初中英语仁爱科普版九年级上册Topic 3 What can we do to protect the environment?优秀课件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?优秀课件ppt，共27页。PPT课件主要包含了section B，renewable，Example，We learn，We can，technology，Germans，wheel，requires，guide等内容，欢迎下载使用。

Learn sme new wrds and phrases. Get t knw: acid, nuclear, bigas, straw, renewable, disadvantage, prcess, electric, best-knwn, maglev train, per, efficient, path, steel, wave, surce, run ut, wrldwide, sunlight, steam Be able t use: technlgy, require, German, wheel, guide, deepBe able t use sme useful expressins. (1)In many cuntries, peple prduce pwer frm cal, but it is very dirty and causes acid rain. (2)They will never run ut s they are called renewable surces.Talk abut the advantages and disadvantages f sme kinds f energy.
Hw can we becme a greener persn?
Turn ff the lights when we leave a rm.Walk r ride a bike instead f taking a bus r a taxi.Take a clth bag when we g shpping. Dn’t drive a car if yu travel a shrt distance. Write n bth sides f the paper. Dn’t use the things that can be used nly nce. After we wash faces, we can use the water t wash clthes. Turn ff the TV set while we are away. …
1a Read and understand.
Lk at the pictures. D yu knw what they are? Chse the right picture fr each paragraph.
Paragraph 2
Paragraph 3
Paragraph 4
In many cuntries, peple prduce pwer frm cal, but it is very dirty and causes acid rain. Sme cuntries use nuclear energy t prduce pwer. Hwever, nuclear pwer can be very dangerus. T slve the energy prblem, peple all ver the wrld are lking fr new ways t prduce pwer.China is ne f the first cuntries in the wrld t use bigas technlgy. Farmers recycle straw, grass and animal waste t make bigas. This renewable energy is used in peple’s everyday lives. Its key disadvantage is that the prcess requires a lng time (up t 30 days) and the cst is high.
Electric vehicles were develped in the 1990s. On April 11, 2010, a new kind f electric vehicle named “Yezi” was shwn in the 2010 Shanghai Wrld Exp. It prduces electricity frm the sun, the wind and CO2. It can nt nly prtect the envirnment but als save enerey. It’s t small t hld many peple, but larger mdels will be develped in the near future.In China, the best-knwn maglev train is the German-built ne in Shanghai. It takes peple just 7 minutes t g t the airprt 30 km away. The train can reach a tp speed f 431 km per hur. It is quiet and quick. There is n wheel nise, because there are n wheels. Maglev trains are very energy-efficient and d nt pllute the air. Hwever, maglev guide paths are much mre expensive than traditinal steel railways.
1b Read 1a and match the wrds with the pictures n Page 48.
A. acid rain B. nuclear energy C. bigas
1c Read 1a again and cmplete the table.
lng prcess and high cst
save energy, n pllutin
t small t hld many peple
quiet, quick, energy-efficient, n pllutin
much mre expensive
2a Read the passage belw and match the pictures with the sentences. Then discuss in detail the use f ne energy surce.
The sun, wind, waves and heat frm deep in the earth are energy surces. They will never run ut s they are called renewable surces. In 2011, abut 16% f energy used wrldwide came frm renewable surces. The use f it is increasing rapidly each year.
Wind can prduce electricity in many places. Peple use sunlight t prduce electricity. Sea waves are used fr prducing electricity. Peple use ht water r steam frm deep in the earth t prduce electricity and heat fr factries, schls and hmes.
2b Take ntes n yur discussin and write a passage with them.
Yu may begin like this: Sunlight can prduce a lt f energy. Peple began t use the energy frm the sunlight in different ways many years ag…
Sunlight can prduce a lt f energy. Peple began t use the energy frm the sunlight in different ways many years ag. We can use it t warm the huse in the winter, t heat the water fr baths, and t prduce electricity. What’s mre, we can even use it t run vehicles directly in the near future. As is knwn t us, the energy frm the sunlight has a lt f advantages. Fr example, it is clean, renewable and nn-plluting. Besides, it des n harm t ur nature. S we’d better use it as much as pssible.
1. Sme cuntries use nuclear energy t prduce pwer.
use sth. t d sth. 使用某物做某事nuclear energy 核能
2. Hwever，nuclear pwer can be very dangerus.
hwever 然而dangerus 危险的
3. T slve the energy prblem,peple all ver the wrld are lking fr new ways t prduce pwer.
all ver the wrld 全世界lking fr 寻找
4. China is ne f the first cuntries in the wrld t use bigas technlgy.
ne f +可数名词复数 ……之一bigas technlgy生物技术
5. Electric vehicles were develped in the 1990s.
in+the +年份s 在几世纪几十年代
6. It can nt nly prtect the envirnment but als save enerey.
nt als 不但……而且……
7. It’s t small t hld many peple, but larger mdels will be develped in the near future.
t+adj. t d sth. 太……而不能做某事
8. It takes peple just 7 minutes t g t the airprt 30km away.
It takes sb. sth. t d sth. 花费某人多长时间做某事
9. Maglev trains are very energy-efficient and d nt pllute the air.
energy-efficient 节能的
use sth. t d sth. 使用某物做某事nuclear energy 核能 all ver the wrld 全世界lk fr 寻找bigas technlgy 生物技术nt nly... but als 不但……而且t+adj. t d sth. 太……而不能做某事It takes sb. sth. t d sth. 花费某人多长时间做某事 energy-efficient 节能
Talk abut the advantages and disadvantages f sme kinds f energy.
1. Sme wrds: acid, nuclear, bigas, straw, renewable, disadvantage, prcess, electric, best-knwn, maglev train, per, efficient, path, steel, wave, surce, wrldwide, sunlight, steam, technlgy, require, German, wheel, guide, deep2. Sme phrases: run ut3. Sme sentences: (1) In many cuntries, peple prduce pwer frm cal, but it is very dirty and causes acid rain. (2) They will never run ut s they are called renewable surces.
一、单项选择( ) 1. We all knw that learning a language ______ time and effrt.A. requires B. reduces C. remves ( )2.We think human beings may live n the mn in the future. ______, n ne is sure abut it.A. While B. Whatever C. Hwever( )3. —What d yu think f yur new classmate? —She ______ has gd grades ______ is glad t help thers.A. B. nt nly... but als C.
一、单项选择( )4. —D yu take exercise every day? —Yes. It usually ______ me abut half an hur t d that.A. spends B. csts C. takes ( )5. —D yu think fresh water can ______ n earth ne day?—I’m afraid s, if peple dn’t save it.A. take utB. g ut C.run ut
二、用所给的适当形式填空guide , wheel, require, German, technlgy1. He studies at a cllege f science and ____________.2. Kris and Karl cme frm Eurpe. They’re ___________.3. The frnt ________ f the bike was ut f shape.4. Please call me if he __________ my help.5. I knw the place well, s let me be yur _________.