仁爱科普版九年级上册Unit 2 Saving the earth.Topic 1 Pollution has causes too many problems.背景图课件ppt

这是一份仁爱科普版九年级上册Unit 2 Saving the earth.Topic 1 Pollution has causes too many problems.背景图课件ppt，共23页。PPT课件主要包含了litter，piano，bus，cat，wind，Task 1，Task 2，Task 3，go deaf，sick等内容，欢迎下载使用。

Speak ut the names f the pllutin.
air pllutin
light pllutin
water pllutin
sil pllutin
nise pllutin
Nise is a srt/kind f pllutin.
There are all srts/kinds f nises.
They make us uncmfrtable and unpleasant.
n. 种类； v. 把……分类
adj. 使人不舒服的
Let’s write dwn the things that can make nises.
Underline the tpic sentence f the passage in 1a.
Give a prper title t this passage.
Read 1a and cmplete the fllwing tasks.
Nise is als a kind f pllutin and is harmful t human’s health.
Nise Pllutin
1. prduce A. t hurt smene2. deaf B. a type r a kind3. print C. nt be able t hear4. harm D. t grw r make smething5. srt E. t put wrds r pictures nt paper using a machine
1b Read 1a and match the wrds with their meanings.
Hw des nise harm peple’s health?
a. Peple ften ____ ______.b. Peple ften feel ____________ and __________.c. Peple may becme _____ r _____.d. Yur pint: _____________________________.
uncmfrtable
3. Which phrase has the same meaning as “is harmful t”?4. Which sentence shws that many teenagers’ hearing in America is nt gd?5. Why is the hearing f many yung Americans nt gd?
Answer the questins.
“d harm t”.
Many teenagers in America can hear n better than 65-year-ld peple d.
Because they always listen t lud pp music.
a. Nt all peple knw nise is als a kind f pllutin. _____ ________ knw(s) nise is a kind f pllutin ____ ______.b. Many teenagers in America can hear n better than 65-year-ld peple d. In America, many teenagers’ hearing is ____ _____ ____ 65-year-ld peple’s.
Change the fllwing sentences int the nes that have the same meanings.
Nt everyne
/sme peple
as well
Because they always listen t lud pp music.
1a Read and understand.
Peple wh wrk and live in nisy cnditins ften g deaf.
在嘈杂的环境中工作和生活的人容易变聋。
Difficult sentences
e.g. Beethven was deaf.
e.g. He _____ _____ because f the traffic accident.
went deaf
…many f the wrkers wh print newspapers and bks lse their hearing.
很多印刷报纸和书籍的工人丧失听力。
e.g. Lk! The man is printing smething.
lse ne’s hearing 丧失听力
2 Cmplete the fllwing passage with the crrect frm f each wrd.
Nise is a kind f _________ (pllute). Cars and machines prduce t much nise. It makes peple feel ___________ (cmfrtable) and __________ (pleasant). It als des great ______ (harm) t peple’s _________ (hear). Nise is very ________ (harm) t human’s _______ (healthy).
单项选择( ) 1. —The little girl was brn____, and she can’t hear anything. —Oh, I’m srry t hear that. A. lazy B. blind C. deaf D. lvely( ) 2. — What happened? — There is a girl_____ n the street. She culdn’t find her mther. A. cry B. crying C. t cry D. cries( ) 3. The ______ by tried t climb up the tree, but he failed. A. 5-year-ld B. 5-years-ld C. 5 year ld D. 5 years ld
用所给单词的正确形式填空。1. They are ding their hmewrk carefully. Yu’d better nt ________(disturb) them.2. It is knwn that smking des great _______(harm) t us.3. They had all ______ (srt) f juice t drink at the party last night.4. Our gvernment has slved sme _____________ (envirnment) prblems. 改为同义句。1. The by had hearing lss when he was brn. The by _____ _____ _________ when he was brn.2. Sme students g t schl n Saturdays. ____ _____ students g t schl n Saturdays.
envirnmental
lst his hearing
Has nise pllutin caused yu any prblems? If yes, share yur feelings with yur classmates.
What abut ther kinds f pllutin?
3 Chse ne kind f pllutin and discuss it in grups. The fllwing questins may help yu.1. What is … pllutin?2. What makes the … pllutin?3. What prblems des it cause?4. In what way is it harmful t peple’s life?5. What has been dne t slve these prblems?…
4 Write a shrt reprt abut a kind f pllutin based n 2 and 3. The tpic sentence f each paragraph is given belw.
… pllutin is…… pllutin is harmful t peple’s health…The gvernment has tried many ways t slve the prblem…
One pssible versin:
Air pllutin is becming mre and mre serius in tday’s wrld. Sme chemical factries prduce terrible gas and make the air bad. Buses and cars als prduce waste gas. In ur daily life, burning gas, il and cal als creates air pllutin. The air pllutin may cause a lt f prblems. It is harmful t peple’s health. It can cause breathing prblems, sre eyes and even cancer. It can als harm the plants, and the farmers will get less harvest. Luckily, the gvernment has tried many ways t slve the prblem, such as making laws t prevent the factry frm plluting the air.
1. Find ut the tpic sentence t understand the cntent f a paragraph.2. Write a passage accrding t the tpic sentences.
1. Sme wrds: deaf, print, hearing, lss, recently, disturb,srt, uncmfrtable, unpleasant, sentence, meaning2. Sme phrases: g deaf, lse ne’s hearing, hearing lss, n better than, d harm t3. Sme sentences: Hwever, nt all peple knw nise is als a kind f pllutin is harmful t human’s health.
Hmewrk1. Read 1a.2. Write a reprt accrding t Part 4.3. Finish Sectin C in yur wrkbk.4. List Grammar and Functins in this tpic. 5. Preview Sectin D.