高三第四單元課件ppt-wenkub.com
2024-11-13 11:06 本頁(yè)面
【正文】 Unit 4 Green world Reading Step One Leadin ?What are the flowers in the pictures? ?What uses do you know about them? Step Two Prereading amp。 listening Why was Carl Linnaeus important to the history of botany as a science? Carl Linnaeus developed a new system to classify the plant species. Step Three Skimming did botany bee a special science? 2. How was plant species classified before the work of Carl Linnaeus? After the eighteenth century. Plants are classified into herbs and trees, according to the shape of the fruit, or whether they had flowers or not. ?3. What is the difference between Linnaeus’ system and that of the other scientists? 4. Was Daniel Solander a member of the Royal Society? In Linnaeus’ system, the identification of different species was based on the arrangement of the male and female ans in the flowers, while the other scientists classified plants into herbs and trees, according to the shape of the fruit, or whether they had flowers or not. No, he wasn’t. 5. What did Joseph Banks do on the threeyear voyage? 6. What was the relationship among the three persons? On their threeyear voyage, Joseph Banks did not only study and describe new plants he found, he also looked out for new economic species and became the first to move crops from one continent to a
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