人教版英语必修三Unit4（Reading）教案（反思）
Unit 4 Space Exploration (II) 示范课教案【英语人教必修第三册】
Unit 4 Space Exploration 子主题2：太空探索历史及成就Period 2 Reading and Thinking (II)WorksheetUnit 4 Reading and Thinking (II)Activity 1: Homework sharingActivity 2: Read Paragraph 3 and answer the questions(1) Is space exploration always successful?(2) Do humans stop exploration? Why or why not?Activity 3: Read and answer the questionWhat’s the author’s attitude towards space exploration in the future? How do you know?Activity 4: Read again and extractAccording to the passage, what’s the significance of space exploration? Extract an appropriate word to fill in each blank.☐Space exploration _________ human’s curiosity.☐Space exploration _________ human’s determination, effort and ambition.☐Space exploration _________ international cooperation.☐Space exploration _________ China’s progress.☐Space exploration _________ humans and future.Activity 5: Work in pairs and discuss the following questions(1) Did the author use technical terms to explain science? Why?(2) What is the author’s purpose of writing this article?(3) What writing techniques are used in this article? Please illustrate with examples.Activity 6: Discuss and share your opinions(1) What does the title “Space: The Final Frontier” mean? Why does the author use this title?(2) What do you think are other frontiers?(3) Do we have much more yet to discover here on Earth, or is space the only place where real discovery can bemade?Activity 7: Work in groups and retell the textActivity 8: Discuss and shareStep 1: Work in groups to discuss the following questions.(1) Why did humans explore space?(2) Why didn’t humans give up space exploration in spite of the huge risks?(3) What do you learn from it?Step 2: Choose a member to share with the whole class.Activity 9: Think and discuss the following questionsWhat’s your opinion on the future of human’s space exploration? (Agree or disagree; Advantages and disadvantages)Evaluation FormHomework1. Sort out the information about human’s achievements and the risks in space exploration.2. Write a short paragraph to show your own opinion on the future of human’s space exploration.。
人教新课标高中英语必修三Unit4_Astronomy全单元详细教案[1]1
![人教新课标高中英语必修三Unit4_Astronomy全单元详细教案[1]1](https://img.taocdn.com/s3/m/cca11907de80d4d8d15a4ff3.png)
Unit 4 Astronomy: thescience of the starsContents 目录一、单元教学目标和要求(Teaching aims and demands)二、教材内容分析(Analysis of the teaching materials)三、单元预习任务(Pre-unit task）四、教学安排(Teaching arrangements)五、教学步骤(Teaching procedures)六、背景参考资料(Background knowledge)七、评价与反思(Assessment and reflection)一、教学目标和要求(Teaching aims and demands)根据《英语新课程标准》（实验稿）关于总目标的具体描述，结合高一学生实际和教材内容，我们将教学目标分为语言知识、语言技能、学习策略、情感态度、文化意识五个方面。
1．语言知识（Knowledge）词汇（Vocabulary）：能理解、内化、运用以下生词--atmosphere, violent--violence, solid, explode, oxygen, surface, planet, harmful—harm, development—develop, spread, method, presence, telescope, disappointed, force, gradually, float, mass,短语(Phrases and expressions)：the solar system, in time, carbon dioxide, prevent… from, depend on, cheer up, now that, break out,功能(Functions)：学习掌握一些用于陈述问题及给予意见的结构，如：My problem/ trouble is……? The difficulty / question is…My advice/ suggestion is…What I think about it is…Please pay attention to…Make sure you …Watch out for…语法(Grammar)：掌握和运用主语从句。
Unit+4+Reading+and+Thinking+课件高中英语人教版(2019)必修第三册
OAn m4 eOrcictoabnears1t9r5o7naut Neil ArmsTtrhoenSgpsuttenpipke1d_so_an_tte_ol_lit_th_ee__mwoaosnl_,a_fua_nm_c_ho_eu_ds_l_ybsyaythinegU, STShRata’snd one small step for a man, one g_si_ua_cn_cte_sl_es_fa_up_ll_fyo_r_m__oa_rn_bk_iit_ne_dd_._”_FaorlolouwndinEgatrhthis., many more
Ogno1a2lsAwpreirle19a6c1hieved. For examYpulrei, GAamgearicnab’secNamASe Athesp_a_fci_re_s_ta_gepnecrysolnauinncthheedwoVroldyatgoer 1on 5 September 1977 to study_g_od_ein_et_po_s_psapcaec,ea.nd it still transmits data today.
Rabbit being sent to the moon to study its surface. After that, China launched the
Tiangong 2 space lab into space and Tianzhou 1 to dock with it. This signalled one
made great progress in a short time. China became the third country in the world to
inde3, when Yang Liwei successfully
Unit 4 Space Exploration (I) 示范课教案【英语人教必修第三册】
Unit 4 Space Exploration 子主题3：探讨太空探索的意义及计划Period 1 Reading for Writing (I)WorksheetUnit 4 Reading for Writing (I)Activity 1: Watch and answer1. What is this video about?2. Do you think it is worth exploring the space?Activity 2: Read and answerRead for the first time and answer questions.1. What do people think of space exploration?2. Which opinion does the writer agree on? How do you know that?Activity 3: Read and findRead paragraph 2-4 and find out the sub-points and the supporting evidence.1. What does the author present to support the argument?2. What has space exploration done for food production?3. How has space exploration influenced the development of technology?4. What did the pictures of Earth from space make people realize? What did people do then?Activity 4: Read and underlineRead for the third time and underline the lexical chunks that are related to the advantages and significance of space exploration.Activity 5: Discuss the structureDiscuss the structure of the text with the following questions and show it in a table or in the form of mind map.● What information can you get from paragraph 1?● What is the function of paragraph 1?● What information can you get from paragraph 2-4?● What is the function of paragraph 2-4?● What does paragraph 5 tell us?● What is the function of paragraph 5?Activity 6: Find out the way of argument and the linking wordsAnswer the questions to find out the way of argument and the linking words.● How does the author lead to the argument?● How does the author make the argument convincing? How do you know that？● Does the author think exploring space should continue? How do you know that？● What is the function of these linking words?Homework1. Write a summary of the text based on the information sorted out from the text;2. Make a mind map to express your opinion on whether it is worth exploring space and search for more information to support your idea.。
Unit4阅读教案-2021-2022学年高中英语人教版(2019)必修第三册
making rockets that could escape Earth's gravity. Task 3 Read the text again, then complete the chart below.
Task 4
Put the following sentences in time order. A second manned orbit and Chinese spacewalk was completed. Astronauts observe and measure the far side of the moon. Tiangong 2 space lab was launched into space. Yang Liwei successfully orbited Earth.
scientists, people succeeded in realizing their dream (3) _________ (explore) space. On 4 October 1957, the Sputnik 1 satellite (4) ____________(launch) by the USSR. (5) ________________ scientists try to make sure nothing goes wrong, accidents can still happen. These disasters made everyone(6)____________(disappoint), but people still believe in the importance of (7) ________(carry) on space exploration. In 2003, China became the third country to (8)_____________ (independent) send humans into space. Then Shenzhou 6 and 7 completed (9)__ second manned orbit and the first Chinese spacewalk. In spite of the difficulties, scientists hope future (10)__________ (discovery) will not only enable us to understand the universe but also help us survive well into the future. Step 5 Discussion 1.What does the title “Space: The final frontier” mean to you? 2.What do you think are the main reasons for space exploration? Step 6 Homework Review the words and phrases in the passage
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。
Unit 4 Space Exploration (I)示范课教案【英语人教必修第三册】
Unit 4 Space Exploration 子主题2：关注太空探索历史及成就Period 1 Reading and Thinking (I)WorksheetUnit 4 Reading and Thinking (I)Activity 1: Watch and answerWatch the video and answer the following questions.1. What is the video mainly about?2. Do you have any interest in space exploration? Why or why not?Activity 2: Look and predictLook at the title and the pictures and then answer the questions.1. What do you think are the main reasons for space exploration?2. What do you expect to read about in this text?Activity 3: Skim, check and answer1. Is the content of the passage the same as what you expect? What’s the passage mainly about?2. What kind of text is it?3. Where can you probably read the passage?Activity 4: Read and chooseRead the text. Several sentences have been removed from it. Choose the correct sentence (A-D) to fill each gap.Activity 5: Think and discuss the following questions1. How do you usually get the main idea of a paragraph?2. How can we summarise the main idea of a paragraph if there is no clear topic sentence?Activity 6: Summarise the main ideaWork in groups to summarise the main idea of each paragraph by either completing the following sentences or using your own words.Paragraph 1: People are _____________________ and scientists __________________________.Paragraph 2: In the 20th century, ____________________________________________________.Paragraph 3: Humans ________________________________ in spite of ___________________.Paragraph 4: China’s space programme ______________________________________________.Paragraph 5: The future of space exploration__________________________________________.Activity 7: Read and sort out informationRead the passage again and sort out information according to the questions.1. What are the achievements that humans made to explore space in the 20th century?2. What are the achievements that China has made in space exploration?Activity 8: Work in pairs and introduceIntroduce the history and achievements both abroad and China in space exploration.Activity 9: Read and completeComplete the passage with words from the text.Activity 10: Think and completeThink of a word that best fits each definition and complete the crossword.Homework1. Read the text again and sort out the information about human’s achievements in space exploration according to the timeline.2. Search the Internet for information about China’s achievements in space exploration.。
Unit+4+Reading+and+Thinking+课件-高中英语人教版(2019)必修第三册
n. 码头；船坞
理处
transmit vt.&vi. 传输；发送 data n. 资料；数据
disappointed adj. 失望的；沮丧的 desire n. 渴望；欲望
vt. 渴望；期望
carry out n. 继续做，坚持干 ongoing adj. 持续存在的；仍在进行的；不断发展的
on board 在宇宙飞船上；在船/飞机上
Reading and thinking
gravity n. 重力；引力 frontier n. 边境；国界；边远地区 vehicle n. 交通工具；车辆
universe n. 宇宙；天地万物
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Use your own words to summarise the main idea for each paragraph.
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Para 1: ___H_u_m_a_n_s_h_a_v_e_a_l_w_a_y_s_h_a_d_a_n_a_t_u_ra_l_c_u_r_io_s_it_y_a_b_o_u_t space.
【教案】Unit4Reading+and+Thinking教学设计人教版(2019)选择性必修第一册
高中英语人教版新教材选择性必修一Unit4 Reading and Thinking教学设计文本分析本单元的话题是“肢体语言”。
阅读文本“Listening to How Bodies Talk”从地域文化视角解读肢体语言，帮助学生理解地域文化的不同会造成肢体语言的不同，同一个动作在不懂地域可能传递不同的意义或情绪，鼓励学生体验肢体语言的社会交际性、地域文化属性和得体性，进而认识到在跨文化语境中肢体语言在日常交际中的文化特征，并能正确判断和理解说话人的情感和意愿，形成恰当的跨文化交际意识与行为。
该文是一篇说明文。
作者从三个方面讲述了肢体语言的重要性，通过主题句加举例阐述的方式让学生了解肢体语言在人际交往中的特征与作用。
全文共6段。
第一段开门见山，引入主题，阐明文字和肢体语言是交流的两种方式，后者通过肢体的变化既能表达自己的思想观点，也能帮助了解他人的所思所感，以强调肢体语言在表达交流中的重要性。
第二、三、四段讲述了相同的肢体语言在不同文化中有不同的内涵。
第五段结合实例讲述了有一些肢体语言在世界各地有相同的含义。
最后一段说明了某种特定的肢体语言有很多不同的用途。
设计思路立足发展学生自主能力为设计目标，紧扣主题意义。
整个教学环节围绕what,how,why三大问题展开，从语篇信息，写作技巧再升华到写作目的，通过自主，合作，探究等学习方式，引导学生认真研读语篇，鼓励学生积极展示自我，培养学生自主学习能力，为学生学会学习创造条件。
导入部分，先进行互动游行，让学生用肢体语言表演相应内容并让其他同学猜，以此激发学生的学习兴趣，提高学生的课堂参与度。
读前部分，学生根据标题和图片预测文本内容。
进入正文阅读后，学生首先通过快速阅读确定各段主题句，梳理文本的篇章结构，画出结构图。
对第一、二段文本进行指导性阅读，并为接下来学生自主阅读提供范例，让学生通过表格填写方式，系统地梳理“肢体语言”“肢体语言含义”与“国家，地区”之间的关系，并根据文本信息进行相应的推测。
高中英语必修三unit4语言知识点教案讲课讲稿
2012-2013学年下学期高一英语必修四英语导学案 编号： 编制人：审核人： 审批人: 使用时间：2013-4-251) She hasargued that wild ani mals should be left in the wild and not used for en terta inment or advertiseme nts.2) I n ever argue with my husba ndabout mon ey. 3) He stron glyargued aga inst the pla n to go for aweather.★ 4.intend vt.打算，计划；打算使…(成为)；供…(用)(常与for; as; to do 连用)1) How long do you intend to stay here?你打算在这呆多久？ 2) I intend that all huma ns become vegetaria n. 我意愿所有人都成为素食者。
3) I realized that it was intended for women in the countryside. ★ 5. deliver vt.递送；生(小孩)；发表(演说等) n. delivery 分娩；递送1) He delivered an importa nt speech at the meeti ng.2) The ordered goods are to bdelivered in ten days. 3) The doctordelivered the twi ns safely.★ 6. inspire vt.鼓舞，鼓励 inspiring adj.鼓动的；令人鼓舞的 in spired adj.有灵感的；受神感召的 1) She in spired us to work hard.2) All the students are ________ b y the ________ lecture made by the headmaster 用 in spire 的正确形式填空) II. Phrases:★★ 1. move off 离开；起程；出发Last ni ght hemoved off without say ing goodbye.拓展：move in/into 搬进… move on(to sth.开始做(别的事)；换(话题)move out 搬出去； 迁出 move over/up 挪开； 让位★★ 2. work out 辨认出；计算，算出；解决；锻炼身体，做运动Book IV Unit 1 Women of achievement 词汇学习Class: ___ Group: ____ No. ___ Name: __________ 组内评价： ____________ 教师评价： __________ 【学习目标】1. 扎实掌握6个单词、7个短语和2个句型的用法，提高理解记忆后翻译句子的能力。
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人教版英语必修三Unit4（Reading）教案（反思）
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 som e 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. Teachin g methods:
Task-based teaching
Discussion
Cooperative learning
Ⅳ. Teaching procedure
Step 1 Leading
Use a short film to lead the Ss to understand the origin of life on the earth.
Step 2 Pre-reading
According 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-reading
1. 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 then
also 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 animals
on 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 shape
B. 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 and
spread 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 4
B. 4 3 1 2
C. 2 4 3 1
D. 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 -reading
Read 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 Summary
1. How the earth formed .
2. The development of life on the earth.
3. The earth needs us to take care of it.
Step 6 Homework
1. 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。
第一，在教学过程中，把所学文章分成了两大部分来讲解，针对每个部分又用图片把其中的内容巧妙地展示给学生，这样让学生对文章有了清晰的认识。
另外，在Reading部分的教学处理有不足之处，在给学生讲完题目答案后，没有很明确地给答案有误的学生讲解他们的错误的原因；此外，对练习4 的讲解不够具体、细致，没有让全部学生够清楚地知道为什么要选择“这个选项”。
以上就是我对本堂课的反思。