人教高中英语必修3Unit4SpeakingandWritingppt课件.pptx

名名 师师 课课 件件0Speaking and Writing Learning objectivesBy the end of the class,all of us will be able to:1.talk about the problems and solutions on the moon.2.know how to write an expositive writing from the two aspects (contents and structure).3.know how to improve the passage from the aspect(language).4.Write an e-mail to your headteacher to give them some suggestions on the moon.The world is so wonderful The world is so wonderful that I want to have a look.that I want to have a look.A visit to the moon Summary:fill in the blanks.Last month I visited the moon with my friend.Before we left,I was told the force of g_ would change three times on our journey.Then we took off.As we left the earth,I became very h_.Gradually the weight l_.when I was in space,it d_.we f_ weightlessly in the cabin and I c_ _.when I was on the moon,I was surprised to find out even walking needs lots of practice n gravity changed.The returning of the earth was very f_.we were amazed to watch fire b_ _ on the outside of the ship.ravityeavyessenedisappearedloatedheered upow thatrighteningreak outStage11.If you travelled to the moon,what problems would you have?(Discuss in groups of four)Stage 22.If you travelled to the moon,what things would you need?Why?(Discuss in groups of four)problemson the moon no air less gravity little water no magnetic field(没有磁没有磁场)Things needed oxygen tanks space food spacesuit water spaceship Your headteacher Mr.xiong will travel to the moon.Please write a letter to explain one of the problems that he might have on the moon.Set out what he should do to overcome this difficulty and have a happy visit.【思路引导】信件的内容属于典型的（解决问题)exposition（说明文），此类文章写作的基本提纲模式是：第一部分：开篇首先要，明确需要解决的问题是什么，即对现状、形势、困难等进行描述，并说明解决问题的紧迫性和必要性。pre-writingStage3problem-solution raise a problem【语言积累】1.Problems:.is really a problem.One of the difficulties is.It is difficult/hard to do.is a problem that we have to face.It is of great importance for us to.It has become the biggest concern of.Unless we take effective measures,it is likely that.第二部分：主体。分析问题和解决问题，即提出解决问题的可能办法()，可使用列举、阐释等说明方法。possible solutions2.Solutions:We have figured out many ways to.Only in this way can we.To solve the above-mentioned problem,we must.There might be two solutions.The first one is to.We can solve the problem by doing.evaluation3.Conclusion:In a word .By doing.you will.With the help of.we can manage to overcome these difficulties.We must find out new ways to cope with the problems that would arise.Which one is more vivid(生生动的的)?If you are really planning a trip to the moon,youd better pack warm and cool things.If you are really planning a trip to the moon,youd better pack something which keeps you warm,and also cool.Ready for language How to make your passage more interesting?Compare and feel!Stage 4 pre-writingattribute Which one is more specific(具体的具体的)?its temperature varies greatly between day and night.Because the moon has no atmosphere to block some of the suns rays or to help trap heat at night,its temperature varies greatly between day and night Read for language How to make your letter more interesting and smooth?Compare and feel!Stage 4 pre-writingAdverbial（状语状语）which one is smoother?Scientists use this technology and theycan create a surface zone with the relatively constant temperature.With this technology,scientists can create a surface zone with the relatively constant temperature.Read for language How to make your letter smoother?Compare and feel!Stage 4 pre-writingLinking wordsStage 4 pre-writing In expositive passage,we can use the following techniques to make your writing more interesting and perfect.to make the language more vividto make the language more specificto make the sentences smootherlinking wordsadverbialattributeStructure&languageenjoy writing!Stage 4 pre-writingpara3.raise a question bodypara1.para2.solutionsevaluationadverbialattributelinking wordsEnjoy writing Please write a letter to your headteacher to explain one of the problems that he might have on the moon.Set out what he should do to overcome this difficulty and have a happy visit.【语言积累】1.Problems:.is really a problem.One of the difficulties is./The question is.It is difficult/hard to do.is a problem that we have to face.It is of great importance for us to.Unless we take effective measures,it is likely that.2.Solutions:We have figured out many ways to.Only in this way can we.To solve the above-mentioned problem,we must.There might be two solutions.The first one is to.We can solve the problem by doing.3.Conclusion:In a word.By doing.you will.With concerted efforts we will pull through the difficulties.With the help of.we can manage to overcome these difficulties.We must find out new ways to cope with the problems that would arise.Show time Post the letter to mr.Xiong,his Email address is .Thanks for listening【语言积累】1.Problems:.is really a problem.One of the difficulties is./The question is.It is difficult/hard to do.is a problem that we have to face.It is of great importance for us to.It has become the biggest concern of.Unless we take effective measures,it is likely that.2.Reasons:There is no doubt that the reason why.is that.One reason for.is that.Another reason is that.The reasons for.can be listed as follows.The following three factors contribute to.First of all,.Secondly,.Thirdly,.3.Solutions:We have figured out many ways to.Only in this way can we.To solve the above-mentioned problem,we must.There might be two solutions.The first one is to.We can solve the problem by doing.4.Conclusion:In a word/To sum up.By doing.you will.With concerted efforts we will pull through the difficulties.With the help of.we can manage to overcome these difficulties.We must find out new ways to cope with the problems that would arise.How to deal the problems on the moon If you are really planning a trip to the moon,youd better pack something which keeps you warm,and also cool.Because the moon has no atmosphere to block some of the suns rays or to help trap heat at night,its temperature varies greatly between day and night.That will be a great challenge to the human system.To deal with this problem,scientists have invented spacesuits with internal heaters and cooling systems.With this technology,scientists can create a surface zone with the relatively constant temperature.You will find that very helpful on your trip to the moon.