astronomy：the science of the stars. reading
whether the shape would last or not.
地球（开始）变得激烈动荡，不知道这个形状是否会继续存在下去。
真正的主语是主语从句whether the shape would last or not。 为了避免主语显 得过长,可以用it作为句子的主语,把主语从句移到句子的末尾。 eg. It is well-known that we are good at English! 众所周知，我们擅长英语。
2. Why was the earth different from other planets?
A. It produced a lot of heat. C. Water disappeared. B. The water remained. D. It was the oldest planet.
plants 5. (life began): Arrival of small _______ on the surface of the water.
Intensive Reading
I. Read the para.2-4 and finish the timeline. Development of Life (2)
appeared water __________.
II. Read the first three paragraphs again and complete the following questions.
1. What forms the earth's atmosphere?
A. Carbon dioxide, oxygen. B. Carbon dioxide, oxygen, poisonous gas. C. Water vapour, carbon dioxide, oxygen, nitrogen. D. Water vapour, carbon dioxide, oxygen, nitrogen and other gases.
settled into a solid globe.
它（地球）将成为什么样子一直是个谜，直到45-38亿年以前这些尘埃凝 聚成一个固体球体。
1) be to do sth. 表示按计划或安 排要做的事或者命运（即命中 注定要发生的事) 。eg. When are you to leave for home? 你什么时候回家？
according to 1. ____________ a widely accepted theory 根据一种普遍为人们所接受的理论 in 2. ______ all directions 四面八方 3. ______time 及时；终于 in to 4. be fundamental_______ 对...起关键作用 chain 5. produce a ______ reaction 产生链锁反应 to 6. make it possible ____ do sth. 使做某事成为可能 with 7. fill A______ B 用B填充A sorts 8. all ______/kinds of fish 各种各样的鱼 lay 9. ______ eggs 下蛋 mystery 10. remain a __________ 仍然是个谜 11. give birth ______ 产生;分娩 to spread 12. ______ all over the world 散布在地球的各个地方 in 13.______ one's turn 轮到某人;接着 prevent stop…(from)…; keep…from… 14.__________...(from)... 阻止;制止
Save the earth!
Discussion What can we do to protect our earth?
Start with doing minor things around us.
Language points I. Useful phrases from the text
3. (explode): water vapour and some other gases were produced and made the atmosphere earth's ____________. water 4. (cool down): _____________ appeared on the surface.
II. Choose the best answer according to the last paragraph (para. 5).
1. The author infers us that if we want the life to continue on the earth, what should we do?
Big Bang Theory
Reference: Big Bang—the universe—the solar system—the sun—the earth
All started with the Big Bang
Is there life on the moon or other planets?
Unit 4 Astronomy: the science of the stars
Reading
How Life Began on the Earth
曹州一中 章漫莉
How did the universe begin?
Big Bang Theory
-----All started with the Big Bang!
As far as we know, the earth is the only planet that supports life.
Did human being exist on the earth when the earth came into being?
Who are our ancestors?
3. Why was water very important for the beginning of life?
A. Because plants and animals had to drink. B. Because water produced air for life to breathe. C. Because the continued presence of water produced a chain reaction, which made it possible for life to develop. D. Because water is fundamental to the development of life.
reptiles
forests
amphibians land insects
dinosaurs
mammals clever animals
humans
What problem are humans causing?
putting carbon dioxide into the atmosphere
Q: What life developed after mammals?
humans came into being
The sequence of development of life on the earth
water water plants
shellfish fish
land plants
2. From the last paragraph we can infer that the author is a little_______.
A. happy B. careless C. worried D. excited
greenhouse effect and global warming
the earth may become too hot
greenhouse effect and global warming
heat from the sun is trapped
temperature rises
ice in the North Pole melts
The earth is in danger!
How did water come into being on the earth?
Key words for reference: produced _________ exploded The earth _________ water vapour
The earth _________ cooled down
2) not until直到……才;直到……之前 (……还不) eg. Don‘t talk until the class is cover. 等 到下课再讲话。
Language points
II. Important sentences from the text.
2. The earth became so violent that it was not clear
6. (multiply): The oceans and seas were oxygen filled with _______and the development of shellfish and other fish were encouraged. 7. (next): Green plants began to grow on land _________. 8. (followed in time): Land animals such as amphibians insects and__________. 9. (plants grew into forests): Reptiles appeared. 10. (after that ): Huge animals, called dinosaurs __________ developed. 11. (dinosaurs disappeared): It made the rise of mammals on the earth possible. ________
2022届高考英语一轮复习必修3Unit4 学案含解析新人教版
Unit 4 Astronomy: the science of the stars话题：职业选择【场景背诵】－－体会黑体表达并背诵全文When I graduated from high school, I wanted to major in comparative literature. But, once I found out my friends were going into “real” majors, like marketing, nursing, and engineering, I figured I needed to do the same to ensure a good career. So I changed my mind and chose Business Management as my major. I forced myself to believe that I would enjoy it and succeed in the future, but eventually I exhausted myself understanding the economy and trying new marketing techniques. Coming out of this experience, I realize it is OK to be different from others and to study things like classics, art history and other majors offered in the College of Humanities (人文学科)! (2019·高考天津3月卷· D)【话题运用】－－根据提示进行写作1．拥有更广阔的视角，我们将会更加自由，更加思想开明，并且有更少的桎梏限制我们的发展。
最新高考英语一轮复习-Unit-4-《Astronomy-the-science-of-the-stars》重点梳理现题解析
必修3Unit 4 Astronomy: the science of the stars要点梳理高效梳理·知识备考●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→theoretical adj.理论上的4．globe n．球体；地球仪；地球→global adj.全球性的；全世界的5．violent adj.猛烈的；激烈的；强暴的→violence n．暴力→violently adv.猛烈地6．atmosphere n．大气层；气氛7．unlike prep.不同；不像→dislike vt.不喜欢8．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9．harmful adj.有害的；伤害的→harm n．危害，害处→harmless adj.无害的10．exist vi.存在，生存→existence n．存在，生存11．puzzle n．谜；难题vt. & vi.(使)迷惑；(使)为难→puzzled adj.迷惑的→puzzling adj.令人迷惑的12．gravity n．万有引力；重力13．satellite n．卫星；人造卫星14．climate n．气候15．spaceship n．宇宙飞船16．pull n. & vt.拉(力)；拖；牵引力17．float vi. & vt.(使)浮动；(使)漂浮 n．漂浮物18．mass n．质量；团；块；大量；(复)群众●重点短语1．in time 及时；终于2．lay eggs 下蛋3．give birth to产生；分娩4．in one’s turn 轮到某人；接着5．prevent...from 阻止；制止6．block out挡住(光线)7．cheer up感到高兴；感到振奋8．now that 既然9．break out突发；爆发10．watch out密切注视；当心；提防11．cool down 冷却12．as well as 也；还有……13．depend on依靠；依赖，取决于14．get close to 靠近●重点句型1．This produced a chain reaction, which made it possible for life to develop. 这就形成一个连锁反应，使生命发展成为可能。
Unit 4 Astronomy- the science of the stars
Unit 4 Astronomy: the science of the stars Unit 4 Astrn: the siene f the starsgraarTeahing gals1 Target languagea重点词汇和短语suffer, settle , realize , rr abut , have gt t, tie upb重点句子：He as ver disappintedhat it as t bee as a sterT save ne, u ust use as fe rds as pssiblePratise taling abut prbles in stud r lifeprble is… The diffiult is… truble is…The questin is… advie is… hat I thin abut it is…The fat is… suggestin is…2 Abilit galsLearn t use Nun lauses as the subet3 Learning abilit galsLet Ss learn h t use Nun lauses as the subetTeahing iprtant pintsthe use f Nun lauses as the subetTeahing diffiult pintsH t teah the Ss t learn t use Nun lauses as the subetTeahing ethdsLearn graar thrugh pratieTeahing aidsputerTeahing preduresStep 1 Revisin1he retelling f the passageThe explsin f the earth prdued ater vapr, hih turned int ater hen the earth led dn ater alled the earth t disslve harful gases int the eans and seas That ade it pssible fr life t begin t develp The arrival f sall plants enuraged the develpent f earl shellfish and all srts f fish an illins f ears later the first green plants began t appear n land Later land anials appeared Se ere insets thers, alled aphibians, ere able t live n land as ell as in the sea hen the plants gre int frests, reptiles appeared fr the first tie Later, dinsaurs develped The beae the st iprtant anials n the earth fr illins f ears After the disappeared, aals beae re iprtant The ere the last grup f anials and the ere different beause the prdued their ung fr ithin their bdies Sall lever anials, ith hands and feet, appeared and spread all ver the earth As tie ent b, the vered the earth and have bee the st iprtant anials n the planet2Translate the flling sentenes1你迟早会成功的。
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
Astronomy-the-science-of-the-stars课件6
Because they have larger brains than any other creatures (生物.尤指动物) on the earth so far.
Have you ever heard of these stories?
Pangu separates the sky from the earth.
The Solar system
?HOW LIFE BEGAN ON THE EARTH
What was there on the earth before life could begin? Why do scientists think there has never been life on the moon?
Can you put the order of development of life into a time line? Use the reading to help you.
• • • • • • • • • • （ ）A insects and amphibians appear （7 ）B a solid ball （2 ）C reptiles appear （8 ）D a cloud of dust （1 ）E shellfish and other fish appear （5 ）F dinosaurs appear （9 ）G small plants grow on the water （4 ）H plants begin to grow on dry land （6 ）I presence of water （3 ）J mammals (including humans) appear 10
? ??
1 Why was it wrong in the film and stories to show dinosaurs and people together? ☆Because dinosaurs died out long before human beings came into being. 2 Why do you think that humans are the clearest animals on the earth?
高中英语 Unit4 Astronomy the science of the stars课件 新人教版必修3
The development of life
As a student, what little things can we do for the earth?
to prevent the earth from getting hotter and hotter to slow down the problem getting worse ……
water
Cells separate
Plants on land
Plants in the
Early shellfish
water
and fish
oxygen
Insects and amphibians
Reptiles
Mammals
Dinosaurs
Man had evolved from apes.
6. forests
10. small clever animals with hands and feet
7. Reptiles (on land) 8. Dinosaurs (on land) 9. Mammals (on land)
11. humans
brainstorming
What subjects do you learn at school?
Pangu separates the sky from the earth.
Nvwa makes human beings.
God created man. 上帝造人
Step 5 Reading
What is the passage about?
How life began on the earth.
Step 2 Warming up
2020版高考英语一轮基础习选题 Unit 4 Astronomy the science of the stars(含解析)
Unit 4 Astronomy the science of the stars李仕才一、阅读理解。
The Internet plays a big part in human life. We use it for work and entertainment. We can find new recipes on the Internet or advice on staying healthy. We can even use it to learn a new language. We use the Internet to connect with family and friends and stay in touch with issues we care about.The list goes on and on.As far as the Internet being a part of our lives—well, that train has left the station. That expression means there is no going back. If you prefer boating, you can say that ship has sailed.So, there may be no going back to an Internet-free life. But can using the Internet too much be bad for our health?It might be, say researchers.Study results show that teens who spend at least 14 hours a week online were more likely to have high blood pressure.High blood pressure makes your heart and blood vessels work too hard. Over time, this extra strain increases your risk of a heart attack or stroke.High blood pressure can also cause heart and kidney disease. It is also closely linked to some forms of dementia, a brain disease. Dementia is marked by memory disorders, personality changes, and a reduced ability to reason.Let’s introduce something about the study of it.The Henry Ford Hospital in Detroit, Michigan did the study. It involved 335 young people, from 14 to 17 years old. One hundred thirty-four of the teens were described as “heavy Internet users”. Researchers found that out of these 134 teens, 26 had high blood pressure.The researchers say the study is the first to connect heavy web use and high blood pressure. Other research has connected that heavy Internet use with health problems including anxiety, depression and obesity.The lead researcher of the study is Andrea Cassidy-Bushrow. In a statement she said, “Using the Internet is part of our daily life but it shouldn’t consume us. ”For the purpose of the study, she explains, teens considered heavy Internet users were online on “average 25 hours a week. ”Ms Cassidy-Bushrow adds that it is important for teens to take “regular breaks from their computers or smartphones” and to do some “kind of physical activity. ”She also suggests that parents limit their children’s use of the Internet to two hours a day, five days a week.【文章大意】互联网如此有用并且融入我们的生活, 但过度使用它, 会导致多种健康问题。
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.
【全程复习方略】2014版高考英语 Unit 4 Astronomy：the science of the stars课件 新人教版必修3
player.
Ⅰ. 单词盘点 核心速记 system n. ) 1. ______( theory n. ) 2. ______( 系统；体系；制度 学说；理论 大气层；气氛 因此；于是
atmosphere n. ) 3. ___________( thus adv. ) 4. ____(
pull n. &vt. ) 5. ____( float vi. &vt. ) 6. ____( (n . )
appear millions of years later, the first small plants began to 3. _______ on the surface of the water. They multiplied and filled the oceans oxygen Next, green plants began to grow on and seas with 4. _______. land. When the plants grew into forests, reptiles appeared for the laying eggs. first time. They produced young generally by 5. ______ When dinosaurs disappeared, mammals became more
Do We Need Space Exploration Man has been fascinated by outer space for thousands of years. It has been over forty years since man’s first landing on the moon. Now, some people believe that space exploration is a waste of time and money. They point out the fact that it cost billions of dollars to carry on the space research, but a little
高考英语复习Unit4Astronomy：thescienceofthestars新人教版必修市赛课
23.crash vi.& vt._碰__撞__；__坠__落__ 24.float vt.& vi._(使__)_浮__动__；__(_使__)漂__浮___
(n.)漂__浮__物__ 25.exhaust vt.用尽；耗尽；使精疲力尽
(1) exhausted adj.感到筋疲力尽 exhausting adj.令人疲劳
索两种截然不一样观点；第三段：总结自己观点。特色以下： 巧用被动语态引出话题；利用现在完成进行时表示中国人民一直以
来梦想；利用含有目标状语从句复合句总结自己观点。写作过程中使 用过渡和衔接词汇，如however，in their opinion，in addition， personally等，确保行文连贯，过渡自然。
Different students have different opinions. The majority are in favor of space exploration because the Chinese people
have been dreaming of going into outer space for a long time. It will help China to take part in the international competition in the future. However，some students argue against it. In their opinion，space exploration increases the economic burden. In addition，as a developing country，China should try to solve other social problems.