1、Unit 4 Space Explorationargumentative essayThe earth is still facing challengespovertyhungerpollutiondiseaseIs exploring space a waste of time and money?Why?学习目标：学习目标：1.学习学习议论文议论文的的结构结构和和语言特征语言特征2.能够揣摩作者的能够揣摩作者的观点观点、态度态度3.掌握文章的掌握文章的意思意思 Countries around the globe are spending billions of dollars and
2、 lots of time on various space missions,whether to Mars or other planets much further away.Some people argue that 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,o
3、thers feel this is a shallow view which fails to realize how exploring space helps us.练习1 画出关于太空探索(space exploration)的不同观点第一段：介绍主题+不同的观点,exploring space has already made a difference in the fight against world hunger.,space exploration has already promoted technological improvements that benefit us
4、all.,sending astronauts into space has helped people to think about the worlds problems and even to find ways to solve them.练习2 画出3个主题句（总结作者对space exploration的论点）Firstly,exploring space has already made a difference in the fight against world hunger.It has directly resulted in the many satellites th
5、at now orbit Earth.A number of the satellites record data on land and weather patterns.Then the data is transmitted to scientists on Earth.After careful analysis,the scientists can provide useful recommendations and advice for farmers.As a result,space-b ccccased science has helped farming in its ef
6、forts to grow enough food to feed Earths increasing population.练习3 作者用什么写作手法支撑论点）举例(By giving examples)Secondly,space exploration has already promoted technological improvements that benefit us all.High-end products around the world are made to a higher standard now because of advanced technology wh
7、ich was first created to meet the requirements for space exploration.For example,space technologies have helped the research and development of different types of new material.They have also helped companies make better heart monitors and other machines that doctors regularly use.Today,space technol
8、ogies are widely used in all kinds of industries,and everyday products such as GPS,memory foam(乳胶泡沫)pillows,and smartphone cameras are changing our lives.练习3 作者用什么写作手法支撑论点）举例(By giving examples)Finally,sending astronauts into space has helped people to think about the worlds problems and even to fin
9、d ways to solve them.Seeing pictures of our planet as an island in a black sea made people realise that our planets resources are limited.In order to provide for such a rapidly increasing population,scientists are trying to find other planets that could one day be our new home.The greatest attention
10、 at present is on Mars because it is closer to Earth.In the future humans may live on both planets.练习3 作者用什么写作手法支撑论点）解释(By explaining)练习4 划出作者总结的观点，揣摩作者态度结尾重申主题，首尾呼应Para1Para2Para3Para4 Para5,exploring space has already made a difference in the fight against world hunger.,space exploration has alrea
11、dy promoted technological improvements that benefit us all.,sending astronauts into space has helped people to think about the worlds problems and even to find ways to solve them.Some people argue that we should stop.However,others feel this is a shallow view.,exploring space provides the world with many different benefits.介绍主题介绍主题+不同的观点不同的观点 正文正文 结论结论Read for structure 论点1+细节支撑论点 2+细节支撑论点 3+细节支撑重申主题暗示作者态度
