高中英语必修三UNIT4
Unit 4 Astronomy: the science of the star sPeriod one: Warming up and readingPeriod two: Using language and reading(wb)Period three: GrammarPeriod four: Language PointPeriod 1 Warming up & ReadingStep 1 Warming up & lead inTalk about science subjectsT: Good morning/afternoon, everyone. What class do you have today?S1: Maths, English, Chinese, physics, history, and geology.T: What other subjects do you have in school?S2: Computer, chemistry, biology, music, PE, and politics.T: Which is your favourite? Why?S3: My favourite one is …because it’s very interesting/exciting/instructive/…S4: I like …best because …T: Which ones are science subjects?S5: Physics, chemistry, biology, geology and mathematics.T: All these subjects play an important role in the study of science. What subjects are used to study medicine? How about biochemistry? What about geophysics? What subjects are part of astronomy?S6: … S7: … S8: … S9: …T: What does astronomy deal with?S10: Astronomy is the scientific study of the universe and the heaven bodies (such as the sun, moon, and stars), gas, and dust within it.T: What do we call people who study astronomy?S11: Astronomer.Talk about universe and solar systemT: Let’s follow this astronomer to learn about universe. How did the universe come into being?S12: After the “Big Bang”, the universe came into being.T: Do you know the solar system in the universe? What is it made up of? S13: The solar system contains eight planets and many comets and other objects.(Note：According to the present day scientific study, there are only eight planets, with the Pluto excluded.)T: Can you name the eight planets?S14: The Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.T: Which planet do we live on? Can you describe what it looks like?S15: Earth. It supports a variety of life and 70% of the earth is covered with seas or oceans.T: Is there life on other planets?S16: Not yet.T: Why does life only exist on the earth?S17: Because there is air and water on the earth.T: Right, there is a famous saying “Water is the headspring of life”. But how did the water appear on the earth? If you want to get the correct answer, please read the passage on P25. It will tell you.Step 2 ReadingGet the Ss to go through Paragraph 1 on P 25 and find the answers to the following questionsQs: ①What did the earth look like after the “Big Bang”? (a cloud of energetic dust)②How did the earth change afterwards? (…combine into a solid ball)③What happe ned to the ball? (explode…make the earth’s atmosphere)④ How did the water begin to appear? （cool down）⑤ Did water stay on the other planets or satellites? (disappear)⑥Water was important for the beginning of life. How did water make life dev elop? (dissolve harmful gases into …)T: With water, life began and developed on the earth. How did life develop through history?Make the Ss read paragraphs 2-3 and finish the following chart.A cloud of dust →a solid ball →presence of water →small plant s grow on the water→ shellfish and other fish appear →plants begin to grow on dry land→ insects and amphibians appear→ retiles appear →dinosaurs appear→ mammals appearQ: Why was it necessary for plants to grow before animals?(Plants provided oxygen for animals to breathe.)3. RetellSuppose you are Dr. … who studies astronomy. You are invited to give a speech to the school students about the development of life on “Earth Day” (April 22nd).4. Let the Ss read paragraph 4 and think over the problems caused by humans to the earth.T: Earth is home to us the living things. We ought to take good care of it. Do we human beings look after the earth well? What problems have been caused by humans to the earth?(air/water/earth pollution, global warming, desertification, endangered wildlife…)Step 3 ActivitiesActivity 1: We make our home earth in danger. If we still keep doing damage to the earth, we will be homeless one day. It is time we took action and protected it. Discuss in groups “ How to protect our earth and make it a better place to live on?”Activity 2: Suppose you are to design an activity for your school on Earth Day, which is intended to call on teachers and students to protect the earth. Work in groups and choose a reporter of your group to report your work. The following points should be included in the report of your activity. What the activity is aboutWhy the activity is designedWhen and where to do the activityWho takes part in the activityWhat to be done in the activity…Step4 Homework:Search the Internet for the information of the development of life.Read and learn good words, phrases or structures from Reading.Period 2 Using language $ Reading taskStep1. Lead inT: We have learnt a lot about astronomy, have you got interested in it? If you are going to study astronomy, what problem will you face most?S2:Gravity.T: What is gravity?S3: Everything will fall back to the earth if it is dropped or thrown away. The pull of the earth is called gravity.T: Quite right. Who first got the idea of gravity?S4: Isaac Newton.T: How did he get the idea?S5: One day he was sitting under the tree. He saw an apple fall, which made him get the idea. Besides Newton, are there any other scientists who made a great contribution to the idea of gravity?S6: Albert Einstein, Stephen Hawking.T: How did each of them think of gravity? Or did they share the same idea of gravity? Come on, the tape will tell you.Step 2 ListeningListen to the tape and choose the best main idea of the listening passage (Ex.2 P30).Main idea: ①I heard about how three men made mistakes when they tried to describe gravity.② I heard about how three men wanted to find out about the beginning of the universe.③I heard about how the idea of gravity has developed over a long period of time.④ I heard about three scientists and their work.The best answer : ③Listen to the tape again and fill in the chart in Ex. 1 on P30.(Note: Astronomers and scientists think that a black hole is a region of space (not a thing) into which matter has fallen and from which nothing can escape —not even light. So we can’t see a black hole. A black holeexerts a strong gravitational pull and yet it has no matter. It is only space - or so we think.)Step3.ReadingFast readingT: All the three great scientists Newton, Einstein and Hawking played an important role in the development of ideas of gravity. Would you like to know more about gravity?Ss: Yes.T: Is the moon’s gravity the same as that of the earth?S1: No.T: Read fast to see how many times would the force of gravity change?S2: Three.2.Careful readingT: What are the three times? How would the force of gravity change? And how did our weight change?3.SummaryT: Good! I am sure you must know more about the gravity. Suppose you are asked to make a summary about the trip, will you try? You only needto fill the blacks and the first word has been given.Last month I visited the moon with my friend. Before we left, I was told the force of gravity____ would change three times on our journey. Then we took off. As we left the earth, I became very heavy__. Gradually the weight lessened_. When I was in space, it disappeared___. We floated__ weightlessly in the cabin and I cheered up__. When I was on the moon, I was surprised to find out even walking needs lots of practice now that_ gravity changed. The returning of the earth was very frightening__. We were amazed to watch fire break out__ on the outside of the ship.Step4. Reading taskT：Great! But just imagine that the moon has great gravity, then what will happen?S3: It will pull us.T: Right, maybe when we are approaching it, we will be caught in it. So let’s come to the black hole.T: What are in the black hole?S: A large circle of lights going round an empty space.T: What is the circle of lights?S: Large stars.T: What is the empty space like?S: It looks like a mouth needing to be fed.T: How did they feel?S: They watched in shock and amazement as a large sun suddenly disappeared into the hole.T: So what did they decide to do?S: They decided to turn the spaceship away from the hole .T: What was happening?S: not move--- jump and move around the edge of the outside of the hole--- pulling us slowly into its “mouth”--- go faster and faster.T: What did the author feel?S: feel sick, the watch moves slower and slower, my mouth dry, close my eyes.T: It seemed that they would be caught by the gravity of a “black hole”. But what happened later?S: jump again--- increase its speed--- as fast as light--- flew like a bird. T: This time, how was the author affected?S: was bumped and banged--- able to look around us--- the computer started working again.T: What did the author feel?S: Exciting.T: Why?S: They realized that they had di scovered something new about “black hole”---- They “eat’ some objects but “spit” other objects out.Step5. HomeworkSearch for more about the black hole.Read these two passages again to find out how to organize a story. Period3 . Grammar: Noun Clause used as the subjectT: Can you find the following sentence in the reading passage?What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun.In this sentence a noun clause is used as the subject.Please pick out three more sentences with subject clauses from the reading passage.1. because it was not clear whether the solid shape was to last or not.2. What scientists think is that the earth was different because of …3. Whether life will continue on the earth for millions of years to come will depend on …P64 USING STRUCTUREDo you know where we come from? How did the universe begin? Read the passage and try to understand how Stephen Hawking solved the problems?What has attracted Stephen Hawking all his life?What the universe is like has attracted him.Does he think it simple to answer the questions? What’s his opinion? No. The answers have always well beyond our reachWhat have we discovered about the universe, past and present?Milky Way galaxy; billions of galaxies, in a universe that is infinite and expanding; big bang; black hole; a dark matter; a possible Big Crunch. 4.How can we have a complete picture of the universe?Learning to understand what we see.做主语用的名词性从句，因其在复合句中做主语，又称主语从句，引导主语从句的有从属连词that, whether，连接代词who, what, which，连接副词when, where, how, why等。
人教版高中英语必修三unit4全课件
• 6.break out vt.& vi.（战争、打斗等不愉快 事件）突然发生，爆发; 突然发生，爆发; 向外砸开;也可以表示突然大声叫喊等。 • The war broke out in 1937. • A fire break out last night. • She broke out, “That is too unfair!” • take place 表示“发生、举行、举办”，一 般指非偶然性事件的“发生”，即这种事 件的发生一定有某种原因或事先的安排。 例如： • The Olympic Games of 2008 took place in Beijing.
There is no harm in (sb.’s) doing sth.
There is no harm in (your) opening the window.
3.multiply (数目上)增加，增多；乘；（使）繁殖 1) Our problems have multiplied since last year. 2) 2 and 5 multiply to make 10. 3) 6 multiplied by 5 is 30. = Multiply 6 by 5 to make 30. 4) The plants here multiply rapidly.
dissolve harmful gases and
acids into the oceans and
seas.
6. What was important to the development of fish? oxygen. 7. What made possible the rise of mammals on the earth? The disappearance of dinosaurs made the possible the rise of mammals on the earth.
新版人教版高中英语词汇表必修三-Unit4
词汇表必修三Unit41. astronaut n. 宇航员;太空人2. procedure n. 程序;步骤;手续3. m ental adj 精神的;思想的4. cm abbr (centimetre/ senti: (r)or centimeter)厘米5. intelligent adj. 有智慧的;聪明的;有智力的6. rocket n. 火箭;火箭弹7. gravity n. 重力;引力8. frontier n. 边境;国界;边远地区9. vehicle n. 交通工具;车辆10. universe n. 宇宙;天地万物11. determined adj. 有决心的;意志坚定的12. determine vt. 查明;确定;决定13. satellite n. 人造卫星;卫星14. aunch n. 发射;发起;上市15. orbit n. (环绕地球、太阳等运行的)轨道;势力范围vt.＆vi.沿轨道运行;环绕…运行16. giant adj. 巨大的;伟大的n.巨人;巨兽;伟人17. leap n. 跳跃;剧增;剧变(leapt, leapt /lept/or leaped, leaped vt.＆vi.跳过;跃过18. mankind n. 人类19. agency n. (政府的)专门机构;服务机构;代理处20. transmit vt.＆vi.传输;发送21. data n. [pl.]资料;数据22. disappointed adj. 失望的;沮丧的23. desire n. 渴望;欲望vt.渴望;期望24. carry on 继续做, 坚持干25. ongoing adj. 持续存在的;仍在进行的;不新发展的26. on board 在宇宙飞船上;在船上;在飞机上27. .independently .adv.独立地;自立地28. independent adj. 独立的;自立的29. spacecraft n. 航天器;宇宙飞船30. spacewalk n. 太空行走;太空行走的时间31. jade n. 玉;翠;玉器32. dock vi.＆vt.(两架航天器)对接;(使)……进港.码n头;船坞33. signal vt.＆vi.标志着;标明;发信号n.信号;标志34. in the hope of doing sth抱着……的希望35. so as to (do sth)为了;以便36. recycle vt. 回收利用;再利用37. muscle n. 肌肉;实力;影响力38. lack n. 缺乏;短缺.没有;缺乏39. float vi. 浮动;源流;源浮；vt使浮动;使漂流40. .otherwise .adv.否则;要不然41. beyond prep.在更远处;超出42. solar adj. 太阳的;太阳能的43. solar system太阳系;类太阳系44. current adj. 当前的;现在的n.水流;电流;思潮45. figure out弄懂;弄清楚;弄明白46. sufficient adj. 足够的;充足的47. soap n. 肥皂48. towel n. 毛巾;抹布49. microwave n.( also microwave oven)微波炉50. tissue n. 纸巾;(人、动植物细胞的组织)51. facility n. 设施;设备52. keen adj. 热衷的;渴望的53. globe n. 地球;世界;地球仪54. argue vt.＆vi.论证;争辩;争论55. argument n. 争论;争吵;论点56. fatal adj. 致命的;灾难性的57. shallow adj. 肤浅的;浅的58. result in导致;造成59. pattern n. 模式;图案;模范60. analysis n (pl analyses )(对事物的)分析;分析结果61. as a result 所以;结果(是)62. high- end adj. 高端的63. monitor n. 监视器;监测仪vt.监视;监测;监控64. .regularly .adv.经常;定期地65. regular adj. 定期的;经常的;正常的66. foam n. 泡沫橡胶;泡沫67. pillow n. 枕头68. smartphone n. 智能手机69. resource n. 资源;财力;物力70. imited adj. 有限的71. provide for sb提供生活所需72. closing adj. 结尾的;结東的n.停业;关闭;倒闭73. in closing 最后74. mystery n. 神秘事物;迷75. run out用完;耗尽76. attach vt. 系;綁;贴77. oxygen n. 氧;氧气78. Sputnik 1 “旅伴一号”(苏联发射的人类第一颗人造卫星)79. S. .abbr.th.Unio.o.Sovie.Socialis.Republics苏联80. Yuri Gagarin 尤里・加加林(苏联宇航员)81. Neil Armstrong/'niol ' a: strop/尼尔・阿姆斯特朗(美国宇航员)82. .NASA .abbr.Nationa.Aeronautic.an.SpaceAdministratio.(美国)国家航空与航天局83. Voyager1 “旅行者一号”84. Soyuz 11 “联盟11号85. Challenger “挑战者”号航天飞机86. the International Space Station国际空间站87. Jade Rabbit “玉兔”月球车88. Mars n. 火星89. Jupiter n. 木星90. Typhoon Goni 合风天鹅91..GP..abbr.globa.positionin.system全球(卫星)定位系统。
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
人教版高中英语必修三Unit4SpaceExploration重点归纳笔记(带答案)
人教版高中英语必修三Unit4SpaceExploration重点归纳笔记单选题1、Many enterprising young people present their ideas________ getting investment and advice to start their own b usiness.A．at the cost ofB．by means ofC．as a result ofD．in the hope of答案：D考查介词短语辨析。
句意：许多有进取心的年轻人提出了自己的想法，希望得到投资和开始自己事业的建议。
A. at the cost of以……为代价；B. by means of 用；C. as a result of 由于；D. in the hope of怀着……的希望。
根据句意可知，年轻人提出自己的想法是希望得到投资和建议，故in the hope of符合题意。
故选D。
2、These products received good customer response, ______ in 4% comparable store sales growth in November. A．resultedB．to resultC．resultingD．having resulted答案：C考查非谓语动词。
句意：这些产品获得了良好的客户响应，使得11月份销售额增长了4%。
result in“导致，结果是”，为固定短语；句中一有个谓语动词received，且无连词，故空处应用非谓语动词作状语；表示自然的结果，应用现在分词；此处不表动作的完成，故排除D。
故选C。
3、Tu Youyou was awarded the Nobel Prize for her ________ in discovering a new cure for malaria (疟疾). A．differenceB．decisionC．procedureD．achievement答案：D考查名词词义辨析。
全国通用2023高中英语必修三Unit4SpaceExploration知识点总结归纳
全国通用2023高中英语必修三Unit4SpaceExploration知识点总结归纳单选题1、Tu Youyou was awarded the Nobel Prize for her ________ in discovering a new cure for malaria (疟疾). A．differenceB．decisionC．procedureD．achievement答案：D考查名词词义辨析。
句意：屠呦呦因发现治疗疟疾的新方法这一成就被授予诺贝尔奖。
A. difference不同；B. decision决定；C. procedure步骤；D. achievement成就。
结合语意，屠呦呦发现治疗疟疾的新方法是她取得的成就，所以空处应用achievement，表示“成就”。
故选D项。
2、There’s little chance that we will be successful in trying to change the present situation. ________, it is important tha t we try our best.A．MeanwhileB．OtherwiseC．ThereforeD．Nevertheless答案：D考查副词词义辨析。
句意：我们想要改变现状的可能性很小。
尽管如此，重要的是我们要尽力。
A. Meanwhile同时；B. Otherwise否则；C. Therefore因此；D. Nevertheless尽管如此。
根据上文“There’s little chance that we will be successful in trying to change the present situation.”和下文“it is important that we try our best.”可知，两句间是转折关系。
应该用Nevertheless。
人教版高中英语必修三Unit4SpaceExploration知识点汇总(带答案)
人教版高中英语必修三Unit4SpaceExploration知识点汇总单选题1、The branch of olive is the ________ of peace.A．symbolB．signC．signalD．mark答案：A考查名词词义辨析。
句意：橄榄枝是和平的象征。
A. symbol象征；B. sign招牌，迹象；C. signal信号；D. mark符号，记号。
结合常识可知，橄榄枝是和平的象征，symbol符合题意。
故选A。
2、Since last month, George, along with some of his former classmates, ________ to have a 20-year gathering during this summer holiday.A．has been desiringB．desiredC．had desiredD．have desired答案：A考查动词时态。
句意：自上月以来，乔治就和他以前的同班同学一直希望在今年暑假举办一个毕业20年的同学聚会。
根据时间状语since last month，可知谓语动词应用现在完成时态或现在完成进行时，且这个想法是一直存在的，还可能继续下去，故可用现在完成进行时，其结构为：助动词（have/has）+been+动词的现在分词。
再结合选项，因主语为George，第三人称单数，主谓语法一致，应用has been desiring。
故选A项。
3、Not knowing what the future will bring hardly seems a(n) ________ for doing nothing. A．argumentB．resourceC．performanceD．authority答案：A考查名词词义辨析。
句意：不知道未来会发生什么并不是什么都不做的理由。
A.argument理由； B.resource 资源；C. performance表演；D. authority当权者。
人教版高中英语必修三Unit4SpaceExploration重点知识点大全(带答案)
人教版高中英语必修三Unit4SpaceExploration重点知识点大全单选题1、Each one of us are highly recommended to ________ oil and gas by taking advantage of the renewable energy s ources.A．dismissB．concentrateC．possessD．conserve答案：D考查动词词义辨析。
句意：我们每个人都被强烈建议通过使用可再生能源来节约石油和天然气。
A. dismiss解雇；B. concentrate集中注意力；C. possess拥有；D. conserve节约，保护。
根据句意及常识可知，人们通过使用可再生资源，以到达节约石油和天然气的目的。
conserve意为“节约”符合题意。
故选D项。
2、China is fully capable to supply the raw materials needed to produce COVID-19 vaccines; in other words, China has a/an ________ raw material supply. A．optionalB．vitalC．instantD．sufficient答案：D考查形容词词义辨析。
句意：中国完全有能力提供生产COVID-19疫苗所需的原材料；换句话说，中国有充足的原料供应。
A. optional可选择的；选修的；B. vital至关重要的；必不可少的；C. instant立刻的；马上的；D. sufficient足够的；充足的。
根据前文“China is fully capable to supply the raw materials needed to produce COVID-19 vaccines(中国完全有能力提供生产新冠肺炎疫苗所需的原材料)”语境可知，中国在新冠疫苗原材料方面原料充足。
高中英语必修三 Unit 4 必背单词和词块
必修三Unit4 必背单词和词块(一)背阅读单词——会认就行(背诵时遮住右侧汉语，先自主翻译，后比对词义)1.procedure n．程序；步骤；手续2．mental adj. 精神的；思想的3．gravity n. 重力；引力4．frontier n. 边境；国界；边远地区5．vehicle n. 交通工具；车辆6．launch vt.&n. 发射；发起；上市7．recycle vt. 回收利用；再利用8．current adj. 当前的；现在的n. 水流；电流；思潮9．sufficient adj. 足够的；充足的10．facility n. 设施；设备11．fatal adj. 致命的；灾难性的12．mystery n. 神秘事物；谜(二)背重点单词——写对才行1．desire n. 渴望；欲望vt. 渴望；期望2．signal vt.&vi. 标志着；标明；发信号n. 信号；标志3．lack n. 缺乏；短缺vt. 没有；缺乏4．float vi.浮动；漂流；漂浮vt. 使浮动；使漂流5．otherwise adv. 否则；要不然6．beyond prep. 在更远处；超出7．keen adj. 热衷的；渴望的8．shallow adj. 肤浅的；浅的9．pattern n. 模式；图案；模范10．analysis n. (对事物的)分析；分析结果11．monitor n. 监视器；监测仪vt. 监视；监测；监控12．resource n. 资源；财力；物力13．attach vt. 系；绑；贴(三)背拓展单词——用准才行1．Intelligent adj.有智慧的；聪明的；有智力的→intelligence n．智力；聪明；智能2．determine vt.查明；确定；决定→determined adj.有决心的；意志坚定的→determination n．决心；决定3．disappoint vt.使失望→disappointed adj.失望的；沮丧的→disappointing adj.令人失望的→disappointment n．失望4．independent adj.独立的；自立的→independently adv.自立地；独立地→independence n．独立5．globe n．地球；世界；地球仪→global adj.全球性的；全世界的6．argue vt.&vi.论证；争辩；争论→argument n．争论；争吵；论点7．regular adj.定期的；经常的；正常的→regularly adv.经常；定期地8．limit n．限制；极限；界限vt.限制→limited adj.有限的→limitless adj.无限的[语境活用]1．Since the country became independent in 1842, it has played an important role independently.(independent) 2．A person's life is limited but knowledge is limitless.(limit)3．Artificial intelligence has been used in phones, which makes them seem to be intelligent.(intelligent)4．She is a determined girl, so we know that once she has determined to do something, she will make her dream come true with great determination.(determine)5．To my disappointment,_I saw a disappointed expression on his face due to his disappointing testscore.(disappoint)6．He argued against smoking, and insisted that it was beyond argument that smoking was harmful to health.At last, he argued us out of smoking.(argue)(四)背高频单词——先“记牢”再“用活”，不背绝对不行1．determine vt.查明；确定；决定2．disappointed adj.失望的；沮丧的渴望；欲望vt.渴望；期望3．desire n．4．lack n．缺乏；短缺vt.没有；缺乏5．argue vt.& vi.论证；争辩；争论(五)背短语词块——表达出彩，需多积词块才行单元短语再认再现1．carry on继续做，坚持干2．on board 在宇宙飞船上；在船(飞机)上3．in the hope of doing_sth. 抱着……的希望4．so as to (do sth.) 为了；以便5．figure out 弄懂；弄清楚；弄明白6．result in 导致；造成7．as a result 所以；结果(是)8．provide for sb. 提供生活所需9．in closing 最后10．run out 用完；耗尽重点短语拓展用活1．result in导致；造成2．run out用完；耗尽(六)背主题写作——好习作就靠“仿效”和“背诵”议论文：太空探索是否值得？【题目要求】最近，你班同学就“太空探索是否值得”这一话题展开了一场讨论。
人教版高中英语必修三Unit4重点词汇
运用 根据汉语意思完成英文句子。 ⑴ 昨天晚上, 两个小偷破门而入小李 家, 并偷走了一块手表。
Last night, two thieves b__r_o_k_e_i_n_t_o__
Xiao Li’s home and stole a watch.
⑵当地震发生时, 大家都在睡觉。 When the earthquake _b_r_o_k_e_o_u_t_, everyone was sleeping in bed.
必修③
Unit4航天科技
1. system n. 系统; 体系; 制度
例句 In our solar system eight planets circle around the sun. 在我 们的太阳系里，有八个行星绕太阳 运转。
搭配
the computer system 计算机系统 a railway system 铁路系统 the education system 教育体制 a social system 社会制度
派生 systematic adj.有条理的
运用 根据汉语意思完成英文句子。 我认为，目前的考试制度必须改革。
In my opinion, the present examination system must be reformed.
2. theory n. 学说; 理论
例句 However, according to a widely accepted theory, the universe began with a “Big Bang” that threw matter in all directions. 但是，一种普遍为人们所 接受的理论是：宇宙起源于一次大爆炸， 这次大爆炸将物质投射到四面八方。
人教版高一英语必修三 Unit 4 Space Exploration
Lesson 1 Listening and Speaking Talk about how to
become an astronaut
Learning objectives
At this class, you will be able to
4. To become an astronaut in China, you have to have 1,350 hours of flying experience.
Mr Yang: Sure, I had 1,350 hours of flight experience, which I think really helped me.
Listen and Check
• Listen to the specific sentences and find out the differences.
2. Mr Yang always believed that he would become an astronaut one day.
• Listen to the interview and tick the correct statements.
4. To become an astronaut in China, you have to have 1,350 hours of flying experience.
5. Astronauts not only had to learn how to use space equipment, but also had to do a lot of mental and physical training.