2020届高三英语二轮复习---说明文阅读及技巧教学ppt课件

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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2020/2/19,#,说明文阅读及技巧,Reading guide for expository articles,说明文阅读及技巧Reading guide for exp,1,1,Passage,Guided,reading,1PassageGuided,2,He Jiankui,Whats behind the creation?,Is this helpful?,this,Subtitles,What does the passage introduce?,Paragraph 1,What is the,creation,?,He JiankuithisSubtitlesWhat do,3,Topic,A Chinese scientist,He Jiankui of Southern University of Science and Technology,claimed in a video on Nov.25,2018 that he had used CRISPR-Cas9 to edit embryos for seven couples,with two twin girls resulting so far.He said his goal was to try to make the babies resistant to HIV.,A Chinese scientist,He Jiankui,claimed,used CRISPR-Cas9 to edit embryos,two twin,girls resulting,to try to make the babies resistant,to HIV,creation,Paragraph 1,Underline key information,TopicA Chinese scientist,He J,4,Type of writing,What is the,purpose,of the passage?,To give advice,To explain an issue,To describe a phenomenon,To argue for an opinion,说明文,exposition,Type of writingWhat is the pur,5,(,2018,常州期中卷:,C,篇,64,题),The main,purpose,of the passage is to_.,A.,advocate,widespread road use charges,in all Australian cities,B.,confirm,road user charging is the best way to ease congestion,C.,present,study findings on how road use charges ease congestion,Type of writing,(2018常州期中卷:C篇64题)A.advocate,6,Understand an exposition,新课标,中心思想,说明方法,情感意图,What to explain,How to explain,Why to explain,Understand an exposition新课标中心思,7,Tip1,万变不离其“中”,Focus on,to grasp the,main idea,first and last paragraphs,key sentences,title and subtitles,Tip1 万变不离其“中”Focus onfir,8,Passage outline,Part1:,Part2:Whats behind the creation?,Part3:Is this helpful?,What are peoples attitudes?,What is CRISPR-Cas9?,How did He make the creation?,technology,creation,attitudes,Prediction,Passage outlinePart1:What are,9,What is,Julians,attitude?,However,many mainstream scientists think it is too unsafe to try.,key sentences,What does the word“,monstrous,”mean?,A.huge B.ugly C.unnatural D.immoral,“Gene editing is experimental and capable of causing,social and ethical,problems.”,Part3 Attitudes,What is Julians attitude?Howe,10,Tip2,Guess the meaning,Dominant,languages such as English,Spanish and Chinese are increasingly taking over.(2018,课标全国,I,C,篇,),Complex B.Advanced,C.Powerful D.Modern,taking over,字面推测,literally,语境推测,context,做个学霸,vocabulary,Tip2 Guess the meaning,11,Details,Part 2 Technology,DetailsPart 2 Technology,12,Which of the following statements is true?,A.CRISPR,-Cas9,was used in the first step,of the creation.,B.CRISPR made of a bacterial enzyme is,used to edit certain genes,C.CCR5 is a protein that allows HIV to,enter a cell.,D.The chosen sperm should be processed,first to avoid HIV virus.,How to understand the terms?,Which of the following stateme,13,Details,Understand the terms,CRISPR,is a guide molecule made of RNA,which targets a specific site on the,DNA,double helix.,CRISPR,is attached to Cas9,a bacterial enzyme that works as a pair of molecular scissors to cut the DNA at the exact point required.,C,M,R,H,M,9,E,C,Relation and logic,Details Understand the terms,14,He Jiankui sought to disable a gene called CCR5 that forms a protein doorway that allows HIV,the virus that causes Aids,to enter a cell.,that,that,doorway,HIV,Details,Understand“that”,that,He Jiankui sought to disable,15,Understand the process,He said the gene editing occurred during the following,process,.First,sperm was“washed”to separate it from semen,in which HIV can hide.Next,a single sperm was placed into a single egg to create an embryo.Then the gene-editing tool was added.,Details,Landmarks(,路标词,),process,Understand the process He sa,16,Which of the following statements is true?,A.CRISPR,-Cas9,was used in the first step,of the creation.,B.CRISPR made of a bacterial enzyme is,used to edit certain genes,C.CCR5 is a protein that allows HIV to,enter a cell.,D.The chosen sperm should be processed,first to avoid HIV virus.,Details,“FirstNextThen,the gene-editing tool was added.”,last,Order,颠三倒四,“CRISPR is a guide molecule made of,RNA,”,RNA,Subject&object,张冠李戴,“a,gene,called CCR5 that forms a protein doorway”,gene,Concept,偷换概念,Paraphrase,换个马甲还是我!,“sperm was“,washed,”to separate it from semen.”,Which of the following stateme,17,Tip3,Replace with,Seek,to understand the,relation and logic,simple letters,terms,变身,ABC,,理关系和逻辑,landmark words,(,路标词,),Tip3Replace with s,18,Overview of Passage 1,What is the,authors attitude,?,objective,He Jiankui,Overview of Passage 1What is t,19,Vocabulary,:,attitudes,positive,supportive,approving,favorable,negative,disapproving,dissatisfied,critical,worried,concerned,objective,neutral,unprejudiced,one-sided,balanced,Vocabulary:attitudespositiv,20,2,Passage,Independent,reading,2PassageIndependent,21,Analyze the questions,(,2018,江苏高考,C,篇),1.The author mentions car industry at the,beginning of the passage to,introduce,_.,2.What does the author want to illustrate,with the,example,in paragraph 2?,3.What is the,difficulty,for those new
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