外研版（2019）高中英语选择性必修第一册 Unit5 Using Language 名师教学设计.docxVIP

PAGE4 / NUMPAGES4 Unit 5 Using Language 名师教学设计 课时内容 本课时涉及的是语言知识运用，包括 Past perfect和Biodiversity两部分：Past perfect讲解过去完成时的用法，帮助分类总结过去完成时的用法特点以及常见的时间状语。Biodiversity部分通过听力和阅读材料引导学生了解物种的多样性。 课时目标 1.掌握本课时的重点单词 characteristic、decline、blame、primitive和短语 be native to、make important discoveries、in particular、be harmful to、be home to、by contrast、grow up to、carry out、serve as的用法，并能在真实语境中灵活运用。 2.掌握过去完成时的用法。 3.帮助学生了解与物种多样性、自然界相关的话题内容，并能够恰当地运用功能表达询问信息、补充信息。 4.通过学习了解生物的多样性，激发学生探索大自然奥秘的热情，进而更加热爱自然、保护自然。 重点难点： 重点： 过去完成时的用法。 难点： 1.过去完成时的用法。 2.学会该部分重点单词、短语和句型的用法。 教学准备： 教师准备： 1.做好该部分内容的PPT和音频材料。 2.准备好一些关于物种多样性的图片或视频资料，让学生进一步了解自然界中生物的多样性。 学生准备： 1.课前总结和概括自己掌握的过去完成时的用法。 2.上网查找关于物种多样性的资料，获取更多以生物多样性著称的加拉帕戈斯群岛的信息。 3.预习课本内容，找出该部分的新词汇，并根据上下文猜测其含义。 教学过程： Step Ⅰ Grammar—Past perfect 1. Do Activity 1 on Page 53. Look at the sentences from the reading passage and answer the questions. ·In sentence (a), which action happened first,“suspected”or“evolved from a common ancestor”? ·In sentence(b), which action happened first,“refused to believe”or“evolved from lower forms of life”? ·What does the structure had done indicate? Suggested answers： ·In sentence (a),“evolved from a common ancestor”happened first. ·In sentence(b), “evolved from lower forms of life”happened first. ·It indicates the action happened before a certain past action. 2. Give more examples with the past perfect tense. Guide students to summarise its use in their own words. Then ask them to give examples. 3. Do Activity 2 on Page 53. Complete the paragraphs with the information from the given sentences. The sentences are in the order in which they happened. They can help you to decide the use of tenses. (1)a Natural disasters led to food shortages in the 1960s. b Yuan Longping began to do research on hybrid rice. c Yuan Longping developed a better type of rice. Yuan Longping①____________to do research on hybrid rice because natural disasters②____________food shortages in the 1960s. In the end, he③____________ a better type of rice. (2)