【教學(xué)內(nèi)容分析】
本模塊以環(huán)境污染以及環(huán)保為話題。本單元是通過工廠污染環(huán)境談?wù)摥h(huán)保，提倡綠色生活，鍛煉學(xué)生的語言表達(dá)能力，并提高學(xué)生的環(huán)保意識(shí).
【學(xué)情分析】
本模塊談?wù)摥h(huán)境污染和環(huán)保，污染問題普遍，更能激起學(xué)生的共鳴，調(diào)動(dòng)學(xué)生的積極性，激發(fā)學(xué)生的學(xué)習(xí)興趣。
Unit 3 Language in use
【教學(xué)目標(biāo)】
Knwledge bjective
T practice wrd-building: cmpunds, derivatives, cnversin
Ability bjective
Enable students t learn hw t prtect envirnment and Earth Hur.
Mral bjective
T aruse the awareness f students prtecting envirnment.
【教學(xué)重點(diǎn)】
T learn wrd-building: cmpunds, derivatives, cnversin
【教學(xué)方法】
PWP methd, task-based methd
【教學(xué)手段】
A tape recrder, multimedia and sme pictures
【教學(xué)過程】
Teaching Prcedures:
Step 1 Language practice
Reuse means “use again”.
Thugh pllutin is heavy nw, I dn’t think it’s hpeless.
Step 2 Make a 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.
A –able -ful im- -less re- un-
B care cllect hpe pssible use usual wanted waste
Step 3 Nw wrk in grups. Play the guessing game English fr Fun.
English fr Fun
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 ____________
Step 4 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;
re = again,
able = can be
renewable = can be new again
Step 5構(gòu)詞法
1. 合成法
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)成新詞的方法叫做合成法。合成法是一種比較靈活的構(gòu)詞方法，可以合成名詞、形容詞、副詞、代詞、動(dòng)詞等。例如：afternn, sprtsman, blackbard, sprtspersn, newspaper,
airplane, classmate, grandfather 等就是通過合成構(gòu)詞法構(gòu)成的名詞；kind-hearted, middle-aged, hard-wrking 等為合成形容詞；hwever, maybe, himself, everyne, nthing, verlk 等也都是通過合成法構(gòu)成的單詞。
2. 派生法
通過在詞根前面加前綴或在詞根后面加后綴構(gòu)成一個(gè)新詞的方法叫作派生法。要通過派生法理解和記憶單詞, 我們需要掌握常見的前綴和后綴及派生規(guī)律。
(1) 常見前綴
(2) 常見后綴
(3) 派生規(guī)律
由一個(gè)詞根加上相應(yīng)的詞綴可以派生出名詞、形容詞、副詞等，掌握派生規(guī)律對擴(kuò)充詞匯有很大幫助。例如：
由 interest 可以派生出：
uninteresting
interest — interesting — interestingly
interested — uninterested
由 help 可以派生出：
helpless — helplessly
help — helpful — helpfully
由 able 可以派生出：
enable
able unable
ability
disable
3. 轉(zhuǎn)化法
英語構(gòu)詞法中把一種詞性轉(zhuǎn)化為另一種詞性而詞形不變的方法稱作轉(zhuǎn)化法。常見的轉(zhuǎn)化有：
(1) 動(dòng)詞轉(zhuǎn)化為名詞
— Let’s talk abut it mre. 咱們再談?wù)勥@件事吧。
— I think we’d better finish the talk nw. 我想我們最好現(xiàn)在結(jié)束談話。
(2) 名詞轉(zhuǎn)化為動(dòng)詞
She gave me a cup f water. 她給了我一杯水。
Yu shuld water the flwers twice a day.
你應(yīng)該每天給這些花澆兩次水。
(3) 形容詞轉(zhuǎn)化為名詞
She was wearing a black dress.
她穿著一條黑色的裙子。
The girl in black lks very beautiful.
那個(gè)穿黑衣服的女孩看上去很漂亮。
Step 6 Exercises
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 __________.
Step 7 Cmplete the table.
Step 8 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.
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.
Step 9 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.
Step 10 Wrk in pairs
Lk at the pictures and answer the questins.
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?
Step 11 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 _____________ the pllutin that such lng plane jurney 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 ____________ things if I dn’t want them any mre. I __________ the lights when I leave a rm. Dn’t tell me I shuldn’t travel by plane any mre!
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 ______________ 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!
Step 12 Listening
Listen and check (√) the true sentences.
D nt thrw away things made f glass, plastic and paper, but recycle them when pssible.
b) Take a bag when yu g shpping.
c) It is OK t thrw used things away. Lking after them takes a lt f time.
d) Turn ff lights when yu d nt need them.
e) Ride a bike r walk, and d nt ften drive yur car.
f) Paper cups and bttled drinks make ur life easier. We can use them as much as pssible.
Step 13 Listen again and cmplete the table.
Step 14 Arund the wrld
Earth Hur
Read the passage and answer the questins.
When is Earth Hur held each year?
Why d peple switch ff the lights during Earth Hur?
When and where was the first Earth Hur held?
Which city take part in the event tday?
Step 15 Mdule task: Discussing what yu can d abut pllutin
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 bk.
If yu chse air pllutin, let’s watch a vide abut air pllutin frm a factry.
Step 16 Discussin
Discuss yur subject.
Take turns t say what yu think abut the prblems 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 ideas t the whle class.
Step 17 Hmewrk
假如你校將于下周五下午舉辦一場以環(huán)保為主題的英語演講比賽。請你根據(jù)下面的要點(diǎn)提示寫一篇100詞左右的演講稿，參加此次比賽。
要點(diǎn)提示：
1. 盡量選擇綠色出行方式；
2. 購物時(shí)攜帶自制購物袋；
3. 節(jié)約水電；
4. 循環(huán)再利用廢品。
前綴
含義
例詞
dis-
不
disagree, dislike
en-
使……處于某種狀態(tài)
enable, enrich
im-, in-
不
impssible, impatient, inexpensive
inter-
在……之間, 相互
internatinal, intercnnect
mis-
錯(cuò)誤地
mislead, misunderstand
nn-
不, 非
nn-smker, nn-native
re-
再, 重復(fù)
rewrite, retell
un-
不
unable, unhappy, unppular
后綴
功能
例詞
-er, -r
構(gòu)成名詞
teacher, wrker, visitr
-ian
musician
-ing
building, painting, shpping, meaning
-ist
artist, scientist
-ment
agreement, gvernment
-ness
cldness, happiness, illness
-th
truth, warmth
-tin
cmpetitin, educatin, infrmatin, invitatin
-ty
activity, safety
-ble, ible
構(gòu)成形容詞
cmfrtable, eatable, enjyable, pssible, prbable
-al
envirnmental, internatinal, natinal, traditinal
-ful
careful, helpful, useful
-ive
active, expensive
-less
careless, helpless, hmeless, useless
-ly
friendly, lvely, mnthly, weekly
-us
dangerus, famus
-teen
構(gòu)成數(shù)詞
eighteen, fifteen, seventeen
-th
fifteenth, fifth, frtieth, seventh
-ty
frty, sixty, twenty
-ly
構(gòu)成副詞
badly, carefully, carelessly, happily, quickly
Nun
Verb
Adjective
Adverb
useful/useless
hpe
hpefully / hpelessly
pllutin
——
water
——
——
waste
——
——
usually/unusually
Advice
Reasns
1. Dn’t thrw away things made f _________, but _______ them.
Thrwing things away is wasteful.
2. __________ yur plastic bags when yu can and __________ with yu when yu g shpping.
Plastic bags __________ recycle.
3. Use less electricity and il t _________.
4. Dn’t leave lights n and __________.
5. ________ and d nt ften drive yur car.
Prducing electricity and using il may cause ___________.

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