外研版（2019）必修 第二册Unit 6 Earth first Starting out & Understanding ideas名师教学设计

Unit 6 Starting out & Understanding ideas名师教学设计
课时内容：
本课时包括Starting out和Understanding ideas两部分，话题是环境遭到破坏、野生动物濒危。Starting out是导入部分，通过观看一则环保主题公益广告的视频及四幅环保主题的漫画——海水垃圾、砍伐树木、工厂废气排放、全球变暖，将学生导入“环境破坏和恶化”的话题，能快速、直观地唤起学生的环保意识，增强保护环境的决心。Understanding ideas部分以电影《大白鲨》导入主题，陈述人们对大白鲨的印象，从而引出鲨鱼的真实本性、对人类地杀伤力以及现在的处境，让人们理性分析、认识问题，摒弃片面的认识，更全面地了解鲨鱼地生存状况。
课时目标：
1.认知并灵活运用本课时的重点词汇scare, dive, target, fortunately, extinction, attitude, in fear, due to, by mistake等。
2.通过速读、精读等方式，引导学生由浅入深，逐层推进，加深对文章的理解，并掌握不同的阅读技巧和方法。
3.通过阅读短文，了解外表凶猛、令人恐怖的鲨鱼的真是习性和处境，让学生全面地看待问题，从自我做起，保护野生动物，保护环境。
重点难点：
重点：
学习、掌握本课的重点词汇scare, dive, target, fortunately, extinction, attitude, in fear, due to, by mistake等，并能在具体语境中选用合适的形式，灵活运用。
难点：
通过解决阅读阶段所设置的题目，让学生学会分析问题、解决问题、理清文章脉络、提高阅读水平。
教学准备：
教师准备：
1.做好该部分内容的视频材料、PPT以及音频素材。
2.设计好阅读理解题目，利用不同方式拓展语言点，激发学生兴趣。
学生准备：
1.在网上搜索了解野生动物的栖息地、生存现状以及切实可行的保护措施。
2.预习Starting out和Understanding ideas两部分内容，通过查字典等方式提前解决词汇问题。
教学过程：
Step I Starting out
1. Watch the video and answer the questions.
(1) Which of the facts in the video do you find most alarming.
(2) What does the video want to tell us.
2. Look at the cartoons and answer the questions.
(1) What environmental problem does each cartoon refer to
(2) What are the causes of these problems
(3) What should be done to help solve the environmental problems
【设计意图】通过观看公益广告的视频和环保主题的漫画，导入话题，给学生以直观的印象，促使学生了解地球面临的一些环境问题，进而去分析产生这些问题的原因。
Step II Reading
1.Pre-reading
Do Activity 1 on Page 62.
Tick the words that could describe sharks and add any more you can think of.
【设计意图】通过活动，激活学生对鲨鱼的已有认知，帮助学生提前熟悉语篇话题，为学习课文做铺垫。
2.Fast reading
Do Activity 2 on Page 62.
Read the passage and find out how sharks are described in the film jaws.
Keys:
Sharks are described in the film as dangerous and bad animals that eat humans.
【设计意图】考查学生快速查找信息的能力。
3.Careful reading
Read the passage again and retell the text.
4.Language points
Master the words and phrases：
scare, dive, target, fortunately, extinction, attitude, in fear, due to, by mistake
【备注】知识点讲解详见第二教案。
5.Post-reading
（1）Finish Activity 3 on Page 64.
Choose the author’s purpose in writing the passage.
Keys:
2
【设计意图】此类题目需学生认真间读，领会作者的写作意图，不要掺杂个人观点，要在字里行间找出作者的真实意图。
（2）Finish Activity 4 on Page 64.
Complete the chart showing how attitudes towards sharks have changed with words and expressions from the passage.
Keys:
1 as dangerous animals
2 sharks were bad animals that ate humans
3 swimming in the sea
4 fish for sharks
5 fear of sharks and finning
6 was wrong about sharks’ behaviour
7 to protect
8 sharks do not see people as food
9 understanding sharks
10 protect sharks from extinction
【设计意图】通过思维导图的形式，清晰地呈现出人们对鲨鱼的恐惧、电影《大白鲨》对人们对鲨鱼印象的影响、人们反对因鱼翅大肆捕杀鲨鱼。通过这种方式，有助于学生提取关键信息，归纳概括原文内容，锻炼学生概括归纳的能力。
Step III Sum up
1.总结本节课的重点词汇 scare, dive, target, fortunately, extinction, attitude, in fear, due to, by mistake和句型，采用表格、思维导图等形式更清晰地了解它们的用法，形成知识脉络。
2.让学生利用关键词提示的方式，用简短的英语概括文章主要内容。
3.通过本课的学习，让学生清晰地认识鲨鱼的生存状况，从而唤起他们的环保意识，增强环保的迫切感和责任感，为保护环境、保护野生动物、保护大自然出一份力。
Step IV Homework
1.Sum up what we learned in class and take notes.
2.Preview the next period.
板书设计：
Unit 6 Earth first Period I Starting out & Understanding ideas I. Starting out 1. Watch the video and answer the questions. 2. Look at the cartoons and answer the questions. II. Reading 1. Pre-reading 2. Fast reading 3. Careful reading 4. Language points Master the words and phrases: scare, dive, target, fortunately, extinction, attitude, in fear, due to, by mistake 5. Post-reading III. Sum up IV. Homework
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