下载文档原格式
Unit4 Astronomy:the science of the stars主语从句（The Subject Clause）（一）主语从句概念：在复合句中充当主语的句子，叫做主语从句。
句子结构：“主语从句（引导词+主语+谓语..）+谓语动词+句子其它...”What he said is of great importance .他所说的很重要。
That prices will go up is certain .物价要上涨是肯定的。
（二）主语从句引导词：连词that（无词义），,whether（是否）连接代词who/ who（谁）, whose（谁的）,what（...的事）,which (哪一个）连接副词when（什么时候）,where（哪里）,how（如何/怎么）,why （为什么）（1）that引导主语从句，本身无词义，在从句中不做成分，但不可省略。
eg That Tom passed the exam made hisparents happy .汤姆通过（2）whether引导主语从句，意为“是否”，在从句中不做成分，不可省略，位于句首时不能用if 。
Whether we ‘ll go camping tomorrow dependson the weather.明天我们是否去野营取决于天气。
（3）what引导主语从句，意为“...的事，”在从句中做主语、宾语、表语，不可省略。
What is needed for the space trip is careful preparation .（what 在从句作主语）去太空旅行所需要的就是仔细的准备。
What they want is a good book.（what 在从句作宾语）他们想要的就是一本好书。
（4）其它特殊疑问词引导的主语从句：注意特殊疑问词引导的主语从句要用陈述语序。
Who will do it doesn’t matter.谁要做这件事没关系。
2019-2020学年高中英语人教版必修三Unit 4 Astronomy: the science of the stars1. system n1 [C] 系统; 组合装置the nervous system 神经系统the digestive system 消化系统a railway system 铁路系统 a stereo system 立体声音响设备2 [C]（思想、理论、原则等的）体系, 体制, 方法, 方式a system of philosophy 哲学体系the democratic system of government 民主政体a good system of teaching languages 教授语言的良好方法3 [U] 制度; 步骤; 条理You'll find little system in his method of work. 他的工作方法无甚条理.We must introduce some system into our office routine. 我们须在我们日常公务中建立一些制度.4 the system [sing]（某社会、机构、企业等中）沿袭已久的方法、做法和规则You can't beat the system 老规矩触动不得（必须照办）.5 (idm 习语) get sth out of one's `system (infml 口) 宣泄强烈的感情或满足强烈的愿望He desperately wants to be an actor, so you'll have to give him time to get it out of his system.他渴望当演员, 你就得容他时间让他施展自己的抱负.2.the∙ory1.[C, U] 學說；論；說：According to the theory of relativity, nothing can travel faster than light.根據相對論，光比什麼都傳播得快。
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. the USSR abbr. the Union of Soviet Socialist 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. National Aeronautics and SpaceAdministration (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. GPS abbr. global positioning system全球(卫星)定位系统。
How Life Began on The Earth教学内容：人教版高中英语必修3第四单元阅读Ⅰ. Teaching important and difficult points:1. Enable the Ss to master the main idea of the text.2. Get the Ss to understand how to finish the exercises of the text.Ⅱ. Teaching aims:Knowledge aims:1. Let the Ss master the key words.2. Lead Ss to learn the usage of useful sentence structures.Ability aim:Develop the Ss’reading ability and let them use some reading strategies such as skimming, scanning, and so on.Emotional aims:1. Enable the Ss to understand how life began on the earth.2. Get the Ss to be aware of the importance of protecting our earth.渗透法制教育: 在上课过程中给学生渗透与《中华人民共和国环境保护法》相关的内容。
Ⅲ. Teaching methods:Task-based teachingDiscussionCooperative learningⅣ. Teaching procedureStep 1 LeadingUse a short film to lead the Ss to understand the origin of life on the earth.Step 2 Pre-readingAccording to the development of life, let the Ss divide the text into several parts, then ask them to finish the following questions.1. How many parts are there in the passage?2. What dose each part mainly talk about?Step 3 While-reading1. How many steps are there before the earth formed?2. How many steps are there during the development of life?3. Read the whole text and fill the following blanks.Nobody knows how the earth , however, there are a widely accepted , the universe began with a which threw matter in all directions. At that time, the earth was still a cloud of ,after that, the earth had become with its atmosphere, which formed with dioxide, nitrogen and so on. And thenalso appeared on the earth, which was fundamental to development of life.After many millions of years, the first extremely small began to appear, later the early and all sorts of fish also appeared in the water. And then different plants and animalson land. Later the huge animals, called , appeared.Finally some clever animals with and feet appeared, they become the most important animals on the . However, they may let the earth become too to live on.4. Finish the following exercises according to the whole text.(1) why was life able to develop on the earth but not on other planet?A. The earth had a solid shapeB. The earth did not have harmful gases in its atmosphere.C. The water stayed on the earth but not on other planets.D. The earth was not too hot.(2) why was it necessary for plants to grow before animals?A. Animals needed plants to protect them from the sun.B. Plants provided oxygen for animals to breath.C. Animals could hide from hunters in the forest.D. It was easier for plants to grow.(3) what is the correct order according to the text?①The clever animals with hands and feet appeared andspread to grow.②The “Big Bang”.③Small plants began to appear on the surface of the water.④65 million years ago of the dinosaurs ended.A. 2 1 3 4B. 4 3 1 2C. 2 4 3 1D. 2 3 4 1(4)What is the main idea of the text?A. The formation of the earth.B. The humans let the earth become too hot to live on.C. The development of dinosaurs.D. The origin of life on the earth.Step 4 Post -readingRead the text and do the true-or-false questions.(1) Human beings have known the origin of the earth clearly so far. ( )(2) the appearance of water made it possible for plants and animals to live on the earth.( )(3) Plants first appeared on land and then in the water.( )(4) Dinosaurs existed on the earth for over 140 thousand years. ( )(5) It is human beings that are not looking after the earth very well and have caused global warming.( )Step 5 Summary1. How the earth formed .2. The development of life on the earth.3. The earth needs us to take care of it.Step 6 Homework1. Please retell the passage in your own words.2. Finish the exercises in your books.教学反思：本堂课总体达到了预期的教学效果，有不少亮点，但是其中也有许多的不足。
教学过程一、课堂导入Play a game to learn the names and positions of the planets:Venus is next to Mercury.Earth is the third planet.Mars is between Earth and Jupiter.Neptune is the furthest planet from the sun.Saturn is between Uranus and Jupiter.Mercury is closest to the sun.二、复习预习教师引导学生复习上节课所学知识点，（以提问、回顾的形式进行），针对上节课的作业进行讲评、订正、答疑，并通过对主语从句具体用法的分析和扩展导入本节课所要学习的课本知识的学习。
三、知识讲解考点/易错点1 重点单词与短语学习violent adj. 暴力的；猛烈的(回归课本P25)The earth became so violent that it was not clear whether the shape would last or not.[归纳拓展]violent criminals: 使用暴力的罪犯a violent attack: 猛烈的攻击a violent protest：强烈的抗议a violent struggle；激烈的斗争violent winds and storms 狂风暴雨violent toothache: 剧烈的牙痛in time 及时；最后(回归课本P25)It exploded loudly with fire and rock. They were in time to produce carbon dioxide，nitrogen water vapor and other gases，which were to make the earth’s atmosphere.它（地球）巨大的爆炸喷出了烈火与岩石，最终产生了水蒸汽、二氧化碳、氧、氮和其他多种气体，从而形成了地球的大气层。
