初中英語Section A一等獎ppt課件-課件下載-教習(xí)網(wǎng)

nise pllutin
water pllutin
air pllutin
light pllutin
sil pllutin
What kinds f pllutin d yu knw?
The earth is badly plluted.
We shuld walk, ride the bike, take the bus r subway instead f driving.
What are yur ideas fr slving the prblem f air pllutin ?
instead f 代替；而不是
Presentatin
We shuld plant mre trees.
Use yur wn chpsticks when yu buy takeaway fd.
takeaway n. 外賣食物
What are yur ideas fr slving the prblem f waste pllutin ?
We shuld bring a bag when we g shpping.
We shuldn’t use plastic bags and thrw them everywhere.
We shuld thrw rubbish in the（right）bins.
Pssible answers:clse dwn the plluted factries;help t clean up the river/parks; plant mre and mre trees.ride a bike;bring a clth bag t g shpping;turn ff the lights when yu leave a rm;Dn’t use plastic bags any mre;recycle bks and paper; Dn’t thrw litter int the river;
:... S4:...
1. We shuld take _______ r _______ instead f driving.2. We shuld als _______ ______ _____. It’s gd fr health!3. Bring ___________ t g shpping.4. Never take _________________ r __________ when buying takeaway fd.5. ______________ in the bins and keep public places clean and beautiful.
wden chpsticks
plastic frks
Thrw rubbish
What can we d t reduce the pllutin in 2d?
Listen and cmplete.
Interviewer: Jasn and Susan, what are yur ideas fr slving these prblems?Jasn: Well, t cut dwn air pllutin, we shuld take the bus r subway instead f driving.Susan: Yeah, r ride a bike. There are ther advantages f bike riding. It’s gd fr health and it desn’t cst anything!Interviewer: Great ideas! What abut waste pllutin?
Rle-play the cnversatin.
Susan: Mmm, I think simple things like bringing a bag t g shpping can help. I started ding that a year ag.Jasn: Me, t. Als, I never take wden chpsticks r plastic frks when I buy takeaway fd. I use the nes at hme.Susan: And remember t thrw rubbish in the bins and keep public places clean and beautiful fr everyne.Interviewer: S tgether, ur actins can make a difference and lead t a better future!
remember t d sth. 記得去做某事
有作用；有影響 difference前可用big等詞修飾
make a difference t 對……有影響或作用
Language pints
1.Well,t cut dwn air pllutin,we shuld take the bus r subway instead f driving.
2.There are ther advantages f bike riding.
advantage的意思是“優(yōu)點(diǎn);有利條件”,可作可數(shù)名詞，也可作不可數(shù)名詞.反義詞是disadvantage,意思是“缺點(diǎn),不利條件”。 sister has many advantages.他的姐姐有很多優(yōu)點(diǎn)。advantage的相關(guān)短語：take advantage f... 利用……be/wrk t ne’s advantage 對某人有利eg: I have the advantage f him in running.我在跑步方面條件比他優(yōu)越。T her advantage,her vice is very sweet.對她有利的是,她的聲音非常甜美。
3.It’s gd fr health and it desn’t cst anything!
cst v. 花費(fèi)；使付出.指花費(fèi)金錢，主語通常是物。cst的過去式和過去分詞均為cst。 new shirt cst Mr Wang 200 yuan. 王先生花了200元買了新襯衫。 Hw much des the new cmputer cst? 新電腦花了多少錢？【拓展延伸】cst還可作名詞，意為“花費(fèi)；價錢”。Culd yu tell me the cst f the trip?
【辨析】　take，spend，pay和cst都可以表示“花費(fèi)”，但它們的用法各有不同。
根據(jù)句意用take, spend, pay或cst的適當(dāng)形式填空。1. That new car ________?them lts f mney.2. Mna __________ 50 yuan n the bks just nw.3. It usually _______? me an hur t d my hmewrk.4. Yu shuld __________? sme time practising yur prnunciatin.5. My brther _______?6, 000 yuan fr the new cmputer yesterday.
4.S tgether,ur actins can make a difference and lead t a better future!
make a difference (t…)表示(對……)產(chǎn)生影響或作用;有關(guān)difference的短語：make n difference 對……沒有影響make sme difference 對……有些影響make a difference between 對……區(qū)別對待eg: Learning English well can make a difference t yur future.學(xué)好英語會對你的前途有影響。The new teacher always encurages little Tm. This has made a big difference t him.新來的老師總是鼓勵小湯姆，這對他影響很大。
減少代替（做某事）騎自行車（名詞）對...有好處外賣食品記得要做某事產(chǎn)生影響或作用導(dǎo)致,引導(dǎo)
instead f ding sth
bike riding
takeaway fd
remember t d sth
make a difference
Can yu translate the fllwing int English?
Rle-play the cnversatin in 2d.Try nt t lk at yur bk.
Interviewer: Jasn and Susan, what Jasn: Well, t cut dwn air pllutin, we shuld Susan: Yeah, : Great ideas! What : Mmm, I think : Me, : And : S
Read the fllwing sentences and find ut the grammar items.
Grammar Fcus
be (am/is/are) + 動詞-ing
1.表示現(xiàn)在正在進(jìn)行或發(fā)生的動作。
2.表示現(xiàn)階段或當(dāng)前一段時間之內(nèi) 正在進(jìn)行的動作。
nw、lk、listen、these days等
a.一般情況下，在動詞詞尾后加-ing。如：g → ging。b.以不發(fā)音的e結(jié)尾的動詞，去掉e加-ing。如：have → having。c.以重讀閉音節(jié)結(jié)尾的動詞，末尾只有一個輔音字母，雙寫這個輔音字母，再加-ing。如：run → running。
動詞-ing形式的構(gòu)成
have/has + 過去分詞
1. 表示過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成的影響或結(jié)果。
2. 從過去某一時間開始并一直持續(xù)到現(xiàn)在且還有可能持續(xù)下去的動作。
already、yet、ever、never、fr +時間段、since +時間點(diǎn)、s far、in the 等
一般情況下，在動詞后加-ed。如: wrk → wrked。在以e結(jié)尾的動詞后只加-d。如: clse → clsed。以輔音字母加y結(jié)尾的動詞，應(yīng)將y改為i再加-ed。如: study → studied。以重讀閉音節(jié)結(jié)尾的動詞，要雙寫末尾的輔音字母再加-ed。如: stp → stpped。
不規(guī)則動詞的過去分詞: AAA型 put put putAAB型 beat beat beatenABA型 becme became becmeABB型 get gt gt/gttenABC型 begin began begun
用括號中所給動詞的正確形式填空。The girls ___________ (dance) in the classrm nw.It’s 5 ’clck nw. Mike ____________ (have) dinner.—_______ yu ever ________ (be) t the US? — Yes, twice.4. I __________ (live) here since 1999.
are dancing
is having
Have been
have lived
主動語態(tài)表示主語是動作的執(zhí)行者。被動語態(tài)表示主語是動作的承受者，即行為動作的對象。I cleaned my rm. → My rm was cleaned by me.I saw him crss the rad and enter the shp. → He was seen t crss the rad and enter the shp.
在含有使役動詞 (如：make) 或感官動詞 (see、watch、ntice、hear等) 的主動語態(tài)的句子中，這些詞后常跟省略t的動詞不定式，但是改為被動語態(tài)時則要把省去的t還原。
被動語態(tài)的基本結(jié)構(gòu)：助動詞be + 及物動詞的過去分詞一般現(xiàn)在時的被動語態(tài)：am/is/are + 過去分詞一般過去時的被動語態(tài)：was/were + 過去分詞一般將來時的被動語態(tài)：will be/is ging t be + 過去分詞含情態(tài)動詞的被動語態(tài)：情態(tài)動詞 + be + 過去分詞
用括號中所給動詞的正確形式填空。1. — D yu ften clean yur classrm? — Yes. Our classrm ________________ (clean) every day.2. — Did yu g t Jack’s birthday party? — N, I _______________. (invite)3. A new highway in my hmetwn (build) next mnth.
is cleaned
wasn’t invited
will be built
1. 情態(tài)動詞一般沒有人稱和數(shù)的變化。2. 情態(tài)動詞后接動詞原形。3. 常用的情態(tài)動詞有：can/culd、may/might、must/have t、shuld/ught t、wuld、need等。
根據(jù)題意選擇最適合的情態(tài)動詞。1. — yu pass me a pen? I’d like t write dwn the phne number. — Sure. Here it is. A. Can B. Need C. Might D. Must2. Yu wrry abut me. It’s nthing serius. A. can’t B. mustn’t C. needn’t D. wn’t
3. —May I g t the cinema, Mm? — Certainly, but yu be back by 11 ’clck. A. can B. may C. must D. need4. —Excuse me. Is this the right way t the Summer Palace? — Srry, I’m nt sure. But it be. A. might B. mustn’t C. can’t D. must5. The man in the ffice be Mr. Black, because he went hme just nw. A. mustn’t B. may nt C. can’t D. needn’t
used t意為“過去常常做某事”，后接動詞原形。used t句型的否定句形式：didn’t use t句型的一般疑問句形式：Did + 主語 + use t d表示過去常常做某事，而現(xiàn)在往往不做了；be used t ding表示習(xí)慣于做某事。
根據(jù)漢語意思補(bǔ)全句子。她過去常常周末和朋友閑逛。 She _____________________ with friends n weekends.2. 他習(xí)慣于每天晚上睡得很晚。 He _____________________________at night.
used t hang ut
is used t staying up
Fill in the blanks with the crrect frms f the verbs in brackets.
Je: ______ yu ever ________ (take) part in an envirnmental prject? Ken: Yes, I have. I _______ (help) with a Clean-Up Day last year. It was __________ (cnsider) the biggest clean-up prject this city______ ever ________ (have). Je: Hw many peple ________ (take) part?
Ken: I ___________ (think) mre than 1,000 peple ______(cme) t help ut. Je: That’s fantastic! I guess everyne in this city is ______ (try) t imprve the envirnment. Ken: Yes, we can’t affrd t________ (wait) any lnger t take actin!
affrd作動詞，常用在can, culd, be able t 等后。affrd sth. “買得起某物”；affrd t d sth.“負(fù)擔(dān)得起某事”。
Fill in the blanks with the apprpriate mdal verbs frm the bx.
Peple _________ think that big things__________________ be dne t save the earth. Many frget that saving the earth begins with small things. Fr example, yu ______________ save electricity by turning ff the lights when yu leave a rm. Yu _______________ als use reusable bags instead f plastic bags.
can wuld culdhave t shuld must may/ might
shuld/have t/must
can/culd/shuld
adj. 可重復(fù)使用的；可再次使用的
I think it’s a great idea that yu nw _______ pay fr plastic bags in sme stres. And instead f driving t schl r wrk, yu _______________ ride yur bike r walk. If it’s far, yu __________ take the bus. All these small things __________ add up and becme big things that ______________ imprve the envirnment. Let’s take actin nw!
wuld/can/culd
Make a list f things that peple can d t help the envirnment and discuss yur list with yur partner.
I think that everyne shuld use public transprtatin.
I disagree. It’s difficult fr parents with yung children t use public transprtatin...
use public transprtatin
n. 運(yùn)輸業(yè)；交通運(yùn)輸
use public transprtatin (n.交通運(yùn)輸);turn ff the lights when yu leave a rm;use reusable bags instead f plastic bags;ride yur bike r walk t schl r wrk;stp using paper napkins(餐巾紙);recycle bks and paper...
【2020·江西省】—The cffee’s finished!—Oh, srry! I ______t the shp t get sme.A. am ging B. was gingC. wentD. have gne【2020·江蘇徐州市】— Alice has gne ut.— Oh, has she? What time ______she_____?A. has; gne B. is; gingC. will; gD. did; g（2021·山東菏澤市·中考真題）—It is reprted that the First Flight Ceremny f Heze Mudan Airprt was held n April 2nd, 2021. —Yes. Great changes _____ in my hmetwn since I left hme.A．have taken placeB．were taken placeC．tk plac
【2020·湖北襄陽市】— Why have I never seen this kind f 5G mbile phne?— Because it by Huawei last week.A. was prducedB. wuld prduceC. have prducedD. was prducing【2020·湖北十堰市】The last Beidu GEO-3 ______ int space successfully n June 23, 2020.—As Chinese, we feel prud f it.A. sendsB. sentC. is sentD. was sent【2020·青海省】 — What are yu expecting t d when the flu stps spreading?—I _____ the wrld and enjy different fd.A. g arundB. have been n a tur fC. will travel arund

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