1、Unit 4 Space ExplorationMystery creates wonder and wonder is the basis of mans desire to understand.Neil ArmstrongSo we should pay more attention to the Worlds pollution and poverty issues rather than space exploration.Step 1.Lead-in I think we should be favor of it because a lot of space technologi
2、es has already provided service for us common people,like GPS.I think we should stop because we need more money and effort to help the poor,the disabled.Whats worse,there are a lot of risks in space exploration,like the Challenger accident.3 Underline the sentence that repeats the writers opinion in
3、 the last paragraph.1 Read the first paragraph and underline the different opinions about space exploration.2 Find the three topic sentences that summarise the writers arguments about space exploration.Read the passage quickly and answer these questions.1 2.2.2.3IntroductionBody(supporting details)C
4、losingpara1Para2Para3Para4 Para5Exploring space has already made a difference in the fight against world hunger.Space exploration has already promoted technological improvements that benefit us all.Sending astronauts into space helped people to think about the worlds problems and even to find ways t
5、o solve them.This is a shallow view which fails to realize now exploring space helps us.Exploring space provides the world with many different benefits.Task 2:Read Find out the main idea for each paragrah.1.Why are some people against space exploration?2.What has space exploration done for food prod
6、uction?3.What did the pictures of Earth from space make people realise?4.How does space exploration benefit the products that people use nowadays?Task 3:Read the passage on P44 and answer the questions.Because they think it is a waste of time and money,and that we should feed the worlds poor and fin
7、d immediate solutions to other problems,such as pollution and fatal diseases,instead.1.Why are some people against space exploration?2.What has space exploration done for food production?3.What did the pictures of Earth from space make people realise?Satellites study land and weather patterns.These
8、studies help farmers grow more crops and warn them about natural disasters before they occur.They made people realise that our planets resources are limited.4.How does space exploration benefit the products that people use nowadays?Advanced technology developed for space exploration has promoted tec
9、hnological improvements that benefit us all by allowing products to be made to a higher standard.Mind mapDifferent Opinions We should stop exploring space.Other opinion:_.Exploring space can help usDifferent benefits It can _.It promotes _.It helps people _the worlds problem.fight against world hung
10、er technological improments think about ConclusionExploring space should _.be continued Is exploring space a waste?1waste time doing sth2find solutions to problems3fatal diseases4result in5orbit Earth6provide recommendations for sb 7be widely used8at present浪费时间做某事浪费时间做某事找到解决问题的方法找到解决问题的方法致命的疾病致命的疾病
11、导致导致环绕地球环绕地球为某人提供建议为某人提供建议被广泛使用被广泛使用目前目前Language points 9in the future10in closing11be against12unsolved mysteries13run out14give feedback on15spelling errors将来将来最后最后反对反对未解之谜未解之谜用完用完对对作出反馈作出反馈拼写错误拼写错误Step 3.Writing 本单元的写作任务是写辩论性文章。辩论性文章在行文本单元的写作任务是写辩论性文章。辩论性文章在行文时一般分为三个段落：时一般分为三个段落：第一部分：引入辩论的话题；第一部分
12、：引入辩论的话题；第二部分：列举正方观点及理由；列举反方观点及理由；第二部分：列举正方观点及理由；列举反方观点及理由；第三部分：表明作者自己的观点。第三部分：表明作者自己的观点。有时候正方的观点和反方的观点各成一段，这样的话全文可有时候正方的观点和反方的观点各成一段，这样的话全文可分为四段。分为四段。1.介绍讨论的主题介绍讨论的主题(开头句开头句)We had a discussion about whether it is necessary to.Weve had a survey on how to choose their courses，majors and universities
13、.We have held a discussion about whether it is good or not.常用表达常用表达2.过渡句过渡句Opinions are divided on this issue.Opinions are mainly divided into two groups.Different people，however，have different opinions on this matter.Different people，however，think quite differently on this matter.常用表达常用表达3.介绍正方观点介绍
14、正方观点45%of the students hold the view that.For one thing，.For another thing，.60%of the students are for the idea.4.介绍反方观点介绍反方观点On the contrary/However/As the old saying goes，each coin has two sides.Nearly half of the students think that.On the one hand，.On the other hand，.常用表达常用表达5.转折词转折词表示起始关系表示起始关系
15、:above all，to begin/start with，today，now，nowadays，at present，currently，recently，generally speaking，according to，with the development of.表示时间顺序表示时间顺序:firstly，first of all，to begin/start with，then，later，in the end，finally，at last，after that，afterwards,since then,immediatelysuddenly,meanwhile表示并列关系表示并列
16、关系:and，or，also，as well as，neither.nor.，not only.but also.，either.or.，not.but.表示转折关系表示转折关系:but，yet，however，while，otherwise，on the contrary，though，although，even if/though，despite，in spite of，regardless of表示因果关系表示因果关系:because，as，since，for，thanks to，due to，as a result of，so，therefore，as a result/consequ
17、ence表示递进关系表示递进关系:whats more，furthermore，moreover，besides，whats worse，still less，to make matters worse，worse still，on the one hand.on the other hand.，for one thing.for another thing.表示列举事实表示列举事实:such as，for example/instance，take.for example，that is to say，as follows，in other words表示观点表示观点:in my opini
18、on，in my view，from my point of view，as far as I am concerned，as for me，personally表示总结表示总结:in short，in brief，in conclusion，in a/one word，to sum up，all in all，on the whole，in general假设你是李华，最近你班就假设你是李华，最近你班就“人类是否应该开展克隆研究人类是否应该开展克隆研究”进行了讨论。请根据讨论结果，写一封进行了讨论。请根据讨论结果，写一封80词左右的信给某英词左右的信给某英文报社的编辑来报道此事。文报社的编辑
19、来报道此事。典例示范典例示范赞成的理由赞成的理由反对的理由反对的理由你的看法你的看法1.1.挽救濒危动物；挽救濒危动物；2.2.再造人体器官，用于移植。再造人体器官，用于移植。1.1.引起基因变异；引起基因变异；2.2.克隆人导致伦理道德混乱。克隆人导致伦理道德混乱。Writing注意：注意：1.词数词数80左右。左右。2.开头已给出，不计入总词数。开头已给出，不计入总词数。_写作要求是阐述写作要求是阐述“人类是否应该开展克隆研究人类是否应该开展克隆研究”的讨论的讨论结果，写作时应注意下面几点：结果，写作时应注意下面几点：1.1.确定文体：这是一篇议论文。写作时要注意议论文的写确定文体：这是一
20、篇议论文。写作时要注意议论文的写作特点。作特点。2.2.主体时态：文章应以一般现在时为主。主体时态：文章应以一般现在时为主。3.3.主体人称：由于是关于主体人称：由于是关于“人类是否应该开展克隆研究人类是否应该开展克隆研究”的话题，所以人称应该以第三人称为主。的话题，所以人称应该以第三人称为主。审题谋篇审题谋篇谋篇谋篇第一段：选用合适的称呼语，提出论题第一段：选用合适的称呼语，提出论题人类是否应该开人类是否应该开展克隆研究。展克隆研究。第二段：正方观点第二段：正方观点1.1.挽救濒危动物；挽救濒危动物；2.2.再造人体器官，再造人体器官，用于移植。用于移植。反方观点反方观点1.1.引起基因变异
21、；引起基因变异；2.2.克隆人导致伦理道德混乱。克隆人导致伦理道德混乱。第三段：自己的观点第三段：自己的观点总结全文，言简意赅。总结全文，言简意赅。审题谋篇审题谋篇1.拯救濒危动物拯救濒危动物2.处理处理3.也，又，还也，又，还4.反对反对5.引起引起6.有有影响影响_save endangered animalsdeal/do withas well asbe against/object(to)bring abouthave effects/an effect on 核心词汇核心词汇1.克隆对拯救濒临灭绝的动物有用。克隆对拯救濒临灭绝的动物有用。Cloning is useful .2.克
22、隆有助于研究许多疾病的治疗方法。克隆有助于研究许多疾病的治疗方法。(beofn.in doing)for many diseases.for saving endangered animalsCloning is of help in researching into the cures连词成句连词成句3.我个人认为，政府应该认真对待、严密监控克隆问题。我个人认为，政府应该认真对待、严密监控克隆问题。Personally，the government should and monitor it closely.4.我们对克隆在未来会对世界产生的影响还不够了解。我们对克隆在未来会对世界产生的影响
23、还不够了解。the world in the future？We dont understand enough.deal with cloning carefullyWhat effects will cloning have on连词成句连词成句1.按括号内的要求合并句按括号内的要求合并句1和句和句2。(1)_(not only.but also.，not only置于句首置于句首)(2)_(as well as)Not only is cloning useful for saving endangered animals，but also it is of help in researc
24、hing into the cures for many diseases.Cloning is of help in researching into the cures for many diseases as well as useful for saving endangered animals.句式升级句式升级2.用被动语态改写句用被动语态改写句3。_3.用宾语从句改写句用宾语从句改写句4。_Personally，cloning should be dealt with carefully and monitored closely by the government.We dont
25、 understand enough what effects cloning will have on the world in the future.Dear Editor，Recently our class has had a discussion about whether the clone research should be carried out.Some of the students are for the clone research.They say cloning is of help in researching into the cures for many d
26、iseases as well as useful for saving endangered animals.Cloning human cells in a lab could offer perfect organs for patients to transplant.However，others are against it.组句成篇组句成篇Though cloning might improve the quality of life，it might bring about some genetic changes.It also might raise ethical problems.Personally，cloning should be dealt with carefully and monitored closely by the government，because we dont understand enough what effects cloning will have on the world in the future.YoursLi Hua组句成篇组句成篇
