外研社八年级上册英语导学案
课 题 Module 12 Help Unit 1：What should we do before help arrives
课 型 听说课 课 时 共二课时 备课人：袁哲
教学过程
【自主学习】（Listening and reading）(请同学们在预习时独立完成下列学习内容） 1、Listen to the tape carefully, and finish Activity 2 . Read and finish Activity 3. 2、Underline the following expressions in the conversation and translate them. 急救 提供基本的医疗帮助 想象做某事 在...的底部 发出声 疼痛 首先、第一 弄清楚 ...怎么了？ 处于困境中 做什么有困难 喊人帮忙 使......怎么样 抬起、提起 对...有害 基本的医疗训练 确保、确信 上楼梯 下楼梯 上下楼梯 用...覆盖... ...被...覆盖 But he could have trouble hearing you or speaking to you. You could drop him and hurt him even more. That’s such good advice that you could be a doctor, Betty! 【小组群学】语法：情态动词 1、情态动词的基本用法： 情态 动词意义和用法例 句can表示能力，意为“能，会”，可与be able to转换Sam can speak English well.在疑问句中，表示请求、允许，意为“可以”Can I borrow your book couldcan的过去式，意为“能，会”，表示过去的能力。I could play chess when I was ten.在疑问句中, 表示请求、允许，语气比can委婉。Could I have a cup pf tea may表示请求、允许，意为“可以”You may call me anytime.might①为may的过去式，②表推测：意为：“可能、也许”He asked me if he might go home.在疑问句中，表示请求、允许，语气比may委婉。Might I smoke here must表示主观的看法，意为“必须，应该，一定”，其否定为mustn’t,意为“禁止、坚决不能、不可以”You must go back home before ten o’clock.should表示要求和命令，也可以表示劝告和建议，意为“应该”，否定为shouldn’t,意为“不应该、不能”。We should keep the air fresh. We shouldn’t kill animals.need表示需要，主要用于否定句和疑问句中You needn’t say sorry to me.shall常用于主句为第一人称的疑问句，表示请求。Shall I turn on the lights have to意为“不得不”，表示客观原因We have to stay at home because of the heavy rain.had better意为“最好”，后跟动词原形We’d better go there by bus.
情态动词表推测 No, that could be harmful! 译为： “could”在此句意为： Betty, you must know! 译为： “must”在此句意为： 情态动词意 义用 法 肯定 推测must 意为“一定、肯定”（100%的可能性）表示非常肯定、非常有把握的推测can\may有可能、也许（50%-60%的可能性）用于肯定句，表示把握不大的推测might\could有可能、也许（20%-30%的可能性）表推测，语气缓和，委婉，不确定否定 推测can’t“一定不、肯定不”可能性为零表示非常肯定的否定，语气强烈may not意为“可能不、也许不”表示否定推测，语气不确定
【达标测评】独立完成以下达标测评题。 1. According to the air traffic rules, you _____ switch off your mobile phone before boarding. A. may B. can C. would D. should 2. ---- I can’t find my purse anywhere. ---- You ______ have lost it while shopping. A. may B. can C. should D. would 3. You eat the soup if you don't like it. A. shouldn't B. mustn't C. needn't D. can't 4. She _______ be here . I saw her come in. A. can B. may C. should D. must 5. — Who’s singing in the next room Betty — It ____ be her . She has gone to New York. A. can’t B. must C. shouldn’t D. can 6. According to the new traffic laws, people ______ drive after drinking wine or beer. A .wouldn’t B. couldn’t C. needn’t D. mustn’t
