高一英语必修三unit4学案.doc

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人教新课标高一英语必修三教案：Unit4Astronomy全单元.docx

Unit 4 Astronomy: The Science of The StarsTeaching aims:1.Enable students to improve their listening skills and reading ability.2.Enable students to understand the development of gravity and how gravityaffects us in different times and places.3.Arouse students ’ interest to search for the mystery of space.Emphasis:1.Words and expressions: gravity, float, cheer up, now that, break out, etc2.Astronomic knowledge like gravity and black hole.Difficulties:1.Help the students to understand the development of gravity.2.Help the students to know how gravity influences us.Teaching methods:skimming, scanning, discussing.Teaching aids: tape recorder, a projector and a computer.Teaching procedures:Period one ReadingStep 1. PresentationT:Hello, everyone!odayT we ’ ll come to Unit 4 Astronomy. Before that I have a question: Where do we come from? Or we can say: Who are our ancestors?S1: Monkeys!S2: Beijing Ren who lived many years ago.S3: Reptiles.S4: Mammals.S5: Amphibians.S6: Dinosaurs.T: Very good! Can you put them in right order?S7: Amphibians, Reptiles, Dinosaurs, Mammals, Beijing Ren.T:Do you know what it was like before life appeared on earth?S8: It was full of water, perhaps.T: Before that, what was it like?S9: Sorry, I don’ t know.T: Do you want to get more information? Today we’ ll learn something about How Life Began the Earth. Turn to Page 25. Let’ s come to Warming up first.Step 2. Warming up1.Read the three questions, while the students listen and follow.2.Give the Ss several minutes to discuss the questions.3.Collect answers from the whole class.4.Check the answers while discussing.T:I ’ ll read the three questions for you. You should listen to me carefully. (If students don howto discuss, show them an example.) For example, medicine. When someone gets seriousillness, he will go to the hospital. The doctor will examine him. He will take his temperature, measurehis blood pressureand give him an X-ray, or a CT. For the whole process of the examination, what kind of science has been used?S1: Biology.S2: Chemistry.T:So we can say medicinecombinesbiologyand chemistry.What aboutbiochemistryand geophysics?S3: I think biochemistry combines biology and chemistry.S4: Geophysics combines geology and physics.T:What about astronomy?S5: Physics.S6: Mathematics.T:Very good. We should know that astronomy is a multidisciplinary subject and if we want todo some researchon it, we shouldknow many sciencesubjectsrelatedto it. Now discussthesecond question:Whatdo we mean when we say we are studying a subject scientifically? Or what’ s t attitude towards science?S7: We should be objective, not superstitious.T: What ’ s the correct way to prove a scientific idea?S8: We should design experiments to test it for several times.S9: Then we can analyze the results and draw a conclusion at last.T:Let ’ s sum up the answers. To study a subject scientifically, we must try to be objective. Inorder to test our idea, we shoulddesign experiments,then analyzethe results and draw a conclusion. Now let’ s talk about the third question.What are the most important skills we need to be real scientists?S10: We should be very careful.S11: Be objective and logical.S12: We should be wise enough to design an experiment and write the reports clearly.S13: We should be able to draw conclusions from the experiments and not imposeconclusions on the data.T: I think you have done great work. From the discussion we know that it’ s not e scientist. So you should work harder if you want to be a scientist.Step 3. Pre-readingGet the Ss to discuss the questions on Page 25 with their partners. Then ask the Ss to tell their stories. Encourage the Ss to tell different stories. If they don’ t know any, tell th T:Nowplease look at the slide show. And discuss these questions with your partners. ThenI ask some students to tell us their stories. Are you clear?Ss: Yes, Sir/Madam.1. Do you know each religion or culture has its own ideas about the beginning of the universe? Please give an example if you know.2. Do you know what a scientific idea is?After the Ss ’ discussion, teacher says the following.T:Now who ’ d like to tell us a story? Volunteer!S1: Let me try. In China, we all know that Pangu separates the sky from the earth.T:Can you describe the story in details?S1: Sorry, I can’ t remember clearly.T:Who can? Nobody? Now I ’ ll tell you. Look at the screen.Step 4. ReadingScanningGet the Ss to read the passage quickly and accurately and meanwhile helpSs thetoform agood habit of reading.Teachergives the Ss a coupleof minutesto look throughthe wholepassage. Tell the Ss to read the text silently and then ask some detailed questions aboutthe text on the slide show with their partners. Teacher shouldencourage the Ss to expresstheir ideas.T: We ’ re going to learn a passage about how life began on the earth. Now let ’ s show. Read the text quickly and find answers to the following questions. Show the questions on the screen.1.What was there on the earth before life could begin?2.Why do scientists think there has never been life on the moon?3.Why did animals first appear in the seas?4.Why did green plants help life to develop?5.Why were mammals different from other animals?T: Now who can answer the first one?S1: Water vapour, carbon dioxide, oxygen, nitrogen and other gases.T: What about the second one?S2: Because there is no water on the moon.T: What about the third one?S3: Because water allowed the earth to dissolve harmful gases into the oceans and seas.T: The fourth one?S4: Becausegreenplants can takecarbondioxidefrom the atmosphereand fill the airwith oxygen.T: What about the last one?S5: They were different because they produced their young from within their bodies.T: Well done! Now turn to Page 26 Comprehending1, I think you may continue to read it againto get more details.SkimmingIn this part, Ss will read the text again and then finish Part1, 2 and 3.T:Now please skim the passage fast to finish Part1. Then we will check the answer.Key to Part1: BCBBT:Skim Paragraph 2, 3 and 4, and finish Part 2 and 3.Key: DBIGEHACFJT:For Part 3, discuss them with your partner.T:Why is it wrong in films and stories to show dinosaurs and people together?S:Because dinosaurs died out long before human beings developed on the earth.T:Do you agree with him?S:Yes.T:What about the answer to the second question?S:They are the cleverest animals because they have larger brains than any other creatures on the earth so far.T:Excellent job! I ’ ll check how much you have learned about the passage. Step 5. ListeningListen to the tape for the students to follow and have further understanding of the passage. T:Read after the tape, then answer me some questions with your book closed.Play the tapeT:How did water come into being on the earth?If one student can’ t answer completely, ask two or three or more students.Ss: The explosion of the earth produced water vapor, which turned into water when the earth cooled down.T:Why is water important on the earth?Ss: Because water allowed the earth to dissolve harmful gases into the oceans and seas. T:No.3, finish the following form.1 small plants in2water3 green plants on land4insects(on land)576 forests89Key to the exercise:2.shellfish and all sorts of fish5.amphibian(on land and in water)7.reptiles (on land) 8.dinosaurs(on land) 9.mammals(on land)T: That’ s all for this passage. Now let’ s deal with some language points. ExplanationT: Turn to Page 25. Let’ s look at the sentences:1.It exploded loudly with fire and rock, which were in time to produce the water vapour. which leads non-restrictive attributive clause.in time: sooner or later;eventually I ’ ll see him in time.in time (for sth. /to do sth.): not lateShe will be back in time to prepare dinner.in / out of time: in/not in the correct time Theaudience clapped in time to the music.2.Nobody knew that it was going to be different from other planets going around the sun. be different from: not like someone or something else in one or more waysNote: We can use very, much, quite, entirely, totally to modifydifferent City life is quite different from country life.going around the sun is-ing form that serves as attributive.Men breaking the law will be punished.Can you see the girl dancing with your boyfriend?3.Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.to come: serves as attributiveShe is the last person to do such a thing.depend on: something might only happen or be true if the circumstances are right for it Our success depends on whether everyone works hard or not.4. Walking does need a bit of practice now that gravity has changed.now that: because of the fact thatNow that I’ m free, I can enjoy music for a while.Nowthat you’ ve grown up you can decide it yourself.Passage AnalyzingChart of the textHow life began on the earthwater 1 small plants in water2 shellfish and all sorts of fish4 insects (on land)4 insects(on land)5 amphibians (on land and in5 amphibians(on land and inwater)7 reptiles (on land)8 dinosaurs (on land)9 mammals (on land)Text RetellingRetell the text using about 100 words.Step 6. HomeworkRetell the passage according to the form.Remember important language points.3 green plants on land6forests10.small clever animalswith hands and feet11.humanPeriod two Extensive reading Step 1Show some pictures of the astronauts in the spaceStep 2Read the passage and fill in the formStep 3 Language pointsst month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer.He couldn ’ t run quickly enough to catch up with the cat.2. Then we were off.be off = set offI am off today.We are off today.3get close to靠近，接近，指动态变化be close to距 ......近，指状态4.But when I tried to step forward I found I was carried twice as far as on the earth andfell over.1). “ A + be倍数+ + as +形容词原级 + as + B ” .This tree is three times as tall as that one.2).“ A + be倍数+ +形容词比较级+ than + B”The number of students in our school is three times larger than that in theirs.3).“ A + be倍数+ + the +名词(size, length, amount) + of + B”The newly broadened square is four times the size of the previous one.6.We watched, amazed as fire broke out on the outside of the spaceship as theearth increased.break out1)战争爆发2)发生争吵3)(火灾 )发生7.cheer up; cheer sb. up感到高兴振奋8.masses of 许多，大量9.get the hang of熟悉 ,掌握 ,理解10.exhausting (sth); exhausted (sb)Step 4 HomeworkCollect passages about gravity.Prepare for speaking.Period three Language Study Step 1. RevisionTranslate the following sentences1.你迟早会成功的。

高中英语Unit4全单元教案必修三

Unit 4 Astronomy: the science of starsPeriod 1 Warming up & Pre-readingTeaching aims:1.Learn the new words.2.Talk about the science of starsStep 1 WordsLearn the new words of this unit.Step 2 Warming up & lead in1.Talk 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 …2.Talk about universe and solar systemT: Let’s follow this astronomer to learn about universe. How did the universe come into being? S1: 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?S2:The solar system contains eight planets and many comets and other objects.T: Can you name the eight planets?S3: 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?S4: Earth. It supports a variety of life and 70% of the earth is covered with seas or oceans. T: Why does life only exist on the earth?S5: Because there is air and water on the earth.Step 3 Pre-readingGet the students to discuss the questions on page 25 with their partners. Then ask the students to tell their stories. Encourage them to tell different stories, If they don’t know any, tell them some.Read some stories to the students.Pangu separates the sky from the earth;The Biblical Account;India;Japan;Europe;Let them discuss in groups.Step4 Homework1.Review the words of this unit.2.Preview the passage of “Reading”.3.Do page 27 Ex.3.Unit 4 Astronomy: the science of starsPeriod 2 Reading and ComprehendingTeaching Aims: Enable the Ss to say something about astronomyHelp the students to form a good habit of readingCultivate the Ss' awareness of protecting the earth.Teaching Importance: How to improve the Ss'ability to understand how life began on the earthTeaching Methods:Task--based methodTeaching Procedure:Step1. Warming up1.Free talk2.Review the words of Unit 4 by playing chess on the blackboard.Step2 Leading-in1.Talk about some pictures.2.Watch a video and then ask the Ss to put the pictures on the screen into a rightorder.Step3 ReadingTask 1 SkimmingRead the passage quickly and join the main idea for each paragraph.Para.1a)The arrival of humans and their impact on the earthPara.2 b)The development of plants and animals on the earthPara.3 c)A widely accepted theory about the formation of the universePara.4 d)The importance of water for lifePara.5 e)The formation of the earthTask 2 ScanningRead the passage carefully and then fill in the blanks with different kinds of living things.Task 3 Careful Reading:Finish the summary according to the text:After the “big bang”, the earth was still just a cloud of _______,it _______loudly with fire and rock, which were _____ to produce the_________, carbon dioxide and other gases. Then ________ grew. They multiplied and filled the oceans and seas with _____. Many millions of years later the first ________ began to appear on land. When the plants grew to forest, _____ appeared for the first time. They produced young generally by __________. When dinosaurs disappeared, ________ became more important.Task 4 Post ReadingDiscuss in groups.1.What problems have been caused by humans to the earth?2.How to protect the earth and make it a better place to live on?Step 4 Homework1. Search the Internet for the imformation of the development of life.2. Read the passage carefully and try to find out key points.Period 3 Reading (2)Teaching goals:1.Learn the usage of some difficult words and expressions.2.Train the students’ ability to remove the difficulties while reading.Teaching important points:Train the students’ ability to cooperate with others.Step 1 Revision1.Check up the homework.2.Have a quiz of the words.Step 2. Language points1. It exploded loudly with fire and rock, which were in time to produce the watervapour.Which leads non-restrictive attributive clause.in time: sooner or later; eventuallyI will see him in time.In time ( for sth/to do sth): not lateShe will be back in time to prepare dinner.In/out of time: in/not in the correct time2. Whether life will continue on the earth for millions of years to come will dependon whether this problem can be solved.To come: serves as attributiveShe is the last person to do such a thing.Depend on: something might only happen or be true if the circumstances are rightfor itOur success depends on whether everyone works hard or not.3.…by laying eggs.lay-laid-laid-laying 放, 把...... 放在......; 产卵He laid his books on the desk.4.give birth to1) 生（孩子）She’s just given birth to a healthy baby girl.她刚刚生了个健康的女婴。

2019-2020学年高中英语人教版必修三Unit4单元导学案

2019-2020学年高中英语人教版必修三Unit4单元导学案2019-2020学年高中英语人教版必修三Unit4 Astronomy:the science of the stars(warming up and reading) Goals1.to enable the students to talk about Astronomy and origin of life on earth.2.to improve the students’ reading ablities of scanning and skimming-Lead-in questions to the topic of this unit1. In our solar system eight planets circle around the sun What are their names?2.Do you know any questions that astronomers are interested in?Pre-reading1.The origin of life on earth is a question that interests astronomers. What do you know about it?2.There are several ideas about the origin of life on earth and the idea in our passage is only one of them .ReadingI. Read the passage carefully and match the main idea with each paragraph. Para. 1 The formation(形成) of the earth.Para. 2 The importance of water for life.Para. 3 A widely accepted theory about the formation of the universe. Para. 4 The arrival of humans and their impact on the earth.Para. 5 The development of plants and animals on the earth.1.What are the three fundamental elements forus human beings to survive on the earth?Why was the earth different from other planets?3.Why do scientists think there has never been life on the moon?4.Why did green plants help life to develop?5.There used to be nine planets in the solar system. Recently scientists have decided that one of them can no longer be considered a planet. Do you know the name of that planet? Do you know why they removed it?6.What problem is caused by human beings?Post-readingWork in groups and discuss what impact human beings have on earth.,such as global warming.and get them to talk about the causes of global warming.Unit4 language pointsGoals1.to master the following words and expressions:in time;unlike;multiply;inturn;prevent…from;exist;puzzle;atmosphere; now that.2.to enable the students to analyse and understand complex sentences especiallynoun clauses观察in time的用法并总结They were in time to produce the water..( ).I’ll see him in time.( )She will be back in time to prepare dinner.( )与time相关的短语:in no time( ) at times( ) at a time ( ) once upon a time ( )on time ( ) at one time ( ) for the time being from time to time ( )at no time ( )阅读下面句子, 注意prevent ... from的意思和用法。

高一英语人教新课标必修3UNIT4导学案答案

班级_______ _____________小组_________第一课时warming up & pre-reading 自主学习学案学习目标：1. 语言目标Language aims:2. 能力目标Ability aims:1) 进一步熟悉掌握一些阅读技巧，比方快速寻找文章细节信息(scanning)、归纳和总结〔summarizing〕。

2) 让学生学会表达自己的思想。

3)情感目标Emotional aims: 让学生弄清楚什么是科学思想，什么是宗教信仰或文化传统。

在探讨生命的起源的科学道理之前，交流一下有关宇宙的起源的种种传说,调动学生的相关知识，激活学生的思维。

重点key points:Talk about the beginning of life on the earth.b. Discuss the order of development of life难点important points:Understand the beginning of life on the earth.Step I some questions in warming up1. How much do you know about the universe"What are they"______________________________________________________________________________________________ ________________________________________________________________________2. Who is the first man landing on the moon"___________________________________________________________________________________Step II pre-readingTask one: Fill in the blanks after listening1) According to a widely accepted theory, the universe began with a "___________〞that threw matter in all directions.2) It was not immediately obvious that ________was to be fundamental to the development of______.3) They are putting too much CO2 into the atmosphere, which prevent _____from escaping from the earth.Task two: careful readingand write down the main idea.paragraph 1: _________________________________________.paragraph 2: The formation of _______________________________________.paragraph 3:The importance of ____________________________________.paragraph 4: __________________________of plants and animals on the earth.paragraph 5: ______________________ of humans and their impact on the earth.Task three : Put the order of development of life into a timeline.1 Insects and amphibians appeared2 Dinosaurs appeared3 The earth became a solid ball4 Small plants greaw on the water5 Reptiles appeared6 Plants began to grow on dry land.7 The earth was a cloud of dust. 8 Water appeared on the earth9 Shellfish and other fish appeared. 10 The universe began with a "Big Bang〞11 Clever animals with hands and feet appeared. 12 Mammals appeared.Answers: __________________________________________________Task Four: summaryAfter the "Big Bang〞, the earth was just a cloud of dust. It __________ loudly with fire and rock, which were ____ ___________to produce the water vapour, ___________ and other gases. Then small plants grew . They ___________and filled the oceans and seas with oxygen. Many millions of years later the first green plants began to ________on land. When the plants grew into forests,________ appeared for the first time. They produced young generally by _________eggs. When dinosaurs disappeared, __________ became more important. Now small clever animals with _____________appeared and ________all over the world. As time ________ they covered the earth and they are putting too much carbon dioxide into the __________, which ________heat ____ ________ from the earth into space. Whether life will continue on earth for millions of years to come will _____________whether this problem can be solved.Language points :1.However , according to a widely accepted theory, the universe began with a " Big Bang〞that threw matter in all directions.in all directions = in every direction 向四面八方He walked ____________________ the village. 他向村庄方向走去。

人教版英语必修三Unit 4(第一课时)教案

Unit 4 How Life Began on the Earth人教版高一英语必修三第四单元第一课时一教学课型阅读课二教材分析这节课内容的中心话题是“天文学”。

这篇文章是一篇夹叙夹议的说明文。

讲述了地球上生命的起源，先从“宇宙大爆炸”讲起，具体介绍了各种生物的起源和出现的顺序。

文章脉络清晰，结构分明，“生命起源”这一话题对高中学生来说充满了趣味性，引人入胜，给学生留下很大的思考空间，能够激发学生的想象力，积极去阅读文章，了解生命的起源以及生物进化的过程。

接着文章就人类对地球的负面影响和地球是否能延续进行讨论。

学生通过略读、速读、摘记等，根据各环节设计的具体任务来学习理解这篇文章，帮助学生进一步了解保护地球的重要性。

通过任务型教学，促进学生进行小组合作学习。

三学情分析高一年级的同学经过上一学期的学习，对于高中学习方式以及培养的能力都有了一定的认识。

在阅读技巧方面，大都学生已经掌握了如略读、跳读、细读等阅读技巧，能在短时间内找到关键词和关键句；但是由于基础不一样，并且地球起源这个话题对于大部分学生来说是陌生的，特别是对于初中基础差暂时落后的学生，所以这也要求我们在设计学案的时候要难度设计要层层递进，区别对待基础不同的学生。

四教学目标 1 知识目标：通过阅读学习，使学生能读懂文章内容，理清文章脉络，让学生了解地球生命的由来以及生命进化的过程 2 能力目标：通过略读、速读、摘记等培养学生的文本解读能力帮助学生形成有效学习策略，提高自主阅读的能力；在质疑，小组探究，同伴互助学习过程中，培养学生独立思考，推理，判断和创造性思维的能力和合作学习策略。

3 情感目标：通过对文章的学习及课堂活动参与激发学习热情，产生学习英语的浓厚兴趣；了解地球上生命的起源及其发展过程，并学会用科学的眼光看待事物，激发学生探索科学的热情。

引起他们对地球未来的关注，对地球面临危机的思考，意识到爱护地球，关爱生命的重要性。

五教学重点难点1. 让学生了解地球生命进化的历程，培养学生获取，分析和处理信息的能力。

Unit4Usinglanguage学案- 高中英语外研版(2019)必修第三册

Unit 4 Using language 学案【本课目标】1.通过对课文的阅读,在具体情境中理解和掌握现在进行时的被动语态。

2.通过学案的归纳,巩固内化重要的语言点,并学以致用。

【知识自主预习】lack v.没有,缺乏n. 缺乏;没有(课本P43) While some say contemporary art lacks skill, meaning and artistic value, others argue that its worth lies in its ability to stimulate new discussions and understanding of everyday objects, such as water pipes and iron wires.尽管有人说当代艺术缺乏技巧、意义和艺术价值,但另一些人认为当代艺术的价值在于它能够激发人们对日常物品的新的讨论和理解,比如水管和铁丝。

(1)lack sth 缺少某物(2)a lack of… 缺少……for lack of… 因为缺少……(3)lacking adj. 缺少的;没有的be lacking in sth 缺少(某种素质)【读一读练一练】(1)What we lack in this house is space to store things.我们这所房子缺少的是储物空间。

(2)It is just because he is lacking in determination that none of his plans ever comes through.正是因为他没有决心所以他的计划才没有一个成功的。

(3)She felt nervous, increasingly confidence in herself. 她感到紧张,对自己越来越没有信心。

(4)The plan was a good one, but it had to be given up support.这个计划很好,但因缺乏支持而不得不被放弃。

高中英语Unit4 解决问题型说明文学案含解析新人教版必修3

Unit 4 Astronomy the science of the starsSection ⅣWriting——解决问题型说明文解决问题型说明文，就是针对某一问题提出具体的解决方法并进行适当论述，给读者提供知识，使之掌握解决问题的方法。

一、基本结构此类作文的篇章结构如下：第一部分：提出问题或阐述某件事情的重要性；第二部分：列举说明处理某事的方式或解决某个问题的途径；第三部分：针对提出的解决方法进行简要评价，也可提出个人建议或选择，并阐述理由。

二、增分佳句1．If I did...，I would do...2．...so＋adj....that...3．...prevent...from doing...4．Only in this way...后面用倒装5．I might do...[题目要求]随着科学技术的发展，人类去太空旅游将不再是遥远的梦想。

假设你是李华，对太空探索极感兴趣，现在请你写一篇100词左右的英语短文，设想在今年暑假去太空旅游，如何克服失重条件下的吃饭和喝水的问题。

第一步：审题构思很关键一、审题1．确定体裁：本文为说明文；2．确定人称：本文的主要人称为第一人称；3．确定时态：主要使用一般现在时。

二、构思1．开篇：提出失重条件下吃饭和喝水的问题。

2．主体：分析和解决失重条件下吃饭和喝水的问题。

3．总结：简要评论。

第二步：核心词汇想周全1．gravity 重力2．float 飘浮3．prevent...from... 阻止……4．solve 解决5．try/have_a_try 尝试6．in_time 迟早；终于第三步：由词扩句雏形现1．如果我去太空旅游，会有一个问题。

If I went to travel in space, there_would_be_a_problem.2．我可能要面对一个问题。

I might be_faced_with a problem.3．在外太空，重力很弱。

2019-2020学年高中英语人教版必修三Unit4 Reading学案及答案

2019-2020学年高中英语人教版必修三Unit 4 Astronomy: the science of the stars—Reading学案主编：审核：编号：3401班级：______ 姓名：________ 使用日期：_________【学习目标】：1. To learn some useful words and expressions in the text.2. To learn the development of life.3. To improve some reading skills, and learn the organization of the text.4. Train Ss’ interests in science and stimulate their love for astronomy.【教学重点】：1. Get the Ss to know the development of life.2. To improve the student s’ reading ability.【Teaching procedures】课前预习【Pre-Class】：Vocabulary learning. 【Write and Read】I.单词检测1．__________ n．天文学2．__________ n．系统；体系；制度3．__________ n．宗教；宗教信仰__________ adj.宗教的；信仰宗教的4．__________ n．学说；理论5．__________ adj.猛烈的；激烈的；强暴的__________ n．暴力6．__________ n．大气层；气氛7．__________ prep.与……不同；不像8．__________ adj.基本的；基础的9．__________ adj.有害的__________ n. &vt.伤害；损害10．__________ n．链子；连锁；锁链11．__________ vi.&vt.乘；增加12．__________ vi.生存；存在__________ n．存在13．__________ adv.因此；于是14．__________ n．迷；难题；vt.&vi.(使)迷惑；(使)为难II. 重点短语1．____________依靠；依赖；取决于2．___________ 及时；终于3．____________ 各种各样的4．_____________ 下蛋5. ________________ 产生；分娩6．_____________ 轮到某人7．________________ 阻止；制止【课堂探究】Step1 lead in-warming up1. In our solar system eight planets circle around the sun. What are they?(Note：According to the present day scientific study, there are only eight planets, with the Pluto excluded.) Keys: The Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.2. Each religion and culture has its own ideas about how life began on earth. What do you know?Step2 Pre-reading1.The origin of life on earth is a question that interests astronomers. What do you know about the scientific theory on the earth?2. Read the title and predict what the reading will be about, then check if you are right.Step3 Reading ComprehendingI. Skimming-Skim the passage and match the main idea with each paragraph.Para. 1 _____ A．The formation(形成) of the earth.Para. 2 _____ B．The importance of water for life.Para. 3 ______ C．A widely accepted theory about the formation of the universe.Para. 4 ______ D．The arrival of humans and their impact on the earth.Para. 5 _______ E．The development of plants and animals on the earth.Ⅱ. True(T) or False(F)．1．It was not until between 4. 5 and 3. 8 billion years ago that people knew what the earth was to become. ( ) 2．Water began to appear on the surface of the earth before gases were produced. ( )3．The global warming will have a great effect on human beings. ( )Ⅲ. Choose the best answer according to the text.1．What began to appear on the earth's surface when it cooled down?A．Water. B．Gases. C．Acids.2．From the last paragraph we can infer that the author is ________.A．confident B．sad C．concerned3．What does the word “they” in the sentences “It exploded loudly with fire and rock. They were in time to produce carbon dioxide，nitrogen，water vapour and. . .” refer to?A．Planets. B．Fire and rock. C．Gases.4．Which is the right order of the development of life?A．Small clever animals→shellfish→dinosaurs→mammals.B．Shellfish→dinosaurs→small clever animals→mammals.C．Shellfish→dinosaurs→mammals→small c lever animals.5．Why were mammals different from other life forms?A．Because they gave birth to young baby animals and produced milk to feed them.B．Because they produced young generally by laying eggs.C．Because they were able to live on land as well as in the water.IV. Fill in the blanks according to the text.【课堂巩固练习】Fill in the blanks according to the reading passage.For several billion years after the “Big Bang” ，the earth was just 1._____ cloud of dust. Between 4. 5 and 3. 8 billion years ago，the dust settled into a solid globe. The earth became so violent and it exploded loudly with fire and rock. They were in time 2. __________(produce) many things，which were to make the earth's atmosphere. As the earth cooled down，water began to appear on 3.______ surface. The continued presence of water allowed the earth to dissolve 4.__________ (harm) gases and acids into the oceans and seas. This produced a chain reaction，which made 5._________ possible for life to develop. Many millions of years later，the first extremely small plants multiplied and filled the oceans and seas 6. _________ oxygen. This encouraged the later 7.____________(develop) of early shellfish and all sorts of fish. Finally，some small clever animals，now with hands and feet ，appeared and spread all over the earth. They are putting too much carbon dioxide into the atmosphere, 8. _________ prevents heat from escaping from the earth into space. 9. _______ life will continue on the earth for millions of years to come will depend on whether this problem can 10. ____ ( solve ).Unit 4 Astronomy: the science of the stars—Reading学案参考答案Step1 Vocabulary learningⅠ. 单词检测1．astronomy n．天文学2．system n．系统；体系；制度3．religion n．宗教；宗教信仰religious adj. 宗教的；信仰宗教的4．theory n．学说；理论5．violent adj. 猛烈的；激烈的；强暴的violence n．暴力6．atmosphere n．大气层；气氛7．unlike prep. 与……不同；不像8．fundamental adj. 基本的；基础的9．harmful adj. 有害的harm n. &vt. 伤害；损害10．chain n．链子；连锁；锁链11．multiply vi. &vt. 乘；增加12．exist vi. 生存；存在existence n．存在13．thus adv. 因此；于是14．puzzle n．迷；难题；vt. &vi. (使)迷惑；(使)为难Ⅱ. 短语默写1．depend on依靠；依赖；取决于2．in time及时；终于3．all sorts of各种各样的4．lay eggs下蛋5．give birth to 产生；分娩6．in one's turn 轮到某人7．prevent. . . from 阻止；制止Step3 Reading ComprehendingⅠ. Match the main idea with each paragraph.Para. 1(C) A．The formation(形成) of the earth.Para. 2(A) B．The importance of water for life.Para. 3(B) C．A widely accepted theory about theformation of the universe.Para. 4(E) D．The arrival of humans and their impact on the earth.Para. 5(D) E．The development of plants and animals on the earth.Ⅱ. True(T) or False(F)．1．It was not until between 4. 5 and 3. 8 billion years ago that people knew what the earth was to become. (T) 2．Water began to appear on the surface of the earth before gases were produced. (F)3．The global warming will have a great effect on human beings. (T)Ⅲ. Choose the best answer according to the text.1．What began to appear on the earth's surface when it cooled down?A．Water. B．Gases. C．Acids.答案 A2．From the last paragraph we can infer that the author is ________.A．confident B．sad C．concerned答案 C3．What does the word “they” in the sentences “It exploded loudly with fire and rock. They were in time to produce carbon dioxide，nitrogen，water vapour and. . .” refer to?A．Planets. B．Fire and rock. C．Gases.答案 B4．Which is the right order of the development of life?A．Small clever animals→shellfish→dinosaurs→mammals.B．Shellfish→dinosaurs→small clever animals→mammals.C．Shellfish→dinosaurs→mammals→small clever animals.答案 C5．Why were mammals different from other life forms?A．Because they gave birth to young baby animals and produced milk to feed them.B．Because they produced young generally by laying eggs.C．Because they were able to live on land as well as in the water.答案 AIV．Fill in the blanks according to the text.【课堂巩固练习】Fill in the blanks according to the reading passage.For several billion years after the “Big Bang” ，the earth was just 1._____ cloud of dust. Between 4. 5 and 3. 8 billion years ago，the dust settled into a solid globe. The earth became so violent and it exploded loudly with fire and rock. They were in time 2. __________(produce) many things，which were to make the earth's atmosphere. As the earth cooleddown，water began to appear on 3.______ surface. The continued presence of water allowed the earth to dissolve 4.__________ (harm) gases and acids into the oceans and seas. This produced a chain reaction，which made 5._________ possible for life to develop. Many millions of years later，the first extremely small plants multiplied and filled the oceans and seas 6._________ oxygen. This encouraged the later 7.____________(develop) of early shellfish and all sorts of fish. Finally，some small clever animals，now with hands and feet ，appeared and spread all over the earth. They are putting too much carbon dioxide into the atmosphere, 8. _________ prevents heat from escaping from the earth into space. 9. _______ life will continue on the earth for millions of years to come will depend on whether this problem can10.____________( solve ).参考答案：1. a 2. to produce 3. its 4. harmful 5. it 6. with7. development 8. which 9. Whether 10. be solved。

2019-2020学年高中英语人教版必修三unit4全单元导学案

2019-2020学年高中英语人教版必修三Guided Learning Plan Unit 4 Astronomy: the science of the starsPeriods 1 &2 Warming-up, Pre-reading and Reading学习重点：1.理解课文，掌握课文中的基础知识。

2.了解太空的背景知识，培养学生的科学探索精神。

学习难点：把握文章的写作顺序，培养快速阅读与整体理解能力。

学法指导：1.快速阅读，掌握课文大意 2. 细读，掌握课文情节和细节，用红笔画出难点 3.通过合作探究主动质疑，学会总结文章段落大意，深入理解课文内容。

A.自主探究Task 1 fast readingSkimming: Go through the passage quickly to get the main idea of each paragraphPara. 1 The formation(形成) of the earth.Para. 2 The importance of water for life.Para. 3 A widely accepted theory about the formation of the universe.Para. 4 The arrival of humans and their impact on the earth.Para. 5 The development of plants and animals on the earth.Task2:True (T) or False (F).1. The earth appeared before the Big Bang happened.( )2. The original atmosphere consisted of nitrogen and oxygen. ( )3. The main difference between the earth and other planets is that there is water on the earth. ( )4. Life began in water and then on land.( )5. Mammals appeared before the development of dinosaurs.( )6. Dinosaurs could give birth to young baby animals and produced milk to feed them.( )7. Human beings produce too much carbon dioxide which causes the global warming on the earth.( )8. According to the text, human beings would disappear in the end. ( )B.合作探究Careful reading:Task1.Scan for the detailed information and find the part talking about the development of life：a cloud of ______→ a solid ______→presence of ______→ small _____ in water → _______ and all sorts of fish → Green ____ on land → ______ and ______ appear → Plants grew into _______ → _____ (on land) →__________( on land) → __________ (on land) →____________ (small clever animals on land)Task2.Read the passage again and try to finish the answers below.1).Why was the earth different from other planets?2).Why did the plants grow before the animals came?3).Why is it wrong in films and stories to show dinosaurs and people together?4).Why do you think that humans are the cleverest animals on the earth?5).There used to be nine planets in the solar system. Recently scientists have decided that one of them can no longer be considered a planet. Do you know the name of that planet? Do you know why they removed it?6).What problem is caused by human beings?C.反馈测试根据课文完成短文并复述课文The _________of the earth produced water vapour, which turned into water when the earth ________down. Water allowed the earth to ________harmful gases into the oceans and seas. That made it possible for life to begin to develop. The arrival of small________ encouraged the development of early shellfish and all ________of fish. Many millions of years later the first________ plants began to appear on land. Later land animals appeared. Some were insects. At last________ rule the world, but they are not taking _________of the earth very well.D.延伸拓展根据所给首字母或中文意思填写单词。

人教版高一英语必修三 unit 4 _教案

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。

必修三 Unit 4 Grammar 导学案

必修三Unit 4 Grammar 导学案学习目标：1.理解主语从句的基本概念和用法2.掌握主语从句中常考点和难点预习案一．将下列句中主语划线。

1.You are a student.2.Smoking is bad for you.3.To find your way can be a problem.4.Energy is what makes things work.5.What she said is not yet known.6.We are discussing how we will deal with the problem.7.That we shall be late is certain. 8.It is certain that we shall be late.二．观察上面句子并回答。

_______,________,_________可作主语，通常放在句子_________.主语从句是___________________________________________________________________ 上面八句中第___________句是宾语从句，第____________句为表语从句，第______- 为主语从句。

探究案一．观察that 用法并归纳总结。

１That she was chosen made us very happy.２．The trouble is that I have lost his address.３．The teacher said (that ) the sun rises in the east and sets in the west.以上that 分别引导的_______从句_____________从句、__________ 从句。

That 在主语从句和表语从句中__________省略，但在宾语从句中__________省略。

人教版高中英语必修第三册Unit 4 阅读课教学设计和导学案

阅读课：太空-最后的边境（新人教必修三第四单元）教学设计&导学案文本解读该板块以“了解太空探索的发展历程”为活动主题，文章按照时间顺序简要介绍了人类探索太空的历史，共有五个段落，分别叙述了以下内容：（1）人类一直对未知的太空充满好奇心；（2）从20世纪中期开始，美国和苏联在太空探索领域取得了举世瞩目的成就；（3）尽管遭遇了一些挫折和灾难，通往太空之路也充满艰险，但人类探索太空的决心不曾改变；（4）中国的太空探索计划虽然起步较晚，但是发展迅速，成就显著；（5）人类探索太空的脚步会越迈越远，前途也将是一片光明。

除了列举一些著名的历史性事件以外，文章还对科学家和宇航员们不畏困难、刻苦钻研、勇担重任、无私奉献的精神表达出赞美之情。

文本特点该板块的阅读语篇是一篇科普文。

科普文章的读者是大众化人群，而非专业领域的学习者或研究者，因此，这一篇体裁的核心目标在于既要抓住科学方法和科学事实，又要保持语言通俗易懂。

设计理念基于文章主线”the development of space exploration”展开文本阅读，从中穿插深度思考Why was space exploration mainly carried out by the USSR and the US in the 20th century? Why has China made great progress in space exploration in the 21st century? What does the title “Space: The Final Frontier” mean?教学步骤（1）教师首先以一段人类探索太空的视频为导入，让学生大致了解人类太空的发展史，为接下来阅读的展开做好铺垫；（2）学生阅读活动2的四个句子然后阅读课文完成活动2及活动3，此环节教师先引导学生学会找topic sentence，如果没有，学生阅读第40页Summarize the main idea的策略提示，然后再总结段落大意；（3）学生再次阅读文本: I. 通过表格的形式展示出Para 2&4中的人类探索太空的历史，并且思考Why was space exploration mainly carried out by the USSR and the US in the 20th century? 以及21世纪中国航天发生了哪些变化？为什么？该环节主要让学生了解人类太空探索的发展历程及重大历史事件，另一方面帮助学生了解我国在太空探索领域所取得的辉煌成就以及对人类太空探索事业的贡献，从而坚定文化自信，增强爱国情怀和民族自豪感；II. 根据Para3中信息学生可以了解人类为探索浩瀚的宇宙付出了生命的代价，引导学生思考What is the importance of carrying on space exploration? III. 总结Para 5中未来太空探索的目标；（4）讨论文章标题。

2019新人教高中英语选择性必修三Unit4 Adversity and Courage单元词汇学案

2019新人教高中英语选择性必修三Unit4 Adversity and Courage公开课学案学习目标：1.To further understand the usages of important words and expressions,such as subscribe,suspect,blame,link,and thanks to,etc;learn to express yourselves by using them.2.To learn to use the right collocation between verbs and prepositions.3.To replace some words and phrases with the new words in this unit.4.To use what you have learnt into writing.Part ⅠSelf-directed study—word formationIn your self-study time,please find out the relative forms of the following words and at the same time,make out their meanings by referring to the dictionary or reference books.1.adversity-adj.2.endurance-v.3.qualified-v.4.enthusiastic-n.5.vigour-adj.6.assign-n.7.abandon-adj.8.relief-v.9.persevere-n.10.resolve-n.11.guidance-v.mitment-v.Part ⅠCollocationsTry to retell the story of Perce Blackborow’s expedition with Ernest Shackleton,using the lexical chunks below.1.be considered as被认为……2.full of vigour充满活力3.apply to do sth申请做某事4.turn sb down拒绝某人5.be qualified to do能胜任6.go aboard上船;上飞机7.set off出发;动身8.assign sb to do sth指派某人做某事9.well and truly确实地10.abandon doing sth放弃做某事11.keep one’s spirits up振奋某人的精神12.from bad to worse每况愈下13.make it成功做到14.feel low情绪低落15.be interrupted by被打断16.hold on坚持17.turn into变成Learning About Language & Using Language & Assessing Your Progress1.sail away远航2.ahead of在……前面3.cheer sb up 使某人精神振奋4.make fire生火5.give off放出(热、光、气味或气体)6.pretty well几乎7.team spirit团队精神8.in a...way以……的方式9.deal with处理10.pay sb back报答某人Part ⅠImportant words and phrases1.qualified adj.符合资格;具备……的知识(或技能、学历等)...because he thought I was too young and wasn’t qualified.【同义句替换】...because he thought I was too young and wasn’t of it.【语境感知】(1)This financial statement was prepared by fully qualified accountants.(2)He is particularly well qualified to give an opinion.【用法小结】be qualified to do sth有资格做某事be qualified for具备……的资格;适合担任……【近义短语】be equal to胜任be fit for合适be adequate to足以做某事【考点运用】(1)He took all kinds of tests to prove he was well qualified this important task.(2)He isn’t qualified vote.【例句仿写】简很适合做这项教学工作。