北师大版高中英语选修7：Scientific Breakthroughs

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高二英语(师大版)-选修七-Unit 20 New Frontiers (6)-1 教案

3. talk about the qualities of the scientists.
教学重点、难点：
重点：理解文章结构，以及文章内容之间的逻辑关联。
难点：理解文章表达的深层含义。
教学过程(表格描述)
教学环节
主要教学活动
设置意图
Warm-up
1.Students talk about several well-known pioneers and breakthroughs.
3.Students learn the reading strategies and practice using them.
4.Studentsthink aboutwhy the author chooses these five pioneers.
1.让学生关注本文的写作特点。
2.学生明确并练习“如何确定准确细节”的阅读技巧。
2.激发学生学科学、爱科学的兴趣与愿望。
Summary
Wrap up the lesson and assign homework
让学生了解更多关于中国科学家的伟大事迹。
教学目标及教学重点、难点
教学目标：
At the end of the class, students will be able to:
1.draw the structure map and identify the writing purpose of this text;
2.practisereading strategies for identifying accurate information;
教案
教学基本信息
课题
选修七Unit 20 New Frontiers (6) Lesson 3 Scientific Breakthroughs

北师大高中英语选修七20.3Lesson3ScientificBreakthroughs(24ppt)

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H 核心归纳 EXINGUINA
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2.Medical advances ranged from discovering the causes of diseases under microscopes to surgical procedures replacing diseased organs with donated ones. 医学的进步包括从在显微镜下发现疾病的起因到用捐赠器官替代病变器官这样的外科手术过程。剖析 discovering 和 replacing 均为动词-ing 形式作介词宾语,diseased 和 donated 均为过去分词作定语。考点一 rangefrom...to ...(范围)从……到…… Their ages range from 25 to 50。他们的年龄在 25 岁到 50 岁之间。 The frontier ranges from the northern hills to the southern coast. 边界从北部山地一直延伸到南部海岸。
活学活用语法填空
1)If most breadwinners donatea day’s pay
the Hope
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6
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2020-202英语北师大版选修7课件：Unit20Lesson3 ScientificBreak

20世纪最重要的科学家之一是阿尔伯特·爱因斯坦。1905年的夏天，这个直率的年轻人正在摇着他一岁大的孩子，突然灵感产生了。“E＝mc2”诞生了。E＝mc2显示出质量很小的物质怎样能产生出令人难以置信的巨大能量。之后爱因斯坦又在他的“相对论”中表明，就连时间、质量和长度也不是持久不变的——它们随着人们看待它们的角度不同而有所改变。
and weighed over 30 tonnes. With 18,000 tubes, thousands of
circuits and 6,000 switches, it used so much energy that when it was turned on, the lights in the local town went out！
1929年，又一个意义深远的发现诞生了，发现者是一个苏格兰牧羊人家的孩子。去度假之前，生物学家亚历山大·弗莱明把一个带有细菌的盘子放在了实验室里。回来后，他注意到不同寻常的东西。他仔细检查了一下，发现盘子里有青色的霉斑，其周围的细菌都被消灭了。原来这些青色的霉斑正是青霉素的自然形态，弗莱明意识到青霉素是杀灭细菌的有效方法。
通讯随着移动电话的引入而改变，我们通信的方式从写信变成发电子邮件。我们开始在世界各地飞行，同时，科学家们发现怎样分离原子，而原子以前被认为是宇宙中最小的物质微粒。
Although it is impossible to choose the most important discovery, it is possible to single out a few pioneers of the 20th century. Here are five of them.
Unit 20 New Frontiers

北师大版高中英语选修7Unit 20 Lesson 3 Scientific Breakthroughs教案1 北师大版选修7

Unit 20 Lesson 3 Scientific BreakthroughsTeaching aims1.words and phrases：nguage points in the text3.reading strategies4.exercises about text5.vocabulary:phrasal verbs and compound wordsTeaching timeTwo periods(两课时连堂)Teaching processStep 1 RevisionReview the new words of lesson 2 and have a dictionStep 2 learn the new words of lesson 31.ask some students to read the new words first and correct their pronunciation2.play the tape and have them read after the tape3.give them a few m inutes to read the new words freely, tell them if they can’t read the words, encourage them to ask the teacher .step 3 reading1.discuss the pictures and talk about the scientists’ major discoveries.2.do exercise 2 by themselves.3.let the students look at Reading Strategies and check their answers to exercise 1 and 2.4.play the tape twice, and do exercise 4.step 4 language points1.think over v.仔细考虑, 重新考虑2.be aware of v.知道, 意识到eg: Everybody is aware of the importance of study.每个人都意识到了学习的重要性。

北师大版高中英语选修7Unit 20 Lesson 3 Scientific Breakthroughs 课件课件ppt

Theory of relativity
It showed time, mass and
length 4. change according
to our experience of them.
Reading Task:
Edwin Hubble
It proved that the universe
5.New galaxies like was vastly 6. larger than
4. Hubble studied the universe for over twenty years.
5. Hubble discovered that our galaxy is bigger than we thought it was.
6. Fleming had been studying bacteria in his laboratory when the discovery happened.
Alexander Fleming
Penicillin
It saved
7.
Eckert and Mauchly
The first computer
It was produced to increase the US Navy’s missiles.
8 of the
Percy Spencer
9.
It helps us prepare meals in minutes.
hospital when you die.
Are these statement true or false according to the text or is there no information?

北师大高中英语选修七英语Unit20lesson3《ScientificBreakthroughs》课件

Edwin Hubble
American astronomer. He changed our ideas about the universe and how it developed. In the late NineteenTwenties, his study lead to the most important astronomical discovery of the Twentieth century -- the expanding universe. And he proved that nebulae were galaxies themselves. Astronomers now agree that far distant galaxies do exist.
Eckert and Mauchly Together with their team
Reading for specific information
Reading Strategy (2) Read the questions /statements and identify
important words. Find the relevant part of the text and identify the
American physicistJohn William Mauchly and J. Presper Eckert
这是美国军方(navy)要求宾州大学莫奇来（Mauchly）博士和他的学生爱克特（Eckert）设计的，准备用来计算炮弹及火箭、导弹(missiles) 的弹道，它最终在原子弹的研制中发挥了极大的作用。
6. Hubble studied the universe for over twenty

北师大高中英语选修七Unit20Lesson3《ScientificBreakthroughs》课件

Some Discoveries\ Significance pioneers Inventions
Albert Einstein
2. E=mc2 .
It showed how a small piece
of mass could produce an
unbelievable amount of
3. energy .
5. Hubble discovered that our galaxy is bigger than we thought it was. T
6. Fleming had been studying bacteria in his
laboratory when the discovery happened. F
It showed time, mass and length 4
.
according to our experience of them.
Edwin Hubble
5 like the
one we live in
It proved that the universe was vastly 6 . than had previously been thought.
Simple outline
introduction
Body
Some great pioneers of science and their inventions or discoveries
Conclusion
A brief introduction of scientific breakthroughs in the 20th century
Some pioneers Discoveries\ Inventions Significance

英语北师大版选修7Unit21Lesson3《ScientificBreakthroughs》教案

Epidemics throughout history1.With new health threats on the rise, James Madison looks at epidemics throughout history. Bacteria and viruses have been around since the beginning of life on Earth and many of today’s diseases have been existed as long as humans have. It’ s important to look at the spread of diseases throughout history to discover the causes and effects of epidemics.2.----Scientists now think that Justinian’s Plague was actually a disease called bubonic plague. They estimate that between 25% and 50% of the area’s population died from the disease and think that the epidemic was one of the key causes of the fall of the Roman Empire.4----5. In highly populated areas all over Europe, Asia, Africa and the Middle East, one half to one third of the population was lost to the Black Death. Less populated areas, mostly in northern Europe, were less severely affected.6. Another epidemic that started and spread in similar conditions was the Great Flu Epidemic of 1918( also called the Spanish Flu). It struck near the end of the first World War and continued after the war was finished.7.-----8. One epidemic that we haven’t forgotten yet is the SARS epidemic of 2002/2003. it began with an abnormal lung disease in Guangdong Province and spread worldwide after Dr Liu Jianjun came to Hong Kong. He stayed at a hotel where the disease spread to four more people. When these people left the hotel and returned home, they spread the disease to Canada, Hong Kong, Vietnam and Singapore.9 -----10.No one really knew much about SARS as it was completely new to physicians. Doctors weren’t sure how to treat it or prevent it and since most people had no natural defences against the disease. It was also harmful to the doctors and purses treating the SARS patients. Hospital staff, especially nurses, made up 21% of the cases.11----A Having killed between 25 and 50 million people in 18 months. It is believed to be the most acute worldwide epidemic in history. More people died of the flu than died in the war. Yet, somehow, it has been forgotten by history.B. Although aspects of modern life, such as widespread air travel, allowed the SARS epidemic to quickly expand across the globe, other aspects, such as improved communication technology and improved medical research techniques, allowed health experts the world over to share knowledge and work together to stop the virus in its tracks.C In the 1330’s, the bubonic plague returned , this time in Asia. It would spread rapidly and come to be known as “ The Black Death”. The conditions in much of Asia and Europe –war, climate change, a lack of adequate food, crowded cities and a lack of basic health routines---provided the perfect conditions for the disease to spread worldwide.D Over nine months, the number of global cases passed 8,000 and 774 people died. Although these numbers are much smaller than the number for other diseases such as TB or flu, which kill millions every year, the outbreak was still very alarming for a few key reasons.F. Epidemics are described in historical accounts as early as 430 BC and one of the earliest on record is Justinian’s Plague. It happened about 500-550 AD as Roman Emperor Justinian was attempting to rebuild and acquire more land for the Roman Empire. It swept through North Africa, the Middle East and Europe.（2）教案小说人物形象归纳法Read a science article easilyTeaching Aims:To read an article about epidemicsTo improve the Ss’ reading abilityTo improve the Ss’ speaking abilityLearning method: ConcludingTeaching procedure:Step 1: AddressingStep 2:Lead-in1.Listen to the song “Tears in heaven” .2.What’s your feeling after hearing the song?3.Why was the singer so sad?4.What else may cause death?5.Epidemics can cause more deaths than anything else.Step 3: Read the text( 1 ) Read the title carefully and get some general ideas of the text1.Predict what will be talked in the text2.Read other titles and discuss what will be involved3.What is an epidemic?(show pictures about AIDS and bird flu, and ask the Ss to give their own answers) 4.Which of the following diseases are epidemics?AIDS, cancer, headache, flu, heart disease, stomach-ache, TB, malaria, smallpox, SARS5.Causes of epidemics: virus6.Tracks of epidemics7.Epidemics in history( 2 ) Find out the meanings of the different numbers and know more facts about the text1.Ask the Ss to find out the numbers in the text and to talk about the related factsabout them2.Give the Ss an example3.Ask the Ss to practise in pairs4.Ask questions in turns in class( 3 ) Know the fact about an event or phenomena in details(use a form to help you if necessary )1. Talk about the events and fill in the blanks2. Guess the names of the epidemics in the text3. Guess the names of the other epidemics( 4 ) To know the development of the article1.Show the sequencing exercise2.Show the ways to do this exercise3.Ask the students to do the exercise in the text( 5 ) conclusion:Step 4: Read another science article1.Discuss the title2.Talk about some numbers3.Do the sequencing exerciseStep 5: HomeworkFinish reading the new article and retell the text in your own words. (120words ) 附: (1)Tears in HeavenWould you know my nameif I saw you in heaven?Would you feel the sameif I saw you in heaven?I must be strong and carry on'Cause I know I don't belong here in heaven...Would you hold my handif I saw you in heaven?Would you help me standif I saw you in heaven?I'll find my way through night and day'Cause I know I just can't stay here in heaven.. Time can bring you down,time can bend your kneesTime can break your heart,have you begging please，begging please... Beyond the door there's peace I'm sureAnd I know there'll be no more tears in heaven...2. The History of SmallpoxThe Rise and Fall of a Disease1. The history of the rise and fall of smallpox is a success story for "modern" medicine and public health. Even though the disease has been eradicated, the threat of its return has once again brought it to the forefront of public controversy.2.----3. Epidemics occurred in the North American colonies in the 17th and 18th centuries. At one time smallpox was a significant disease in every country throughout the world except Australia and a few isolated islands. Millions of people died in Europe and Mexico as a result of widespread smallpox epidemics.4. The fall of smallpox began with the realization that survivors of the disease were immune for the rest of their lives. This led to the practice of variolation - a process of exposing a healthy person to infected material from a person with smallpox in the hopes of producing a mild disease that provided immunity from further infection. The first written account of variolation describes a Buddhist nun practicing around 1022 to 1063 AD. She would grind up scabs taken from a person infected with smallpox into a powder, and then blow it into the nostrils of a non-immune person.5.----6.The next step towards the eradication of smallpox occurred with the observation by English physician, Edward Jenner, that milkmaids who developed cowpox, a less serious disease, did not develop the deadly smallpox. In 1796, Jenner took the fluid from a cowpox pustule on a dairymaid's hand and inoculated an 8-year-old boy. Six weeks later, he exposed the boy to smallpox, and the boy did not develop any symptoms.7. -----8. The "modern" vaccine that was licensed by the FDA was taken from a weak strain of virus called the New York City Board of Health strain. It was produced by Wyeth Laboratories and licensed under the name Dryvax.9.------10.In 1967 the World Health Organization (WHO) started a worldwide campaign to eradicate smallpox. This goal was accomplished in 10 years due in a large part to massive vaccination efforts. The last endemic case of smallpox occurred in Somalia in 1977. On May 8, 1980, the World Health Assembly declared the world free of smallpox.11------A Jenner coined the term "vaccine" from the word "vaca" which means "cow" inLatin. His work was initially criticized, but soon was rapidly accepted and adopted. By 1800 about 100,000 people had been vaccinated worldwide.B. The United States stopped vaccinating the general population in 1972, butcontinued to vaccinate military personnel. It was recommended that vaccination of military personnel stop in 1986, and vaccination was officially stopped in military recruits in 1990.C.The origin of smallpox is uncertain, but it is believed to have originated in Africaand then spread to India and China thousands of years ago. The first recorded smallpox epidemic was in 1350 BC during the Egyptian-Hittite war. Smallpox reached Europe between the 5th and 7th centuries and was present in major European cities by the 18th century.D. The last outbreak of smallpox in the United States occurred in Texas in 1949with 8 cases and 1 death. Even though most of North America, Western Europe, Australia, and New Zealand were free of smallpox by this time, other countries such as Africa and India continued to suffer from epidemics.D.By the 1700's, this method of variolation was common practice in China, India,and Turkey. In the late 1700's European physicians used this and other methods of variolation, but reported "devastating" results in some cases. Overall, 2% to 3% of people who were variolated died of smallpox, but this practice decreased the total number of smallpox fatalities by 10-fold.（3）Epidemics explained 教学反思一教学设计,目的和思路、1.教材内容说明Epidemics explained 是北师大版教材选修模块7 的最后一个单元中的阅读课,介绍瘟疫在历史上的流行和发展, 文章生词量大, 有一定的教学难度.2.教学目的学生通过阅读课文, 了解文中一些科普知识, 学会描述瘟疫的特点, 掌握阅读科普文章的一些方法3.课堂形式提倡学生自学, 以检查预习, 合作讨论, 你说我猜的形式学习, 体现学生学习的主动性, 还课堂以学生4.教材内容的加工处理用相关插图, 图表等直观的教学形式, 让学生能更快理解课文; 必要的阅读指导,有利于学生技巧的形成; 相关文章的阅读, 能扩大学生知识面; 一些直观的教具如红丝带和抽象的音乐, 希望培养学生的人文素质和高尚情感二教学过程简述1.布置学生预习包括读单词, 找出文中数字的含义, 简单口头描述各次瘟疫的特点,做好文中的一道涉及段落补全的练习2.课文导入包括简介和听英文歌曲“Tears in heaven”, 讨论死亡的原因, 以及有哪些常见的瘟疫3.课文的阅读和学习Step 1: 阅读标题, 预测文章主题,同时找出文中主要瘟疫Step 2: 讨论数字在文中不同的含义, 进一步了解和熟悉课文Step 3: 进一步阅读文章, 了解造成瘟疫的元凶---病毒;描述瘟疫的传播途径, 找出各次瘟疫造成的巨大影响; 描述和猜测不同的瘟疫Step 4: 完成段落补全练习, 介绍相关方法4.点出阅读技巧5. 读一段有关爱滋病对儿童危害的文字, 提示我们应该做点什么课堂的延伸和升华三感受体会在教学过程存在一些问题, 最主要的是课堂时间的把握和安排. 在设计中内容太多, 在课堂上有些环节没有把握好, 如讨论数字用时过多; 提问学生差生面多, 造成进展不顺; 全班朗读课文也费时太多.下面谈谈我本人对这次活动的感想:1.还课堂与学生由于面临着高考的压力, 我们平时的教学中有时舍不得拿出时间让学生在课堂上说,讨论, 而且要设计直观有效的练习形式也相对费力; 可是英语课上我们还是可以还课堂与学生, 尽量让他们自己来学会学懂2.教师的工作真的是只有更好, 没有最好我的教案前期后后修改了几次, 我自己都觉得惊奇: 一堂课, 可以这样上, 也可以那样上, 前后顺序可以不一样, 教学重点可以不一样, 课堂形式可以有天壤之别---那些天我满脑子都在想这堂课要怎么上呢? 而你自己想的和学生的实际情况也不一定想府, 你觉得感动的歌学生可能听不懂, 这个班学生都会的问题, 另一个班的学生会表现出不知所措( 如知道病毒造成瘟疫, 2班学生感到困难, 这是我没有料想到的)---这份工作真的是要有极大的热情才能做3.我学会了许多东西我在和大家的讨论中, 进一步地思考课堂结构和课堂节奏的安排问题; 由于这一次公开课的主题是学法研讨, 我更多地关注学生在课堂上的表现; 在孔艳焰老师帮我润色修改课件的过程中, 我学到了许多电脑知识---我还了解了自己的许许多多不足之处, 明白自己努力的方向4.我心中充满了感激我感谢学校安排的这次活动, 使我们有学习交流的良好契机: 我感谢高中学段英语组全体老师对我的信任和无私的帮助, 使我有了锻炼和提高的机会; 希望大家多多指出我的不足, 使我能够不断进步; 也希望我们要更多的机会学习交流, 把我们的工作越做越好.谢谢大家!Step 3 : Reading Strategies: how to read a science article1.Read the title carefully(1)To present question 1What’s the main idea of the text?A.New health threats is on the rise.B. A lot of epidemics happened in history.C.SARS used to be out of control, now people are trying to stop it on the track.D.We should pay more attention to our health.(2)We can predict what will happen in the text from the titleIn this text, some epidemics in the history will be talked.(3)Give more titles and ask the Ss what will be talkedA.EpidemicsB.Epidemics and economyC.SARSD.The history of the Black Death2. Read the text fast and get the general idea and basic information(1)To present question 2Read the following graphic and try to tell which epidemics are described?(To see the PPT.)(2)We will try to know some basic information about epidemics in history.3.Read the text carefully and understand related science termsIn this text, a lot of medicine words are involved.(1)To present question 3What does the word “affect” mean in the 5th paragraph?A 影响B效果C感染D死亡(2)Now read the text carefully and complete the sentences using medicine words in the text:1.Bacteria and __________(病毒)have been around since the beginning of life onEarth.2.It’s important to look at the __________(传播)of diseases throughout history todiscover the __________(原因)and __________(影响) of epidemics.3.Another epidemic __________(开始) and __________(传播)in similar conditionswas the Great Flu. It __________(侵袭)near the end of the first World War and __________(持续)after the war.4.Doctors weren’t sure how to __________(治疗)or __________(预防)it and sincemost people had no natural __________(防御)against the disease, it was harmful to doctors.5.One half to one third of the population was __________(死于)to the Black Death.Less populated areas were less severely__________(感染).6.SARS epidemic quickly __________(扩大)across the globe. Health expertsworked together to __________(阻止)the virus in its __________(路径).7.It __________(席卷)North Africa, the middle East and Europe.(3)While doing these kind of exercise, explain some words such as “track”.4.Try to know more science knowledge through reading the text carefully(1)To present question 4The Black Death spread rapidly in Asia and Europe because_________A It was the terrible bubonic plague that returned.B There were so many people in these areas.C At that time, people didn’t know how to treat it.D People suffered from the bad climate , the war and hunger. There were so many people and they didn’t have daily health care.(2)To show a picture to demonstrate(3) To answer more questions about science knowledge●Why do we say epidemics have been with us for thousands of years? (ppt)●Why was bubonic plague one of the key cause in the fall of the Roman Empire?●How did SARS spread from Hong Kong to Canada, Vietnam and Singapore?●Why did many doctors and nurses become ill with SARS ?5.To figure out the development of the text(1)To introduce sequencing exercise (ppt )(2)To present question 5Read the whole text and match the five paragraph(A-E) with gaps 2,4,7,9 and 11 in the text(3) Read the text with gaps to get the general idea and see how it develops(4)To analyze the beginning and ending words of each paragraph6.Conclusion●Read (Find ) the title carefully●Read the text fast and get the general idea●Read the text carefully and understand related science terms●Try to know more science knowledge through reading the text carefully●To figure out the development of the textStep 4:Read the text again and give your own questions using the strategies we have learnt1.Show an example about giving questionsQuestions about general ideaWhat can be inferred from the text?A.Epidemics develops with the development of human beingsB.An old epidemic will cause another oneC.Epidemics may disappear one day due to the development of medical scienceD.Epidemics can cause a lot of deaths.2.Show the Ss ways to ask questions●The purpose of the writer is to---●The story tells us that----●According to the text,-------●It can be learned from the text that----●The best title for the text would be---●Which of the following statement is true (false)?●Arrange the event in the text according to the correct order.●After reading the text, we know that---●The word “---” in the text means-----●What’s the Chinese meaning of these words?●The word “---”can be replace d by---●Why----- ?●What is the reason for-----?●What is----?We learn from the text that -----3.The Ss are asked to give out their own questions in groupsGroup 1-2: questions about basic details in the textGroup 3-4: questions about wordsGroup 5-6: questions about science knowledgeGroup 7-8: questions about sequencing4.Ask the Ss to change their questions and answer it.Good question: 1o score Good answer: 6 scoreOrdinary question: 7 score Ordinary answer : 4 score Bad question: 4 score Wrong answer: 2 score Step 5: HomeworkRead another science article and give 5 questions of your ownTears in HeavenWould you know my nameif I saw you in heaven?Would you feel the sameif I saw you in heaven?I must be strong and carry on'Cause I know I don't belong here in heaven...Would you hold my handif I saw you in heaven?Would you help me standif I saw you in heaven?I'll find my way through night and day'Cause I know I just can't stay here in heaven..Time can bring you down,time can bend your kneesTime can break your heart,have you begging please，begging please...Beyond the door there's peace I'm sureAnd I know there'll be no more tears inheaven...歌手简介:1945年3月30日Eric Patrick Clapton出生于英国萨里郡的瑞普雷在演出过程中逐渐形成了自己的蓝调风格,是摇滚乐坛中首屈一指的吉他大师.五十多岁方育得一子，然造化弄人，稚龄爱子竟从纽约数十层高的公寓阳台意外摔下身亡，这个打击几乎让他再度一蹶不振，不过将近50岁的Eric Clapton将他思念之苦寄情歌中，于是产生"Tears In Heaven"这首歌，它首先被收录于电影《迷途枷锁》(Rush)的原声带中，他的歌声苍凉悲壮却又柔情似水，能够净化人的灵魂。

北师版选修7Unit 20 Period 3 Lesson 3 Scientific Breakthroughs

Period Three Lesson 3 Scientific BreakthroughsⅠ.单词自测1．procedure n．步骤；程序2．donate vt.捐赠；赠送3．correspond vi.通信；符合4．meanwhile adv.同时5．split vi.分离，分开6．premier adj.最重要的；n.总理7．outspoken adj.直言的，坦率的8．outcome n．后果，结果9．cure vt.治愈10．wrestle vi.努力解决；摔跤；搏斗11．patent n．专利Ⅱ.短语自测1．range_from...to...在某范围内变化2．replace...with...用……代替……3．figure_out计算出4．be_thought_to_be被认为是……5．turn_to_sb.向某人求助6．wrestle_with_sth.努力解决难以处理的事物7．be_dedicated_to献身于；专注于8．by_mistake错误地；由于差错9．be_grateful_for感谢……，对……心存感谢10．experiment_with试验……，试用……1．In the summer of 1905，this outspoken young man was_rocking his one－year－old baby when he was suddenly inspired.1905年的夏天，这位直率的年轻人正摇着他一岁大的孩子，这时他突然产生了灵感。

2．Einstein had already become world－famous when a young ex－lawyer，returning_from_the_First_World_War，started work in California.从一战中转战回来，曾经担任过律师的年轻人在加利福尼亚开始工作时，爱因斯坦已经举世闻名了。

北师大版高中英语选修七Unit 20《Lesson 3 Scientific Breakthroughs》课件 1

program. 11. The scientist who discovered microwaves invented
microwave ovens. 12. Today it is possible to donate your heart to
hospital when you die.
Are these statement true or false according to the text or is there no
The World First Computer
Percy Spencer, an American engineer and inventor, discovered microwaves.
Percy Spencer
Try to match the discoveries with how they were discovered?
2. Einstein participated in the program that developed the nuclear bomb.
3. Einstein observed changes in time, size and mass.
4. Hubble studied the universe for over twenty years.
original goal. T 10. The first computer was extremely difficult to
program. NI
11. The scientist who discovered microwaves invented
microwave ovens. NI
12. Today it is possible to donate your heart to

北师大版高中英语选修七Unit 20《Lesson 3 Scientific Breakthroughs》课件 3

目录退出
(1)完成句子
①他的兴趣范围广泛,从下象棋到集邮。
His interests
chess
.
答案:range from;to collecting stamps
②这些玩具娃娃的价格从 25 到 75 美元不等。
Prices of the dolls
.
答案:range from $25 to $75
century,because so many amazing discoveries were made in such a large number of
scientific areas.
Albert Einstein discovered “E= mc2”when he was taking 3. baby.
目录退出
donate...to...向……捐献…… donation n.捐赠物;捐赠;赠送 make a donation(of sth.)to sb./sth.向……捐赠 All donations will be gratefully received. 我们将十分感激地接受所有的捐赠。
目录退出
目录退出
correspond with sb.和某人通信 correspond to/with 与某事物相一致 correspond to sth.与……相当;相称;相等
完成句子
①大学毕业后,你一直和他通信吗?
Have you been university? 答案:corresponding with him ②这些货物与我的订货单不符。
——她是一个伟大的母亲。contribute“贡献”;donate“捐献”;subscribe“牺
牲”;sell“卖”。

2019-2020学年英语北师大版选修7习题：20.3 Lesson 3 Scientific B

姓名，年级：时间：Lesson3 Scientific Breakthroughs一、单词拼写1He was faced with the d of whether or not to return to his country。

答案dilemma2The children were s into four groups.答案split3The (总理) deals with important affairs of the state。

答案premier4The policeman had to w with the case in order to catch the criminal. 答案wrestle5It’s too early to know the （结果） of her illness.答案outcome二、完成句子1学生的年龄在19岁到22岁之间.The students’ ages 19 22 years old。

答案range from；to2他们拥有两套房子，另外还有一条船。

They own two houses， a boat。

答案not to mention3他现在仍在同他的前任女友通信。

He is still his former girlfriend。

答案corresponding with4我正要锁门,这时天开始下雨了。

I lock the door it began to rain.5她下决心要让儿子改掉坏习惯。

She decided to her son his bad habit.；of三、阅读理解A(导学号59260014)Airtight plastic bags can help farmers protect their harvests without the use of harmful chemicals。

These bags are designed to keep air out of crops in storage。