A journey of discovery新外研版高中英语选择性必修一Unit5课件.pptx

U5 Revealing natureA Journey of Discovery(Starting out Understanding ideas)钦州市第四中学英语组 Starting outWhat do you know about these animals? What makes them special?What other similar animals do you know about? Share your knowledge with the class.Look at the page from a science magazine and 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 indicate that the nautilus has survived relatively unchanged for around 500 million years. Starting outWatch the video and answer the questions Starting outWatch the video and answer the questionsHow can seeds travel? How can this benefit plants?Plants can have a better chance at life.by the windby waterby animals Seeds Traveling① by itself 2. Can you think of another example of seeds travelling?② by the wind③ by the water⑤ by the animals⑥ by the insects④ by the birdsStarting outWatch the video and answer the questions What species do you recognise in the picture?evolutionarytreeUnderstanding ideasLook 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 evolution? Understanding ideasA Journey of Discovery Who made this discovery?What is the discovery?How did he make the discovery?Charles Robert DarwinThe theory of evolutionThe Origin of SpeciesPre-reading Choose the main idea of the passage and give your reasons.Darwin’s interest in various living things made him a great naturalist.Darwin’s journey on the Beagle inspired his Theory of Evolution.Darwin went on a journey to confirm his theory that humans had evolved over time. Pre-reading Skim the passage and choose. Whats the genre of the passage?ExpositionArgumentationNarrationWhat Where Who Why How Pre-readingA Jou