资源简介 Unit 3 第七课时 Grammar in Use【学习目标】1.能够理解并正确运用否定前缀non-、dis-、un-、mis-、in-、im-。2.能够掌握need to do、don’t need to do、needn’t do的用法,并运用它们表达需求。【自主预习】一、单词速查(将下列单词与对应的汉语意思连线)1.seem 重量2.empty 不健康的3.stomach 好像,似乎4.worse 生活方式5.fridge 胃6.weight 冰箱7.unhealthy 摆脱8.living 空的9.clearly 更差的;更糟糕的10.sleepy 明显的11.rid 困倦的;瞌睡的二、短语速记(根据汉语意思完成句子,每空一词)1.玲玲为了实现她的梦想,她每天早晨都不晚起床。Lingling never gets up late every morning make her dream come true. 2.吃太多的垃圾食品可能会导致你长胖。Eating junk food may make you put on weight. 3.Tom每天锻炼并且从不熬夜。Tom does exercise every day and he never late. 4.我在回家的路上被雨淋湿了,而且把手机落在了公交车上。更糟糕的是,我现在感冒了。I was caught in the rain on my way home and I left my phone on the bus. , I’ve got a cold now. 5.不要吃这种药。它不能帮助你去除你的感冒。Don’t take the medicine. It can’t help to your cold. 三、情境创生(外教Dion老师想知道你是怎么保持健康的,我们一起来跟Dion老师聊聊吧!)1.What do you have for lunch _____________________________________________________________________2.Do you often eat unhealthy food _____________________________________________________________________3.What do we need to do to keep healthy _____________________________________________________________________【合作探究】任务驱动一前缀城堡闯关闯关1 认真观察下列单词,根据构词法的规律进行归类。nonsmoker disagree unhealthy incorrectmisplace impatient dislike uncomfortableimpossible nonstop nonsense improperprefixes(前缀):non-(1) prefixes:dis-(2) prefixes:un-(3) prefixes:in-&mis-(4) prefixes:im-(5) 闯关2 前缀小达人。小组抽取单词卡片,抽取后用对应前缀(non-、dis-、un-、mis-、in-、im-)把单词变成含相反或否定意义的新单词,答错或超时则其他小组抢答。比如抽到 “smoker”,需快速说出“nonsmoker”;抽到“agree”,需说出 “disagree”。·我能总结·在单词前面加上一个词缀可以构成一个新词,这种构词法叫作派生法。加在单词前的词缀叫前缀。否定前缀是构成反义词的重要手段,通过在词根或单词前添加特定前缀,改变原词的含义,表达 “不、无、非、相反” 等否定概念。任务驱动二need 小镇探秘探秘1 两人一组,先齐声朗读下列句子,再写出黑体部分的意思。(1)I need to get some sleep now. (2)The girl is getting well and she doesn’t need to take the medicine now. (3)Kangkang needn’t do the work today. 探秘2 根据汉语意思完成句子,每空一词。(1)我们需要每天喝足够的水来保持健康。We water every day to stay healthy. (2)首先你需要打开电脑。You the computer first. (3)我需要买一条上学穿的裤子。I a trousers school. (4)你不需要来我们的图书馆,在网上续借就可以。You come to our library; just renew them online. (5)我爱周末,因为在星期六和星期天我不需要早起。I love weekends, because I get up on Saturdays and Sundays. 探秘3 生活场景需求大比拼。(1)每组依次抽取场景卡片,如 “要参加重要考试”“周末去公园游玩”“下雨天出门”“感冒生病了” 等。(2)围绕该场景,用 need to do、don’t need to do、needn’t do造至少3个合理的句子,如抽到 “要参加重要考试”,可造 “You need to review lessons carefully. You don’t need to stay up too late to study. You needn’t worry too much if you’ve prepared well.”。(3)其他小组判断句子是否正确、是否符合场景,最后评选出优秀小组。【知识探究】He became a nonsmoker in order to keep healthy. 为了保持健康,他变成了一个不吸烟的人。用法总结 in order to意为“为了……”,后面接动词原形,构成目的状语,通常用于表达直接、明确的目的。in order to既可以放在句首,也可以放在句中。例如:He got up early in order to catch the early bus.为了赶上早班车,他起得很早。知识拓展 in order that意为“为了……”,常用于引导目的状语从句,后面接一个完整的从句,从句要有主语和谓语,通常还会包含情态动词。例如:I study hard in order that I can pass the exam.我努力学习,以便我能通过考试。素养训练 用to或that填空。1.We must study hard in order we can achieve our goals. 2.The girl sits in the front of the classroom in order see the blackboard clearly. 3.Mr.Brown got up early in order catch the plane. 4.I’m saving money in order I can buy a house. 【参考答案】自主预习一、二、1.in order to 2.too much 3.stays up 4.What’s worse 5.get rid of合作探究任务驱动一闯关1(1)nonsmoker nonstop nonsense(2)disagree dislike(3)unhealthy uncomfortable(4)incorrect misplace(5)impatient impossible improper任务驱动二探秘1(1)需要 (2)不需要 (3)不需要做探秘2(1)need to drink enough (2)need to turn on(3)need to buy pair of for (4)needn’t(5)needn’t early知识探究命题点素养训练1.that 2.to 3.to 4.that 展开更多...... 收起↑ 资源预览