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八年级上册英语 Unit 3 I’m more outgoing than my sister. 教案2
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这是一份八年级上册英语 Unit 3 I’m more outgoing than my sister. 教案2,共4页。
学科英语年级/册八年级上册教材版本人教版课题名称Unit 3 I'm more outgoing than my sister 难点名称 掌握形容词、副词比较级的用法;正确使用对两者进行比较的句式结构。总结形容词及副词比较级的构成方式。 难点分析从知识角度分析为什么难形容词和副词的比较级构成变化方面的语法知识点较多,易混淆。例如:在构成的规则变化中1.以重读闭音节结尾并且末尾只有一个辅音字母,应先双写 这个辅音字母再加-er.2.多音节和部分双音节形容词在其前面加more。从学生角度分析为什么难由于部分学生的记忆力和理解力相对较差,很难在短时间内,掌握形容词和副词的比较级规则变化和不规则变化这么多语法知识点,还有一部分学生由于之前的音标没学好,不明白什么是重读闭音节结尾?也不清楚多音节和部分双音节形容词怎么区分?难点教学方法 通过 PPT直观演示讲解。通过让学生自己练习。教学环节教学过程导入Lead the students to watch the video and find the comparative words 知识讲解(难点突破) Step1:Explain what is the primary and comparative degree of Adjectives and Adverbs?Step2:讲解形容词,副词比较级的构成方式。1.构成的不规则变化: good / well – better bad / badly – worse many / much – more little – less far – farther / further 2.构成的规则变化:1).直接在形容词后加-er。 e.g.: tall——taller2).以不发音的e结尾的形容词直接在其后加-r. e.g.: nice——nicer3).以重读闭音节结尾并且末尾只有一个辅音字母,应先双写这个辅音字母再加-er .eg: big——bigger4).以“辅音字母+y”结尾的,先改“y”为“i”,再加-er。e.g.: happy——happier5).多音节和部分双音节形容词在其前面加more。e.g.: outgoing——more outgoing Step3:What are the differences(差异) between them? 通过6组图片的对比,向学生引出使用对两者进行比较的句式结构。 1. A+ is +形容词比较级 +than+BThe cat is bigger than the mouse.2.A +动词+副词比较级+than+BThe cat runs faster than the mouse.Step4:讲解形容词和副词原级的用法1. 讲述某人或某物自身情况时用原级。 基本句型:主语+ 谓语 + 形容词/副词原级 +…. e.g. 1) He is very old now. 2) She speaks English well. 2. 表示两者之间没有差别时,使用句型: 主语(第一个人或物) + 谓语动词 + as + 形容词/副词原级 + as + 第二个人或物 +…. e.g. 1) He is as outgoing as his younger sister. 2) Lily rode her bike as slowly as an old lady. 3. 表示第一个人比不上第二个人时,使用句型: 主语(第一个人或物) + 谓语动词(否定式) + as / so + 形容词/副词原级 + as e.g. 1) He is not so / as outgoing as his younger sister. 2) Lily did not ride her bike so / as slowly as an old lady. Step5:讲解形容词和副词比较级的用法1.讲述两者有差异, 第一个人或物超过第二个人或物时用比较级。基本句型:主语(‘A’)+谓语动词+形容词/副词比较级+than+主语(‘B’)+…. e.g. A modern train is faster than a car. 2.在形容词比较级前还可用much, even, still, a little来修饰, 表示“……的多”, “甚至……”, “更……”, “……一些”。 e.g. 1) This city is much more beautiful than before. 2) It’s a little colder today than yesterday. 3.“比较级+and+比较级”意为“越来越……” 。多音节比较级用“more and more+形容词原级”形式。 e.g. 1) It’s getting worse and worse. 2) The team became more and more popular. 4. “Which / Who is + 比较级…?”比较A、B两个人或物, 问其中哪一个较……时用此句型。 e.g. 1) Which T-shirt is nicer, this one or that one? 2) Who is more active, Mary or Kate?5. The +比较级 , the +比较级 表示“越…… , 越……” e.g. The more we get together, the happier we will be .Step6. At last,let students listen to a beautiful English song “The more we get together” Through the song ,lead students to master the use of comparative . 课堂练习(难点巩固)一.写出下列单词的比较级形式(目的是检查学生,对形容词和副词比较级规则变化和不规则变化形式的掌握情况如何),采用抢答方式完成。1. tall 2. smart 3. big 4. thin 5. early 6. happy 7.good 8.little二.用所给词的适当形式填空(目的是让学生正确使用对两者进行比较的句式结构),采用指名回答方式完成。I’m ___________ (outgoing) than my sister.2. His hair is _________(short) than Sam’s.3. Which is_________(big), the sun or the moon?4. They have _____(much)money than me.5. Does Tom run ____(fast) than you ?三、单项选择 (目的是让学生进一步掌握形容词、副词比较级的用法),采用抢答方式完成。1. Summer is ____ than winter. A. cold B. colder C. hot D. hotter2. It’s ___ to work out a plan than to carry it out. A. easy B. easyer C. easier D. more easy 小结1)比较范围:两者之间的比较,用 _比较__级;2)标志词:than 用于 _比较_ 级;3) 比较级句子结构:A +(be;实义动词)+比较级+than +B4)as+形容词、副词__原_级+as,表示和…一样
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