高二英语导学案高二英语导学案Unit 4 Global warming课标要求：1. 话题：Global warming, pollution and the importance of protecting the earth1. 词汇，词组，句型2. 功能：同意与不同意（Agreement and disagreement）; 责备与抱怨（Blame and complaint）3. 语法： “IT”的用法（the use of “it”）内容概述：本单元主题是人类当今面临的环境问题，主要探讨了“全球变暖”和“节约能源”等方面的问题。教学重点：1使学生了解全球变暖和其影响。 （get students to know about global warming and its effect; to realize what we can do about global warming.）2使学生学习并识记关于本单元话题的有关词汇和表达方式。(have students learn some useful new wards and expressions about global warming and let them learn effective ways to master them.)3使学生学会使用关于同意与不同意，责备与抱怨的相关表达方式。(enable students to grasp and use the expressions of agreement and disagreement, blame and complaint.)4学习“IT”的语法相关知识。(let students learn the new grammar item: the use of “it”)5发展学生的听，说，读，写能力。(develop students listening, speaking, reading and writing ability.)教学难点：1掌握“IT”的用法。(enable students to master the use of “it”)2写作：解决全球变暖的方法和途径. (let students learn to write a short passage to tell others how to solve the problem of global warming.)3发展英语综合技能。(develop students integrative skills)课时安排：Periods needed: 7Period 1 Warming up, Pre-readingPeriod 2 Reading and ComprehendingPeriod 3 Language StudyPeriod 4 GrammarPeriod 5 Using languagePeriod 6 WritingPeriod 7 Summing upPeriod 1 Warming up, Pre-reading课型： 热身，预读知识要点：1. 重点单词和短语：consume; come about; random; phenomenon; subscribe; subscribe to; fuel; quantity; quantities of; tend; go up; per; data; result in; trend; catastrophe; flood; oppose; opposed; be opposed to; consequence; state; range; even if; keep on; glance; steady; steadily.2. To learn about some facts and views about global warming.3. To learn how the information is organized.教学过程：Step 1 Warming up1. Warming up: (Page 25)2. Warming up by discussion:Things that use energySources of energyRenewable/non-renewablelightscoalnon-renewableheatingoilnon-renewabletelevisionnatural gasnon-renewablecassette playerwind powerrenewablecomputersolar energyrenewablefridgenuclear energynon-renewablestovehydro-electric powerrenewablehairdryerbiomass energyrenewablegeothermal energyrenewabletidal energyrenewableStep 2 Pre-reading:1. Show a picture of a greenhouse to students and ask them what a greenhouse is made of and what its purpose is.How it works?2. Ask students what they think “greenhouse gases” are and what they think greenhouse gases do. Look at the picture above and explain it to their partners.Step 3 课堂练习：单词拼写：1. You are supposed to be able to foresee the c of the incident.2. The boy had a g at the table and found some candies within his reach.3. We strongly o building new bridges without taking measures to protect the old temple.4. He said he sold goods r from TV sets to radios.5. One with a m character often goes along with others better.完成句子：1. Differences between American English and British English 发生 in the nineteenth century.2. The quarrel between the two boys finally 导致 a fight, with one seriously injured.3. Fewer young people 依赖 their parents nowadays for food and apartment.4. 毫无疑问 natural gas will run out one day.5. Tim still goes to work 即使 it is Sunday.Step 4 Homework: 预习阅读部分的重点单词和短语。Period 2 Reading and Comprehending课型：阅读课学习目的： 1 训练阅读技巧，培养快速阅读，猜词，找中心句的能力。2 掌握部分知识点。3 几个复合句的理解教学过程：Step 1 Check-up and lead in（展示预习成果和导入新课）1. Get two memebers of different groups to come to the Bb and check up their prevision tasks, one group to do the following task:Find the words or expressions for each of the following meanings from the text.A._ to use upB._ to expressC._ to take a quick lookD._ to take care of E._ for each F._ sudden great disasterG._ to support H._ not agree I. _ gentleThe other group is to report their prevision of the warming-up part.2. Get the Ss to look at the pictures and the title of the reading passage and predict the content and then lead into the new lesson.通过看图片和标题对课文内容进行预测，培养学生预测阅读内容的能力。同时通过预测激起进一步探究的好奇心，顺理成章的引入新课。Step 2 Fast reading（速读）1. Read the passage quickly and find out the answers of these questions, using skimming and scanning skills. 1) Who wrote the magazine article? Whats the name of the magazine?2) What are the names of the three scientists mentioned in the article? 3) What are the two graphs about? 2. Read the text quickly and find out the two topics of the passage.Topic one： _Topic two ：_3. Skim the text and match the main idea with each paragraph.Para1 A the cause of the earths becoming warmerPara2 B the consequence of burning fossil fuelsPara3 C the increase of carbon dioxidePara4 D Global warming will go onPara5 E puzzles about global warmingPara6 F different attitudes to global warmingPara7 G an introduction to the passage通过设计三个问题引导学生运用略读策略快速了解课