高中英语Module5 A lesson in a lab-grammar教案(外研

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1、Module5ALessoninaLab-grammar教案Teachingcontentandaims:1.Learntheexpressionsaboutthedegreesofcomparison.2.Learnsomeadverbswhichcanputinfrontofthecomparativeexpressionsofadjectivesandadverbs.3.Writeoutthesesentencepatterns.TeachingDesign:Task:Learnthecompara

2、tiveexpressions.Pre-taskRevisionA.Revisewhatwehavelearnedlastlesson.B.Lead-inTheearthisforty-ninetimeslargerthanthemoon.=Theearthisforty-ninetimesaslargeasthemoon.Today,we’lllearnthedegreesofcomparison.Cycle-taskActivity1:Instruction1．形容词和副词的比较等级的用法：1）原级比

3、较：表示两者程度相同。用句型表示：(倍数+)as+adj./adv.原级+as…,否定句式：not+(倍数+)as/so+adj./adv.原级+as…,如:e.g.Dickisastallashisbrother.Ihaveneverseenapersonas/socleverasheis.2）比较级：A.表示A超过B。此时使用句型：Ais(倍数+)形容词和副词的比较等级+than+B如：Ourclassroonisbrighterthanyours.Dogsrunfasterthanrabbits.I

4、don’tthinkmathsismoreimportantthanphysics.B.表示A不如B。用句型：less+adj./adv.原级表示。如：Rabbitsranlessfastthandogs.Jennyislesscleverthanher用心爱心专心sister.Itrainslessoftenhereinautumnthaninspring.1）Aisthree(four…)timesthesize(height,length,width,depth,…)ofB.e.g.Thenewbu

5、ildingisfourtimesthesizeoftheoldone.注意：一倍用：once二倍用：twice/double三倍及以上使用：three/four…times.2）形容词和副词的比较等级的特殊用法：A.“越来越……”e.g.Youaregrowingtallerandtaller.Englishisbecomingmoreandmoreimportant.B.“越……,越……”e.g.Theharderyoupush,themorequicklythecartwillmove.Themor

6、ecarefulyouare,thebetteryouwilldointheexam.C.“两者之中比较……的一个”：用of引导，比较级前加上the,如：Jackisthetallerofthetwobrothers.D.nomorethane.g.Shehasonmorethanoneyuaninherpocket.E.nomore…than.e.g.Heisfeelingnobetterthanyesterday.他觉得不比昨天好多少。（即今天昨天感觉都不好）Sheisnotmoregeneroust

7、hanheryoungersister.她不如她妹妹那样慷慨大方。=Sheisnotsogenerousasheryoungsister.F.nolessthane.g.Ihavenolessthantendictionaries.我起码有十本字典。Ihavenotlessthantendictionaries.我具有的词典不少于十本。G．noless…thane.g.Sheisnolessdiligentthanyou.H.不用比较级形容词的比较，如：senior,junior,superior,inf

8、erior等。e.g.MrSmithisthreeyearsseniortohiswife.I：Heismorewisethandiligent.与其说他勤奋，不如说他更聪明。注意：Farther和further主要指“距离”和“时间”的比较，表示“更远”；further和furthest指“程度”，表示“更进一步”。elder和eldest是用来表示家族关系的长幼顺序，只作定语形容词；older和oldest用心爱心专心表示