英语九年级上册Unit 3 Language in use试讲课ppt课件

这是一份英语九年级上册Unit 3 Language in use试讲课ppt课件，文件包含外研版英语九上M12U3pptx、外研版英语九上M12U3A8mp3、外研版英语九上M12U3A9mp3、外研版英语九上M12wordsandexpressionsmp3等4份课件配套教学资源，其中PPT共38页， 欢迎下载使用。

1. 找出；查明；弄清楚 ；2. 骑自行车上学 ；3. 关闭 ；4. 请求；要求 ；5. 处理 ；6. 把……分类…… ；7. 扔掉；丢弃 ；8. 对……有害 ；
ride a bike t schl
be harmful t
9. 尽可能…… ；10. 如果可能 ；11. 最好做某事 ；12. 把……变成…… ；13. 许多；很多 ；14. 希望 ；15. 采取措施 ；16. 以便；为了；目的是 ；17. 起草 。
It is better t d sth.
Read P98 A3 tgether.
Reuse means “use again”.Thugh pllutin is heavy nw, I dn’t think it’s hpeless.
Language practice
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称作合成法。
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称作派生法。
uninterested
interestingly
uninteresting
interesting
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为转化法。
(1) v. → n. — Let’s talk abut it mre. — I think we’d better finish the talk nw. — 咱们再谈谈这件事吧。 — 我想我们最好现在结束谈话。
(2) n. → v. — She gave me a cup f water. — Yu shuld water the flwers twice a day. — 她给了我一杯水。 — 你应该每天给这些花浇两次水。
(3) adj. → n. — She was wearing a black dress. — The girl in black lks very beautiful. — 她穿着一条黑色的裙子。 —那个穿黑衣服的女孩看上去很漂亮。
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 berenewable = can be new again
Learning t learn
-able -ful im- -less re- un-
care cllect hpe pssible use usual wanted waste
careful careless
hpeful hpeless
reuse usable useful useless
wasteful
Nw wrk in grups. Play the guessing game English fr Fun.
1. 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 ___________
English fr Fun
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 _________.
hpeful impssible reuse unhealthy wasteful
【知识点1】clean up意为“把……打扫干净”，指对某物进行整理或打扫，使其变得更加干净。该短语是“动词+副词”构成的短语。如果它的宾语是代词要放在“动词+副词”中间，如果它的宾语是名词既可以放在“动词+副词”的中间也可以放在动词和副词的后面。 My mther is cleaning up the kitchen nw. 我们现在正在打扫厨房。【拓展】up表示“结束，完了”的有关短语：eat up吃光；burn up烧光；use up用光。
We’d better the classrm befre ur class begins. A. clean up B. eat up C. burn up D. use up
【知识点2】pay attentin t意为“注意，重视”，t在此处是介词，后接名词、代词、动名词或从句作宾语。attentin是一个抽象名词，没有复数形式。如： Pay attentin t listening, dn’t make nise. 注意听，别出声。 Yu shuld give yur full attentin t what yu are ding. 你应该全神贯注地做你所做的事情。【拓展】常见以介词t结尾后接动名词的词组有：lk frward t盼望，期待；thanks t多亏了；由于；喜欢……胜过喜欢……；be/get/becme used t习惯于；put ne’s mind t全神贯注于；give ne’s life t献身于。
When yu visit a museum yu shuld the instructins and dn’t be against them. A. cmpare with B. lk frward t C. pay attentin t D. try ut
usefully/ uselessly
hpeful/ hpeless
plluted/ unplluted
wasteful/ wasted
wastefully
usual/ unusual
She was _______ that her new jb wuld make her mre successful.
1. 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.
A ________ 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.
1. What kind f things can be recycled?2. Hw can these things be used?3. Hw des this help the envirnment?4. Have yu ever recycled r used things that can be recycled? Hw?
Clth, paper, cans, plastic, glass, etc.
Recycled paper can be used fr ntebks, tickets r writing paper.
It helps save a lt f resurces and reduce greenhuse gas emissins.
Yes. I recycled aluminum cans and paper by selling them t the recycled factry.
Mike: I hear yu are ff t the Caribbean fr a hliday! Lucky yu! But aren’t yu (1) _____________ the pllutin that such lng plane jurneys may cause fr the envirnment? Ken: I knw, but what can I d abut it? I already try my best t prtect the envirnment. I recycle. I dn’t (2) ___________ things if I dn’t want them any mre. I (3)__________ the lights when I leave a rm. Dn’t tell me I shuldn’t travel by plane any mre!
be gd fr thrw away turn ff wrry abut
wrried abut
【知识点3】be ff意为“离开”，常与介词t连用，be ff t...意为“动身去……”，相当于“leave fr...”。如： I am ff t schl 我动身去上学。 He will be ff t Beijing sn. 他很快就要动身去北京。
He will be Beijing sn. A. f t B. f fr C. ff t D. ff fr
【知识点2】try ne’s best t d sth. 意为“尽某人最大努力做某事”，相当于d ne’s best t d sth.。如： I tried my best t pass the exam. 我尽最大努力通过考试。 I will try my best t make yu happy. 我尽最大努力使得你快乐。
Try yur best all the new wrds. A. remember B. remembers C. t remember D. remember
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 (4) ____________ 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!
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.
glass, plastic and paper
take a bag
are hard t
reduce pllutin
waste electricity
Walk r cycle
Earth Hur is held tward the end f March each year. During Earth Hur, peple all acrss the wrld switch ff the lights they d nt need. They d this t shw their awareness f climate change. The first Earth Hur was held in 1977 in Sydney, where mre than 2.2 millin peple switched ff their lights. Tday, mre and mre cities are taking part in the event, such as Beijing, Lndn, Rme and New Yrk, and landmarks like the Empire State Building and the Glden Gate Bridge will g dark.
Arund the wrld
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.
Mdule task : Discussing what yu can d abut pllutin
Take turns t say what yu think abut th 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…”
Pssible answer
Yes, I agree with yu that air pllutin is ne f the mst serius prblems. A great deal f energy is needed t run the factries f mdern industrial natins. Autmbile, trains, planes and busses need energy, t. Nearly all f this energy is prduced by burning fuels. The burning prduces wastes, sme f which remain in the air, causing air pllutin.Scientists are finding ways t stp air pllutin especially in big industrial areas and densely-ppulated cities. They are studying new ways f generating electricity that may be less damaging t the envirnment. At the same time, many pwer plants are being mdernized t give ff less plluted material. Als, engineers try t design and lcate new pwer plants t d minimum damage t the envirnment.
Hwever, it may be that we still have a lng way t g befre we have a "clean" wrld. Nearly all f the cuntries are trying hard t prevent and cntrl air pllutin. There indeedseems t be n end t tasks that envirnmentalists will be required t d. Peple will cntinually find new ways t cntrl pllutin.
一、用所给单词的适当形式填空。We shuld give up thse _________ (waste) habit in rder t save ur wrld.Sme factries________ (cause) pllutin.I think _____________ (envirnment) educatin fr kids is necessary.Mst students n ur schl ften cllect ________ (reuse) waste fr recycling.If we dn’t lk after ur earth well, the future will be _________ (hpe).
envirnmental
二、单项选择。1. ---- Jane, yur bedrm is s dirty. ---- Srry, I’ll . A. clean it up B. clean up it C. clean them up2. We shuld pay attentin t the answers carefully in the exam. A. check B. t check C. checking D. checks3. Yu can’t sneeze and keep yur eyes at the same time. A. pen B. pens C. pened D. pening4. Tim Shanghai yesterday mrning. A. went back B. went ut C. was ff D. was ff t5. Many children are left alne in the cuntryside. Let’s try ur best them. A. help B. t help C. helping D. helps
三、同义句转换。It’s nt plite t speak t thers with yur muth full f fd.It’s _________ t speak t thers with yur muth full f fd.The teacher asked him t write the cmpsitin again.The teacher asked him t _________ the cmpsitin.He’s nt ppular with sme f the neighbrs.He’s _________ with sme f the neighbrs.I hate sweet fd. Especially, I dn’t like eating cake.I hate sweet fd. Especially, I _________ eating cake.Hamburgers, candy and ice cream aren’t healthy fd.Hamburgers, candy and ice cream are __________ fd.
把……打扫干净 ；注意，重视 ；使得(某人/物)一直做某事 ；离开 ；尽某人最大努力做某事 ；不再 ；关掉 。
pay attentin t
keep (sb./sth.) ding sth.
try ne’s best t d sth.