小学英语比较级与最高级的掌握

比较级与最高级•原级：•1.两者相比（甲=乙)，用as+adj/adv原级+as表示•汤姆和杰克一样高。TomisastallasJack.•他和我跑的一样快。HerunsasfastasI.•2.两者相比（甲小于乙），用notas/so+原级+as•你的学校没有我们的大。•Yourschoolisnotas/sobigasours.•这辆小汽车没有那辆跑的快。•Thiscardoesn’trunas/sofastasthatone.•练习：•1.我和你一样漂亮。•I’masbeautifulasyou.•2.她没有我高。•Sheisnotastallasme.•3.我的眼睛和你的眼睛一样大。•Myeyesareasbigasyours.•4.他的鼻子没有我的鼻子大。•Hisnoseisnotasbigasmine.形容词和副词的比较级和最高级•三种形式：原级，比较级和最高级•比较级最高级构成：•1规则变化（1）在单音节形容词或副词后以及少数双音节形容词或副词后，加er/est.（2）在以e结尾的形容词或副词后加-r,-st.（3）以辅音字母＋y结尾的形容词或副词，变y为i＋er或est（4）重读闭音节结尾的形容词或副词双写最后一个辅音字母＋er或estlonglongestlongernicestnicernicehappiesthappierhappybiggestbiggerbig•(5)在多音节的形容词或副词前加•more/most,表示比较级和最高级•如：careful-morecareful-mostcareful•(6)在某些单音节形容词，如tired,pleased,right,real,glad等，•加more/most•如：tired-moretired-mosttired•（7）以ly结尾的副词，除early外，比较级，最高级用more,most•(8)以ow,ble结尾的双音节词，•在词尾加er/est：•narrow—narrower/narrowest;•able---abler/ablest原级比较级最高级tallshortoldlongprettyuglyfastthickthintallertallestshortershortestolderoldestlongerlongestprettierprettiestuglierugliestfasterfastestthickerthickestthinnerthinnest•写出下列形容词或副词的比较级和最高级•few__________big_______________•fat____________tall________________•beautiful___________fast______________•fast______________early______________•hard_____________large______________•busy______________careful_____________•interesting__________warm____________不规则变化good/well-better-thebestbad/ill/badly-worse-theworstmany/much-more-themostlittle-less-theleastfew-fewer-thefewestfarther-thefarthestolder-theoldestfurther-thefurthestelder–theeldestoldfarsimplesimpler-simplestmoresimple-mostsimple•2.不规则变化•原级比较级最高级•well/good•bad/badly/ill•many/much•little•far•old•simple••clever••happy_______________diffident_________•good____________many_____________•little_______________ill________________•late_____________simple_____________•well____________much_______________•far_____________bad_______________•clever________________badly___________•(二)形容词和副词比较级的用法•1.表示A超过B时，用基本句式：•（1）A+谓语（系动词）+形容词比较级+than+B•Thispenisbetterthanthatone.•Thebookismoreinterestingthanthatone.•(2)A+谓语（行为动词）+副词比较级+than+B•HerunsfasterthanJim.•HespeaksEnglishbetterthanI.John’swatchismoreexpensivethanyours.V.1约翰的手表比你的贵。YaoMingistallerthanJordan.Jordanistall.Jordan2.26m1.98mLinXinruisthin.LiuYifeiisthinnerthanLinXinru.45kg48kgLiuYifeiLinXinru•2.表示A不及B，用基本方式•（1）A+谓语的否定式+形容词或副词的比较级+than+B•Thisroomisn’tbiggerthanmine.•Hedoesn’trunfasterthanhisbrother.•(2)A+谓语+less+形容词或副词的原形+than+B•Iamlesstallthanhe.•Hedoeshishomeworklesscarefullythanhisbrother.•(3)A+谓语的否定式+so(as)+形容词或副词的原级+as+B•如：MrsBrownisnotsooldasshelooks.•布朗夫人不像她的外表那么老。•Itdoesn’trainsoofteninXi’anasinWuhan.•4.the+比较级…,the+比较级…表示B随着A的增长程度而平行增长，常译为“越……越……”•如：Themore,thebetter.越多越好。•Themoreheeats,thefatterhewillbe.他吃的越多，就会越胖。•5.比较级+and+比较级，表示“越来越……”•如：It’sgettingdarkeranddarker.天正变的越来越黑了。•Heismoreandmoreinterestedinmaths.他对数学越来越感兴趣了。•比较级应注意以下几点：•1.比较级前可以用一些表示程度的状语，如much,far,alot,alittle,abit,even,still等。•如：HeisabittallerthanI.他比我高一点。•2.两者间的比较，如果有of短语或修饰名词，比较级前需加the，表示“较……的一个”•如：Whichisthelargercountry,CanadaorAmerica?加拿大和美国，哪一个更大？最高级:用于三者或三者以上Sb./Sth.+v.+the+adj./adv.最高级+范围比较级和最高级的结构•Sheisthemostactive(student)inherclass.•她是班上最活跃的（学生）。Sheisthecleverestgirlof(oramong)thethree.•三个女孩当中她最聪明。prettyprettierprettiestLilyLindaMaryLilyispretty.LindaisprettierthanLily.Maryistheprettiestofthethree.longestlongerlong◇Lookatthepicturesandunderstand看图并理解bigbiggerbiggest1.春天是一年中最好的季节。Springisthebestseasoninayear.2.他是我们班里男孩当中跑地最快的。Herunsthefastestoftheboysinourclass.II.4.5.63.Asiaisthelargestcontinent______theworld..4.Sheistheyoungest____thethreegirls.inof5.Beijingisone_____themostbeautifulcities_____China.ofin•最高级应注意以下几点：•1.表示“最…..之一”的句式。•如：Chinaisoneoftheoldestcountriesintheworld.•中国是世界上最古老的国家之一。•2.最高级前可以有状语或定语。•TheYellowRiveristhesecondlongestriverinChina.•黄河是中国第二长河流。•3.当最高级前有物主代词或名词所有格时，则不加定冠词the.•如:Fridayismybusiestday.•星期五是我最忙的一天。•5.最高级概念，也可以用原级或比较级结构表达。•如：Ican’tthinkofabetteridea.•我再也想不出比这更好的主意。•Nothingissopreciousastime.•没有什么比时间更宝贵的。•6.most表示“大部分，大多数”时，不用the.•如：Moststudentsthinkso.大部分学生都这么想。•7.most表示“非常，极，很”（=very）时，不用the.•如：Theyaremosthandsomeboys.他们都是英俊的男孩。•It’samostinterestingbook.那是一本非常有趣的书。这是我读过的最有趣的书。Youaretheluckiestgirl你是我见过的最幸运的女孩。ThisisthemostinterestingbookIhaveeverread.Ihaveeverseen.V.2ThesearethemostbeautifulflowersIhaveeverseen.这些是我见过的最漂亮的花。一．翻译1.Mikeisas_______asBill.迈克和比尔一样高2.Hedoesn'tdriveso________ashisfather.他开车没有他父亲小心3.Thepeoplearegetting_______and_______.人民变得越来越富裕4.Ourcountryisbecoming_______and_______beautiful.我们的国家变得越来越美丽5.The_______,the_______.越多越好。•6.The_______heis,the_______hefeels.•他越忙就越感到高兴•7.Sheis____________ofthegirls.•她是女孩中最年轻的•8.Heis___________inourclass.•他是我们班学习最努力的•9.Jimismy_______friend.•吉姆是我最好的朋友•二．选择•1.Janeis_______ofthethree.•A.youngB.youngerC.youngestD.theyoungest•2.Thispictureis_______thanthatone.•A.beautifulB.morebeautifulC.mostbeautifulD.themostbeautiful•3.Thisboxis_______thanthatone.•A.heavyB.moreheavy