河北省石家庄市第一中学高中英语 unit4 Astronomy Reading1教学课件2 新人教版必修3.ppt

1、1.Whats the main idea of the text?How life began on the earth.2.How many parts can the text be divided into?Two parts:Part 1(para 1)Part 2(para2.3.4)Water made it possible for life begin to develop.The development of living things.Read the passage quickly and find out the answers to the questions be

2、low.Read paragraph 1,and answer the following questions.1.How did water come into being on the earth?2.What is the significance of the presence of water on the earth?The explosion of the earth produced water vapour,which turned into water when the earth cooled down.It allowed the earth to dissolve h

3、armful gases into oceans and seas.Reading-II-skimming(3m)Put the order of development of life into a time line.A.insects and amphibians appearB.a solid ballC.reptiles appear D.a cloud of dustE.shellfish and other fish appearF.dinosaurs appear G.small plants grow on the waterH.plants begin to grow on

4、 dry landI.presence of waterJ.mammals(including humans)appearDBIGEHACFJ Read the second and third paragraphs and put the development of life in the chart.1_2_4._5._3_6._7._8._9._small plants in watershellfish and all sorts of fishgreen plants on landinsects(on land)amphibian(on land and in water)for

5、estsmammals(on land)reptiles(on land)dinosaurs(on land)Reading-II-detail reading(3m)1.Why is it wrong in films and stories to show dinosaurs and people together?2.2.Why do you think that humans are the cleverest animals on the earth?Dinosaurs died out long before human beings developed on the earth.

6、Because they have larger brains than any other creatures on the earth so far.After reading the passage,answer the following questions.1.It exploded loudly with fire and rock,which were in time to produce the water vapour,.in time(for sth/to do sth):not late 及时；不迟She will be back in time to prepare d

7、inner.她来得及回来准备晚饭。in time:sooner or later;eventually 迟早；最后Ill see him in time.总有一天我会遇见他。Swimming is difficult but youll learn it in time.Do you think we can get there in time for the train?in/out of time:in/not in the correct time 合/不合节拍(sth)be to(do):(something)will definitely happen,or it must happ

8、en 不可避免要发生或必须发生。e.g.They said goodbye,little knowing that they were never to meet again.She is to be honoured for this great work.The audience clapped in time to the music.观众合着音乐的节拍拍手。be to(do):表示按计划、安排要发生的动作When are they to hand in their plan？表命令 Tell her she is not to be back late!(sb/sth)be diffe

9、rent from:not like someone or something else in one or more ways 与不同。2.Nobody knew that it was going to be different from other planets going round the sun.City life is quite different form country life.都市生活与乡村生活是非常不同的。going round the sun为现在分词短语，做定语，表示一般的动作。例如：Men breaking the law will be punished.M

10、en who break the law will be punished.现在分词短语作定语,也可表示进行的动作.例如Can you see the girl dancing with your boyfriend?Can you see the girl who is dancing with her boyfriend?3.This encouraged the development of early shellfish and all sorts of fish.这为早期贝类及其他各种鱼类的发育进一步创造了条件。名词后缀-ment加在动词之后表示：1.行 为，例 如：argument

11、,betterment,development,treatment。2.结 果，例 如：arrangement,settlement,statement.3.工具，例如：instrument,pavement.4.It allowed the earth do dissolve harmful gases,which had become part of the earths atmosphere,into the oceans and seas.allow vt.允许、许可、容许allow+n./pron./doing allow sb.to dobe allowed to doMy fat

12、her doesnt allow smoking at home.In fact he doesnt allow us to smoke anywhere at any time.Are we allowed to use the computer?5.This encouraged the development of early shellfish and all sorts of fish.encourage 鼓舞；促进；怂恿。后接名词、代词，也可接不定式作宾语补足语。如：High prices for corn and wheat will encourage farming.玉米和小

13、麦的高价将促进农业的发展。My success encouraged me to continue.我的成功鼓励我继续干下去。He encouraged me to learn dancing.他鼓励我去学跳舞。6.Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.for millions of years to come中不定式to come作定语，与前面的名词之间有逻辑上的主谓关系：She is the

14、 last person to do such a thing.她是最不像会做这种事的人。(sth)depend on(sth else):something might only happen or be true if the circumstances are right for it 取决于。Our success depends on whether everyone works hard or not.我们的成败取决于是否每个人都努力工作。7.spread的用法（1）vi.（消息等）传开，流传。如：The news spread through the school very qu

15、ickly.The fire spread from the factory to the house nearby.（2）vt.“使伸展，延伸，张开”，常与out连用。I spread a new cloth on the table.我在餐桌上铺上一条新桌布。He spread out his arms to welcome us.他张开手臂欢迎我们。Do you want to visit the moon?Warming up-Brainstorming(2m)The photo from the moonChinas first astronaut-Yang LiweiWrite d

16、own the three ways in which gravity changed for Li Yanping.Reading I-scanning&skimming(2m)The way gravity changedLeft the earthIn spaceOn the moon 3.It became very light.1.The gravity became very strong.2.The gravity disappeared.His weights changed three times too.Now write them down.The weight chan

17、gedLeft the earthIn spaceOn the moonHe became very heavy.He had no weight and could float around like a feather.He was about one-sixth of his weight on the earth.1.cheer up:欢呼，喝彩，感到高兴，使高兴。当看到球队的到来，人群欢呼起来。_ when they saw the team arrive.他带她去听音乐会来使她高兴。He took her _ to _.The crowd cheered upto the conc

18、ertcheer her up2.watch do/doing:观看，注视我们看着太阳正在树后面落下。We _ behind the trees.每一天当他们看到植物生长，他们的心里都充满了希望。Every day as they _,their hearts filled with hope.watched the sun settingwatched the plant grow3.now that:既然，由于既然每个人都到了，我们就可以开始会议。_,we can begin the meeting.由于你是一个大男孩,你就必须行为表现得更好._,you must behave bette

19、r.Now that everybody is hereNow that you are a big boy4.get the hang of sth.查看某物运作了解.的意义我一直想知道这部新的打字机的用法.Ive been trying to _ this new typewriter.我不十分了解你的论据的意义.I dont quite _ your argument.get the hang ofget the hang ofWe watched amazed as fire broke out on the outside of the spaceship as the earths

20、 gravity increased.5.amazed 是过去分词，此处做状语用他进来的时候没有人注意到.He came in _.6.break out (战争,争吵,疾病等)爆发在深夜,突然有人吵架._ suddenly at midnight.A quarrel broke outunnoticedWhat would you need?Speaking task:spaceshipspacesuitwaterOxygen producera space cameraSpeaking(4m)If we were going to the moonto keep you coolto st

21、op you flying off into spaceto help you breathe oxygento stop your food from floating awayclothes for exerciseclothes for walking on the moonto travel on the moonto give shadeto protect your skinto take photographsDiscussion-1(3m)Fill in the chart.spaceship with water to cool youcarrying oxygen tank

22、sspacesuitspacebuggyspacesuita rope to tie you to the spaceshipspace food that you can eat easilyspacesuitsunglassesspace cameraStudents work in pairs and give each other a number of“does”and“donts”for going to the moon.When finished,you can write some suggestions of yours down and read them out to

23、the rest of the class.Discussion:Discussion-2(3m)These words and phrases may help you:DontsDoes You mustntPlease dontRemember never doWatch out forPlease pay attention to.Youd better doDont forget to Make sure you doWritingBrainstorming for writing(3m)What will we meet on the moon?when wherewhatwho

24、problemsSolve(how)writing an outline(3m)How to write an outline?Outline(main idea)The first paragraph(introduction)Body(your own ideas on the item)Conclusion(summing up)headingsumming upYou are expected to design 3 problems:Pre-writing(3m)Main idea:explain the three problems you will have while visi

25、ting the moon.Paragraph 1:problem 1 and how you will solve it.Paragraph 2:problem 2 and how you will solve it.Paragraph 3:problem 3 and how you will solve it.Summing up:how successful the holiday will be if you follow this advice.Do you know who he is?P62 listening 杨利伟小档案（来源：解放军报）民族：汉出生年月：1965年6月21日

26、 籍贯：辽宁省绥中县 政治面貌：中共党员 身高：168厘米 体重：65公斤 家庭成员：妻子张玉梅，儿子杨宁康 简历：1983年6月入伍，1987年毕业于中国人民解放军空军第八飞行学院，历任空军某师飞行员、中队长，曾飞过强击机、歼击机等机型，安全飞行1350小时，被评为一级飞行员，现为中国人民解放军航天员大队三级航天员；1996年，参加航天员初选，入围；1998年1月，从800多名入围者中脱颖而出，成为中国首批航天员之一；在“神舟”五号载人飞船发射准备阶段，经专家组无记名投票，入选“3人首飞梯队”，并被确定为首席人选。Whats the name of the spaceship?Do you

27、know what education and experience you need to become an astronaut?What would worry you about space travel?What problem do you think you would have in space?Pre-listening-prediction(1m)New words in the listening Gobi Desert 戈壁沙漠 PLA=Peoples Liberation Army 中国人民解放军 Air force 空军Listening:Ex.1 on page

28、62 1.Yang Liwei became an astronaut by chance.2.Nobody over 170 cm can be an astronaut.3.Yang Liwei trained for 10 years to became a pilot.4.If Yang Liwei had problems in space,there were ways to save him.5.China is the third country to send people into space just like Russia and the USA.6.Yang Liwe

29、i thinks he was lucky to be Chinas first man in space.FFTTTTListening:Ex.2 on page 62Information on Yang Liwei,the astronautThe exams he passedExperiencePhysical qualitiesPersonal qualitiesExcellent degree and 10 years trainingPilot for the air force of the PLASmaller than 170 cm,less than 70 kgCalm

30、,mature,hard-working What have they built into the spaceship to help Yang Liwei if he has difficulties?There are escape seats if Yang Liwei needs them and special doors connecting to rescue rockets if necessary.Black holes Stephen Hawking thinks that black holes can both eat and spit objects out.Wha

31、t is a black hole?If you put enough matter in one small place,it creates a black hole,a gravitational field(3)so intense that nothing,not even light,can escape from it.A black hole is an extremely weird object.Its intense gravitational field changes space and time in fundamental ways.Each black hole

32、 has only three measurable properties:mass(质量),electrical charge(电荷),and rotational momentum(旋转动量).Most astronomers now believe that there is a huge black hole in the inner core of our galaxy银河,billions of times heavier than the sun.It spins(旋转)in the center of a rotating whirlpool(旋转的漩涡)of hot gas

33、and dust,slowly sucking it in.Read the passage on page 66 and answer the two questions.1.Can a black hole be seen?How do you know its a black hole?2.What happened to the spaceship from the beginning to the end?Reading II-scanning&skimming(2m)No,it cant be seen.You can see things disappear into what

34、appears to be empty space.At first the lights on the spaceship went out and the computer stopped working.Then the spaceship jumped and began to move around the edge of the outside of the hole.As the spaceship moved around the hole,it began to go faster and faster.But then the spaceship jumped again,

35、and it moved sideways from the black hole.It began to increase its speed until it seemed to be going as fast as light.As last the spaceship slowed down and the computer started working again.Old ideas about“black holes”Was this what we found?New ideas about“black holes”Black holes cannot be seen.Obj

36、ects are pulled towards it.Objects go round and round outside the mouth of the“black hole”.YesYesReading II-detail reading(3m)YesOld ideas about“black holes”Was this what we found?New ideas about“black holes”Objects as large as suns can disappear into the“black hole”.All objects must go into the“black hole”when they are caught by its gravity.Time slows down when you are close to a“black hole”.YesNoYes