2012届高三英语一轮复习教案Unit16Scientistsatwork(旧人教版第一册)

课时作业十六SBⅠUnit 16 Scientists at workⅠ.单项填空1．________a certain doubt among the people as to the practical value of the project.A．It has B．They haveC．It remains D．There remains2．2011·湖南衡南模拟We don’t doubt________th e people in Beichuan County will recover from the disaster soon and rebuild their homes better than before.A．that B．ifC．what D．whether3．Nigel caught up with me and it was________great comfort to me to have________company as it is dangerous to walk alone at midnight.A．the；the B．a；aC．a；/ D．/；/4．The number of foreign students attending Chinese universities________rising steadily since 1997.A．is B．areC．has been D．have been5．Without proper lessons，you could________a lot of bad habits when playing the piano.A．give up B．catch upC．keep up D．pick up6．Whether he will succeed or not lies in the use he________the chance.A．makes the use of B．has madeC．made of D．makes of7．Make full use of your time ________you can achieve what you desire.A．so B．orC．but D．and8．2010·云南师大附中月考The________，I think，he draw from his simple experiment is not worth considering.A．conclusion B．effectC．attention D．decision9．It is no good trying to break into the door made of iron and steel，because it won’t________.A．work B．useC．practice D．affect10．2010·河北保定一中阶段测试This is your last chance.You may as well________full advantage of it.A．make B．getC．take D．have11．—It is reported that about 50 pupils lose their lives in the traffic accident.—________news came as________shock to me.A．The；a B．The；theC．A；a D．A；the12．Don’t forget to________the windows before going to bed.There’s going to be a storm tonight.A．clean B．openC．keep D．fasten13．This material________，so be careful when you wear it.A．is torn easily B．is torn easyC．tears easily D．tears easy14．________feels so nice to walk in this cool and quiet park on such a hot day!A．This B．ThatC．What D．It15．—Where is Frank?—He is________his planting done in the garden before the rain comes.A．taking B．hopingC．getting D．givingⅡ.阅读理解When I was very young I remember playing with the girl next door，making mud cakes.We lived in a small house behind the high school in Alton.One day my dad took our pictures，mud cakes and all.My dad took a lot of pictures with his blue Kodak camera.He developed the pictures himself in our basement.I remember helping him.All the lights had to be turned out while we transferred the negatives from one pan to the other.It was a lot of fun for a small boy.My dad often came home from work for lunch.I suppose it was a way to save money since it was during the depression.While he was eating lunch one day I drove nails into three of his tires.Not too long after he left to return to work he called home saying that he had just pulled into a service station with a flat tire，only to find out he had three flat tires.When my dad questioned me about the flat tires I said，“When you had a flat tire last time，and you were pumping it up with air，and I wanted to help，you said the next time you had a flat tire you would let me pump it up.”These memories are from my short life before I was in the first grade.I know this for sure，because one day right before my sixth birthday my mother told me that I was going to sleep with my dad that night.She said we were going away.I didn’t know what all that meant.I remember my dad breathed deeply in his sleep and snored a little.The next day we moved in with my grandparents in another town.I missed doing these things with my dad.1．We know from the passage that the author’s dad________.A．was quite strict with him B．was very kind to himC．didn’t love him enough D．liked to play with him2．Why did the author drive nails into the tires of his father’s car?A．He hated his father.B．He didn’t want his father to leave him alone.C．He wanted to play a trick on his father.D．He wanted to try pumping.3．What could be the reason why the author moved to live in another town?A．His father didn’t like him anymore.B．His father found another job in that town.C．His parents got divorced.D．His father couldn’t support the family any more.4．The purpose of the author is to tell us________.A．the happy times he had with his fatherB．how happy a childhood he hadC．he hated his parents’ divorceD．the r ole a father played in his son’s lifeParents fear they are putting too much pressure on their daughters to reach their academic potential，the president of a girls’schools body has said.Incoming Girls School Association head Jill Berry said parents were worried about achieving a balance between school achievement and happiness.Mrs Berry also said that girls could put themselves under a lot of pressure.A poll of 1,000 parents surveyed for the association said their top concern was their daughter’s education.Girls tend to outperform boys in all stages of their education，and this can lead schools to assume all girls will do well.Mrs Berry said：“There is no doubt that many mothers and fathers are worried about getting the balance right between their daughters realizing their academic potential while at the same time being happy and safe.” Mrs Berry said in her experience girls had very high expectations of themselves.“That’s a positive thing and we want them to aim high.But sometimes we do find a girl is being unrealistic in her aspirations or putting herself under unreaso nable pressure.It’s not necessarily pushy parents—it can come from the girls themselves.”But parents，too，wanted support to get the balance right between caring and being involved in their children’s lives and not being “helicopter parents”，she added.Women could be perfectionists and it was important to encourage girls to listen to their body，which could give warning signs of too much stress，she added.“Bright motivated high achieving girls with high expectations of themselves are more susceptible 易受影响的 to eating disorders，” Mrs Berry said.“But girls schools are usually very good at dealing with these things.”It was a teacher’s job to help girls “to have it all”，but to help them deal with inevitable disappointments as well，she said.5．Parents are worried that their daughters________.A．can’t put themselves under pressureB．can’t live a stressful lifeC．can’t achieve a balance between school work and happinessD．fall behind boys at school6．According to the poll，parents’ top concern was their daughter’s________.A．happiness B．safetyC．education D．health7．Mrs Berry believes that________.A．girls’pressure mainly comes from their parentsB．it’s not necessary for girls to aim highC．girls who aim high usually end up disappointedD．girls’pressure largel y comes from themselves8．The underlined word “outperform” probably means________.A．get along well with B．fall behindC．do better than D．compete againstⅢ.短文改错2010－2011·成都外国语学校期中考试I often quarrel about my mother over whether I can watch1.________TV after school.She holds view that senior three students2.________have to make fully use of every minute to work hard at3.________their lessons.It seems to me that once I am allowed to4.________do that，I’ll unable to control myself and forget all5.________about my study.She also thinks it is bad for my eye.6.________And I really can’t accept her ideas.In my opinion，7.________watch TV can refresh my mind after a day’s hard work.8.________Besides，it is important for us students to know what has happened9.________ at home and at abroad.Thus，we shouldn’t be forbidden to watch TV.10.________Ⅰ.单项填空1．解析：句意为：关于那项工程的实用价值，人们还是心存某种疑虑。

《Scientists at work》高中英语教案第一章：引言1.1 教学目标了解科学家的日常工作学习相关词汇和表达方式1.2 教学内容介绍科学家的工作环境和日常任务讨论科学家的目标和动机1.3 教学步骤1.3.1 导入向学生提问：“你们对科学家的工作有什么了解？”引导学生分享他们对科学家的印象和认识1.3.2 新课内容使用图片、视频或实物展示科学家的工作环境和日常任务讲解相关词汇和表达方式，如“实验室”、“实验”、“研究”、“发现”等1.3.3 实践环节分组讨论：让学生分组讨论科学家的工作目标和动机分享讨论结果：每组选择一名代表分享他们的讨论成果1.4 作业布置要求学生课后查找一位科学家的资料，了解其工作内容和成就第二章：科学方法2.1 教学目标学习科学方法的基本步骤能够运用科学方法进行探究2.2 教学内容介绍科学方法的基本步骤：提出问题、收集数据、进行分析、得出结论讨论如何运用科学方法进行探究2.3 教学步骤2.3.1 导入向学生提问：“你们在生活中有没有用到过科学方法？”引导学生思考和分享他们的经历2.3.2 新课内容使用图片、视频或实物展示科学方法的基本步骤讲解如何运用科学方法进行探究，如观察、实验、调查等2.3.3 实践环节小组活动：让学生分组进行探究实验或调查，运用科学方法进行实践分享结果：每组选择一名代表分享他们的探究过程和结论2.4 作业布置要求学生课后思考并回答：“你觉得科学方法在学习和生活中有什么作用？”第三章：科学实验3.1 教学目标了解科学家进行实验的目的和方法学习实验相关词汇和表达方式3.2 教学内容介绍科学家进行实验的目的和方法讨论实验中常用的仪器和工具3.3 教学步骤3.3.1 导入向学生提问：“你们参加过科学实验吗？感觉如何？”引导学生分享他们的实验经历和感受3.3.2 新课内容使用图片、视频或实物展示科学家进行实验的场景讲解实验的目的和方法，如“验证假设”、“控制变量”等介绍实验中常用的仪器和工具，如“显微镜”、“天平”、“试管”等3.3.3 实践环节小组活动：让学生分组进行实验操作，体验科学家的工作分享结果：每组选择一名代表分享他们的实验过程和结论3.4 作业布置要求学生课后查找一个科学实验的资料，了解其目的和过程。

Period II Teaching material: Warming up & Listening ( including WB )II Teaching aims: 1. Get Ss to have a superficial knowledge of science2. To practise Ss’ listening abilityIII Teaching focus: Listening & SpeakingIV Teaching difficulty: How to improv e Ss’ listening and speaking abilitiesV Teaching procedure:Step 1 Greeting & Warming up1. Show Ss some pictures about the latest scientific achievement in the world or some pictures of famous scientists and hold a free talk with Ss so as to present some scientific terms.2. Get Ss to describe the four illustrations in groups then check the answers.3. Teacher goes on with the free talk with Ss in order to finish Q2&3 of warming up.Step 2 Listening ( textbook )1. Pre-listening1) Ask Ss the question “ W hat should we be careful with when doing an experiment? ”( Teacher should pay attention to the presentation of the new words in the listening text. )2. While-listening1) Get Ss to listen to the tape once and finish Part 1.2) Get Ss to listen to the tape twice and finish Part 2.3) Check the answers and play the tape for the fourth time if necessary.Step 3 Listening ( WB )1. Pre-listening1) Give a brief introduction of London.2. While-listening1) Get Ss to listen to the tape once and finish Part 2.2) Get Ss to listen to the tape again to finish Part 3.3) Get Ss to listen to the tape for the third time and finish Part 1.4) Check the answers and play the tape for the fourth time if necessary.Step 4 Assignment1. Preview Speaking.2. Review the new words.Period III Teaching material: Speaking & TalkingII Teaching aims: 1. To practise discussing and evaluating pros and cons.2. To arouse Ss’ safety conciousness.III Teaching focus: SpeakingIV Teaching difficulty: How to improve Ss’ speaking ability.V Teaching procedure:Step 1 Greeting & Warming up1. Get Ss to describe the illustration on Page 23.2. Get Ss to listen to the tape and answer the following question“ What are the advantages and disadvantages of the high-speed maglev train? ”Step 2 Speaking1. Get Ss to read the Useful Expressions by themselves and try to keep them in mind.2. Get Ss to discuss the advantages and disadvantages of Cloning, Nuclear energy, computer and Space flights in groups.3. Choose some Ss to present their own ideas about Cloning, Nuclear energy and Space flights.4. Choose “ Computer ” as the topic of the debate and hold a mini-debate in class.Step 3 Talking ( WB )1. Talk about the importance of safety.( free talk )2. Each group is in charge of one situation and get Ss to discuss Dos and Don’ts in groups.3. Choose about 2 representatives of each group to show their own ideas.Step 4 Assignment1. Pre-view ReadingPeriod III (Reading)I Teaching Aims: 1. Improve the Ss’ reading ability2.Read the passage and learn how the scientist Franklin found lighting and electricity are the same.II Important Point:Train the Ss to improve their reading comprehension.III Difficult Point:How to help the Ss understand the passage better.IV Teaching Methods:1. Question-and- answer method to make Ss interested in what they will learn.2. Fast reading to get the general idea of the text.3. Careful reading to answer some detailed questions.4. Individual, pair or group work to make every student work in class.V Procedures:Step1: Greetings and Revision1. Greet the whole class as usual.2. Check the homework..Step2:Discussion( Show an electric bulb)Ask the Ss: What is it? ( An electric bulb) . Then ask: Do you know who invented the electric bulb? (Edison).Then say :Yes. Edison was a great inventor. He invented many things. (Get the Ss to give some examples.) There are many famous scientistslike him all over the world. They made many important inventions in many fields. Do you know the names of some famous scientists? What are they famous for?Get the Ss to discuss in groups. Then collect their answers.Step3: Pre-readingOK. You’ve known much about some famous scientists and their important discoveries. But do you know something about Franklin? He discovered a secret. Do you know what the secret is? How did he discover the secret?Now let’s read the passage on Page 24 and try to find out the answers.Step4: ReadingLet the Ss read the passage quickly and answer the questions below.(1).Was the experiment done in June 1752 successful?(2) What did this experiment prove?(Give the Ss a few minutes, then discuss in pairs, check the answers with the whole class.) Then get the Ss to read it carefully and do Post-reading Ex.1 True or False and Multiple choice on the Best Design.(Let them do alone first, then check the answers.) And then play thetape ,let the Ss listen and follow. Do Post-reading Ex.3.Step5:Reading aloud and ConsolidationPlay the tape for the Ss to listen and follow. Get them to pay attention to their pronunciation and intonation . After that ,get the Ss to read the text aloud. Then get them to look at the three questions on Page25 Ex.2. Go through the questions first, then let them discuss in groups. After a few minutes, get them to talk about their ideas.Step6: Summary and HomeworkIn this class, we’ve read a passage about Franklin’s famous kite experiment and in his experiment he proved that the lightning and electricity were the same. After class, read the passage again and try to retell it.Period IV (Reading)I Aims:1.Learn and master the following words ,phrases and sentence patterns:Words: conduct, charge, shock, prove, tear, fasten, explain, appear…Phrases: do an experiment, a great deal of, tie…to, stop…fromSentence Patterns: Having realized that I could use…,I decided to….It is good (for sb)to do something.2.Deal with some difficult sentences.II Important point and difficult point:How to make the Ss master the useful words ,expressions and sentence patterns.III Procedures:Step1:RevisionReview the text by retelling it.Step2:Deal with some difficult sentencesLet the Ss to find out some difficult sentences they don’t understand first, then let them solve by themselves. The teacher gives some help when necessarye.g 1.Benjamim Franklin conducted a number of experiments [in which he showed (what electricity is)] 定语从句宾语从句一般来说，从句的动词时态与主句的动词时态保持一致，也就是说，如果主句中用过去时，从句一般也用过去时。

高一英语下：Unit 16 Scientists at work教案1教学示例（一）I. Teaching aims:Talk about science and scientists.learn how to give instructions.Similar dialogue presentation with new words and expressions u sed withinII. Teaching aids: tape recorder, pictures, slidesStep I Warming upask Ss: What can you see in pictures? What are they doing now? do you like do some experimentation in the lab? Is it dang erous?What are the names of the school subjects in which you study sc iences? (physics, chemistry , biology)What English words do you think of for each subject of science?(physics, chemistry , biology)Which experimentation do you like? Why?Give an example of what you learn about for each field of scienc e.1. In chemistry we learn about the way different liquids and mat erials react with each other. For example, if you put a piece of m etal into a glass containing a strong acid, it will dissolve.2. In physics we learn about the law of the universe, for example about Newton and the reason why all things on earth fall down.3. In biology we learn about life on earth, for example by looking at the structure of cells)2. Pair worklet Ss work in groups, and what do you need when you do you e xperimentation in the chemistry lab? Find out the things and tell the reasons.glasses bandage glovesrespirator gas mask scissorsStep II. Listeningsay to S： let us listen to a dialogue. In the dialogue, you will hear a teacher gives instructions to a group of students how to behave in a science lab.2. let Ss listen carefully and remember the safety instructions, and complete the exercise in the book.3. play the tape twice or more, and check the answers with the cl ass.Step III. Speaking1. show the picture of high-speed maglev train and ask Ss: Do y ou know this? It is a high-speed maglev train, in Chinese “高速悬浮磁列车” .T ask: what do you think it is helpful for people? why?T say: let’s read a dialogue and what they think of the train.let Ss read the dialogue in the book , explaining the word ‘high-speed maglev train’2. let Ss work in pairs, and discuss the advantages and disadvant ages of the cloning, nuclear energy , computers, space flights.2. That information can help students get ideas for advantages a nd disadvantages.Cloning: people that look the same; making people and animals which are in danger in the world; help people who lost an ear/ e ye/leg…Nuclear energy: doesn’t pollute the environment; very dangerous waste; make all the el ectricity society needs.Space flights: understand the outer space; very expensive; shows how far a country has developed.Step IV PracticeFinish the exercises “Listening”“Talking” in WorkbookHomeworkFinish off the exercise “Practising” in the Workbook.。

模块一：问题导入（适用于warming up及Listening 部分的导入）教师联系学生学习实际，引起学生对所学课程的关注，导入本课的主要话题--experiments in the lab。

1) Now you’ve been learning several subjects at school, such as maths, Chinese, English, physics, chemistry and so on. Which do you like best? Why?2) Do you like doing experiments in physics, chemistry and biology in the labs?3) Do you often do the experiments by yourselves or directed by your teachers? What has your teacher tell you to pay attention to when you enter the lab? What should you not do?导入模块二：图片导入（适用于Speaking部分的导入）教师展示两张有关磁悬浮列车的图片，问学生是否了解相关背景知识，引导学生结合自己原有的知识，探讨科学新发明的优点与弊端。

Science is a sword with two edges. When new inventions appeared, they brought benefits to human beings as well as trouble. Have you heard about the high-speed Maglev train from Shanghai to Pudong Airport? Let me show you something about it.教学过程导入模块三：教学过程重、难点指导Language points1．Why should students be careful smelling from bottle? 为什么学生在闻从瓶子里冒出来的气味时要小心？be careful of 注意...，当心...be careful about对于...谨慎be careful with 做...认真，注意...be careful not to do sth．当心不要...be careful as to + 从句对于...谨慎be careful in (doing) sth．在...方面谨慎be careful + 从句注意...，当心...be careful doing sth．做某事时要当心It is careless of sb. to do sth＝Sb．is careless to do sth某人做...太粗心了。

高三英语一轮复习 Unit16 Scientists at work教案人教大纲版⊕考纲要求：◆考纲规定的考试范围:重点单词与短语experiment; glove; gas; liquid; advantage; disadvantage; application; engine; nuclear; comfort; unnecessary; successful; conduct; lightning; thunderstorm; string; charge; electric; shock; prove; tear; frame; handkerchief; control; sharp; foot; fasten; sense; shampoo; skin; drug; activist; doubt; cruel; view; conclusion；a number of; a great number of; pick out; test on; bring out; try on; come up with; take care; dream of doing; build up; concentrate on; belong to; set free; end up句型Tie the corner of the handkerchief to the points of the cross and you will have a nice strong kite. 祈使句+and/then/or/otherwise+陈述句结构The string was getting charged. get +过去分词语法：合成词的合成规律◆复习本章要达到的目标1. 掌握experiment; advantage; comfort; unnecessary; successful; conduct; charge;electric; shock; prove; tear; control; sharp; fasten; sense; doubt; cruel; view;conclusion；a number of; a great number of; pick out; test on; bring out; try on; come up with; take care; dream of doing; build up; concentrate on; belong to; set free; end up等重点单词及短语的用法。

〖Unit 16 Scientists at work〗之小船创作Ⅰ.Teaching Goals:1.Think and talk about science and scientists.2.Learn how to give instructions.3.Study rules of word formation.4.Learn to write an argumentative essay.Ⅱ.Teaching Time:Four periodsⅢ.Background Information：1.Great Inventions伟大发明There have been many great inventions,things that changed the way we live.The first great invention was one that is still very important today—the wheel.This made it easier to carry heavy things and to travel long distances.For hundreds of years after that,there were few inventions that had as much effect as the wheel.Then in the early 1800's the world started to change.There was little unknown land in the world people did not have to explore much any more.They began to work instead to make life better.In the second half of the 19th century many great inventions were made.Among them were the camera,the electric light and the radio.These all became a big part of our life today.The first part of the 20th century saw more great inventions:the helicopter in 1909;moves with sound in 1926;the computer in 1928;and jet planes in 1930.This was also a time when a new material was first made.Nyloh came out in 1935.It changed the kind of clothes people had been wearing.The middle part of the 20th century brought new ways to help people get over diseases.They worked very well.They made people healthier and let them live longer lives.By the 1960's most people could expect to live at least 60.By this time most people had a very good life.Of course new inventions continued to be made.But man now had a desire to explore again.The world was known to man but the stars were not.Man began looking for ways to go into space.Russia made the first step.Then the United States took a step .Since then other countries,including China and Japan,have made theirsteps into space.In 1969 man took his biggest step away from the earth.Americans first walked on the moon.This is certainly just a beginning thought.New inventions will someday allow us to do things we have never dreamed of.2.The First Planes最早的飞机Steam engines were first to be tried in planes,but they were too heavy to be really useful.In 1884,such a machine was made,which consisted of a large number of wings one above the other and was driven by a steam engine.It is said that it rose for a moment off the ground.Another rose,but fell and was damaged.The real success of planes began only when petrol engine was used in planes.On December 17,1903,Orville Wright,an American,flew safely in a heavier-than-air machine for twelve seconds.He and his brother Wilbur had made a lot of experiments and had taken great trouble to study the art of flying in gliders before they tried to fly their planes.Orville came down safely after the first short flight,and on the same day the experiment was repeated three times.The longest of these flights lasted 59seconds.The speed of the plane was 35 miles an hour.The two brothers went on with their experiments after their first success,and in 1908 Wilbur gave some exhibitions of flying in France.All the people who saw the exhibitions were greatly surprised.Soon after the Wright brothers succeeded in their experiments,others followed in their footsteps.Louis Bleriot,a Frenchman,flew across the English Channel in 1909.Prizes were given for flights from place to petition began later.The plane improved more and more when people began to understand it better.In 1919 Sir John.Alcock and Sir Arthur Brown made the first flight across the Atlantic Ocean,and in the same year a plane flew from England to Australia.And then,the age of air travel arrived.The First PeriodTeaching Aims:1.Learn and master the following words:experiment gas flame wheel engine nuclear economy unnecessary comfort2.Do some listening.3.Do some speaking to talk about advantages anddisadvantages of many science discoveries.Teaching Important Points:1.Improve the students' listening ability.2.Improve the students' speaking ability by discussion,talks and making some dialogues.Teaching Difficult Points:1.How to finish the task of speaking.2.How to make dialogues correctly.Teaching Methods:1.Warming up to arouse the students' interest in science experiments.2.Listening activity to help the students go through the listening material.3.Making simple dialogues to practise the students' speaking ability.4.Individual,pair work or group work to make every student work in class.Teaching Aids:1.a tape recorder2.a projector and a computer for multimedia useTeaching Procedures:Step Ⅰ. GreetingsGreet the whole class as usual.Step Ⅱ. Lead-inT:Now you learn several subjects at school,such as,maths,Chinese,English,physics,chemistry and so on.Which do you like best?Why?Any volunteers?S1:I like English.My wish is to go abroad some day,so I like English and I want to learn it well.S2:I like biology.I want to become a scientist to explore the secrets of life.S3:I like physics.I'm interested in electricity.I want to know more about it and make more use of it to make our life better and better.S4:…T:When I was your age,I often did experiments at school.(Teacher writes the word“experiment”on the blackboard.)Do you know the meaning of the word “experiment”?“Experiment”means“trial made in order to prove the truth of an idea”.For example,I hope to find the answer to this problem by experiment.(Write the example on the blackboard.)Do you often do experiments?S5:Yes.We often do experiments inphysics,chemistry and biology in the labs or in the classroom.T:Do you do experiments by yourselves or do them with your teachers?S6:Most of the time,we make experiments by ourselves in the labs and we are directed by ourselves in the labs and we are directed by our teachers.In the classroom our teachers often show us some experiments.Step Ⅲ. Warming upT:OK.You have made many experiments.Can you describe some simple ones in English?Now,I'll show you three pictures on the screen.Please look at them carefully and then describe them.While doing this,the questions on the screen can help you.Please prepare this in pairs.(Teacher shows the questions and pictures on the screen.)No.1 No.2Picture 1Picture 2 Picture 3(Students begin to talk about the pictures and teacher goes among them and joins them.A few minutes later,teacher asks three students to describe them before class.)T:Are you ready?(Ss:Yes.)Who can give us a description of the first picture?S7:I'll try.This is an experiment in biology.From the picture,we can see two covers made of glass.The mouse dies after it's put into the first cover because of lack of oxygen while the mouse in the second cover is still living,because there is a plant in it.From this experiment,we know that green plants can produce oxygen.T:Very good.Now we'll go on to talk about the other two pictures.S8,the second picture.S8:…Sample writingIn picture 2,we can see an experiment of electrification by friction.In the experiment,the ruler after rubbed is put near the small pieces of paper.The pieces of paper are attracted onto the ruler.The experiment shows that electricity can be produced after two objects are rubbed.That's very easy and interesting.Picture 3 shows an experiment of the boiling of water in physics.In the picture,we can see the water in the test tube is turned into steam after heated.Then the steam meets the cold piece of glass and is turned into drops of water again.The experiment suggests that the form of water can be changed,but it can't turn into other things.Step Ⅳ. ListeningT:OK.When you are doing experiments,what should you pay attention to?Can you tell me your ideas?S9:We shouldn't enter the lab without a teacher.When we are there,listen to the teacher.S10:We should follow the teacher's instructions.Don't touch anything without the teacher's permission.Some of the instruments aredangerous.S11:…T:Very good.Next we'll do some listening practice.Let's see what Mrs Zhu talks about to the students.Now open your books to read the two exercises.In them,there are two new words:gas and flame.(Teacher writes them on the blackboard.)“Gas”means “substance like air and it can't be seen”；“flame”means“red or yellow burning gas and it can be seen.”Are you clear about the two words?S s:Yes.T:I'll give you three minutes to read the exercises to make sure you know what to do.(Three minutes later.)T:Now listen to the tape.For the first time,you just listen to get the general idea.When I play the tape for the second or third time,you'll try to finish your exercises.Are you clear?OK.Let's begin.Listen carefully.(Teacher plays the tape for the students to listen.When students are doing Ex.2,teacher shouldpause the tape for the students to write down their answers.At last,check the answers with the whole class.If necessary,play the tape once more.) Step Ⅴ. SpeakingT:Let's do some speaking.In this part,there are also a few new words.First let's learn them.Look at the screen.Teacher asks students to read the new words together,then gives them two minutes to remember the words.)T:There is a dialogue between two men in this part.They are talking about the advantages and disadvantages of a high-speed Maglev train from Shanghai to Pudong Airport.Now,please read thedialogue quickly and then find out its advantages and disadvantages.(After a while,teacher asks students to say the advantages and disadvantages.Meanwhile,teacher shows them on the screen.)T:Please pay attention to the usages of some Phrases.Please look at the blackboard.(Write them on the Bb.)in my opinion__________I think.In my opinion,he is clever.a waste of moneyDon't buy an expensive computer.I think it's a waste of money.make more/full/good use ofWe should make more use of every minute to study.(Teacher asks students to translate them into Chinese.)T:The work of scientists is often discussed.There are advantages and disadvantages to many science discoveries.Don't you think so?Now there are four inventions for us to discuss.While you are discussing them,the useful phrases on Page 18 can help you.(Students are divided into four groups.Each group talks about one invention.Teacher gives students enough time to prepare it and then asks them to give their ideas in front of the class.After that,teacher shows them on the screen.)Step Ⅵ.Summary and HomeworkT:Today we've talked about some pictures and known how to describe some simple experiments.We've also done some listening and speaking practice.Now we know how to discuss the advantages and disadvantages of some inventions.Meanwhile,we've learned some useful phrases.After class,remember the phrases and make a dialogue to talk about advantagesand disadvantages of some inventions,using the information learnt today.Class is over.Sample dialogueA:Today I read a piece of news in the newspaper.It says that another cow has been cloned in our country.B:Really?The technique is very useful.It can save some rare species.Many animals will not die out.A:Are there any other advantages?B:Yes.It can be used to increase the number of some kind of animal in a shorter period if this technique is widely used.But it is impossible to do so at present in any country.It's said that some parts of human body can also be cloned.A:This is useful in medicine.But if humans can be cloned,that will be terrible.The whole society will be confused if it is not used properly.B:I am sure that scientists will agree on that in the future.Step Ⅶ.The Design of the Writing on the BlackboardStep Ⅷ.Record after Teaching_____________________________________ _____________________________________ _____________________________________ _____________________________________。

高一英语 Unit16《Scientists at work第三课时》精品教案旧人教版第一册Teaching Aims:1.Review the words learnt in the last period and learn their different meanings by heart.2.Learn to guess the meaning of compounds.3.Learn to describe the two parts of some compounds.Teaching Important Points:1.Learn and master the different meanings of some verbs.2.Learn to guess the meaning of compounds and learn to describe some compounds.Teaching Difficult Points:1.How to describe the two parts of some compounds.2.How to guess the meaning of the compounds.Teaching Methods:1.Review method to consolidate what we've learnt.2.Practice to make the students learn the way of guessing compounds and describing them.3.Individual,pair or group work to make every student work in class.Teaching Aids:1.a slide projector2.a computer for multimedia useTeaching Procedures:Step Ⅰ.GreetingsGreet the whole class as usual.Step Ⅱ.RevisionT:In the last period we learnt a passage about Franklin's famous kite experiment.Now I'll ask one or two students to retell the experiment.Who'd like to?S1:I'll try.In June 1752,Franklin wanted to show that lightning and electricity were the same.He decided to do an experiment using a kite,so he built a strong kite of silk.When the first thunderstorm came,with his son's help,he took his condenser to a shed in the fields and flew the kite high.It began to rain,but nothing happened.when they were waiting in the rain,he saw some hairs on the string stood up.The string was getting charged.He brought his finger close to the key and felt a light but very clear electric shock.That experiment succeeded and proved that lightning and electricity were the same.T:Very good.Now I'll ask another student to describe an experiment done before.Any volunteers?S2:Last year I did an experiment about the character of roots growing towards water.Let me describe it.I wanted to show the roots of plants grow towards the direction of the place with water.I thought much and I found the best way to prove it.First,I found two pots with the same soil and plants in each of them.I markedthem with No.1 and No.2 on each pot.Then in No.2 pot I dug a hole which was a certain distance from the plant.I put some water around the plant in the first pot but some water into the hole of the other.Some days later,I took them out of the soil.To my surprise,the roots of the plant in No.1 grow as usual,while the roots of the other plant grow towards the hole.It proved that the roots of plants grow towards the direction of the place with water.Step Ⅲ.Word StudyT:In the passage learnt yesterday we learned some important words,such as,charge,conduct,cross,sharp,tear,tie and so on.Please find out the sentences including the words from the passage.(Teacher asks students to read the sentences and shows them on the screen.)T:Please look at the sentences and put them into Chinese.Meanwhile,tell me the meanings of the underlined words.Suggested answers:1.conduct vt.指导；进行富兰克林做了许多实验，在这些实验中他证实了电是什么。

Unit16 Scientists at work一、课文背景知识富兰克林（1706-1790）本杰明.富兰克林——资本主义精神最完美的代表，十八世纪美国最伟大的科学家，着名的政治家和文学家。

他一生最真实的写照是他自己所说过的一句话“诚实和勤勉，应该成为你永远的伴侣。

”学习一生1706年1月17日，本杰明.富兰克林出生在北美洲的波士顿。

他的父亲原是英国漆匠，当时以制造蜡烛和肥皂为业，生有十个孩子，富兰克林排行第八。

富兰克林八岁入学读书，虽然学习成绩优异，但由于他家中孩子太多，父亲的收入无法担负他读书的费用。

所以，他到十岁是就离开了学校，回家帮父亲做蜡烛。

富兰克林一生只在学校读了这两年书。

十二岁时，他到哥哥詹姆士经营的小印刷所当学徒，自此他当了近十年的印刷工人，但他的学习从未间断过，他从伙食费中省下钱来买书。

同时，利用工作之便，他结识了几家书店的学徒，将书店的书在晚间偷偷地借来，通宵达旦地阅读，第二天清晨便归还。

他阅读的范围很广，从自然科学、技术方面的通俗读物到着名科学家的论文以及名作家的作品。

就是在当学徒的这段时间里，富兰克林把在学校曾两度考试不及格的算术学了一遍，又读了塞勒和舍尔梅的关于航海的书，从这些航海的书里，他接触到了几何学知识。

他还读了洛克的《人类的悟性》和波尔洛亚尔派的《思维的艺术》。

富兰克林的学习日渐深入。

1723年富兰克林离开了波士顿，到费城的基末尔印刷所和英国伦敦的帕尔未和瓦茨印刷厂当工人。

1726年秋，富兰克林回到费城，这时他已掌握了精湛的印刷技术，开始独立经营印刷所，印刷和发行《宾夕尼亚报》，并出版了《可怜的立查历书》，当时被译成十二种文字，销行于欧美各国。

1727年秋，在费城他和几个青年创办了“共读社”，组织了小型图书馆，帮助工人、手工业者和小职员进行自学。

每星期五晚上讨论有关哲学、政治和自然科学等问题。

这时富兰克林还不到三十岁，通过刻苦自修，已经成为一个学识渊博的学者和启蒙思想家，在北美的声誉日益提高。