上海版牛津初中英语课件8A Chapter 6(1).ppt
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1、Oxford English,8A Chapter 6,Oxford 8A Chapter Six,课时安排(8-9课时),Reading&Listening:4课时Language:2课时Writing:1课时Speaking,Using English&More practice:1-2课时,Period 1,Teaching targets:1.To develop students abilities of predicting,speaking and listening.2.To let students realize the importance of trees in the
2、ir life.Problems to solve:1.Pre-reading.A(P78)2.Listening(P81),What are the problems in the following pictures?,The environment is polluted!,What are the problems in the following pictures?,pollution,air pollution,water pollution,noise pollution,making things dirty and unhealthy,P78.A-2,pollution fi
3、ghters,Trees are pollution fighters,How to solve the problems?,What do you know about trees?What good are trees?,e.g.green;cool;some special trees;table;furniture;summer;Tree-planting Day(12 March);forest;oxygen,Step 2.Discussion,What can we get from trees?,eat,drink,use,P78-A.3,rubber,oil,chopstick
4、s,cotton,pencil,tea,table,book,nuts,beans,fruit,Trees are very useful.Judys school took part in a tree-planting campaign.To attract people to join,Judy and Rita wrote a notice.Listen to them talking,and complete the notice.,Come and help us to plant some trees!Eight reasons for helping to plant tree
5、s:1 Trees make streets more _.2 Trees make streets less _.3 Trees make our air _.4 Trees make our air _.5 Trees make _ to keep us alive and _.6 Trees provide us with _ things like _ and _.7 Trees help us to fight _.8 Trees are in _.,Step 3.Listening,beautiful,noisy,purer,cooler,oxygen,healthy,useful
6、,fruit,paper,pollution,danger,From listening,we know that trees can help us to fight pollution.,Air pollutionWater pollutionNoise pollution,Trees are so important.,Do you think trees live shorter than people and animals?,P78-A.1,How long do trees live?,150 years,4000 years,3 years,mice,people,whales
7、,tortoises,trees,70 years,40 years,Do you think trees can really live for 400 years?,What happens to trees now?,If therere no trees,what will our earth be like?,What will our earth be like if therere no trees?,What should we do to protect our earth?,Period 2,3,Teaching targets:To train the class rea
8、ding skills and good habits on reading.Problems to solve:Exercises B,D and E,Air pollution,Water pollution,Noise pollution,Teaching procedure,Step 1:,POLLUTION FIGHTERS,Read the title,subtitle,pictures,the first paragraph and the last paragraph,the first sentence and the last sentence of each paragr
9、aph.,Step 2:Skimming(P78,B.Look and think),Title:Pollution fightersSubtitle:Judy is collecting some facts for a class project on pollution.she is interviewing Doctor Ray,a scientist,about trees.Pictures:,True or False,()1.The pollution fighters are probably scientists.()2.A few useful products come
10、from trees.()3.Trees produce harmful gases.()4.Trees can pass information to one another.,F,F,F,T,Pay attention to the sentences beginning with Wh-or How.,Step 3.Scanning,1.Why is Doctor Ray so interested in trees?2.What good are trees?3.What else can trees do?4.A lot of things come from trees.Pleas
11、e give some examples.5.What are natural air conditioners?Why?6.How many students are there in Judys class?,7.How many trees could produce enough oxygen to keep 46 people alive and healthy for a year?8.What can trees do to the air?9.How many trees can do the job of 5 air conditioners running almost a
12、ll day?10.Why are trees in great danger?,Step4:Reading for details,Pay attention to such words:but,when,while,so,1.Look at the questions below the three pictures and find the answers from the interview,2:Whats the relationship between trees and air conditioners?,3:What do the two trees do?,1:Who are
13、 they?,The girl is Judy,the woman is Dr Ray.,Three trees can do the job of 15 air co-nditioners running almost all day.,They join their roots together.,2.Fill in the blanks,Judy:You certainly know a lot about trees,Doctor Ray.Dr Ray:Thank you,Judy,_I dont,really.Scientists are only now _ to understa
14、nd them.For example,did you know that _insects attack a tree,it can _its neighbours?The trees can then protect themselves by_ a_ that makes their leaves taste _.And some trees can join their roots _underground,and pass food and water around.Trees are _with one another,but we dont know_.Judy:Are tree
15、s in_?Dr Ray:In great danger.We cut down and burn _every year but we replace _any of them.We are _our best _against pollution.,but,beginning,warn,chemical,nasty,how,danger,hardly,together,millions,producing,communicating,fighters,destroying,when,3.Do exercise D on P80,D.Find the facts:Correct Judys
16、mistakes,Trees:,1.live much longer than people;,T,2.produce wood,rubber,paper,nuts,beans and fruit.,T,take oxygen from,the air;,F,heat,the air;,F,5.are like air conditioners;,T,cannot,protect themselves against insects;,F,7.can share food and water with one another;,T,8.are in danger,mainly from,ins
17、ects.,F,3.,release oxygen into,4.,cool,6.,can,people/human.,R:We get some useful things from trees,dont we?M:_.Two examples are _.2.R:Is it true that trees do two main things to the air?M:_.They _.3.R:Ive heard that one tree has the power of 15 air conditioners.Is that right?M:_.One tree has the pow
18、er of _.,Yes,cool it and clean it.,five air conditioners.,Yes,No,wood and rubber,4.Do exercise E on P81,4.R:Scientists know a lot about trees,dont they?M:_.They are _.,No,only now beginning to understand them,5.R:Can trees really communicate with one another?M:_.For examples,if insects_.6.R:And can
19、they really protect themselves from insects?M:_.They can produce_.7.R:Can trees help one another?M:_.For example,they can _.8.R:Is it true that,every year,there are fewer and fewer trees in the world?M:_.The reason is that people _.,Yes,attack a tree,it can warn its neighbours,Yes,a chemical that ma
20、kes their leaves taste nasty,Yes,join their roots together underground and pass food and water ground,Yes,cut down millions of trees,but replace hardly any of them.,Read aloud,Pay attention to the pronunciation and intonation of each sentence.,一、Important words:,live活生生的人/物只做定语live animals/teacher a
21、live dead 指人还活着的(状态)表语形容词 Hes alive.living没死或没消失,人/物定语或表语 a living plant2.pollute pollution air/water/food/noise3.else 置于不定代词或疑问代词后,修饰前边词语what else/who else/something else other 置于名词前,修饰名词(what)other things.4.warn 警告 warn sb.of/about sth.warn sb.not to do sth.warn sb.against sth.(提防)warn sb.that-cla
22、use5.replace 代替 with/by sth.,二、Old phrases:,e from=be from2.be known as 作为而出名 be famous for/aswell-known best-known3.pass(on)to Trees can pass information to one another.4.one another 3 each other=25.be interested in(surprise/amaze/excite)I am interested in the interesting book.6.on earth on the ear
23、th7.on the end of8.natural air conditioners 9.join together10.in danger/in trouble,三、New phrases:,1.average ages2.takefrom releasefrom/into 3.as well as 连接两个并列成分,“既,又”Trees cool the air as well as clean it.He knows English as well as German.Tom can sing as well as dance.4.protect sb.by doing sth.通过
24、from the sunshine 免受来自于的伤害 against attacks 免受袭击,municate with与相通/联系/交流communicate sth.to 传送传达6.hardly any of them=almost none of them hardly=almost not 几乎不There is hardly any coal left,they feel very cold.7.provide sb.with sth.provide sth for sb.8.make a mistake/mistakes9.much longer much,a little,a
25、 bit,far,even 程度副词常用来修饰形容词或副词的比较级,表示“得多”,四、Sentences:,What good are trees?good=benefits 好处利益2.Make streets beautiful and less noisy.make 使役动词adj./n./分词(作宾补)Dont make him angry.We make him our headmaster.What he said makes us very pleased.Keep 保持adj./分词/介短(作宾补)Keep your whole class alive and healthy.
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