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英语必修三第四单元课件 PPT

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人教版高中英语必修三第四单元课件PPT

人教版高中英语必修三第四单元课件PPT


The disappearance of dinosaurs made the possible the rise of mammals on the earth.
8. Why are mammals different from all life forms in the past?
They gave birth to young baby animals and produced milk to feed them.
11.Clever animals with hands and feet appeared.( 12)
12.Mammals appeared.( )
discussing
What
should we do for our earth?
You can use the following words or phrases to help you:
C.A widely accepted theory about the formation of the universe.
Para. 4
D.The arrival of humans and their impact on the earth. E.The development of plants and animals on the earth.

Pangu separates the sky from the earth
Nvwa made humans
Read the passage quickly and answer the questions
1. When did the “Big Bang” happen? 2. What form was the earth after the “Big Bang”? 3. What made up the earth’s atmosphere？ 4. How did water come into being on the earth?
高一英语必修三第四单元课件ppt

高一英语必修三第四单元课件ppt

天王星是太阳系中离太阳第七远行星，颜色为灰 蓝色，是一颗巨型气体行星(Gas Giant)。以直径计 算，天王星是太阳系第三大行星；天王星的命名，是 取自希腊神话的天神乌拉诺斯——Uranus。乌拉诺斯 是古希腊神话中的宇宙之神，是最早的至高无上的神。 他是该亚的儿子兼配偶，是Cronus（农神土星）、独 眼巨人和泰坦（奥林匹斯山神的前辈）的父亲。
astronomy
physics mathematics medicine
biology chemistry
从使用情况来看，闭胸式的使用比较 广泛。 敞开式 盾构之 中有挤 压式盾 构、全 部敞开 式盾构 ，但在 近些年 的城市 地下工 程施工 中已很 少使用 ，在此 不再说 明。
geophysics
The theory about black holes （黑洞理论）
从使用情况来看，闭胸式的使用比较 广泛。 敞开式 盾构之 中有挤 压式盾 构、全 部敞开 式盾构 ，但在 近些年 的城市 地下工 程施工 中已很 少使用 ，在此 不再说 明。
Solar system
从使用情况来看，闭胸式的使用比较 广泛。 敞开式 盾构之 中有挤 压式盾 构、全 部敞开 式盾构 ，但在 近些年 的城市 地下工 程施工 中已很 少使用 ，在此 不再说 明。
geography biology history
从使用情况来看，闭胸式的使用比较 广泛。 敞开式 盾构之 中有挤 压式盾 构、全 部敞开 式盾构 ，但在 近些年 的城市 地下工 程施工 中已很 少使用 ，在此 不再说 明。
Science subjects
physics chemistry biology geology mathematics
Medicine Biochemistry Geophysics Astronomy
高中英语必修三第四单元 PPT课件 图文

高中英语必修三第四单元 PPT课件 图文


Careful reading
Read the passage carefully and analyse its structure.
Para 1:Aewaridtehly, aatcmcepotsepdhthereoeraynabdowutattheer
formation of the universe. Para 2: The formation of the earth.
Let review the evolution of life on the earth.
After the “Big Bang”, the earth was full of water.
Original cells appeared in the ocean.
The cells in the water began to separate. Small plants came into being.
The earth is becoming hotter and hotter!
What can we do to take care of the
earth?
solar energy
purify air
plant trees
save water
recycle rubbish
prevent desertification
Discussion
We are making the world better.
We are making the world worse.
Because they are putting too much carbon dioxide into the atmosphere.
人教英语必修三-第四单元PPT课件

人教英语必修三-第四单元PPT课件


any possible harm.
.
9
选择： 1). Let nothing _D___ you doing your duty. A. keep B. have C. protect D. prevent 2). –What _C__ you to come to the party?
-An unexpected accident ___ me going. A. prevented; forbade B. protected; forbade C. forbade; prevented D. stopped; kept 3). He put on his sunglasses to _D__ his eyes from the strong sunlight. A. prevent B. stop C. . keep D. protect 10
17
填空：
1) The driver _p_u_l_le_d__u_p__ at the traffic lights.
2) The train _p_u_l_le_d__in___ right on time.
3) The cinema she used to visit had been _p_u_l_le_d__d_o_w_n__.
1. in time (for sth /to do sth) 1) not late 及时 eg. She will be back in time for dinner /
to have dinner. 2) after a long period of time 终于，迟早 eg. Your hard work will pay off in time.
翻译：His present boss who presented
高中英语必修三第四单元精ppt课件

高中英语必修三第四单元精ppt课件

.
Fast reading
Read the passage quickly and find the main idea. A brief introduction on how the universe developed and how life began on the earth.
Careful reading
development of life? 3. How did water come into being on the earth? 4. Which kind of life-being first appeared on the earth,
plants or animals? Why? 5. Why were mammals different from all life forms in the
Unit 4
Astronomy: the science of the stars
.
How much do you know about the universe?
What are the names of the eight planets that circle our sun? What is their order from the sun?
Free Talk
1. How old is the universe? Several billion years ago.
2. How old is the earth? Between 4.5 and 3.8 billion years ago.
3. Which were the first creature or plants on earth?
Put the order of development of life.
人教版高中英语必修三第四单元课件PPT

人教版高中英语必修三第四单元课件PPT


金星 Venus 地球 水星 Mercury Earth
火星 Mars
天王星 Uranus 海王星 Neptune
木星 Jupiter
土星 Saturn
In this unit, we’ll learn something more scientific

1.What’s the title of the text? how life began on the earth 2. From the title, we can predict that the text may tell us the origin of life on the earth. Do you know some stories about it?
8. Why are mammals different from all life forms the past?
Phrases and Useful Expressions
circle around 绕…转 2. according to… 根据 3. a widely accepted theory 熟知的理论 4. in all directions 向着四面八方 5. in time 及时；终于 6. cool down 冷却 7. be fundamental to… 对…关键 8. a chain action 连锁反应 9. …make it possible for…to do… 使…可能 10. give birth to… 生育 11. prevent… from 阻止…做… 12. millions of years to come 未来的几百万年
The disappearance of dinosaurs made the possible the rise of mammals on the earth.
人教高中英语必修3Unit4reading(共35张PPT)

人教高中英语必修3Unit4reading(共35张PPT)

the formation of the universe
E. The arrival of humans and their impact on the earth
The Big Bang
Stage 1: The development of the earth (1) After the Big Bang, what happened?
2. Why did the plants grow before the animals came? Because plants provide oxygen for animals to breathe.
3. Why is it wrong in films and stories to show dinosaurs and people together? Because dinosaurs died out long before human beings developed on the earth.
(4) What life developed after mammals? small clever animals
Task 2：Read Para 2 and fill in the blanks.
For several billion years after the __Bi_g B_a_ng___, the earth was still just _a_cl_ou_d_of_d_us_t ______. Between _4_.5_ and _3_.8_bil_lio_n___ years ago when the dust settled into_a_s_ol_id_glo_b_e ______. It exploded loudly with _f_ire__and __ro_ck_. They produced some gases, which were to make the earth’s _at_m_o_sp_he_r_e ___. As the earth cooled down, w_a_te_r____ began to appear on its surface.
人教高中英语必修3Unit4reading(共20张PPT)

人教高中英语必修3Unit4reading(共20张PPT)

Time order (structure) while after places
What should we write in detail? activities
feelings
Before going Time order While visiting
After visiting
where when who what
there are other phrases
break up
break through
Break away from
break in
Summary
Supposing you were the Chinese astronaut walking on the moon.
What will you say to the world? (at least 2 sentences)
2.twice as ….as….. 3. now that=since eg.Now that you have finished the work,
you should study hard.
4.Break out
eg.The fire must have broken out during the night.
how
出发
参观农作物
野餐
参
观
期 唱歌，跳舞，下棋
返回
间
Composition
Today we visited the Hongxing Farm. In the early morning, we started from our school.
When arriving, we were warmly welcomed by the farmers there. The header of the farm led us to the fields where we saw all kinds of crops growing well and we all felt very excited. In the middle of the day, we had an picnic lunch there and we all enjoyed it very much. After that, we sang and danced to our hearts’ content. Some of us even played chess and told interesting stories.
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exactly 精确地，准确地，确切地 exact adj. eg. Your answer is exactly right.
happen take place Great changes have taken place in my hometown
in the last thirty years.
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5. This produced a chain reaction, which _________________________________.
这就产生了一系列的反应，使得生命的发展成 为可能。
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答案： 1.so violent that 2.were in time to produce; were to make 3.It was not immediately obvious that 4.What many scientists believe is that 5.Which made it possible for life to develop.
②It's unlike him to be late; he's usually on time. 他不是会迟到的那种人；他通常很准时。
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易错点拨 自我完善·误区备考 1. unlike/dislike/alike/likely (1)unlike prep.不同；不像 (2)dislike vt. 不喜欢 (3)alike adj. 相似的，同样的 (4)likely adj. 很可能发生的，有希望的
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according to 根据，按照，据......所说
翻译：Everything went accoring to plan.
theory
a formal set of ideas that explain why sth. happens n. 学说，理论
throw---threw---thrown throw away 扔掉
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Ⅲ.完成句子 1．地球变得激烈动荡，不知道这个固体形 状是否会继续存在下去。
The earth became________________ it was not clear whether the shape would last or not. (so... that...如此……以至于……)
developed （社会，国家）发达的 deloping 发展中的
造句：中国是一个发展中的国家
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presence n．出席；到场；存在→present adj. & n. & v．在场的；目前，现在；出席；颁发， 授予
at present 现在，目前
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chain n．链子，连锁；锁链 ①This produced a chain reaction，which made it
possible for life to develop. 这就产生了一个连锁反应，使生命的发展成为可能。 ②He is in a poor taste with a thick gold chain round his
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atmosphere (n.) (1)(围绕地球的)大气；大气层；大气圈 (2)[C](房间、封闭空间或某处的)空气 These plants love warm, humid atmosphere. 这些植物喜欢温暖潮湿的空气。 (3)[C & U] 气氛； 氛围 The atmosphere changed as soon as she walked in. 她一进来气氛就变了。
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direction 方向 matter 物质
事情，问题 拓展：
as a matter of fact in fact actually
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combine ...with ...把......与......结合起来
翻译：They live happily because they combine their work with pleasure.
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●重点单词 1．astronomy n．天文学→astronomer n．天文学家 2．system n．系统；体系；制度 3．theory n．学说；理论 4. religion(n.)宗教，宗教信仰→religious(adj.)宗教上的 5．globe n．球体；地球仪；地球→global adj.全球性的；全 世界的 6. violent adj.猛烈的；激烈的；强暴的→violence n．暴力 →violently adv.猛烈地
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It is not clear whether he will come or not.
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in time
来得及；及时 ①If you catch the early bus, you'll get there in time. 如果你赶上早班车，你会及时到达那儿的。 ②Will we be in time for the six o'clock train? 我们来得及赶上六点钟的那趟火车吗？
造句：他是如此的有趣以至于每个人都很喜欢他。
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He is so funny that everyone likes him very much. it is not clear whether ...or not ......还不确定, 还 不清楚
句子仿写： 他要不要来还不确定
Unit 4 Astronomy: the science of the stars
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第一课时 Warming up & Reading
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Each religion and culture has its own ideas about how life began on earth. What do you know about them?
neck. 他戴着一条粗粗的金链子，显得俗气。
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●重点短ding to
据......所说；根据，按照
3. combine ...with...
把......与......结合起来
4. settle into
稳定下来
5. allow(permit) sb. to do sth. 允许某人做某事
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Homework
Recite the words Read the passage and analyze the four sentences
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Thank you for listening!
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3．水对于生命的发展起关键作用，这一点在当 时并不明显。
________________________________water was to be fundamental to the development of life. (It is obvious that...……很明显)
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2．喷出的烈火与岩石及时产生了碳、氮气、 水蒸气和其他气体，从而形成了地球的大气层。
They____________________________ carbon,
nitrogen, water vapour and other gases, which
____________ the earth's atmosphere. (be in time to do sth.及时做某事；be to do sth.常用来表示 不可避免将要发生的事情)
It is likely/unlikely that...有/没有可能......
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fundamental 基础的，基本的
Hard work is fundamental to success. 勤奋工作是成功的基础。 development n. 发展 develop v.
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solid 坚固的，结实的
globe n．球体；地球仪；地球→global adj.全球性 的；全世界的
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violent adj.猛烈的；激烈的；强暴的→violence n．暴力→violently adv.猛烈地
so ...that... 如此......以至于......
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7. fundamental(adj.)基本的；基础的 8. atmosphere n．大气层；气氛 9. unlike prep.不同；不像→dislike vt.不喜欢 10.presence n．出席；到场；存在→present adj. & n. & v．在场的；目前，现在；出席；颁发，授予 11. harmful adj.有害的；伤害的→harm n．危害，害处 →harmless adj.无害的 12．chain(n.)链子；连锁；锁链
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appear 出现v. appearance n. disappear 消失v. disappearance n