2022八年级英语上册Unit3ImmoreoutgoingthanmysisterSectionA第2课时GF_3c教学课件新版人教新目标版.pptx

八年级英语（RJ上） 教学课件Unit 3Im more outgoing than my sister.Section A (GF-3c)Learning TargetsKey sentences:1. —Is Tara more outgoing than Tina？ —No, she isnt. Tina is more outgoing than Tara.2. —Who is smarter, your mother or your father？ —I think my mother is smarter than my father. The comparative forms of adjectives and adverbs.Lead in20 kgheavier15 kgheavymanymore形容词和副词的比较级一、比较级的构成比较级的构成有规则变化和不规则变化两种情况。1. 规则变化构成方法原级比较级 一般情况下，单音节词和个别 双音节词直接在词尾加-ertalltaller 以不发音的字母e结尾的单音节 词和少数双音节词只在词尾加-rnicenicer构成方法原级比较级 以重读闭音节结尾且词尾只 有一个辅音字母时，双写结 尾的辅音字母，再加-erbigbigger 以“辅音字母＋y”结尾的双 音节词，变y为i，再加-erbusybusier 其他双音节词和多音节词， 在前面加more来构成比 较级important/easilymore important/more easily 比较级规则变化助记口诀比较级要变化，一般词尾加-er。词尾若有哑音e，直接加r就可以。重读闭音节，单个辅音字母要双写。辅音字母加上y，要把y来改为i。2.不规则变化原级比较级good/wellbetterbad/badly/illworseoldolder/eldermuch/manymorelittlelessfarfarther/further二、比较级的用法。1. A+be+形容词比较级+than+B.This tree is _____ than that tree.tallerShe is ______ than before.thinner2. A+be+less＋原级＋than+B. 例：The book is less interesting than that one.这本书不如那本有趣。3. A+实义动词+副词比较级+than+B.例：Tom jumps higher than Bob. 汤姆比鲍勃跳得更高。4. A+be+as+形容词原形+as+B.例：Jack is as funny as Mike. 杰克与迈克一样滑稽。5. A+实义动词+as +副词原形+as+B.例：Claire gets up as early as Sue.克莱尔和苏起床起得一样早。6. A+be/实义动词+倍数＋比较级＋than+B.例：The box is three times bigger than that one.这个箱子比那个大三倍。7. A+be/实义动词+比较级＋and＋比较级.例：Its getting hotter and hotter.天气越来越热。8. The＋比较级，the＋比较级.例：The more，the better.多多益善。9. A+be+the＋比较级＋of the two＋复数名词.例：My brother is the taller of the two boys.我哥哥是这两个男孩中较高的那一个。注意：比较级前可加一些修饰词，常见的有much、a little、a bit、a lot、even、far等。例：This box is a bit heavier than that one.这个箱子比那个重一点。【拓展】一些带有 as...as...结构的常见短语： as busy as a bee像蜜蜂一样忙碌as easy as ABC像ABC一样容易as deep as a well像井一样深as light as a feather像羽毛一样轻as soft as butter像黄油一样软as rich as a Jew像犹太人一样富裕学以致用一、根据汉语意思完成句子，一空一词。1. 他工作比我努力。 He works ________ _______ me.2. 我不如杰克稳重。 I am ______ ________ ______ Jack.3. 这个箱子比那个箱子重得多。 The box is _______ _______ than that one. harder thanless serious thanmuch