初中英语仁爱科普版九年级上册Topic 3 What can we do to protect the environment?多媒体教学课件ppt

这是一份初中英语仁爱科普版九年级上册Topic 3 What can we do to protect the environment?多媒体教学课件ppt，共38页。PPT课件主要包含了指点迷津，并 列 句，Grammar，Exercises，Summary，Assignment等内容，欢迎下载使用。
D yu knw hw these kinds f pllutin affect ur envirnment?
Air pllutin
The sky is nt blue any mre.
water pllutin
It makes the river dead.
Sil pllutin
It can nt plant any plants.
Nise pllutin
It makes the peple upset.
Light pllutin
Peple can nt see clearly.
What shuld we d t imprve ur envirnment? Or hw can we becme a greener persn?
We shuld plant mre trees.
We can ride a bike instead f driving a car.
We shuld put the rubbish int the dustbin.
We can teach the children t pick up the rubbish.
What shuld we d? Hw t be green?
We shuld reuse plastic bags instead f thrwing them away.
We shuld reduce using plastic bags.
We shuld cllect them fr recycling.
We call them the three R's.
What can we d at hme t prtect the envirnment?
We shuld reduce(减少） the waste we prduce. Fr example, we shuld use bth sides f paper and reuse（重新使用） plastic bags and recycle(重新回收） the cans.We call reduce, reuse, recycle three R.
Listen t 1a again and answer the questins.
(1) Wh is wrking fr an rganizatin that prtects the envirnment? Jane.(2) What’s her main jb? Her main jb is t help spread the message abut prtecting the envirnment. (3) Shuld we use bth sides f paper? Yes, we shuld.(4) Why is the recycling useful? It can prtect the envirnment, and it can save mney, t.
1a Listen, lk and say.
1b Listen t 1a and cmplete the table.
rganizatin
prtect the envirnment
spread the message
reduce the waste
waste paper
Key wrds
1.wrk fr an rganizatin 2.help spread the message 3.the three R’s ---reduce, reuse and recycle 4.reduce the waste 5.reuse plastic bags sb. t d sth. 8.srt
1c Read 1a and cmplete the sentences.
The three R’s ---______, ______ and _______ --- are imprtant. At hme, we can, fr example, use bth ______ f paper and reuse _____ bags. At schl, students are encuraged t _____ waste paper and ______________ because recycling can prtect the ____________ and _______ mney. Then we _______ them ______ they can be recycled.
sft drink cans
wrk fr… 为……工作, 为……坚持不懈地努力我们应该为和平而努力。
We shuld wrk fr peace.
她在一家电脑公司工作。
She wrks fr a cmputer cmpany.
2.encurage sb t d sth 鼓励某人做某事 爸爸经常鼓励我努力学习。 My father ften encurages me t study hard.
3. srt 作动词时意为 “整理、归类、分拣”; 作名词时相当于kind, 意为 “种类”。 srt ut 分类,整理 all srts f 种种, 各种各样的, a srt f 一种
We must srt ut the gd apples frm the bad nes.
我们必须把好的苹果与坏的分开。
(1) We shuld use plastic bags as few as pssible.(2) We shuld thrw the garbage in the river.(3) We shuld reduce the waste we prduce.(4) We shuld use bth sides f paper.(5) We shuld thrw the plastic bags rather than reuse them.
Yu can nd r shake the head! Ndding the head means agreement. Shaking the head means disagreement.
(1) Yu nd yur head and it means agreement. (2) Hurry up, r yu’ll miss the train.(3) Water is imprtant but sme peple dn’t save it. (4) Sme peple prtect animals while thers kill animals.
Discuss the wrds underlined
连词 r, and, but 和 while的用法
①表示并列关系，用and…②表转折，用but, while…③表选择，用r…
连词“r” ,“and” “but” “while” 连接的并列句
(1) 表示并列关系，用 “and” My father is a dctr and my mther is a wrker.(2) 表转折，用 “but” I bught him a shirt but he didn't like it.
(3) 表对比, 用 “while”, 意为“然而” Susan des husewrk every day while her husband des nthing.(4) 表选择, 用 “r”, 意为“或者, 否则”。 Nw yu can have a rest r yu can g t the cinema． Get up r yu’ll be late fr schl.
2 Cmbine the sentences with r, and, but r while, making sme changes if necessary.
1. Nise is a kind f pllutin. It’s harmful t ur hearing. Nise is a kind f pllutin and it’s harmful t ur hearing. 2. Wrk hard. Yu will fail the exam. Wrk hard, r yu will fail the exam.3. Ndding the head means agreement. Shaking the head means disagreement. Ndding the head means agreement while/but shaking the head means disagreement.4. Hurry up. Yu will miss the bus. Hurry up, r yu will miss the bus.5. He has failed several times . He never gives up. He has failed several times, but he never gives up.
1 . He is tall ,___his daughter is shrt. A. when B. while C. r D. And2 . Tm likes apples very much, ___he desn’t like bananas. A. and B. r C. but D. s
3. Miss Sun’s main jb is ___English well. She is ur new English teacher. A. help us with B. help us learn C. help us t learn D. t help us learn4. I was cking ___he was watching TV. A. after B. but C. because D. while
5. Wrk hard, ___yu may catch up with yur classmates sn. A .r B .but C. and D. yet 6. It’s very kind __yu __s. A. f; say B. f; t say C. fr; say D.fr; t say7. Call a taxi,___yu will miss the train. A. and B. thugh C. because D. r
8. Nt nly his parents but als his brther ___t the summer palace. They haven’t been back. A. have been B. have gne C. has been D. has gne9. Take mre exercise, ___yu’ll be healthier. A. and B .r C. but D. s
7. Hurry up, _______ yu will miss the train. A. and B. s C. hwever D. r8.He is pr , ___ happy. A.s B.neither C.but D.r9 He is rich, _____ he is happy, t. A. andB. sC. rD. but
3a Read the table and write the crrect letter under each picture. Then srt the garbage based n yur wn knwledge.
glass bttles
plastic bags
3b Listen t the cnversatin and check yur answers in 3a.
Ww! We’ve gt s much garbage! Sft drink cans, lunch bxes, plastic bttles, batteries, waste paper, paper bags and cups,…
4 Suppse yu will have a Clean-up Day. Wrk in grups and find ut the garbage. Then srt them based n 3a and talk abut them.
A: I think lunch bxes shuld be reused. B: What abut waste paper ? A: I think…
We learn: 1.Sme wrds: nd, agreement 2.Sme phrases：give up 3. Sme sentences: (1) We shuld reduce the waste we prduce. (2)Recycling can prtect the envirnment, and it can save mney, t. We can:1.Use the cmpund sentences with r, and, but and while. 2.Talk abut envirnmental prtectin.
Read 1a.Memrize the useful expressins and key sentences which we learn tday.Finish Sectin A in yur wrkbk.Preview Sectin B.