英语九年级上册Unit 1 If everyone starts to do something, the world will be saved.备课课件ppt

这是一份英语九年级上册Unit 1 If everyone starts to do something, the world will be saved.备课课件ppt，文件包含Module12Unit1pptx、Unit1doc、M12U1a2wav、M12U1a3wav、M12U1a5wav等5份课件配套教学资源，其中PPT共36页， 欢迎下载使用。

What can we see frm the pictures?
1. Wrk in pairs. Lk at the pictures and talk abut them. Use the wrds in the bx t help yu.
listening and vcabulary
2. Listen and cmplete the sentences.1．The factry is causing a lt f ___________.2．There shuld be sme _______ t stp the pllutin.3．We can ________ waste prducts, such as ______ and paper in a recycling centre.
听力材料Mr Jacksn: Can anyne tell me what yu can see in the first pht?Betty: There’s a factry, and it’s causing a lt f pllutin.Mr Jacksn: Crrect. S what can we d abut it?Tny: Well, there shuld be sme rules t stp the pllutin.Mr Jacksn: What abut the secnd pht?
Daming: It’s a recycling centre. Waste prducts such as glass and paper can be recycled there.Mr Jacksn: Gd. Why d we need t d that?Lingling: T save energy, I guess.Mr Jacksn: Great!
3. Listen and read.Lingling: After ur lessn n the envirnment, I'm wrried abut the future. Pllutin is ur great enemy, and we have t fight it. If the rivers are plluted, farmers can't use the water fr their crps. ① Tny: And in sme places, pllutin frm factries spreads ver cities and villages. It makes peple ill, and may even kill them. Pllutin is a danger t ur health. ②
Betty: And there are s many cars n the rads. They use s much il and cause pllutin as well.Daming: But we're nly students. We can't d anything abut factries and cars. Betty: It's n use talking abut things we can't d. ③ We've gt t think f things we can d! Daming: Such : D yu think we can make ur schl a green schl?
Daming: What's a green schl?Lingling: At a green schl, every class cllects waste which can be recycled r used again. ④ Then the schl sells the waste and uses the mney t help students in pr areas. Daming: Nice idea! Betty: Students at a green schl als learn ways t save energy and recycle at hme. That means less waste. ⑤
Tny: That's a gd idea. Thugh pllutin is heavy nw, I dn't think it's hpeless. ⑥ If everyne starts t d smething, the wrld will be saved.
Nw cmplete the ntes.Pllutin prblems1．If the rivers are plluted, ___________________________________________.2．In sme places, pllutin frm factries ___________________________________________.3．The cars n the rads __________________________________________.
farmers can't use the water fr their crps
spreads ver cities and villages
use s much il and cause pllutin as well
What the students can d4．Supprt a green schl：every class _____________ which can be ____________________. Then the schl _______________________________ t help students _____________．5．Students learn ___________________________________. That means _________．
cllects waste
recycled r used again
sells the waste and uses the mney
in pr areas
ways t save energy and recycle at hme
4. Cmplete the passage with the crrect frm f the wrds in the bx.
Pllutin is ur great (1) ________. Pllutin frm (2) ________ is a danger t ur health, and may even (3) ________ peple. Factries smetimes (4) ________ the rivers, and farmers cannt use the water fr their crps. Pllutin (5) ________ ver cities and villages, and that (6) ________ even mre danger. Cars use a lt f (7) ________ and cause pllutin t.
5. Listen and mark the wrds which the speaker links.1．After ur lessn n the envirnment, I'm wrried abut the future.2．Students at a green schl als learn ways t save energy and recycle at hme.Nw listen again and repeat.
Prnunciatin and speaking
6. Wrk in pairs. List the pllutin prblems in yur place. Chse ne prblem and say what shuld be dne abut it.—The air pllutin in ur city is getting wrse. What can we d t stp it? —I think we can ride ur bicycles t schl mre.
pllute /pə'lu t/ vt. 污染e.g. Dn’t pllute the water. 不要污染水。Air pllutin is a serius prblem. 空气污染是个严重的问题。Dn’t pur the plluted water everywhere. 不要把受污染的水到处倒。
pllute v.pllutin n.plluted adj.
If the rivers are plluted, farmers can’t use the water fr their crps.
考题在线1：If the air is ___________(pllute), it is dangerus and will d harm t ur health. [黔西南改编]
考题在线2：The Chinese gvernment has dne a lt t cntrl plastic _____________(污染) in big cities. [连云港]
danger /'deɪndʒə(r) / n. 危险e.g. Running a red light is a danger t us.闯红灯对我们来说是危险的。The plice always help peple ut f dangerus situatins.警方总是帮助人们脱离险境。
be a danger t ... “对……有危害”，相当于“be bad fr/be harmful t”。
be in danger f 有……的危险be in danger 处于危险中be ut f danger 脱离危险
Pllutin is a danger t ur health.
考题在线3：It’ s reprted that plar bears are ___________ because f glbal warming (全球变暖). [连云港]
It’s n use ding... 做……是没有用的。e.g. It’s n use staying here. We must d smething.待在这儿没有用。我们必须做点什么。It’s n use watching t much TV.(=There is n use watching t much TV.) 看太多电视是没用的。
It’s n use talking abut things we can’t d.
It is a waste f time/a waste f mney/n gd/fun ding sth. 做某事是浪费时间/浪费金钱/没有好处/有趣的。
考题在线4：It’s n use ________ back t ne’s lst yuth.A. lk B. lked C. lking D. t lk
【分析】固定句型法。It is n use ding sth. 做某事是没有用的, 是固定句型。
waste/weɪst/ n. 废料; 废弃物; 浪费e.g. Dn’t thrw away the waste everywhere.不要到处乱扔垃圾。
At a green schl, every class cllects waste which can be recycled r used again.
waste time （in）ding sth. 浪费时间做某事waste mney n sth. 浪费金钱在某物上
Dn’t play cmputer games. It’s a waste f time. 不要玩电脑游戏, 它浪费时间。Yu shuldn’t waste mney. 你不应该浪费钱。Thrwing away waste paper is wasteful. 扔掉废纸是浪费的。
考题在线5：It’s a waste f time _________(talk) with him, because he never listens.
考题在线6：Dn’t ______ any mre time, r we will miss the meeting.A. save B. trust C. waste D. lve
【分析】词义辨析法。由“we will miss the meeting”可知前面句意为“不要再浪费时间了”。
节省 相信 浪费 爱
recycle /ri 'saɪkl/ v. 回收利用, 再使用(废品) e.g. Many things can be recycled.许多东西都可以被回收利用。Recycling is a gd way t prtect the envirnment.回收利用是一个保护环境的好方法。
前缀re- 表示“重复，再”，常见带前缀re-的单词还有rewrite（重写），rebuild（重建）等。
考题在线7：Yueda Grup has fund a way t ______ the waste and desn’t put it int the river any mre. [盐城]A. prduce B. recycle C. require D. prtect
【分析】用前后对比法解题。句意为“悦达集团已经找到一种回收利用废物的方法, 而且不用再把它倒入河里”。分析四个选项可知“回收利用”符合句意。
less /les/ adj. 较小的; 较少的 n. 较少数; 较少量e.g. He spends less time(in) ding experiments.他做实验花时间较少。She gives them less t eat in summer.她在夏天给它们吃较少的东西。
less than意为“少于，小于”，其反义词组为mre than。
That means less waste.
less 更少的，little的比较级，修饰不可数名词。fewer 更少的，few的比较级，修饰可数名词复数。mre 更多的，many/much 的比较级，修饰可数名词复数或不可数名词。
考题在线8：Credit cards(信用卡) matter a lt _______ than befre. We usually pay with smart phnes nw. [营口]A. little B. fewer C. less D. mre
hpeless /'həʊpləs/adj. 无望的e.g. We tried t stp the flames frm spreading, but we knew it was hpeless. 我们试图阻止火势蔓延, 但是我们知道这希望渺茫。
名词 + 形容词后缀 -less名词 + 形容词后缀 -fulhpeless → hpefulharmless → harmfuluseless → usefulcareless → careful
... I dn’t think it’s hpeless.
考题在线9：He felt ______ as sn as he heard the bad news, s he gave up fighting.A. unusual B. enjyableC. hpeful D. hpeless