Unit 5 Starting out & Understanding ideas （ppt课件）-2023新外研版（2019）《高中英语》选择性必修第一册.pptx

1、U5 Revealing natureA Journey of Discovery(Starting out&Understanding ideas)钦州市第四中学英语组Starting outStarting out1.What do you know about these animals?What makes them special?2.What other similar animals do you know about?Share your knowledge with the class.Look at the page from a science magazine and

2、answer the questions.The researchers said the ancestor of the Komodo dragon most likely evolved in Australia and spread westward,reaching the Indonesian island of Flores 900,000 years ago.The oldest discovered fossil of the modern platypus dates back to about 100,000 years ago.Fossil records indicat

3、e that the nautilus has survived relatively unchanged for around 500 million years.Starting outStarting outWatch the video and answer the questionsStarting outStarting outWatch the video and answer the questions1.How can seeds travel?How can this benefit plants?Plants can have a better chance at lif

4、e.by the windby waterby animalsSeeds TravelingSeeds Traveling by by itselfitself 2.Can you think of another example of seeds travelling?by the by the windwind by the by the waterwater by by the the animalsanimals by the by the insectsinsects by the by the birdsbirdsStarting outStarting outWatch the

5、video and answer the questionsWhat species do you recognise in the picture?evolutionarytreeUnderstanding ideas Look at the evolutionary tree and answerParamecium(草履虫)earthworm(蚯蚓)snail(蜗牛)crabfishtortoisebirdalgae(藻类)fern(蕨类)moss(苔藓)treehumanhorsestarfishfrogWhat factors can cause the process of evo

6、lution?Understanding ideasUnderstanding ideasA Journey of DiscoveryA Journey of DiscoveryWho made this discovery?Who made this discovery?What is the discovery?What is the discovery?How did he make the discovery?Charles Robert Charles Robert DarwinDarwinThe theory of evolutionThe theory of evolutionT

7、he Origin of SpeciesThe Origin of SpeciesPre-readingPre-readingChoose the main idea of the passage and give your reasons.1.Darwins interest in various living things made him a great naturalist.2.Darwins journey on the Beagle inspired his Theory of Evolution.3.Darwin went on a journey to confirm his

8、theory that humans had evolved over time.Pre-readingPre-readingSkim the passage and choose.Whats the genre of the passage?Exposition Argumentation NarrationPre-readingPre-readingA Journey of DiscoveryDarwinQuestion:how did different species come to exist?England South America Galapagos Islands By sh

9、ip Beagle183118351839On the Origin of Species1Why was Charles Darwin a disgrace to himself and all his family?ABecause he learned medical in the school.BBecause he decided to visit distant countries.CBecause he went for adventures after school.DBecause he left medical school with no degree.While-rea

10、dingWhile-readingRead the passage carefully and choose the best answer.It was a young man who had left medical school without completing his degree.Whats more,he had recently received a letter from his father predicting that he would be“a disgrace to yourself and all your family”.2Whats Darwins favo

11、urite subject?ALong distance journey.BLiving things.CMedical degree.DNatural environment.While-readingWhile-readingRead the passage carefully and choose the best answer.The young man in question,Charles Darwin,was a geologist and naturalist,fascinated by rocks,plants and animals.3What did Darwin dis

12、cover first?AAll species appeared at the same time.BAll species had never changed.CSome species were very similar.DThe evidence for changing environments.While-readingWhile-readingRead the passage carefully and choose the best answer.The young man in question,Charles Darwin,was a geologist and natur

13、alist,fascinated by rocks,plants and animals.4Many factors affect the evolution except _.AtoolsBancestor CenvironmentDfood5How did the people then react to Darwins discovery first?ARespected.BRefused.CAccepted.DBelieved.While-readingWhile-readingRead the passage carefully and choose the best answer.

14、Many people refused to believe that living things,including humans,had evolved from lower forms of life.Para.1 Para.2 Para.3 Para.4 Para.5 Para.6 Para.7 Introduction On his journey Generate ideas Look for more evidenceDevelop ideas Propose a theoryConclusionWhile-readingWhile-readingRead for structu

15、rel come to exist?l Maybe animals evolved as they adapted to their changing environmentsl had evolved from a common ancestor.l arrived on the islands a long time beforel samples of the plants and animalsl very similar to each other.l had evolved from lower forms of lifel there was a difference betwe

16、en the finches on each of the islands.l had evolved according to what food was available on that particular islandasked himself a question asked himself a question(generated an idea)(generated an idea)answered the question(developed an idea)1835published the book(proposed a theory)1839 started his journey(1831)Post-readingPost-readingRetellingPost-readingPost-reading1.What kind of person was Darwin according to the passage?2.What have you learnt about the spirit of scientific exploration?Watch and ReflectThank you!