Unit 5 Revealing nature Starting out 课件-2023-2024学年高中英语外研版（2019）选择性必修第一册

Revealing nature Startng out 1 What do you know about these unusual animals ？ Lead in Komodo dragon Komodo dragons were first encountered by Western researchers 1910. The researcher said the ancestor of the Komodo dragon most likely evolved in Australia and spread westward, reaching the Indonesia island of Flores 900,000 years ago. 3 What do you know about these unusual animals ？ Duck-billed platypus The fist scientists to examine a preserved platypus body judged it a fake in the late 18th century. The oldest discovered fossil of the modern platpus dates back to about 100,000 years ago. Nautilus Fossil records indicate that the nautilus has survived relatively unchanged for around 500 million years. It is often considered a “living fossil”. Watch the video and answer the questions. Viewing 1.How can seeds travel ? 2.How can this benefit plants? 1.How can seeds travel ? Seeds usually are carried by the wind, water, and animals. Plants can have a better chance at life. 2.How can this benefit plants? • Dandelion seeds have little parachutes to catch the wind and go further; • Humans can spread seeds if seeds get stuck to their clothing or shoes. Can you think of another example of seeds travelling ?Share it with the class. thank you Lavf52.84.0 $$