高中英语-高考（概要写作话题训练7）地球探索-共21张课件.pptx

1、【概要写作话题训练7】地球探索1人与环境主题语境:地球探索关键词:finding chemicals语篇类型:事理阐释短文词数:371语篇难度:建议时间:24mins阅读下面短文,根据其内容写一篇60词左右的内容概要Sharks aren t the scariest things in the ocean for scientists who dive to work Powerful currents created here the ocean floor drops away can be just as deadly.You can get sucked down and crush

2、ed by the pressure within minutes,notes Marcel Jaspars.Hes a chemist who once saved himself from such a current.he encountered it while taking photos of a sea sponge near Indonesia,in Southeast Asia.Luckily,he inflated his dive vest in time.He was able to float to the surface and escape the potentia

3、lly deadly current.2Diving has risks.but the scientists who work underwater train to deal with these dangers For Jaspars,the rewards of research and underwater adventure are greater than the risks.He searches for unusual chemicals made by ocean life.then he analyzes them for ingredients(成分)that migh

4、t serve as medicines for people.The sea may seem like a strange place to look for new drugs.But organisms(生物)in the ocean have had to adapt to a tough environment.Some of the chemicals they make for survival might help people,too.More than 50 years ago,scientists discovered a new anti-cancer drug in

5、 a sea sponge.Since then,researchers have been hunting the seas for more of such useful natural products3With the help of underwater robots and small submarines,Jaspars and other scientists are searching the the seas from shallow reefs to the oceans great depths.Their goal:finding chemicals made by

6、marine life for use in one day treating human disease.Jasparsresearch has taken him from the bright blue waters around Indonesia to the Red Sea.At the age of 16,Jaspars earned his certification to dive in the cold waters off Great Britain.Later,he studied chemistry and biology.Those studies now help

7、 him figure out how to turn marine molecules into human medicines.4 Now Jaspars directs the Marine Biodiscovery Centre.Its at the University of Aberdeen,in Scotland.There he focuses on microbes living in very cold environments,such as the Arctic Ocean.Its too cold and deep to dive there he says.So s

8、cientists on research ships lift buckets of mud from the seafloor.Later,they send him small samples ofwhat theyve got from the sea.5语言点津 阿伯丁大学(the University of Aberdeen)于1495年在苏格兰阿伯丁创立,是著名的教育和硏究中心。该校是中世纪创建的四所苏格兰古大学之一,也是全英校龄第五长的大学。该大学的教学和研究水平举世闻名,拥有五名诺贝尔奖得主。阿伯丁大学的医学享有盛誉,设有英语系国家第一所医学院,胰岛素和核磁共振都是由阿伯丁大

9、学教授发明的。法学院被认为是英国的顶级法学院之一,所开设的国际法和商法尤其适合中国学生学文章文章来源来源本文选自https:/www.sciencenewsforsudents.org原文标题为“Cool Jobs:Diving for New Medicines”酷工作:潜水寻药,作者为 Elizabeth Davit6语篇解读 本文是一篇事理阐释类说明文。Spars是一位致力于海洋生物研究的化学家,出于探索海洋新药物的需要,自年轻时开始,他常在海底潜水探索。对于潜水工作的科学家来说,鲨鱼并不是海洋中最可怕的强大的海流是最致命的。7难句解读 原文：Powerful currents,crea

10、ted where the ocean floor drops away,can be just as deadly.译文:在海底急剧倾斜而下的地方所产生的强大海流,也同样是致命的。分析:这是一个主从复合句。该句后面省去了 as sharks do,是as.as引导的比较状语从句的省略。句中过去分词短语created where the ocean floor drops away作后置定语,修饰 powerful currents,而 where引导地点状语从句。8笔前点睛 审题分析 审语篇类型:这是一篇事理阐释类说明文 审人称:用第三人称进行叙述性概括。审时态:文章概括的主要时态为一般现在

11、时。审要点:通过阅读明确本文说明的主要内容是 Jaspars is engaged in searching the seas for ages等。审遣词造句:明确每段的说明要点,找出关键的词汇和关键的句式 审写作风格:尽可能与原材料的中心思想以及语言风格保持致9思路点拨 1.切不可抄袭文章原句。2.总结全文所要概括说明的中心主题,即 Jaspars is engaged in searching the seas for ages,which helps him achieve great success.3.根据不同段落划分不同意群层次。4具体信息概括化,整合多重同类信息。5运用恰当的关联

12、词、过渡词,如 although,and most importantly,still,because 6.注意控制词数在60左右。10高分范文 Jaspars devotes himself to searching the seas,whose purpose is to find chemicals for new medicines that might serve the people.(要点1)Although Jaspars experience shows the threat of deadly currents to divers he still thinks that

13、his research and underwater adventure is rewarding.(要点2)And most importantly,he has been studying chemistry and biology since he was young.(要点3)Whats more,his work has already paid off.(要点4)（66 words）11 高级语块重要短语 devote oneself to致力于 serve the people为人民服务 the threat of deadly currents致命水流的威胁 most imp

14、ortantly最重要的是 pay off得到回报高级语块12 高级句型1.Jaspars devotes himself to searching the seas,whose purpose is to find chemicals for new medicines that might serve the people(whose引导定语从句)2.Although Jaspars experience shows the threat of deadly currents to divers he still thinks that his research and underwate

15、r adventure is rewarding(although引导让步状语从句,that引导宾语从句)3.And most importantly,he has been studying chemistry and biology since he was young(since引导时间状语从句)13精彩点评 1.本篇概要写作逻辑性强,自然流畅,结构清晰,层次分明。2.高级词汇的运用大放光彩。如 devote oneself to、serve the people、the threat of deadly currents、most importantly,pay of!等。3过渡性词的

16、使用恰当,如 and most importantly、whats more等。4高级句式和复杂结构的运用让人耳目一新。如that引导的宾语从句,whose引导的定语从句,although引导的让步状语从句,since引导的时间状语从句。5.本题满分25分,本篇范文得分24分。14语境演练 Computers have changed the way a business functions to a large extent.In the past,corporate houses rented spaces for running accounting departments.It too

17、k months together to figure out profit or loss that a business had made or suffered.However,computers have become the backbone of all businesses now.Today,computers are used beyond bookkeeping(记账)purposes too.Almost everything that happens in an organization is recorded worked upon an devaluated wit

18、h the help of computers.阅读短文,根据其内容写一篇60词左右的内容概要15 lmagining our lives without computers is next to impossible.Computers were initially used only in workplaces.However,they soon became a household name,which revolutionized everything from school homework to grocery shopping.When the Internet came int

19、o being,it caused a great change in the way we functioned.Over a period of time,computers enabled working from home,which created a new type of employment.This gave usage of computers,within the confines(界限)of homes,a new part.As technology progressed,simple things such as shopping,booking tickets,b

20、uying a new house,searching for schools and colleges,researching for projects and medical information became a lot easier with entry of computers in every household16 As an indispensable tool in our lives,computers have changed the way we think in more ways than one.Today,all you have to do about fi

21、nding answers is just Google it!The online world of blogging,instant messaging,chatting and social networking not only leaves virtual traces,but unites the world in a completely unimagined way.This powerful medium is the great mode of mass communication which affects our thinking by providing people

22、 with a platform to voice their opinions and begin discussions that have brought about a change in the world17 Computers have pushed us to see different worlds and experience different cultures.The revolution in Egypt is the latest example of how computers changed the world.Today the identity of inf

23、ormation technology is computers.Invention of this machine has changed the worlds perspective bout cultures,economics,history and current affairs.The advent(到来)of computers has no doubt brought a revolutionary change in our existence._18高分范文 Computers have brought great changes in our lives for the

24、past few years.Firstly,(高分句型一)computers have changed the traditional way that people do business greatly.Secondly,computers have become an important part of our lives and benefited us in many ways.Besides,computers have changed our way of thinking.More importantly,computers allow us to experience di

25、fferent cultures without leaving home.(高分句型二)n conclusion,computers have been one of the greatest inventions.19范文解读 续写部分概括总结了电脑给我们带来的好处,采取列举的方式,如 Firstly;Secondly;Besides;More importantly;高分句型:(高分句型一)computers have changed the traditional waythat people do business greatly.该句使用了that引导的定语从句修饰先行词way,句意为电脑改变了我们做生意的方式;(高分句型二)Inconclusion,computers have been one of thegreatest inventions在最后总结时,句子使用havebeen.现在完成时表达了电脑一直是最伟大的发明之一;高级词汇 benefite使.获益;lnconc|usion总之;20谢谢观谢谢观看看 下节课再下节课再见见21