新课标人教版课件系列 《高中英语》 必修 3- 4.11 1. what’s the main idea of the...

新课标人教版课件系列

《高中英语》

必修 3-4.11

1. What’s 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 below.

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 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 appear

B. a solid ball

C. reptiles appear

D. a cloud of dust

E. shellfish and other fish appear

F. dinosaurs appear

G. small plants grow on the water

H. plants begin to grow on dry land

I. presence of water

J. mammals (including humans )appear

D

B

I

G

E

H

A

C

F

J

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 water

shellfish and all sorts of fish

green plants on landinsects (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 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/to do sth):in time (for sth/to 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 timein time: sooner or later; eventually 迟早；最后I’ll see him in time.总有一天我会遇见他。

Swimming is difficult but you’ll 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 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 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。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 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, 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 earth’s atmosphere, into the oceans and seas.

allow vt. 允许、许可、容许

allow+n./pron./doing

allow sb. to do

be allowed to doMy father doesn’t allow smoking at home. In fact he doesn’t 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 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 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 you want to visit the moon?Warming up----Brainstorming (2m)

The photo from the moon

China’s first astronaut--------Yang Liwei

Write down the three ways in which gravity changed for Li Yanping.

Reading I----scanning& skimming (2m)

The way gravity changed

Left the earth

In space

On 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 changed

Left the earth

In space

On the moon

He 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 up

to the concertcheer her up

2.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 setting

watched the plant grow

3.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 better.

Now that everybody is here

Now that you are a big boy

4.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 .

I’ve been trying to ______________ this new typewriter.

我不十分了解你的论据的意义 .

I don’t quite __________________ your argument.

get the hang of

get the hang of

We watched amazed as fire broke out on the outside of the spaceship as the earth’s 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 out

unnoticed

What would you need?

Speaking task:

spaceship spacesuit

water

Oxygen producer

a space camera

……

Speaking (4m)

If we were going to the moon…

to keep you cool

to stop you flying off into

space

to help you breathe oxygen

to stop your food from floating away

clothes for exercise

clothes for walking on the

moon

to travel on the moon

to give shade

to protect your skin

to take photographs

Discussion-1 (3m)

Fill in the chart. spaceship with water to cool you

carrying oxygen tanks

spacesuit

spacebuggy

spacesuit

a rope to tie you to the spaceship

space food that you can eat easilyspacesuit

sunglasses

space camera

Students work in pairs and give each other a number of “does” and “don’ts”for going to the moon.When finished,you can write some suggestions of yours down and read them out to the rest of the class.

Discussion:

Discussion-2 (3m)

These words and phrases may help you:

Don’ts Does

You mustn‘t…

Please don’t…

Remember never do…

Watch out for…

Please pay attention to...

You’d better do…

Don’t forget to …

Make sure you do…

Writing

Brainstorming for writing (3m)

What will we meet on the moon?

when where what

who problems

Solve (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)

heading

summing up

You are expected to design 3 problems:

Pre-writing (3m)

Main idea:explain the three problems you will have while visiting 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　　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。

What’s the name of the spaceship? Do you 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=People’s Liberation Army

中国人民解放军 Air force 空军

Listening: Ex.1 on page 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 Liwei thinks he was lucky to be

China’s first man in space.

F

F

T

T

T

T

Listening: Ex. 2 on page 62Information on Yang Liwei, the astronaut

The exams he passed

Experience

Physical qualities

Personal qualities

Excellent degree and 10 years’ training

Pilot for the air force of the PLA

Smaller than 170 cm, less than 70 kg

Calm, 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.

Read the passage on page 66 and answer the two questions.

1. Can a black hole be seen? How do you know it’s a black hole?

2. What happened to the spaceship from the beginning to the end?

Reading II----scanning& skimming (2m)

No, it can’t be seen. You can see things disappear into what 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, 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.

Objects are pulled towards it.

Objects go round and round outside the mouth of the “black hole”.

YesYes

YesYes

Reading II---- detail reading(3m)

YesYes

Old 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”.

YesYes

NoNo

YesYes