1、新课标人教版课件系列 高中英语 必修 3-4.111. 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 th
2、e answers to the questions below.v Read paragraph 1, and answer the following questions.v 1.How did water come into being on the earth?v 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 d
3、own.It allowed the earth to dissolve harmful 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 pla
4、nts grow on the waterH. plants begin to grow on dry landI. presence of waterJ. mammals (including humans )appearDBIGEHACFJvRead 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 la
5、ndinsects (on land)amphibian (on land and in water)forests mammals (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.Why do you think that humans are the cleverest animals on the earth?Dinosaurs
6、died out long before human beings developed on the earth.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/t
7、o do sth): not late 及时；不迟She will be back in time to prepare dinner. 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
8、合节拍(sth) be to (do): (something) will definitely happen, or it must happen 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
9、 hand in their plan？表命令 Tell her she is not to be back late!(sb/sth) be different 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。
10、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.Men 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 shellfis
11、h 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, 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, i
12、nto the oceans and seas.allow vt. 允许、许可、容许allow+n./pron./doing allow sb. to dobe allowed to doMy father 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
13、.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 wheth
14、er 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 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 wo
15、rks 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 quickly.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
16、you want to visit the moon?Warming up-Brainstorming (2m)The photo from the moonChinas first astronaut-Yang LiweiWrite down 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 gr
17、avity became very strong.2. The gravity disappeared. His weights changed three times too. Now write them down.The weight changedLeft 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 :
18、 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 concertcheer 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 s
19、ettingwatched 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 canbegin 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 better.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
20、.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 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 outunnoticed
