Unit2 Section B知識總結(jié)- 人教版八年級上冊英語

1、Unit2 How often do you exercise?Section B junk food 垃圾食品 green food 綠色食品 natural food 天然食品health n 健康healthy adj 健康的(反)unhealthy healthily adv 健康地keep healthy = keep fit = stay healthy=keep in good health 保持健康Doing sports can help us keep _(health)They eat very _(health). Mike is good for our _(heal

2、th).how many 多少，后跟名詞復(fù)數(shù)，用于對可數(shù)名詞的數(shù)量提問。( )-How many _ are there in your basket,Jeff? -Only three.A.rice B.orange C.eggs D.fruit how much 多少，后接不可數(shù)名詞，可對不可數(shù)名詞的數(shù)量或價格提問。 How much meat do you want? How much is the bike?try v 試圖，設(shè)法，努力 【拓展】 try on 試穿 try to do sth 努力做某事 try doing sth 試圖做某事 try ones best to do

3、sth= do ones best to do sth 盡某人最大努力做某事We should _(盡最大努力)to be happy in the future.5.although=though conj 雖然，即使;不能與but 連用，引導(dǎo)讓步狀語從句( ) _ he isnt rich enough,he often gives away money to some poor children.A.Though B.When C.Because D.If( ) _ he is very tried,he still tries _. A.Because ;work B.Because;

4、to work C.Although;working D.Although;to work6.want sb to do sth= would like to do sth 想要某人做某事ask sb to do sth 請求某人做某事 tell sb to do sth 告訴某人做某事（ ）My parents want _ a doctor. A.me to be B.me be C.to me be D.be7.(1)be good for 對有好處，對.有益（反）be bad for 對有害( ) She says milk is _her health and she drinks

5、it every day. A.good to B.good for C.well for D.good at (2)be good at = do well in +n/doing 擅長于做某事 My brother is really good at baseball.(3)be good to =be friendly to=be kind to 對. 友好( ) Its not good _ your health to play computer games so much.A. with B.in C.for D.on( ) Running is good _ your healt

6、h. A.at B.to C.for D.with8.look after=take care of 照顧短語:look for 尋找 look like 看起來像 look out 小心 look around 環(huán)顧look up 向上，查字典 look over 檢查 look at 看( ) -Can you _ my dog when I go out?- Sure. A.look like B.look after C.look for D.look at( ) We must _ our eyes.A.look up B.look at C.look after D.look fo

7、r( )My mother is ill,so I have to _her at home. A.look at B.look after C.look for D.look around9.help v 幫助helpful adj 有幫助的help sb(to) do sth=help sb with sth 幫助某人做某事 My mom helps me_(do) my homework.=My mom helps me with my homework.My teachers words are _(help) to me.( )A lot of vegetables can help

8、 us _ in good _. A.keep;health B.to keep; healthy C.keeping ;health D.keeps;health10.different adj 不同的differently adv 不同地difference n 不同點be different from= be not the same as 與.不同 (反) the same as -Whats the _ between the two computers?- There are some _in price and quality.(different)( ) Are his eat

9、ing habits the same as _? A.you B.your C.yours D.yourself( ) My lifestyles is _ from your brothers . - Yes.There are some _. A.different;different B.difference;different C. different;differences 11.maybe =perhaps adv 也許，可能，通常用于句首，在句中作狀語。Maybe you left your book at home.may be 是“情態(tài)動詞+be動詞原形”構(gòu)成的謂語形式，“

10、可能，也許”，可以和maybe 互換。Toms pen may be in his backpack.=Maybe Toms pen is in his backpack. 12.（1）keep 連系動詞 ，后接形容詞“保持，使保持某種狀態(tài)”keep healthy 保持健康（2）keep +名詞/代詞+形容詞” 保持狀態(tài)”Keep your eyes closed (3) keep sb doing sth 使某人不停地做某事Dont keep me waiting for long.(4) keep v “保管某物How long can I keep the dictionary.13.

11、less adj 更少的 (修飾不可數(shù)名詞) little less least You should eat less meat.( ) Were try our best to do the work with _ money and _ people.A.few,little B.a few ,a little C.less,fewer D.fewer,less14.a lot of =lots of 許多，大量 a lot of +可數(shù)名詞復(fù)數(shù)=many a lot of +不可數(shù)名詞= much（ ） There is a lot of snow in the north of Ch

12、ina in winter.（ ）The students have lots of homework to do every day.A.many B.much C.a lot D.lot of 15.must/have to 必須(1)must 強調(diào)主觀看法，無時態(tài)變化 I must do my homework before I go out.(2) have to 強調(diào)客觀需要，有時態(tài)和人稱的變化，第三人稱單數(shù)形式為has to ,過去式為had toI have to go to a meeting.單元短語集錦：how often 多久一次 2.how soon 多久以后3.how

13、 many times 多少次 4.hardly ever 很少5.once or twice 一兩次 6.as for 至于7.junk food 垃圾食品 8.keep healthy/stay healthy 保持健康9.eating habits 飲食習(xí)慣 10.try to do sth 盡力做 11.try doing sth 嘗試做 12.two or three times 兩三次 13.surf the Internet 上網(wǎng) 14.the result of 的結(jié)果 15.be different from 與不同 16.keep something +adj 保持某物.1

14、7. be good to 對.好 18.a healthy lifestyle 一個健康的生活方式19.on weekends 在周末 20.of course 當(dāng)然21.look after/take care of 照顧 22.get good grades 取得好成績23.be good for 對.有好處 24.help sb to do sth 幫助某人做某事小作文：How do I keep healthy?I am a middle school student. Im very healthy.I get up early every morning and do some exercise.My eating habits is very good.I often e