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pay attention to while doing a debate such as manners, points and voices. 2) Ask students to practice their debate after class and get prepared before ing back. 4. Presenting/ debate A 5minute debate on the theme of man and nature to see if students have known what to do and how to do. [Explanation] 一般來說每個班會有 50人左右,分成 12組則每組 4至 5人,保證每個學(xué) 生都能發(fā)揮作用。 Step 4 Homework (PPT14) 1. Read the passage on page 59 about GM food 2. Collect as much information as possible about GM food. 3. Make a pro and anti list, prepared for a ing debate. [Explanation] 要求學(xué)生課后對一個并不熟悉的話題查找資料,為真正的辯論做好準備,這是對于課堂知識的運用,也是鞏固。在學(xué)生小組討論過他們的觀點后,播放一段辯論賽的錄像,可以讓學(xué)生觀察一下辯手是如何表現(xiàn)的,需要在辯論過程中注意什么,不需要老師多說學(xué)生自然可以體會的到,這就避免學(xué)生做無用功。學(xué)生或多或少對辯論有點了解,因此讓他們利用已有的知識積累來推進課堂的進展是很有好處的。而人是科學(xué)的核心,由這一點引入人與自然的話題。通過頭腦風(fēng) 暴、小組討論、以及辯論片段展示等手段讓學(xué)生充