Unit4 Global warming Period 6 教案(新人教版必修6)整体设计教学内容分析This is the last teaching period of this unit, so the emphasis should be placed on going over and summarizing what has been learned in this unit.lt includes the following parts： Summing Up, Learning Tip, Checking Yourself and some other consolidation exercises.Summing Up summarizes the whole unit from the aspects of topics and vocabulary and grammar.The teacher can first use this part to let students sum up what they have learned in this unit and then let them find out what they can't understand very well.Learning Tip gives students instructions on which kind of nouns begin with a capital letter.Let the students think about what they already know about the rules and what new information they will find.Checking Yourself on Page 68 in the Workbook aims at encouraging students to make a self —assessment after they finish learning this unit.lt is very important to improve their learning.Of course, a testing assessment is also needed.In this period, the teacher can also provide more practice to consolidate what students have learned in this unit.三维目标设计Knowledge and skills1 • To get students to master all the useful new words and expressions in this unit・2.To have students understand the new grammar item “the use of 'it' (2)" better, and enable them to use the sentence patterns correctly.3.To develop the students* ability to use the important language points in this unit.Process and methodsDesign some additional exercises for students to do in order that they can learn to use and grasp all the contents.Emotion, attitude and value1.To encourage students to learn more about global warming and environmental protection.2.To inspire the students to think up more effective measures to prevent global warming. 教学重、难点Using what they have learned in this unit to solve real problems.教学过程Step 1 Revision1 • Check the homework exercises・2.Dictate some useful new words and expressions in this unit.Step 2 Lead —inAsk the students to turn to Page 32.Think about what they have learned in this unit and tick the boxes to see how well they have learned them.Step 3 Summing upFive minutes for the students to summarize what they have learned in this unit by themselves.Then check and explain something where necessary.Suggested answers：Write down what you have learned about global warming：(Students1 answers may vary.)The temperature of the earth rose about one degree Fahrenheit during the 20th century.lt is human activity that has caused this global warming.All scientists subscribe to the view that the increase in the earth's temperature is due to the burning of fossil fuels.Some byproducts of this process are called greenhouse gases, which trap heat and warm the earth.Without the greenhouse effect, the earth would be cooler than it is.But scientists don't agree with each other on the effects of global warming.Some think it will be a disaster, but some others think ifs a good thing and we can do nothing to prevent the trend.By reading the second passage, we also know some easy and effective measures we can take to deal with global warming.From this unit you have also learned：Some useful words： tend, oppose, state> glance, quantity, range, tendency, circumstance, opposed, steady, widespread, average, consume, subscribe, advocate, refresh, graph, phenomenon, fuel, data, trend, catastrophe, flood, consequence，existence，commitment, pollution, growth, motor, can, micro wave, educator r contribution, presentation, disagreement, random, mild, outer, electrical, casual, nuclear, perSome useful expressions： come about, subscribe to, quantities of, go up, result in, be opposed to, even if, keep on, on the whole, on behalf of, put up with, so long as, and so on, greenhouse effect New grammar item： the use of "it"—how to use "i广for emphasis in a sentence.Functional items： how to express agreement and disagreement, blame and complaint・Step 4 PracticeShow the exercises on the screen or give out exercise papers・Part 1 Vocabulary1 • Researchers c _____ living conditions in London with those in other places.2.Their prices are low c _____ t o those in other shops・3.I don't think anybody m _____ t o her apart from herself.4.He prefers q _____ to quality when food is concerned・5- The d _______ w e have collected are not enough to be convincing・6.Everything was in a s _____ o f disorder.7.What is the a _____ rainfall for August in your country?8.Each i _____ b oy in the class has his own personalities.9.We have been having a few a _____ in the committee lately・10.They were p _____ in the history of music.11.As a c _____ o f being in hospital, Shelly decided that she wanted to become a nurse.12.A doctor has the t _____ i n front of his name・13 • The number of the children in the school has d_____ by 500 this yea匚14. The cooker isn't working because of an e ______ fault.15 • The food was cold and the guests quarreled一the whole dinner was a c ____ .Part 2 Useful phrases1.在20世纪期间_____________2.导致 ___________3.另_方面_____________4.通过燃烧化石燃料_____________5.大量的 ___________6.忍受污染____________7.有关系，有影响_____________8.大体上，基本上_____________9.高达5摄氏度_____________10.发生 ____________Part 3 Complete the following sentences according to the texts.1 • An energy source is renewable when supplies of it never_____________ .2.It is a rapid increase _______________________________ .3.There is ____________ that the earth is becoming warming but there is _____________ _____ whether it is _____________________ has caused this global warming or whether it is4._____ the greenhouse effect, the earth ________________ about thirty—three degrees Celsius _________________________ .5.The ____________ of carbon dioxide _______ that more heat energy is trapped in the atmosphere _____ the ________________________________ .6.It was___________________ Charles Keeling ______ m ade ___________________ the amount of carbon dioxide in the atmosphere from 1957 to 1997・7 - They also believe ___________ the burning of more and more fossil fuels that is ______ _____this increase in carbon dioxide.8.There are some very different _____ among scientists ___________________ ・9.Sometimes I feel that _______ can't have any _____________________ huge ______ problems.10・ Finally and most _____ ，talk ______ your family and friends ______ g lobal warming and tell them what you have learned・11 • Remember—your ____________ ・Part 4 Multiple choice1.Is it ____ to you that the government is having a hard time now?A.of much importantB. of much consequenceC・ of very importance D. of much consequent2.Something must be done to ______ t he river from ______ ・A・ stop； being polluted B. stop； pollutingC. prevent； pollution D・ keep； polluted3 - There ______ q uantities of apples in the basket and there was ______ milk in the bucket.A ・ were ； a number ofB ・ was ； quantities ofC・ was； a good many D・ were； a quantity of4._____ w e get good weather it will be a successful holiday.Which is wrong?A. So long as B• Provided thatC. So longD. On condition that5.一Go for a picnic this weekend, OK?一______ .1 love getting close to nature・A・ I don't think so B. I believe notC. I couldn't agree moreD. I am afraid not6.一Now，where is my purse?—_____ ! We will be late for the picnic.A. Come onB. Don't worryC. Take your timeD. Take it easy7. It was not until 1999 _____ regular radio broadcast began.A. whileB. whichD. since8. Can it be in the restaurant _____ we had dinner last Sunday ______ you left your wallet?A. where ； whereB ・ where ； that C. that ； whereD. that ； that 9・ ——Whafs the matter with you?— _____ t he window, my fin ger was cut un expectedly.A ・ Cleaning B. To clean 14.electrical 15.catastrophePart 2 Useful phrases1 • during the 19th century 2」ead to 3.on the other hand 4.through the burning of fossil fuels/by burning fossil fuels 5.a great deal of/scores of 6.put up with the pollution7. make a differenee 8.on the whole 9.as much as five degrees Celsius(5 °C) e about Part 3 Complete the following sentences according to the texts ・1 • run out pared to most natural changes 3.no doubt ； fierce debate over ； human activity that ； just a natural phenomenon [Without ； would be ； cooler than it is 5.increased amount ； means ； causing ； global temperature to go up 6.a scientist called ； who ； accurate measurements of 7.it is ； resulting in S.attitudes ； towards this issue 9.individuals ； effect on such ； environmental lO.importantly ； with ； about 11 .contribution countsPart 4 Multiple choice1 〜5 BADCC 6〜10ACBDDStep 5 Learning tipAsk the students to turn to Page 32.Read through the passage and make sure they understand it.Encourage them to do as the passage tells because if they are doing so they will be teaching themselves a useful way of using English words.Step 6 Assessment1. Checking yourself(on Page 68 in the Workbook)First get the students to think about these questions individually.Then they can discuss in C ・ that C. While cleaningD ・ While I was cleaning 10. The other day,my brother drove his car down the street at I thought was a dangerous speed.A ・asB. whichC. thereD. what Suggestedanswers ：Part 1 Vocabulary1 • compared pared 3.matters 〈quantity 5.data 6.state 7<average8.individual 9.agreements lO.phenomena11 .consequence 12.title 13.decreasedgroups sharing their experience.The teacher can join in and give them advice and suggestions where necessary.2.Testing assessmentMultiple choice1 • _____ with the size of the whole earth, the biggest ocean does not seem big at all.A • CompareB • When comparingC • Comparing D. When compared2. Please tell me how the accident ____ 」am still in the dark.A ・ came by B. came outC • came to D. came about3. The accident _____ the death of two passengers-A ・ resulted fromB. resulted in C ・ resulted ofD ・ resulted with 4. It is in the west of China _____ there is no doubt ______ it is going to rain tomorrow. A. where ； whetherB ・ that ； that C. that ； whetherD ・ where ； that 5・ It was 1969 _____ the American astronauts succeeded in landing on the moon.A. that B ・ when C. on which D. which6. It was______ back home after the experiment.A. not until midnight did he goB. until midnight that he didn't goC. not until midnight that he wentD ・ until midnight when he didn't go7. There's some doubt ______ h e'll keep his promise.A. whetherB ・讦 C. that D. which8・ The _____ parents were all ______ f or the children's safety.A ・ concerned ； concernedB • concerned ； concerningC • concerning ； concerningD • concerning ； concerned 9. The students ages _____ 15 to 18.11 • _____ , we would have not finished the work on time.12 ・ 一I will not come here tomorrow._____ t o me, because I don't care.A. It doesn't make any differenceB • It makes much differenceC. It doesn't make no differenceD. It makes a difference13. You can go out, ______ you promise to be back before 11 o'clock.A ・ rangeC. range from10. _____ , well go camping.A ・ Weather permits C. Weather permitting B• ranged D- ranges fromB • If weather will permitD ・ Weather permittedA. If you didn't help us B • Without your helpC- Without you D. With your helpA. as far as C. when B • so far asD・ as/so long as14・——I apologize for not being able to join you for dinne匚—_____ .Well get together later.A. Go aheadC. That's right15 • Christmas is together.A. the； theC. the； aB ・ Not to worryD. Don't mention itspecial holiday when whole family are supposed to getB・ a； aD. a； theSuggested answers： 1 〜5DDBBB 6~10CAACC 11 〜15 BADBD Step 7 Homework1 ・ Finish off the Workbook exercises.2. Review and summarize what you have learned in Unit 4.Step 8 Reflection after teaching。
