高中英语Unit20lesson3《ScientificBreakthroughs》教案北师大版选修7
安徽省滁州二中高二英语《Unit 20 New Frontiers Lesson 3 Scientific Breakthroughs》教案
安徽省滁州二中高二英语《Unit 20 New Frontiers Lesson 3Scientific Breakthroughs》教案Teaching aims1.words and phrases：nguage points in the text3.reading strategies4.exercises about text5.vocabulary:phrasal verbs and compound wordsTeaching time： Two 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 minutes 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.in a dilemma处于困境2.have sth on your hands手头有某事待处理3. make a breakthrough/discovery 作出突破、发现4.not to mention更不用说5. range from…to…在…范围内变化6.replace…with…用…代替…7. donate sth. to sb./sth. (for sb.) 捐赠给(为某人捐...) n. make a donation to 向...捐助8. correspond with sb.与某人通信 correspond with sth. 与...一致 correspond to 相当于9. meanwhile=in the meanwhile/meantime=at the same time与此同时,在此期间 adv.10. single out挑出、选出 pick out认真挑选 sort out使整齐、整理;挑出11. not even 甚至连…都不 12. ex-lawyer n.前律师 outspoken adj.直言的high-powered adj.功率大的 far-reaching adj.影响深远的 double-check v.复核/复查mass-produce v.大批量生产13. be previously thought to be... 之前被认为是14. cn.用单数 outcome of …的结果 results(比赛、考试、年度)结果,成绩,业绩15.cure sb. of sth. 治愈某人的疾病；矫正某人不良的行为a cure for 治疗.....的方法 P25treat sb. for sth.“为某人医治，治疗”。
U20Lesson3ScientificBreakthroughs精品PPT课件
important discovery of the 20th century. • Part 2 (2-8) • the brief introductions of five pioneers of the
20th century. • Part 3 (9) • Without the breakthroughs of these
• by
• The room measures 15 feet by 20 (feet).
• weigh vi. The box weighs ten pounds.
• The traffic rule says young children under the age of four and _D_ less than 40 pounds must be in a child safety seat.
pioneers, the world would be quite different.
The scientists and their breakthroughs
who
what
when
Albert Einstein E=mc²
1905
Edwin Hubble other galaxies After the First World War
vocabulary
Lesson 3 unit20
Do you know the major discoveries of the scientists in the pictures?
Albert Einstein was
considered the greatest scientist of the 20th century and one of the greatest of all time. His greatest discovery is the creation of his famous Albert Einstein
9. The first computer project failed to meet its original goal. T 10. The first computer was extremely difficult to program. NI 11. The scientists who discovered microwaves invented microwave ovens. T 12. Today, it is possible to donate your heart to hospital when you die. T
猫 眼 星 云
惊恐的“双眼”
完全曝光土星环
星 系 之 心
棒旋星云
Alexander Fleming
Scottish biochemist On February 14, 1929 Fleming discovered Penicillin, when an accidental discovery led to one of the great developments of modern medicine.
Unit20Lesson3ScientificBreakthroughs短语详解
【词汇讲解】Unit 20Lesson 3 Scientific Breakthroughs短语详解考点1 according to (p24)【要点提示】据……所说；根据；按照；取决于；据……所载According to George, she’s a great player.据乔治所说，她是一个优秀的运动员。
According to our records payment of $56 is now overdue.根据我们的记录，有56美元的款项逾期未付。
We are paid according to how much work we do.我们的工资随工作量而定。
Please arrange the books according to size.请按大小将书分类。
We will go or we won't, according to circumstances.我们或去或不去，都将视情况而定。
According to her, grandfather called at noon.据她说,祖父在中午打来过电话。
【思维拓展】according as“视乎”，有depending及according to whether的意味，是连词词组，其后接从句。
We will play golf or stay home according as the weather is good or bad.我们是去打高尔夫球还是呆在家里取决于天气是好是坏。
You will be able to do it according as you have the courage.只要你有勇气，你就能做这件事。
【连线高考】①According to statistics, a man is more than twice as likely to die of skin cancer _________ a woman. [2009江西]A. thanB. suchC. soD. as【答案与解析】 D 本题考查比较级的结构，as …as , 注意句中的more than 只是修饰twice。
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
高中英语Unit20NewFrontiersLesson3ScientificBreakthroughs教案北师大版选修720171027119
Unit 20 New Frontiers Lesson 3 Scientific Breakthroughs精美句子1、善思则能“从无字句处读书”。
读沙漠，读出了它坦荡豪放的胸怀；读太阳，读出了它普照万物的无私；读春雨，读出了它润物无声的柔情。
读大海，读出了它气势磅礴的豪情。
读石灰，读出了它粉身碎骨不变色的清白。
2、幸福幸福是“临行密密缝，意恐迟迟归”的牵挂；幸福是“春种一粒粟，秋收千颗子”的收获. 幸福是“采菊东篱下，悠然见南山”的闲适；幸福是“奇闻共欣赏，疑义相与析”的愉悦。
幸福是“随风潜入夜，润物细无声”的奉献；幸福是“夜来风雨声，花落知多少”的恬淡。
幸福是“零落成泥碾作尘，只有香如故”的圣洁。
幸福是“壮志饥餐胡虏肉，笑谈渴饮匈奴血”的豪壮。
幸福是“先天下之忧而忧，后天下之乐而乐”的胸怀。
幸福是“人生自古谁无死，留取丹心照汗青”的气节。
3、大自然的语言丰富多彩：从秋叶的飘零中，我们读出了季节的变换；从归雁的行列中，我读出了集体的力量；从冰雪的消融中，我们读出了春天的脚步；从穿石的滴水中，我们读出了坚持的可贵；从蜂蜜的浓香中，我们读出了勤劳的甜美。
4、成功与失败种子，如果害怕埋没，那它永远不能发芽。
鲜花，如果害怕凋谢，那它永远不能开放。
矿石，如果害怕焚烧（熔炉），那它永远不能成钢（炼成金子）。
蜡烛，如果害怕熄灭（燃烧），那它永远不能发光。
航船，如果害怕风浪，那它永远不能到达彼岸。
5、墙角的花，当你孤芳自赏时，天地便小了。
井底的蛙，当你自我欢唱时，视野便窄了。
笼中的鸟，当你安于供养时，自由便没了。
山中的石！当你背靠群峰时，意志就坚了。
水中的萍！当你随波逐流后，根基就没了。
空中的鸟！当你展翅蓝天中，宇宙就大了。
空中的雁！当你离开队伍时，危险就大了。
地下的煤！你燃烧自己后，贡献就大了6、朋友是什么？朋友是快乐日子里的一把吉它，尽情地为你弹奏生活的愉悦；朋友是忧伤日子里的一股春风，轻轻地为你拂去心中的愁云。
Unit20Lesson3ScientificBreakthroughs第一课时单词聚焦
【词汇讲解】Unit 20Lesson 3 Scientific Breakthroughs 第一课时单词聚焦考点1 dilemma【要点提示】n. 进退两难的局面；困难的选择I am in a dilemma about this job offer.对于提供的这份工作我不知道是接受还是不接受。
Mary is facing the dilemma of obeying her father or marrying the man she loves.是服从父亲还是嫁给自己所爱的人是玛丽面临着的难题。
Juvenile drug abuse is the great dilemma of the 1990's.青少年吸毒的陋习是90年代的大问题。
It's understandable that she veered from her former intention, considering her dilemma.考虑到她的困境，她改变初衷是可以理解的。
【连线高考】Ph.D. students who haven't completed their papers by the time their fellowships are finished will face a difficult________.A. dilemmaB. diplomaC. breakthroughD. term【答案与解析】 A 哲学博士生们在研究生职位期限终止时还没有完成其论文就要面临一种进退两难的境地。
dilemma “尴尬的境地”；diploma“文凭”；breakthrough “突破”；term “学期”。
考点2 procedure【要点提示】n. 程序；手续The new work procedure is a great improvement on / over the old one.新工序比起老工序来是一个巨大的改善They followed the usual procedure.他们遵循通常的程序。
Unit20Lesson3ScientificBreakthroughs句型归纳
【句型讲解】Unit 20Lesson 3 Scientific Breakthroughs句型归纳考点1Although it is impossible to choose the most important discovery, it is possible to single out a few pioneers of the 20th century. (p24)虽然不可能挑选出最重要的发现，但是挑选出20世纪几个先驱还是有可能的。
【要点提示】although是从属连词，引导让步状语从句，表示“虽然；尽管；然而”。
We were not tired although we had worked all day.尽管工作了一天，但我们并不累。
Although he was ill, he worked hard.他虽然生病，但仍努力工作。
Although he is young, he knows a lot.尽管他很年轻，但是他知道很多东西。
I did not know that then, although I learned it later.当时我不知道那件事，但我后来知道了。
注意：按照英语习惯，although不能与but 连用，如不可说although…, but…。
但为了加强前后两句的对比意义，在主句前可以加yet。
Although he had been ill for a month, yet he was never absent from school.尽管他长了一个月的病，但是他没有请一天假。
【用法辨析】although , though这两个词都作从属连词，引导让步状语从句，可以通用，但although比though的语气强，也比较正式。
还有几点不同：①though可以用于倒装句,等于as,但although不可以；②though可以与even和as连用,构成短语even though, as though, 分别等于even if, as if，而although不可以；③当置于主句后,从句表示“不过……”；“可是……”时,只用though,不用although。
Unit20Lesson3ScientificBreakthroughs第二课时单词聚焦
【词汇讲解】Unit 20Lesson 3 Scientific Breakthroughs 第二课时单词聚焦考点1 cure【要点提示】I. vt.治好；使恢复（健康）；使痊愈This medicine will cure your headache.这种药会治好你的头痛病。
She was cured of her disease.她的痛被治好了。
After a few days’ rest , she has cured her health.休息几天后，她已恢复健康。
They haven’t cured from the shock yet.他们还未从那次打击中恢复过来。
When I left hospital I was completely cured.我出院时已经彻底痊愈了。
II. n. 药；方法；治愈；痊愈；疗程There is no cure for the common cold.目前没有治愈感冒的良药。
Aspirin is a wonderful cure for colds.阿斯匹林是治感冒的妙药。
The cats proved to be a good cure for our mouse problem.最终证实猫是我们解决老鼠问题的好方法。
【连线高考】If I take this medicine twice a day, it should ______ my cold. [2011合肥质检]A. recoverB. healC. restoreD. cure【答案与解析】D 句意：假如这种药我一天吃两次，它就可以治愈我的感冒。
cure治疗，尤指用药物治愈疾病；restore指（使）恢复健康或使正常；heal着重指治好外伤或烧伤后的患部，使伤口愈合，不用于治感冒等疾病；recover恢复，不合句意。
考点2 fade【要点提示】I. vi. 消失；枯萎；(声音等)减弱下去；褪色Hopes of peace settlement are beginning to fade .和平解决的希望正在逐渐消失。
高中英语Unit20lesson3《ScientificBreakthroughs》教案2北师大版选修7
Unit 20 Lesson 3Compound Words复合词1．把两个或两个以上的词结合在一起构成新词的方法叫复合法。
用复合法构成的词叫复合词。
复合词种类繁多，从词性上看有复合介词，复合连词，复合副词，复合代词，复合数词等，而数量最多的是复合名词，其实是复合形容词，再次是复合动词。
2．复合名词（1）名词+名词Lipstick,classroom,newspaper,workshop,bookstore,bloodtest（2）形容词+名词Highway,dark glasses, easy chair,broadcast,blackboard,freeway,mainland,newcomer,gentleman（3）副词+名词Overwork, upgrade,outhouse,outcomer,overcoat,afternoon,inland（4）动词+名词Chopstick,pickpocket,breakwind（5）动词-ing+名词Readingroom, sleepig-pill, dining-car,swimming-pool（6）名词+动词Snowfall,waterway（7）动词+副词Break-down,break-through,get-together,breakup（8）副词+动词Output,onflow,downfall（9）名词+介词+名词Son-in-law,father-in-law3．合成形容词（1）名词+形容词World-famous,homesick,snow-white,worldwide（2）形容词+形容词Light-yellow,red-hot（3）现在分词+形容词Steaming hot,cold biting（4）名词+现在分词Peace-loving,man-eating,earth-shaking,fun-loving（5）名词+过去分词Man-made,hand-made,snow-covered（6）形容词+现在分词Good-looking,easygoing,hard-working（7）形容词+过去分词Half-baked,hard-won（8）名词+名词+-edChicken-hearted,iron-hearted（9）形容词+名词+-edShort-sighted,warm-hearted,kind-hearted,blue-eyed,simple-minded,cold-blooded （10）形容词+名词New-type,everyday（11）动词+名词breakneck（12）副词+形容词evergreen（13）数词+名词+形容词Seven-year-old,eight-foot-high,three-meter-wide（14）副词+现在分词Hardworking,far-seeing（15）副词+过去分词Well-written, well-known（16）副词+名词Outdoor,indoor,underground（17）数词+名词+-edFour-footed, two-faced,three cornered（18）数词+名词400-merer,second-hand4．复合动词（1）名词+动词Sunbathe,sleep-walk（2）形容词+动词White-wash,blacklist（3）副/介词+动词Understand,overcome,overeat,underline 5．合成副词（1）名词+副词Head-on（2）名词+名词sideways（3）形容词+名词meanwhile（4）副/介词+名词Inside,downstairs,downtown,outdoors。
北师大版高中英语选修七Unit 20《Lesson 3 Scientific Breakthroughs》教案 2
Unit 20 Lesson 3 Scientific Breakthroughs Teaching Aims:1.To use proper reading strategies for different tasks.2.To improve practical reading skills and ability3.To get familiar with scientific breakthroughs in the last centuryTeaching difficulties: learn to use reading strategiesTeaching Aids: computerTeaching procedures:Ⅰ. Warming up: quizUse some descriptions and pictures ，ask students to guess who the great scientist is.(由此引入本课话题：scientists，and scientific breakthroughs)Ⅱ. Reading Practice1.reading for general idea(1.) Show students the reading strategy for general idea. Then students read the text and do some exercises.(2) Ex2.Try to match the discoveries with how they were discovered？(3) multiple choice: The purpose of this article is ____.A. the introduction of the Wright BrothersB. the introduction of the process of scientific breakthroughC. introduction of the major scientific discoveries in the 20th centuryD. the contributions scientists made to the world(4) books closed. Match the pioneers with the deeds2. reading for specific information(1) show the reading strategies and let students work in groups to do some T or F exercise.(2) While Albert Einstein was rocking his one-year-old baby，he _______.A. was aware of recent scientific developments.B. thought over Marie Curie’s research.C. he showed that not even time，mass or length are constant.D. came up with the famous “ theory of relativity”(让学生思考：各个选项是否来自课本，干扰项是如何设置来迷惑人的，are the reading strategies useful and effective？)(让学生在探索中学会运用阅读技巧获取和处理信息，学会合作学习)Ⅳ. after readingTask 1. Vocabulary: Exs 5 in the text book and ask students to find some useful expression in the text.Task 2. Discussion: talk about scientific breakthroughs and their influence on our life。
北师大版高中英语选修七Unit 20《Lesson 3 Scientific Breakthroughs》课件 1
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
(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”。
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lesson 3 Scientific Breakthroughs
Teaching Aims:
1.To use proper reading strategies for different tasks.
2.To improve practical reading skills and ability
3.To get familiar with scientific breakthroughs in the last century
Teaching difficulties: learn to use reading strategies
Teaching Aids: computer
Teaching procedures:
Ⅰ. Warming up: quiz
Use some descriptions and pictures , ask students to guess who the great scientist is.
(由此引入本课话题：scientists, and scientific breakthroughs)
Ⅱ. Reading Practice
1.reading for general idea
(1.) Show students the reading strategy for general idea. Then students read the text and do some exercises.
(2) Ex2.Try to match the discoveries with how they were discovered?
(3) multiple choice: The purpose of this article is ____.
A.the introduction of the Wright Brothers
B.the introduction of the process of scientific breakthrough
C.introduction of the major scientific discoveries in the 20th century
D.the contributions scientists made to the world
（4）books closed. Match the pioneers with the deeds
2. reading for specific information
(1) show the reading strategies and let students work in groups to do some T or F exercise.
(2) While Albert Einstein was rocking his one-year-old baby, he _______.
A.was aware of recent scientific developments.
B.thought over Marie Curie’s research.
C.he showed that not even time, mass or length are constant.
D.came up with the famous “ theory of relativity”
(让学生思考：各个选项是否来自课本，干扰项是如何设置来迷惑人的，are the reading strategies useful and effective?)
(让学生在探索中学会运用阅读技巧获取和处理信息，学会合作学习)
Ⅳ. after reading
Task 1. Vocabulary: Exs 5 in the text book and ask students to find some useful expression in the text.
Task 2. Discussion: talk about scientific breakthroughs and their influence on our life。