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课件网) （外研版选择性必修一）高中英语 Understanding ideas Revealing nature Unit5 Learning Aims: After the class, students can collect useful expressions about scientific discoveries； deeply understand the journey of Darwin's significant discovery; better understand the scientific spirit of overcoming difficulties and bold exploration as well as the spirit of innovation. Look at the evolutionary tree and answer the questions. An evolutionary tree Lead-in 1 What species do you recognize in the picture 2 What factors can cause the process of evolution What species do you recognise in the picture An evolutionary tree algae(藻类） moss (苔藓） fern(蕨类） gymnosperms(裸子植物） angiosperm(被子植物） paramecium (草履虫-单细胞生物） jellyfish 水母腔肠动物 flatworm (扁形动物） earthworm (蚯蚓-环节动物） snail蜗牛 (软体动物） starfish (棘皮动物） crab螃蟹 (节肢动物） fish turtle海龟 (爬行动物） frog青蛙 (两栖动物) bird zebra斑马(哺乳动物） human(哺乳动物） Plants Animals Look at the evolutionary tree and answer the questions. Evolve lower forms of life higher forms of life Lead-in An evolutionary tree 2 What factors can cause the process of evolution water land For living places For life levels 3. When talking about evolution, which scientist can come to your mind proposed the theory of evolution Published on the Origin of Species ... Charles Robert Darwin Feb 12th, 1809—Apr 19th, 1882 Quiz A Journey of Discovery Can you guess the genre of the passage Narration 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. Choose the main idea of the passage and give your reasons. Pre-reading Read for the main idea 1835 1859 Today 1831 After in order of_____ time Para 1 Para 2-5 Para6-7 Charles Darwin a geologist and naturalist. fascinated by rocks, plants and animals. How did different species come to exist collecting things asking himself a question: Para 2： During his journey Read for the detailed information study various living things in their natural environments VS people Darwin All species had appeared on earth at the same time, and had not changed since Animals evolved as they adapted to their changing environments Noticed Para 3： Generate ideas 1. In which aspect were these finches different？ 2. What caused their differences Their beaks Food available on that particular island Noticed Para 4 Look for more evidence A common ancestor Para5 Develop ideas Initially: Gradually: Today: Para 6-7 Propose a theory A theory of evolution On the Origin of Species was published in 1859. shocking , refuse to believe convencing, start to believe groundbreaking,transformative In 1831 In 1835 In 1859 The publish of the book. last for 28 YEARS Think and Share What kind of person was Darwin according to the passage Plymouth, England Curiosity Pers ... ...
