Unit 4 Astronony the science of the stars 公开课精品课件公开课精品课件

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高中英语必修三Unit4《Astronomy：thescienceofthestars》教学课件

“so…that…如此……以至于
我们做得很好,被邀请与我们学校的所有学生分享我们的想法和经验。 We did__s_o__w__e_l_l_t_h_a_t__w__e___ __w_e__r_e_i_n_v__it_e_d__t_o__s_h__a_r_e__o_u_r_ __id__e_a_s__a_n__d__e_x_p_e__r_ie_n__c_e_____ __w_i_t_h___all the students of
基础自主梳理
Ⅱ.填一填(阅读识其义)
1. fundamental adj. 基本的; 基础的 2. chain n. 链子; 连锁; 锁链 3. multiply vi. & vt. 乘; 增加 4. oxygen n. 氧 5.carbon n. 碳
基础自主梳理
Ⅲ.用一用(语境推意)
1. [2018·全国卷Ⅱ] That prevented the emission (排放) of 51.8 million tons of carbon dioxide. 二氧化碳 2. However, on September 12, 1933, physicist Leo Szilard invented the neutron-induced(中子诱导) nuclear chain reaction. 连锁,一系列
基础自主梳理
背句型(课本这样讲)
记公式(公式这样记)
仿句子(高考这样考)
2. [2017·浙江卷·书面表达]
2.This produced a chain reaction,___w_h__ic_h___m__a_d_e__i_t__ _p_o_s__s_ib__le_______for life to develop. 这引起了连锁反应,为生命的

新课标人教版原创课件：Unit 4 Astronomy_ the science of the stars reading

biochemistry __________ the study of the chemistry of living things geophysicsthe scientific study of the earth’s _________
atmosphere, oceans and climate astronomy the scientific study of objects in space, __________ such as planets, stars, comets and “black holes”
2. Read the text carefully to find out more about how life began on the earth :
Stage 1: The development of the earth (1) After the Big Bang, what happened?
Day 1: God spoke and separated light from darkness creating Day and Night
Day 2: God spoke and separated the
water creating sky and ocean
Day 3: God spoke and created dry
land
Day 4: God spoke and created the sun, moon and stars Day 5: God spoke and created living creatures in the air and sea Day 6: God spoke and created the land animals and man Day 7: God rested and blessed this day calling it Holy

高中英语 Unit 4 Astronomy：the science of the stars课件

答案：①by turns ②by turns/in turn ③in their turn ④take turns to
8．(教材原句 P27)How life began on earth is one of the biggest puzzles that scientists found hard to solve.
7．(教材原句 P26)Thus they have，in their turn， become the most important animals on the planet.
于是，他们接着成为这个行星上最重要的动物。
归纳拓展 in turn 依次；轮流；相应地；转而；反过来 by turns 轮流；交替 take turns to do sth 轮流做某事 It's one's turn to do sth 轮到某人做某事
【考点警示】 exist 没有被动语态和进行时。
即学即练
用上述词语填空。 ①One cannot ________ without air. ②He thought that if he couldn't see something, it didn't ________ . ③You may be stuck with a miserable ________ for the rest of your life. 答案：①exist ②exist ③existence
④I was very interested in the lecture，________many of the students.
答案：①dislikes ②unlike ③disliked ④unlike
4．(教材原句 P26)What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.

新课标人教版原创课件：Unit 4 Astronomy_ the science of the stars warming up and listening

sical qualities Personal qualities
Fill in the blanks in the passage below dreamed of it when I was Well, I _________ young _______, but I never thought my wish would come ________ true _______ . gradually . It all happened very _________ opportunityI’d If there was an ________ love __________ to go to the moon one day.
What did he do ?
He watched all his instruments and stayed calm.
Information on Yang Liwei, the astronaut
Education
He got his degree. He trained for ten years to fly airplanes and then to fly a spaceship. Smaller than 170 cm; less than 70 kg. Calm, hard-working.
astronomer
experts of astronomy
• Do you know any famous astronomers with great contributions?

Aristotle (384-322 BC)

Famous Greek philosopher, educator as well as scientist Metaphysics（形而上学/ 宇宙哲学）： bodies in space are material; the earth is the center of the universe

必修3 Unit4 Astronomy the science of the stars[全套课件]

Explode…with fire & rock
(produce H2O, CO2,O2, N2, other gases)
Cool down
atmosphere
Life began Life developed
water appeared
dissolve harmful gases into …
The development of life
caused by humans to the earth?
How to protect the earth and
make it a better place to live on?
Design an activity on Earth Day
What the activity is about
A visit to the moon
The change of gravity
Leave the earth
Very strong Very heavy
In space
Disappeared
Astronomy
Astronomy is the scientific study of the universe and the heaven bodies (such as the sun, the moon, and stars), gas, and dust within it.
astronomer
Hawking 1942“Black holes” “eat” objects but also “spit” them out.
It was about It was about things found in the universe. the universe called “black holes”.

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B．仿句自测 1．make it＋adj./n.＋to do sth. 仿写：他早上六点起床成了惯例。 _________________________________________________ 2．倍数＋as...as...句型仿写：我的收入是他的两倍。 _________________________________________________
答案：A
2．[教材原句]．..have a chance to make a trip into space
with my friend...(U4P30) [真题呈现](2010·辽宁，22)There are over 58,000 rocky
objects in________space, about 900 of which could fall down
存；生活方式
5．________ adj. 温和的；文雅的→________ adv.
6．________ n. 物理学家→________ n. 内科医生 7．________ v. 减少；减轻→________ adj. (little的比较级)少量的；adv. 较少 8．________ vt. 用尽；耗尽；使筋疲力尽→________ adj. 筋疲力尽的 9．________ n. 谜；难题；vt. & vi. (使)迷惑；(使)为难 →________ adj. 困惑的；迷惑不解的→________ adj. 令人困惑的；令人费解的
of years to come will depend on________this problem can be
solved. A．whether; if
B．if; whether
C．whether; whether D．if; if
答案：C
3．Walking does need a bit of practice________gravity
答案：1.in；at；a 2.to；of 3.in；in 4.prevent； stop/keep 5．up；cheers 6.that 7.of 8.out；in
Ⅲ.句型总结 A．经典原句 1．_______________ (它会变成什么样) was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. 2．This produced a chain reaction, which ___________ (使得生命得以发展)． 3．But when I tried to step forward, I found I was carried __________________ (两倍远) on the earth and fell over.
必修三
Unit 4 Astronomy: the science of the stars
话题诵读考题对接
3
基础回顾
4
精讲点拨
话题诵读
早读一刻情感体验
Odds(机率) of Life on Nearby Planet“100 percent” Astronomer says
An Earth-size planet has been spotted orbiting a nearby star at a distance that would makes
4．________... from... 阻止……做……→(同义短语)________．..from...
5．cheer ________ 感到高兴；感到振奋→________ 干杯
6．now ________ 既然；由于(引导原因状语从句)(＝ since)
7．get the hang ________ 熟悉；掌握；理解 8．break ________ 突发；爆发→break ________ 打断 (谈话)；插嘴
答案：A.1.What it was to become 2.made it possible for life to develop 3.twice as far as
B．1.He made it a rule to get up at 6 in the morning. 2．My income is twice as much as his.
Ⅳ. 教材设题
1．What is even more important is________as the earth
cooled down, water began to appear on its surface.
A．/
B．that
C．which
D．how
答案：B
2．So________life will continue on the earth for millions
it not too hot and not too cold—comfortable enough for life to exist, researchers announced September 29.
If confirmed, the exoplanet, named Gliese 581g, would be the first Earth-like world found residing in a star's habitable zone—a region where a planet's temperature could sustain liquid water on its surface. And the planet's discoverers are optimistic about the prospects for finding life there.
答案：D
[真题呈现3]The top leaders of the two countries are
holding talks in a friendly________.
A．atmosphere
B．state
C．situation
D．phenomenon
[考题巧解] 解析：考查名词词义辨析。atmosphere“气氛，氛围”；state“状态”；situation“形势”；phenomenon“现象”。句意：两国高层领导人在友好的氛围(atmosphere)中进行谈判。
考题对接
真题链接体会考点
1．[教材原句]They were in_time to produce carbon, nitrogen, water vapour and other gases, which were_to make the earth's atmosphere.(U4P25－26)
Ⅱ.短语突破 1．________ time 及时；终于；迟早→________ times 有时→at ________ time 一次；每次 2．give birth ________ 产生；分娩→be delivered ________ a baby 分娩；生孩子 3．________ one's turn 轮到某人；接着→________ turn 轮流，依次；转过来，反而
A. lives
B. would live
C. having lived
D. were to live
[考题巧解] 解析：本题考查虚拟语气。句意：格蕾丝不想搬到纽约去，因为她认为如果她住在那里她就不能经常见到她的父母了。根据句意可知，because后面的分句表示将来的事情，且根据she wouldn't be able to see her parents very often可知空白处要用虚拟语气，表示将来的动作，if从句可用should do，were to do或did，故选D项。
onto________earth. A．the; the
B．/; the
C．the; /
D．a; the
[考题巧解] 解析：句意：太空中有58000多个固体物体，其中大约 900多个可能掉到地球上。本题考查冠词。in space为固定搭配，意为“在太空中”；earth为独一无二的物体，其前要加定冠词。
4．harmful adj. 有害的→be harmful ________... 对…… 有害
5．________ n. & vt. 拉(力)；拖；牵引力→push n. & v. 推，推动→________ n. & v. 按动；压力→________ n. & v. 拖(动)；拉(动)
B．构词记忆
has changed. A．though
B．so that
C．while
D．now that
答案：D
精讲点拨
条分缕析整合讲练
1．exist vi. 生存；生存 ①(2011·山东阅读A)There_existed a close relationship between families and their milkmen. 过去，家庭成员和送奶工之间的关系很密切。 ②They are paid hardly enough to exist_on. 他们收入微薄，几乎无法维持生活。
答案：A
[真题呈现2](2012·安徽，31)Grace doesn't want to move
to New York because she thinks if she ________ there, she
wouldn't be able to see her parents very often.
[真题呈现1](2012·江苏，29)—Thank God you're safe!