1.T summarize and cnslidate the rules f wrd knw hw t prtect the practice wrd-building: cmpunds, derivatives, cnversin
Language practice
Reuse means “use again”.Thugh pllutin is heavy nw, I dn’t think it’s hpeless.
Make new wrds. Jin the parts f wrds in Bx A with the wrds in Bx B. Yu need t use sme f the parts mre than nce.
-able -ful im- -less re- un-
careful　careless　cllectable　hpeful hpeless　impssible　reuse　unusual　unwanted　wasteful
Nw wrk in grups. Play the guessing game English fr Fun.
English fr Fun
1. full f care _________2. can be cllected __________3. full f hpe _________4. withut any hpe ________5. nt pssible _________
6. nt usual __________7. withut any use _____8. use again __________9. nt wanted _________10. making a lt f waste ___________
Learning t learn
Smetimes if yu knw the meaning f the parts f a wrd, yu can wrk ut the meaning f the whle wrd.
re + new + able renewable
can be new again
Cmplete the sentences with the wrds in the bx.
hpeful impssible reuse unhealthy wasteful
1. Plluted water is _________.2. It is _________ t thrw s much fd away.3. If yu lk after things well, yu may _______ sme f them later.4. It is _________ t clean up the whle river in such a shrt time.5. If we pay attentin t pllutin nw, the future will be _________.
Cmplete the table.
usefully/ uselessly
hpeful/ hpeless
plluted/ unplluted
wasteful/ wasted
wastefully
usual/ unusual
Cmplete the sentences with the crrect frm f the wrds in Activity 3.
She was hpeful that her new jb wuld make her mre successful. 1. The factry ________ the river, and the fish died.2．We ften walk in the cuntryside. It is a(n) ________ activity fr us.3．D nt use s much water. It is very________．4．T keep the flwers grwing, yu need t ________ them nce a day.
Cmplete the sentences.
A lunchbx is a bx that yu keep yur lunch in.1. A __________ is a card that yu write n ne side f and send t smene by pst.2. A __________ is a rm where yu have classes at schl.3. A __________ is a bk that has ne r mre stries fr children.4. A __________ is a black bard that is used at schl fr writing n with chalk.
Wrk in pairs. Lk at the pictures and answerthe questins.
What kinds f things can be recycled?
paper, plastic
2. Hw can these things be reused?
Many paper and plastic things can be used mre than ne time. Or we can change these things int decratins made by us.
3. Hw des this help the envirnment?We dn’t need t cut dwn mre trees t make paper if we reuse papers.
4. Have yu ever recycled r used things that can be recycled? Hw?I ever recycled t use paper cup, I just use them t make sme small decratins such as pen cntainer.
Cmplete the cnversatin with the crrect frm f the expressins in the bx.
be gd fr thrw away turn ff wrry abut
MIKE: I hear yu are ff t the Caribbean fr a hliday! Lucky yu! But aren’t yu (1) _______________the pllutin that such lng plane jurneys may cause fr the envirnment?KEN: I knw, but what can I d abut it? I’ve already tried my best t prtect the envirnment. I recycle. I dn’t (2) __________ things if I dn’t want them any mre. I (3)_________the lights when I leave a rm. Dn’t tell me I shuldn’t travel by plane any mre!
wrried abut
Mike:N, f curse nt. But we can d mre t prtect the envirnment. Fr example, we can help keep the air clean by planting trees. Trees (4)____________the envirnment. In this way, we can reduce the harm f pllutin.Ken:Gd! S I can enjy my hliday, and when I cme back, I’ll plant sme trees!Mike:That’s the idea! Maybe we can all jin in and start a small frest!
Listen and check (√) the true sentences.
1. It is OK t thrw used things away. Lking after them takes a lt f time.2. D nt thrw away things made f glass, plastic and paper, but recycle them when pssible.3. Take a bag when yu g shpping.4. Prducing electricity and using il will nt cause pllutin.5. Turn ff lights when yu d nt need them.6. Ride a bike r walk, and d nt ften drive yur car.
Listen again and cmplete the table.
glass , plastic and paper 　
take a bag　
reduce pllutin　
waste electricity 　
Walk r cycle　
Arund the wrld
Earth Hur Earth Hur is held tward the end f March each year. During Earth Hur, peple all acrss the wrld switch ff the lights they d nt need. They d this t shw their awareness f climate change. The first Earth Hur was held in 2007 in Sydney, where mre than 2.2 millin peple switched ff their lights. Tday, mre and mre cities are ta-king part in the event, such as Beijing, Lndn, Rme and New Yrk, and landmarks like the Empire State Building and the Glden Gate Bridge will g dark.
Wrk in grups. Decide what kind f pllutin yu want t talk abut.
Chse a subject that yu care abut the mst. It culd be water pllutin, air pllutin, etc. Find ut mre infrmatin abut yur subject. Lk it up n a website r in a bks.
Discuss yur subject.
Take turns t say what yu think abut the prblem and what can be dne. Listen t what thers say. If yu agree with what they have said, say “I agree”, “That’s true” r “That’s a gd pint”; if yu d nt agree with what smene says , say “I’m srry, but I dn’t agree. I think that ...”
Present yur grup’s ideas t the whle class.
wrk ut解決；計(jì)算；產(chǎn)生結(jié)果；設(shè)計(jì)出
Language pints 1
eg：The plan wrked ut badly. 計(jì)劃實(shí)施得很不成功。 See if yu can wrk ut this prblem. 看你能不能解出這道難題。
g dark 變暗
Language pints 2
這里的g為系動(dòng)詞。英語系動(dòng)詞的功能主要是把表語和主語聯(lián)系在一起，說明主語的屬性、特征或狀態(tài)。系動(dòng)詞不能在句中獨(dú)立作謂語，必須和后面的表語一起構(gòu)成句子的謂語。
考點(diǎn)1 :某些含有變化意義的動(dòng)態(tài)系動(dòng)詞如get, becme, grw, turn等的進(jìn)行時(shí)態(tài)可與形容詞的比較級(jí)連用，表示漸進(jìn)過程，其意思是“越來越……”。eg：He is grwing taller and taller. 他長得越來越高了。 Our life is getting better and better. 我們的生活越來越好了。
考點(diǎn)2 :后接過去分詞可構(gòu)成系表結(jié)構(gòu)。eg：Jhn gt wunded while playing ftball last Saturday. 約翰上周六踢足球時(shí)受了傷?？键c(diǎn)3 :易混系動(dòng)詞的區(qū)別get, becme, g, turn, grw“變得”
考點(diǎn)3 :get :“變得”，在口語中用得很多。becme :“變成，成為(好壞情況均可)”。后接形容詞、名詞、過去分詞作表語。g :“變得(某種由好到壞的情況)”，可表示顏色的變化或語態(tài)的變化。turn :“變成”，強(qiáng)調(diào)與原來不同的、新的變化，如變質(zhì)、變色等。grw :“逐漸變得……”，強(qiáng)調(diào)其變化過程.
care fr與care abut的意義、用法區(qū)別
Language pints 3
英語中常見的構(gòu)詞法：1.合成法2. 派生法 （加前綴、后綴）3. 轉(zhuǎn)化法（詞性變?cè)~形不變）
將兩個(gè)或兩個(gè)以上獨(dú)立且語義不同的單詞合在一起構(gòu)成新詞的方法稱作合成法。
在一個(gè)單詞前或后加上一個(gè)詞綴，就可以構(gòu)成一個(gè)新詞。 根據(jù)詞綴的位置，分為前綴和后綴兩種。掌握一些常見的詞綴，對(duì)單詞的記憶和理解有很大的幫助。比如：我們學(xué)會(huì)care, 就能掌握careful, careless, carefully, carelessly。下面我們來學(xué)習(xí)幾個(gè)常見的前、后綴：
常見名詞后綴:(1). –an: American (美國人), Indian(印度人)，Canadian(加拿大)，Italian(意大利人)(2). –er: wrker (工人), driver(司機(jī))， teacher(教師)，player(選手)(3). –ess: actress (女演員), waitress(女服務(wù)員)
(4). –ness: illness (疾病), hmelessness(無家可歸)，kindness (慈祥), happiness(幸福)(5). –r: actr (男演員), visitr(參觀者)，(6). –ance: appearance (出現(xiàn)), perfrmance(表演)(7). –ment: agreement (同意),
常見形容詞后綴:(1). –ful：helpful(有幫助的), hpeful(有希望的), pwerful(有力量的) ,useful(有用的), (2). –less：helpless(無幫助的), hpeless (無希望的), pwerless(無力量的),useless(無用的), (3). –ly: friendly(有好的), lvely(可愛的)
(4). –ing:interesting(有趣的), exciting(激動(dòng)人心的), bring(無聊的)(5). –ed: interested(感興趣的)， surprised(吃驚的)
英語構(gòu)詞法中把一種詞性用作另一種詞性而詞形不變的方法叫做轉(zhuǎn)換法。
1. 名詞轉(zhuǎn)化為動(dòng)詞。
Yur hand lks badly burnt. 你的手似乎燒傷很重。He handed me a little rectangle f white paper.他遞給我一張小小的長方形白紙片。
2. 形容詞轉(zhuǎn)化為動(dòng)詞。
The stadium emptied at the end f the first day f athletics.首日體育比賽結(jié)束后， 體育場(chǎng)空無一人。
一、用所給詞的適當(dāng)形式填空
1． The farmers ften water crps t keep them （grw）.2． We shuld try ur best （prtect）ur envirnment.3.（廣東）It is （usual）fr a fur-year-ld by t write pems s well. 4． （南通）T make a green wrld，we shuld try t reduce air ________（pllute）by walking mreand driving less.5． （蘭州）This （wd）bridge was built mre than 20 years ag.
二、根據(jù)漢語提示完成句子
6． He can’t finish the wrk __________________ （在如此短的時(shí)間里）.7.（改編·廣州）Yu've （算出）the maths prblem yurselves. What clever children yu are！8．Will yu （參加）the schl sprts meeting next Friday？ 9． Eating mre vegetables （對(duì)……有好處）ur bdies. 10． We shuld （注意聽）t the teacher in class.
in such a shrt time
take part in
pay attentin t listening

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