初中英语仁爱科普版九年级上册Topic 3 What can we do to protect the environment?优质课件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?优质课件ppt，文件包含新课标·新版教材Unit2Topic3WhatcanwedoathometoprotecttheenvironmentSectionC课件30张pptx、p47-1amp3等2份课件配套教学资源，其中PPT共30页， 欢迎下载使用。

Learning bjectives
1. Sme wrds: technlgy, wheel, steel, require, German, guide , deep 2.Sme phrases: run ut 3.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 abut the advantages and disadvantages f sme kinds f energy.
What shuld yu d if yu wuld like t be 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. …
Lk at the pictures.D yu knw what they are?
electric (adj.) — electricity (n.)
It’s a maglev train. Its advantages are quiet, fast and clean, but it’s t expensive.
China is ne f the first cuntries in the wrld t use bigas technlgy .
Read 1a and chse the right picture fr each paragraph.
paragraph 2
paragraph 3
Paragraph 4
Read 1a and match the wrds with the pictures n Page 48.
A. acid rain B. nuclear energy C. bigas
Watch and understand
Paragraph 1
( ) It’s gd that peple prduce pwer frm cal. ( ) Nuclear pwer is dangerus. S we can’t use it. ( ) T slve the energy prblem, peple all ver the wrld are lking fr new ways t prduce pwer.
Read Paragraph 1, and then mark True (T) r False (F).
Paragraph 2
Read Paragraph 2, and finish the table
Disadvantage
lng prcess and high cst fr its building
Paragraph 3
Read Paragraph 3, and finish the table
save energy,n pllutin
t small t hld many peple
electric vehicle
Read Paragraph 4, and finish the table
quiet, quick, energy-efficient, n pllutin
much mre expensive than traditinal steel railways
maglev train
Read 1a and find ut sme language pints
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 CO. It can nt nly prtect the envirnment but als save enerey. It's t small thld 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 30km 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 tradirindl steel railways.
Language pints
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.
use sth. t d sth. 使用某物做某事 nuclear energy 核能
ne f +可数名词复数 之一
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 CO. It can nt nly prtect the envirnment but als save enerey. It's t small t hld many
in+the +年份s 在几世纪几十年代
be dne 被动语态
nt als 不但...而且
t+adj. t d sth. 太...而不能做某事
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 30km 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 tradirindl steel railways.
will be dne 将来时的被动语态
It takes sb. st. t d sth. 花费某人多长时间做某事
Read and remember
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 als 不但...而且t+adj. t d sth. 太...而不能做某事It takes sb. st. t d sth. 花费某人多长时间做某事 energy-efficient 节能
Match the phrases
use sth. t d sth. nuclear energy all ver the wrld lk fr bigas technlgy nt als t+adj. t d sth. It takes sb. st. t d sth. energy-efficient
使用某物做某事全世界寻找节能花费某人多长时间做某事生物技术不但...而且太...而不能做某事核能
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.
deep adj.深的，厚的 adv.深深地， 在深处
run ut 用完，耗尽E.g. He has run ut f fd, s his children are hungry.
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.
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.