初中外研版 (新標準)Unit 3 Language in use教案配套課件ppt-課件下載-教習網

Mdule task discuss what yu can d abut the pllutin
Mdule task: discuss what yu can d abut the pllutin
Assessment:Discuss yur subject in grups f fur and present yur ideas t the whle class
1扔掉 2為……而擔心3.遍及 4.使人們生病5.對健康構成威脅 6.也 7.大量的 8.寄希望于…9.把…分成… 10.對…有害11.做出改變 12.節(jié)約能源
review fr units 1&2
be wrried abut
be a danger t health
be harmful t
make a change
save energy
make peple ill
Let’s take these simple steps tday ,s that we will save the wrld
Use these things fr as lng as pssible ,repair them if pssible
Befre yu buy sth new ,think whether it is necessary because maybe the ld ne is just as gd
1.Pllutin is a danger t ur health
=Pllutin is dangerus t ur health
2.Thugh pllutin is heavy nw, I dn’t think it’s hpeless
=Withut any hpe
3.We prduce waste every day ,and it’s harmful t ur envirnment
be harmful t = d harm t
5.Reuse means “use again”
reuse repair recycle retell rewrite repeat
4.Every class cllects reusable waste.
re +use +able
1. Make new wrds. Jin the wrds in Bx A with the parts f wrds in Bx B.
full f care _______________
A care cllect dne hpe pssible usual used wanted waste
B -able -ful im- -less re- un-
1 can be cllected__________2 full f use__________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________
構詞法 1. 合成法將兩個或兩個以上獨立且語義不同的單詞合在一起構成新詞的方法叫做合成法。例如：afternn, newspaper,?classmate, kind-hearted, middle-aged, hwever, maybe, himself, everyne, nthing。
2. 派生法在詞根前加前綴或在詞根后面加后綴。根據位置，分為前綴和后綴兩種。掌握一些常見的詞綴，對單詞的記憶和理解有很大的幫助。比如：我們學會care, 就能掌握careful, careless, carefully, carelessly。下面我們來學習幾個常見的前、后綴：
1. 表示否定意義 “無，不”的前綴：
implite, impssible
unppular, unhappy
disagree, disappear
2. 表示 “再”的前綴：
rewrite, reuse, recycle
3. 表示 “錯誤地”前綴：
mistake,misunderstand
–able表示“可能，易于，適合于”，構成形容詞，如：reuseable，lvable(可愛的)， cmfrtable
2. –ful 表示“充滿...的，具有...性質的”，構成形容詞，如：helpful, hpeful ,useful, careful
3. –less 與-ful 相反，表示“少的，不足的”，構成形容詞，如：helpless, hpeless, useless, careless
-atin-ment -er-r
educatin, realizatin
develpment, mvement
teacher, wrker
visitr, sailr
3轉化法英語中把一種詞性轉化為另一種詞性而詞形不變的方法。
happiness, fitness
ability, pssibility
3. 名詞、形容詞變動詞：
quicken, widen, sharpen
windy, rainy
dangerus, humrus
helpful, careful
2. Cmplete the sentences with the wrds in the bx
1 Plluted water is .2 It’s t thrw s much fd away .3 if yu lk after things well,yu may sme f them 4 It’s t clean up the river in such a shrt time .5 if we pay attentin t pllutin nw,the future will be .
a hpefulb impssiblec reused unhealthye wasteful
6Pairwrk :lk at the pics and answer the questins
1.What kinds f things can be recycled?2.Hw can these things be reused?3.Hw des this help the envirnment?4.Have yu ever recycled r used things that can be recycled? Hw?
7. Cmplete the cnversatin with the crrect frm f the phrases in the bx.
Mike: I hear yu're ff t the Caribbean fr a hliday! Lucky yu! But aren't yu(1)_____________the dangers f such lng flights n the envirnment Ken: Why shuld I be wrried?Mike: Planes cause a lt f pllutin.
be gd fr hear f lk afterthrw away turn ff wrry abut
wrried abut
Ken: I knw, but what can I d abut it? I already try my best t prtect the envirnment. I recycle, I dn't just (2)___________things if I dn't want them any mre. I (3)___________the lights when I leave a rm. Dn't tell me we shuldn't travel by plane any mre. Mike: N, f curse nt. But we can d smething t prtect the envirnment. Have yu (4)_________ future frests .cm?
It's an envirnmental grup. It helps t (5)___________trees. By planting mre trees, we can help keep the air clean, because trees (6) ____________the envirnment. In this way, we can reduce the dangers 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!
Decide what kind f pllutin yu want t talk abut and what yu think abut it and what can be dne.
Hmewrk :Discussing and writing： what yu can d t make yur schl green.