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

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ppt课件，共52页。PPT课件主要包含了构词法，Exercises，use，hope，pollute，water，waste，wastefully，Listening，recycle等内容，欢迎下载使用。
Mdule 12 Save ur wrld
Unit 3Language in use
Reuse means “use again”.Thugh pllutin is heavy nw, I dn’t think it’s hpeless.
Language practice
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
cllectable, usable, careful, hpeful, useful, wasteful, impssible, careless, hpeless, useless, reuse, unusual, unwanted
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 ____________
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
Learning t learn
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。
(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： uninterestinginterest — interesting — interestingly interested — uninterested
由 help 可以派生出： helpless — helplesslyhelp — helpful — helpfully由 able 可以派生出： enableable 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。
Cmplete the sentences with the wrds in the bx.
hpeful impssible reuse unhealthy wasteful
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
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.
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.
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.
Lk at the pictures and answer the questins.
Wrk in pairs
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?
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.
wrried abut
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!
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
are hard t
reduce pllutin
waste electricity
Walk r cycle
Arund the wrld
Read the passage and answer the questins.When is Earth Hur held each year?Earth Hur is held tward the end f March each year.Why d peple switch ff the lights during Earth Hur?They d this t shw their awareness f climate change.
When and where was the first Earth Hur held?The first Earth Hur was held in 2007 in Sydney.
Which city take part in the event tday?Mre and mre cities are taking part in the event, such as Beijing, Lndn, Rme and New Yrk.
Wrk in grups. Decide what kind f pllutin yu want t talk abut.
Discussing what yu can d abut pllutin
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.
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 ideas t the whle class.