初中英语外研版 (新标准)九年级上册Unit 3 Language in use教学设计

这是一份初中英语外研版 (新标准)九年级上册Unit 3 Language in use教学设计，共8页。教案主要包含了教学目标，教学重点，教学方法，教学手段，教学过程等内容，欢迎下载使用。

【教学目标】
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.
【教学重点】
T learn wrd-building: cmpunds, derivatives, cnversin
【教学方法】
PWP methd, task-based methd
【教学手段】
A tape recrder, multimedia and sme pictures
【教学过程】
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构词法
1. 合成法
将两个或两个以上独立且语义不同的单词合在一起构成新词的方法叫做合成法。合成法是一种比较灵活的构词方法，可以合成名词、形容词、副词、代词、动词等。例如：afternn, sprtsman, blackbard, sprtspersn, newspaper,
airplane, classmate, grandfather 等就是通过合成构词法构成的名词；kind-hearted, middle-aged, hard-wrking 等为合成形容词；hwever, maybe, himself, everyne, nthing, verlk 等也都是通过合成法构成的单词。
2. 派生法
通过在词根前面加前缀或在词根后面加后缀构成一个新词的方法叫作派生法。要通过派生法理解和记忆单词, 我们需要掌握常见的前缀和后缀及派生规律。
(1) 常见前缀
(2) 常见后缀
(3) 派生规律
由一个词根加上相应的词缀可以派生出名词、形容词、副词等，掌握派生规律对扩充词汇有很大帮助。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. 转化法
英语构词法中把一种词性转化为另一种词性而词形不变的方法称作转化法。常见的转化有：
(1) 动词转化为名词
— Let’s talk abut it mre. 咱们再谈谈这件事吧。
— I think we’d better finish the talk nw. 我想我们最好现在结束谈话。
(2) 名词转化为动词
She gave me a cup f water. 她给了我一杯水。
Yu shuld water the flwers twice a day.
你应该每天给这些花浇两次水。
(3) 形容词转化为名词
She was wearing a black dress.
她穿着一条黑色的裙子。
The girl in black lks very beautiful.
那个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.
D yu knw PM 2.5? Let’s knw mre abut PM 2.5 and prtect the envirnment frm nw.
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 …”
Step 17 Hmewrk
Present yur grup ideas t the whle class前缀
含义
例词
dis-
不
disagree, dislike
en-
使……处于某种状态
enable, enrich
im-, in-
不
impssible, impatient, inexpensive
inter-
在……之间, 相互
internatinal, intercnnect
mis-
错误地
mislead, misunderstand
nn-
不, 非
nn-smker, nn-native
re-
再, 重复
rewrite, retell
un-
不
unable, unhappy, unppular
后缀
功能
例词
-er, -r
[来源:
构成名词
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
构成形容词
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
构成数词
eighteen, fifteen, seventeen
-th
fifteenth, fifth, frtieth, seventh
-ty
frty, sixty, twenty
-ly
构成副词
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 ___________.