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课时作业9Lesson 3Scientific BreakthroughsⅠ.单词拼写1．He was in a________(困境) where he couldn't decide whether to accept or refuse the gift.2．You'd better________(捐赠) some food and money to the poor children.3．I often________(通信) with my old friends.4．Mr Green is watering flowers.________(与此同时)，Mrs Green is cooking breakfast.5．The band________(分离) up in the 1970s.6．He is an________(坦率的) man.7．The________(薄雾) was floating over the mountain.8．The man was________(治愈) of his heart attack.9．He applied for a________(专利)．10．The________(结果) of the election was announced yesterday.★答案★1．dilemma 2.donate 3.correspond 4.Meanwhile5．split 6.outspoken7.mist8.cured9.patent10．outcomeⅡ.用适当的介、副词填空1．The audience ranged from adults________children.2．Mr white corresponded________his wife once in a while.3．Have you figured________this problem?4．The tough man wrestled________the snowstorm.5．Her father was dedicated________finding a way out.6．He took away my basket________mistake.7．The excellent players were singled________to compete in the game.8．There is no doubt________his honesty and kindness.9．He is fond of participating ________the voluntary work.10．He based his opinion________facts.★答案★与解析1．to range from...to 从……到……范围变化。
Unit 20 NEW FRONTIERSLesson 3 Scientific Breakthroughs教学设计3Teaching aims1. Words and phrases: frontier, telescope, atom, microscope, astronomy, bacteria, radium, solar, crew, panel, institute, compute, sense, impact, ethical, radioactive, polonium, seminar, life-sized, screen, handy, biochemistry, theoretically, robot, database, meanwhile, source, exploration, barbershop,artificial, intelligence, light year, search engine, solar system, take over, carry out, data processing, the International Space Station, click into, in terms of.2. Listening and discussion about something of science.3. To read the text and study the language points.Teaching difficulties & important points1. Listening and discussion about something of science.2. To read the text and study the language points.Teaching proceduresStep 1 RevisionReview the new words of Lesson 2 and have a diction:present, category, autonomous, programmer, in advance, creator, give away, take over, official, colleague, rescue, exit, disconnect, original, operational, instructor.Step 2 Learn the new words of Lesson 31. Ask some students to read the new words first and correct their pronunciation.dilemma, microscope, procedure, organ, donate, correspond, meanwhile, split, premier, outspoken, telescope, mist, outcome, cure, navy, wrestle, circuit, microwave, patent, jet.2. Play the tape and have them read after the tape.3. Give them a few minutes to read the new words freely, tell the m if they can’t read the words, and encourage them to ask the teacher.Step 3 Reading1. D iscuss the pictures and talk about the scientists’ major discoveries.a) Albert Einstein: Among the several important discoveries made in his life, the greatest is the creation of his famous Theory of Relativity. He also discovered famous mathematical statement e=mc (energy equals mass times the speed of light squared).b) Edwin Hubble: He proved that nebulae were galaxies themselves.c) Alexander Fleming: A young bacteriologist when an accidental discovery led to one of the great developments of modern medicine.2. Do exercise by themselves.Try to match the discoveries with how they were discovered.The equation e=mc Scientists works together as a teamPenicillin There was a lucky accidentThe first computer A scientist did research for many yearsOther galaxies A scientist was inspired3. Let the students look at Reading Strategies and check their answers to exercise.The equation e=mc2Scientists works together as a teamPenicillin There was a lucky accidentThe first computer A scientist did research for many yearsOther galaxies A scientist was inspiredStrategy (1): First red the next to get the general idea. Go through the whole text, don’t worry about some new word, you don’t need to understand every word exactly. Just work out the subject and the main idea.Strategy (2): Read the questions/ statements and identify important words.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。
Section Ⅲ Lesson 3 Scientific Breakthroughs一、单词拼写1.What we could do is to d some money to them.答案：donate2.I hope to go to the medical school.In the m ,I am going to study chemistry.答案：meanwhile3.His teacher c him of his bad habits.答案：cured4.She was in a d whether to stay at school or get a job.答案：dilemma5.What’s the p for opening a savings account?答案：procedure6.His o remarks made boss angry.答案：outspoken7.He likes looking at the stars through a t .答案：telescope8.He got a p for this invention.答案：patent9.These cracks can be seen under a m .答案：microscope10.The patient’s immune system would reject the transplanted (器官).答案：organ11.We share a house and (分开) all the bills.答案：split12.He is studying in an America’s (最重要的) medical school. 答案：premier13.Early morning (薄雾) will soon clear.答案：mist14.(结果) is important,but process is more important.答案：Outcome15.He is an officer in the (海军).答案：navy16.The police officer (摔跤) him to the ground.答案：wrestled二、用方框内所给单词或短语的正确形式完成句子1.Public interest centers on the of next week’s election.答案：outcome2.His words made him an easy target for the opposite.答案：outspokenst year he $1,000 to cancer research.答案：donated4.I went to college.,all my friends got well-paid jobs.答案：Meanwhile5.He is applying for a for his new invention.答案：patent6.World peace is of importance to the whole world.答案：premier7.What is the for applying for a patent?答案：procedure8.I am with an American schoolboy.答案：corresponding9.A certain for this disease hasn’t been found yet.答案：cure10.The temperature between 30 and 40 degrees centigrade. 答案：ranges11.There was a rebellion in that country.The rebels soon the capital city.答案：took over12.It is hard to get a plane ticket at this time,so you’d better book one .答案：in advance13.This news is only between us two,so you shouldn’t it .答案：give;away14.The electricity suddenly last night and children burst out screaming.答案：went out15.She spoke so fast that I really couldn’t what she said at the meeting.答案：figure out三、单句语法填空1.If you had to choose the single most important discovery of the 20th century,you (have) a real dilemma on your hands.答案：would have2.Medical advances ranged discovering the causes of diseased under microscopes surgical procedures (replace) diseased organs donated ones.答案：from;to;replacing;withmunications changed with the introduction of mobile phones and the way we correspond went writing letters emailing. 答案：from;to4.The atom was (previous) thought to be the smallest particle of matter in the universe.答案：previously5.In the summer of 1905,this outspoken young man (rock) his one-year-old baby when he was suddenly inspired.答案：was rocking6.Einstein had already become world-famous a young ex-lawyer,(return) from the First World War,started work in California.答案：when;returning7.(use)the most high-powered telescope of the time,he began the long,slow process of (explore) the galaxy.答案：Using;exploring8.He double-checked and saw a blue mould in the dish around the bacteria had been destroyed.答案：which9.It used so much energy when it was turned ,the lights in the local town went out!答案：that;on10.There is no doubt about it.Without the breakthroughs of these pioneers in science and technology,lucky or planned,the world as we know it today (be) a completely different place. 答案：whether;would have been四、阅读理解导学号39504026A world-famous Canadian author,Margaret Atwood,has created the world’s first long-distance signing device(装置),the LongPen.After many tiring book-signing tours from city to city,Atwood thought there must be a better way to do them.She hired some technical experts and started her own company in 2020.Together they designed the LongPen.Here’s how it works:The author writes a personal message and signature on a computer tablet(手写板) using a special pen.On the receiving end,in another city,a robotic arm fitted with a regular pen signs thebook.The author and fan can talk with each other via webcams(网络摄像机)and computer screens.Work on the LongPen began in Atwood’s basement(地下室).At first,they had no idea it would be as hard as it turned out to be.The device went through several versions,including one that actually had smoke coming out of it.The inventing finally completed,test runs were made in Ottawa,and the LongPen was officially launched at the 2020 London Book Fair.From here,Atwood conducted two transatlantic book signings of her latest book for fans in Toronto and New York City.The LongPen produces a unique signature each time because it copies the movement of the author in real time.It has several other potential applications.It could increase credit card security and allow people to sign contracts from another province.The video exchange between signer and receiver can be recorded on DVD for proof when legal documents are used.“It’s really fun,”said the owner of a bookstore,who was present for one of the test runs.“Obviously you can’t shake hands with the author,but there are chances for a connection that you don’t get from a regular book signing.”The response to the invention hasn’t been all favorable.Atwood has received criticism from authors who think she’s trying to end booktours.But she said,“It will be possible to go to places that you never got sent to before because the publishers couldn’t afford it.”1.Why did Atwood decide to invent the LongPen?A.To set up her own company.B.To win herself greater popularity.C.To write her books in a new way.D.To make book signings less tiring.答案：D解析：细节理解题。
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 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.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。
