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Lesson 3【学习目标】1.学习形容词比较级的构成方式2.能运用形容词比较级简单描述事物【重难点预测】重点：学习形容词比较级的构成方式难点：运用形容词比较级简单描述事物【学习流程】1.填空，完成下面的短文。 The first computers were_(big) than cars, but now they are becoming _(small) and _(good). Computers can calculate at a _(fast) speed than we can. Computers are not _(clever) than human beings, but they may be able to do a _(good) job than us. In the past, computers were_(much) expensive, but now they are much _(cheap).、自主探究完成教材P39Work out the rule部分的内容，并总结形容词比较级的构成方式比较级形式 例词单音节形容词大多数单音节形容词+-erhighhighersmallsmaller以-e结尾+-rlargelargerwidewider一个元音+一个辅音双写辅音字母，再加-erbigbiggerhothotter双音节形容词以-y或-ly结尾把y改为i再加erhappyhappiersillysillier以非重读元音/l/或/(r)/结尾+-er（-r）clevercleverersimplesimpler以-ful，-less，-ed，-ing结尾more+形容词原级carefulmore carefulboringmore boring多音节形容词含三个或三个以上more+形容词原级difficult more difficultbeautifulmore beautiful、合作交流模仿所给例子，运用比较级进行对话Canada，China（country/big）e.g.S1: Which country is bigger, Canada or China? S2: Canada is bigger than China.、总结反思收获策略与反思
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