1、1Section Reading for Writing关于太空探索的正反对比议论文本单元的写作任务是读一篇关于太空探索的文章后，写一篇关于太空探索的正反对比议论文。2.Pre-writing()Learning to write after the modelIS EXPLORING SPACE A WASTE OF TIME AND MONEY？Countries around the globe are spending billions of dollars and lots of time on various space missions，whether to Mars or ot
2、her planets much further away.Some people arguethat we should stop wasting time and money exploring space.Instead，we should feed the worlds poor and find immediate solutions to other problems，such as pollution and fatal diseases.However，others feel this is a shallow view which fails to realise how e
3、xploring space helps us.3Firstly，exploring space has already made a difference in the fight against world hunger.It has directly resulted in the many satellites that now orbit Earth.A number of the satellites record data on land and weather patterns.Then the data is transmitted to scientists on Eart
4、h.Aftercareful analysis，the scientists can provide useful recommendations and advice for farmers.As a result，space-based science has helped farming in its efforts to grow enough food to feed Earths increasing population.4Secondly，space exploration has already promoted technological improvements that
5、 benefit us all.High-end products around the world are made to a higher standard now because of advanced technology which was first created to meet their requirements for space exploration.For example，space technologies have helped the research and development of different types of new material.They
6、 have also helped companies make better heart monitors and other machines that doctors regularly use.Today，space technologies are widely used in all kinds of industries，and everyday products such as GPS，memory foam pillows，and smartphone cameras are changing our lives.5Finally，sending astronauts int
7、o space has helped people to think about the worlds problems and even to find ways to solve them.Seeing pictures of our planet as an island in a black sea made people realise that our planetss resources are limited.Inorder to provide for such a rapidly increasing population，scientists are trying to
8、find other planets that could one day be our new home.The greatest attention at present is on Mars because it is closer to Earth.In the future，humans may live on both planets.In closing，exploring space provides the world with many different benefits.Therefore，it should continue so as to provide new
9、and better solutions to peoples short-term and long-term problems.6篇章结构Para.1：Advance an argument whether exploration space a waste of time and money.Para.2：Exploring space has contributed great to the fight against world hunger.Para.3：Space exploration has already promote technological improvement.
10、Para.4：Sending astronauts into space has furthered understanding of the worlds problems and figuring out ways to solve them.Para.5：Draw a conclusion that exploring space is of great benefit.78()Preparation for writingwords and phrases_发射卫星 _收集数据_探索太空_ 有很大影响_ 导致_ 从中受益_先进的技术launch a satellitecollect d
11、ataexplore spacemake a differenceresult inbenefit fromadvanced technology9_满足要求_改变我们的生活_ 有限的资源_ 靠近；接近_提供生活所需_促进技术改进_ 提供解决问题的办法meet the requirementschange our liveslimited resourcesbe close toprovide forpromote technological improvementprovide solutions to problems10.While-writing最近，你班同学就“太空探索是否值得”这一
12、话题展开了一场讨论。请你根据下表提供的信息，用英语写一篇短文介绍讨论的情况。30%的同学认为：70%的同学认为：1.不值得探索2.离我们及我们的日常生活太遥远3.浪费金钱。这些金钱本可用来解决地球上的饥饿、污染等问题1.值得探索2.已使用卫星进行通讯传播、天气预报3.有望解决地球人口问题、地球能源短缺问题11Step 1List the outline of the passage.Paragraph 1：_Paragraph 2：_Paragraph 3：_Recently，students in our class have had a discussion on whether spac
13、e is worth exploring.30%of us think space exploration is not worthwhile.On the other hand，70%think space is worth exploring.12Step 2List the words，phrases and sentences.1.Words and phrases_ 举行讨论 _ 值得做_ adj.值得的_ 离很远_ 被用来做have a discussionbe worth doingworthwhilebe far away frombe used to do13_ 从受益良多_
14、 n.交际_ 天气预报_ 能源短缺benefit a lot municationweather forecastenergy shortages142.Sentences用于太空探索的资金可以用来解决地球的饥饿和污染等问题。(过去分词作定语)_70%的人认为太空值得探索，因为我们从中受益匪浅。(because)_And the money spent on space exploration can be used to solve the earths problems such as starvation and pollution.70%think space is worth exp
15、loring because we have benefited a lot from it.15总有一天，我们可以搬到其他星球去解决人口问题。(by doing)_太空研究将使我们能够找到新的能源来解决地球上的能源短缺问题。(不定式作目的状语)_We may solve the population problem by moving to other planets one day.Space research will enable us to find new sources to solve the problem of energy shortages on the earth.1
16、6Step 3Draft the passage by using the following words.and，on the other hand，also，whats moreRecently，students in our class have had a discussion on whether space is worth exploring.30%of us think space exploration is not worthwhile.They think space is too far away from us and our daily life.And the m
17、oney spent on space exploration can be used to solve the earths problems such as starvation and pollution.17On the other hand，70%think space is worth exploring because we have benefited a lot from it，such as using satellites for communication and weather forecast.Whats more，with further space resear
18、ch，we may solve the population problem by moving to other planets one day.Also，space research will enable us to find new sources to solve the problem of energy shortages on the earth.18.Post-writingpolishing the passageExchange your passage with your partner，and pay attention to the following points
19、.1.Does the writer explain why he/she changed/wanted to change?2.Does the writer tell how the changes have improved or will improve his/her life?3.Is the text well-organised?4.Does the writer use words and expressions to show similarities and differences?5.Are there any grammar or spelling errors?6.
20、Does the writer use correct punctuation？19常用词汇have a discussion about，different opinions，on the one hand.on the other hand.，first/second/third.，whats more，besides，in addition，however/but/though，to sum up/in a word/in conclusion/in short/above all/in general/generally speaking20亮点表达1.Recently we have
21、 had a heated discussion on whether we can play computer games or not.最近我们就是否可以打电脑游戏举行了热烈的讨论。2.According to a recent survey，fourmillion people die each year from diseases linked to smoking.依照最近的一项调查，每年有4 000 000人死于与吸烟相关的疾病。3.Opinions are divided on the question.在这个问题上有意见分歧。4.Some students are for th
22、e idea，while others think otherwise.一些学生赞成这个想法，而另一些人则不这么认为。215.However，there are a large number of people who hold a different view concerning this case.然而，有很多人对这个事情持不同的看法。6.It has more disadvantages than advantages.它弊大于利。7.Some hold the view that doing sports can keep fit，while others think that it
23、 is a waste of time doing sports.有些人认为做运动可以强身健体，然而有些人认为运动是浪费时间。8.Therefore，we can draw the conclusion that the sharp decline of wildlife species resulted from the population growth.因此，我们可以很自然的得出结论，即野生物种的急剧下降源于人口的增加。22写作技巧正反对比类议论文是从正反两方面辩证地说明某个观点。此类议论文应注意以下几点：1.此类文章的结构一般为：引语正方观点反方观点结论。2.文章要做到要点完整、条理清晰。各段之间层次清楚，以使文章显得有条理。从段落内部的层次上讲，每一段一般又分为三部分：主题句、扩展句和总结句。3.常用一般现在时。
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