5.Internet 6.less 7.although 8.writer 9, housework 10.Maybe 11.swing 12.magazines 13.however 14.Almost 15.points二.l.are 2.less 3.died 4.once 5.healthy 6.working 7.to clean 8.hours 9.exercise 10.shopping三.1.C 解析
26、 on在某物上;over指从某人或某物上方“越过”; through“穿过;通过”，多指从物体内部穿过; across“过，横过”，多指从物体表面经过，题意表达“穿过森林”故应用 through2.B解析句意:医生告诉我要少吃量圾食品，国为它不利于健康，less意为“较少的”3.C解析句意:足够的睡眠对你的健康有益， be good for“对有益”4.C 5B 6.C7.B解析由 have no time to go to the park可知，时同已排满，故用full8.C解析作状语，就于句前或句末。注意maybe是“情态动词十动词原形”，表示“可能是9.D解析第一空表示次数，所以用tim
27、es， have a good time“过得愉快”。10.C 11.A 12.B 13.D14.A解析help sb (to) do sh“帮助某人做某事”15.C解析 want sh.to do sth“想要某人做某事”四.A 1.course 2.habits 3.often 4.times 5 up 6.junk 7.although 8.many 9.than 10.healthyB 1.healthy 2.milk 3.almost 4.good 5.past%1.A 1.Well, what sports do you ply?%1.Twice a week.%1.How oft
28、en do you eat fruit and vegetables?%1.How many hours do you sleep every night?5.Thank you very much.B 1.Do you play basketball every morning?%1.I exercise every day.%1.What time do you go to bed at nigh?%1.I seldom stay up late.5.Lets meet at 7:00 a.m.C 1.I often go to the movies.%1.I often surf the Internet.%1.How often do you surf the Internet?%1.Do you have a QQ number?5.Thats great.8
