英语九年级上册Topic 3 What can we do to protect the environment?备课课件ppt

这是一份英语九年级上册Topic 3 What can we do to protect the environment?备课课件ppt，共34页。PPT课件主要包含了showtime，Project等内容，欢迎下载使用。
Escape successfully
enjy the music
What des he want t tell us?
He tells us the imprtance f prtecting the earth and calls n us t stp distrying the earth .
we have prduced s much pllutin
stp it,r we'll be punished mre.
a shrt play
rles 1.the earth(控诉的怨妇，受伤害了要报复)2. bad men(实施破坏，承受报复)
(接龙游戏) I'm a greener persn
A in Grup1:I plant trees.B in Grup2:I never litter arund. C in Grup1:...
easier said than dne
d what ne say. 说到做到
ught t shut ff electricity
Easier said than dne.
Actin speakS luder
reach a tp speed f
sandstrm
cme int being
the greenhuse effect
build huses
In many cuntries,frests were cut dwn t prvide wd t build huses.
prvide sth. t d sth.提供某物以做某事
prvide sb. with sth.=prvide sth. t sb.ffer sb. sth. = ffer sth. t sb.早饭能给我们提供能量.Breakfast can prvide us with energy.Breakfast can prvide energy t us.Breakfast can ffer us energy.Breakfast can ffer energy t us.
Frests are the lungs f the earth.
Hw d yu understand “Frests are the lungs f the earth”?
Frests can remve carbn dixide frm theair and make xygen.
T plant new trees t replace them.
T prvide wd t build huses.
What difficulties d tree planters face when they plant trees ? (1)The weather may be very ht and dry r it may be very cld and wet. (2)There are ften many insects that bite these planters n their legs, arms, and faces while they wrk. (3)They carry heavy bags f small trees, and wrking in the muntains can be dangerus.
Paragraph 2
Why d they plant different kinds f trees ?They plant different types f trees s thatbirds and animals can live in the frests.
Paragraph 3
4. What will happen if we d nt plant new frests ? The frests will becme less and less. We cannt breathe withut them. 5. Wuld yu like t be a tree planter when yu are lder ? Why r why nt ? …
Have a try
(1)Even thugh tree planting is very difficult, they lve their wrk.(2)The weather may be very ht and dry r it may be very cld and wet. (3)There are ften many insects that bite these planters n their legs, arms, and faces while they wrk.
language pints
even thugh/even if意为：能与but 连用吗？即使我得步行，我还是要到那儿。
不能（在英语中，虽然不与但是连用；因为不与所以连用）
I'll get there,even if I have t walk.
一、并列句的概念： 并列句是由并列连词and， but， r， fr， s等把两个或两个以上互不依从，但意思紧密联系的简单句连在一起而构成的句子。其结构为：简单句+并列连词+简单句。
Cmpund Sentence (并列句)
and（和，而且）, bth…and, nt nly…but als（不但...而且）, as well as(也,和...一样)neither…nr(即不..也不..)等
r(或者;否则), either…r(要么...要么)等
but（但是）, hwever（然而，可是）, while (而,着重表对照关系)(不是...而是)等
fr（由于）, s（因此）等
Pass game(传球游戏)
rules: 1.抢答 2.当听到老师说：“pass”时，抢到答题 权的同学必须叫对方小组的一名同学来 答，对方答对，他赢。答错，你赢。
( ) 1. Help thers whenever yu can _____ yu’ll make the wrld a nicer place t live in. A. r B. and C. but D. while( )2. Crss the rad carefully, ________ yu’ll keep yurself safe . A. s B. r C. but D. and ( ) 3. Hurry up, ________ yu’ll be late fr the cncert . A. r B. s C. but D. and
( ) 4. ---Tell us smething abut Canada, OK? --- I’m srry. ________ Jack _______ I have ever been there. A. Either, r B. Nt nly, but als C. Bth, and D. Neither, nr ( ) 5. I always enjy visiting Lndn, ______ I wuldn’t like t live there. A. because B. s C. but D. and
( )6. There are many sprts lvers in his ffice. Sme lve climbing, ____ thers enjy swimming. A. Or B. frC. whileD. s( ) 7. ___ she ___ I knw his telephne number, because it has been changed. A. Bth; and B. Either; r C. Nt nly; but als D. Neither; nr
(要么...要么;或者...或者)
4. Either yu r I are n duty.［正］ Either yu r I am n duty.［析］ either…r 连接两个主语时，其谓语动词与相临近的一个主语相呼应，这也叫作就近原则。类似的用法还有r, neither… nr, nt nly…but als等。
Read 1a in each sectin.Memrize（背熟） the useful expressins and key sentences which we learn in this tpic.Finish Sectin D in yur wrkbk.Review（复习） what we learn in this unit.
1. Answer the fllwing questins t see hw green yu are.
Finding the Greenest Persn
0—4 Yu have nt started turning green yet!5—9 Yu are pale green.10—13 Yu are medium green. Try harder.14—18 Yu are bright green, but d nt stp trying.
1、D yu usually recycle newspaper r cans? Often(2). Seldm(1). Never(0). 2. What d yu usually take ? A bath(0). A shwer(2). 3. When yu have a shrt jurney,hw d yu usually g there ? Walk r ride a bike(3). G by car(0). G by bus(2). 4. What d yu usually d when yu see thers littering? Stp them(2). Pick the litter up(1). D nthing(0).
Finding the greenest persn
We learn: 1. Sme wrds: dry 2. Sme phrases: prvide sth. t d sth.; face difficulties; even thugh 3. Sme sentences: (1)Withut them, it cannt breathe. (2)They plant different types f trees s that birds and animals can live in the frests. We can: 1. Use the cmpund sentence（并列句） crrectly（正确地）. 2. Realize the imprtance f the frest.
Summary(本课小结)
cmplete the sentence(补全句子)
Stp it,r______________________Stp it,and_____________________