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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,*,*,*,Our whole universe was in a hot dense state.Then nearly 14 billion years ago expansion(膨胀)started,1,Unit 4,How Life Began,on the Earth,2,Review,The origin of life has many theories,some,legendary,(神话传说的),some _,and some _.,religious,scientific,legendary,3,Do you want to know,the,scientific,theory,of,how life began on the earth,?,4,Do you know the physical term,-“The Big Bang Theory”?,All started with,“the big bang!,”,5,How Life Began on the Earth,Reading Comprehension,之阅读理解题指导,6,Parts of this class(本堂课步骤),以Unit4 reading为载体,学习阅读理解中,说明文的阅读方法,及,解题方法技巧,：,1,Prediction,读前预测,2,Skimming,略读,获取大意,3,Locating,and find answers 定位回读完成阅读理解题,4,Make,up relevant,questions,自主读文章,小组出题,7,Step1,Pre-reading,:,Predict,the writing,style,order,and,content,Writing style decides the reading methods,such as,说明文/议论文,：,Skim首末段,首末句,Opinion,记叙文,：,看题目,再回读,发展,与,情感,8,How life began on the earth,Read the title and the first few sentences,and then try to,guess,:,1,the,writing style,of this passage,2,the,writing order/sequence,(写作顺序),3,what might be talked about,in the passage,9,Writing style,Exposition,Narration,Argumentation,10,Writing order(写作顺序),firstlysecondlythirdlyfinally,at the beginningthennext later after thatin the end/finally,some people think-while others think-in my opinion,Timeline,11,Main Content,How _began on _,life,the earth,12,Step 2:,Skimming,略读重要部分,以了解文章的大意,Read the passage very quickly to find out,how many parts,can the passage be divided into?,the,main idea,of the passage;,13,How many parts can the passage be divided into?,Two parts,:,The first part(Para.1-3):,how the,earth began,The second part(Para.4-5):,how,life developed/evolved,on the earth,14,Main idea,This passage mainly talks about,_and_,15,主旨题：What is the,main idea,of this passage?,A.It is about the earth.,B.How life began to appear on the earth.,C.Water plays an important role in the development of life.,D.How the earth began and how the life developed on the earth.,D,16,总结,主旨题,正确选项特征,：,概括的范围大小正好,解题方法技巧：,反向推理,17,What is the,main purpose,of the third paragraph?,To tell us how water came into being,To explain why water is important to life,To explain why there is no life on the Mars,To introduce water,B,Practice,18,Step 3:回读与做题,（scan略读定位+study细读找参考答案）,19,词义猜测题及指代题,What does“small clever animals”refer to,in the last paragraph?,A.Insects.B.Reptiles.,C.Dinosaurs.D.Humans.,D,The word“multiply”(Line 4,the 4th paragraph)means _.,A.乘以 B.繁殖 C.减少 D.分解,B,20,总结,词义猜测和指代题解题步骤：,一,定位,：,KEY WORDS定位回读,二,替代,：,语境替代,21,What is the meaning of the word“,presence,”in this sentence“the continued,presence,of water allowed the earth to dissolve harmful gases and acids into the oceans and seas”?,A.gift,B.appearance,C.existence,D.chairman,C,Practice,22,推测题,The author,implies(暗示),that if we want the life to continue on the earth,we should_?,A.cut down the population.,B.solve the problem of global warming.,C.think about a new way to grow more crops.,D.not waste water.,B,23,细节题,How did the earth come into being according to the timeline?,a.The earth became a solid globe/ball.,b.The earth was a cloud of dust.,c.Water appeared on the earth.,d.The universe began with a“Big Bang”.,e.The atmosphere formed.,A.a-b-d-e-c B.d-c-a-e-b C.d-b-a-e-c,D.d-b-e-a-c,C,24,总结,推理题、细节题解题步骤：,一,定位,：,KEY WORDS定位回读,。,二,对照,（,排除,）,25,Why was it necessary for plants to grow before animals?,A Animals needed plants to protect them from the sun.,B Plants provided oxygen for animals to breathe.,C Animals could hide from hunters,in forests.,D It was easier for plants to grow,B,Practice,26,Can you put the development of life into time order?,a,insects and amphibians,b,reptiles,c,shellfish and other fish,d dinosaurs,e,small plants in the water,f,plants on dry land,g,mammals(including humans),A.d-b-g-e-f-c-a B.e-c-f-g-c-a-b,C.e-c-f-a-b-f-g D.e-c-f-a-b-d-g,D,Practice,27,略读,概括,定位,替换,定位,对照,一：阅读理解题型,做题方法,：,Predict：,读前预测,文体,决定相应的阅读重点,Skim：,快速阅读,并总结,获得文章大意或主旨,回读：,根据题干中的,Key Words回读,文章,找参考答案,二：阅读理解五种,题型,主旨题：,猜词义：,指代题：,推断题：,细节题：,Summary,28,Your show time,以大组为单位,根据文章内容,每组出一个阅读理解选择题：,1.主旨题,Whats the main idea of?,2.猜测词义、指代题,What does the underlined word“”refer to?,3.推断题,What can be inferred from?,4.细节题,Which of the following is(NOT)true?,29,Assignment,1,Finish the Ex.1,2,3 on Page27.,2,Each row hand in a high quality questions based on the passage,the good ones will be on shown,30,Thank You,31,
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