三四单元重难点复习及习题VIP专享VIP免费

1、规则变化单音节词和少数双音节词，加词尾-er，-est来构成比较级和最高级。构成法原级比较级最高级一般在原级末尾加-er，-esttallgreattallergreatertallestgreatest以不发音的e结尾的单音节词词只加-r，-stnicelargenicerlargernicestlargest以一个辅音字母结尾的闭音节单音节词，双写结尾的辅音字母，再加-er，-estHotbigfatthin(瘦）/Hotterbiggerfatterthinnerhottestbiggestfattestthinnest“以辅音字母+y”结尾的双音节词，改y为i，再加-er，-esteasyBusyhappy/funny/early/easierBusiereasiestbusiest其他双音节词和多音节词，在前面加more，most来构成比较级和最高级(另外由形容词构成的副词比较级都是在前面加more，由过去分词转化而成的形容词，比较级都是在前面加more)。BeautifulHard-workingOutgoingLoudlytiredMorebeautifulMorehard-workingMoreoutgoingMoreloudlyMoretiredMostbeautifulMosthard-workingMostoutgoingMostloudlyMosttired2、不规则变化原级比较级最高级Good/wellbetterbestBad/badlyworseworstold（老的）older/elderoldest/eldestmany/much（多的）moremostlittle（少的）lessleastfar（远的）farther(距离更远的）Further(程度更近一步）farthestfurthest一、形容词的原级1、用“as+形容词+as”例如：TaraisasquietasSamNellyspeaksasquietlyasLarry2、否定句用“notso+形容词+as”句型.TaraisnotsotallasSamNellyspeaksnotsoquietlyasLarry二、形容词的比较级(一)、比较级的用法总结：1、比较级的标志是than,形容词和副词的比较级前，可用much,even,alittle,alot修饰2、当A和B做比较时时，用“A+谓语动词+比较级+thanB”TaraistallerthanSamTaraismoreoutgoingthanSanNellyrunsfasterthanLarry④NellyhaslongerhairthanLarry3、“越来越……”比较级＋and＋比较级”。worseandworse.多音节比较级用“moreandmore＋形容词原级”形式。如：moreandmorepopular4、The+比较级。。。，the+比较级越。。。，越。。。Theearlier,thebetter5、比较A、B两事物,Whichistaller,AorB6、Betty’shatisbiggerthanmine=myhat三、最形容词的最高级1、三者或三者以上比较，一般有表示范围的词组，比如inourclass,ofthethree等词组出现时用最高级例如：TomisthetallestofthethreeHerunsthefastestinourclass形容词最高级前通常必须用定冠词the，the+最高级，例如：SunCinemaisthebiggestmovietheaterintheworld太阳电影院是世界上最大的电影院。2、使用最高级时候，注意以下几点;表示“最…之一”，用oneofthe+最高级+名词复数Heisoneofthetalleststudentsinourclass他是我班最高的学生之一ShanghaiisoneofthebiggestcitiesinChina.上海是中国最大城市之一。“the+序数词+最高级第二长…”TheYellowRiveristhesecondlongestriverinChina当最高级前有“…的”时，最高级前不加themybestfriend④Whichisthetallest,A,BorC?对比Whichistaller,AorB?1.Mybrotheristwoyears__________(old)thanme.2.Tomisas________(fat)asJim.3.Isyoursister__________(young)thanyou?Yes,sheis.4.Whois___________(thin),youorHelen?Helenis.5.Whosepencil-boxis__________(big),yoursorhers?Hersis.6.Mary’shairisas__________(long)asLucy’s.7.Ben______(jump)________(high)thansomeoftheboysinhisclass.8.______Nancysing__________(well)thanHelen?Yes,she_____.9.Fangfangisnotas_________(tall)astheothergirls.10.Myeyesare__________(big)than________(she)..11.Whichis___________(heavy),theelephantorthepig?12.Whogetsup_________(early),TimorTom?13._____thegirlsgetup_______(early)thantheboys?No,they______.14.Jimruns_____(slow).ButBenruns_____(slow).15.Thechilddoesn’t______(write)as____(fast)asthestudents.1、TheChangjiangRiveristhe_____(long)riverinChina.2、AnniesaysSallyisthe________(kind)personintheworld.3、Torontois_____cityinCanada.(large)4、Playingcomputergamesis______ofalltheactivities.(interesting).5...