英语系列七年级英语语法强化训练专题三冠词

学习好资料欢迎下载学习好资料欢迎下载学习好资料欢迎下载专题三冠词目标定位理解不定冠词的基本用法。注意以元音字母发音开始的词前使用不定冠词时，应该用an，如：anhour。注意是元音字母发音，而不是以元音字母开始的词。专有名词也可与不定冠词连用，表示“一个......的人/物”。如：AMr.Jonescametoseeyouthismorning.今天早上有位叫琼斯的先生要见你。熟记定冠词的基本用法，尤其the+姓氏复数，表示全家人，这是中考的重点。零冠词的使用是难点，尤其是初学者往往记不住，本书给出了记忆口缺，希望对学习者有帮助。记忆掌握一些固定用法和词组搭配，这对以后的学习很重要。第一课时语法梳理冠词的种类冠词是一种虚词，它本身不能单独充当句子成分，也没有词义，它只能用在名词的前面，帮助说明其含义。可以分为三种：定冠词the；不定冠词a/an;零冠词，即不用冠词。二、不定冠词(a/an)的基本用法1．在叙述时用于第一次提到的某人或某物前。2.泛指人或事物的某一种，以区别于其他种类。3.泛指某人或某物。4.用于表示时间、速度、价格等意义的名词前，有“每一”的意思，相当于every。5.用在某些物质名词或抽象名词（如coffee,food,tea,try,pleasure）前，表示“一阵，一份，一类，一场，一杯”。6.用于可视为一体的两个名词前。7.表示“一个”，意为one,但数的概念没有one强。8.表示“同一”的意思。9.表示“某一个”，一般与表示星期的名词连用。10.用在专有名词前，表示“类别”。11.用于某些固定词组中。如：havealook/walk/break/try/rest/bath,inahurry,forawhile等。如：1．Ihaveapen.2.Adogisanhonestanimal.3.Anoldmanislookingforyou,Mr.Green.4.Wehaveamusicclassonceaweek.5.Iamnotsure.I’llhaveatry.6．aknifeandfork一副刀叉7.Ihaveagoodfriend.我有一个好朋友。8.Theywerenearlyofanage.他们几乎同岁。9．TheycameonaSunday.他们是某个周日来的。10.，ThisisaVanGogh.这是一幅凡·高的厕。三、定冠词(the)的用法1．用于双方都知道的人或事物前。如：Isthebookyours?2．特指的或上文提到过的人或事物！如：Thegirlinthecarismysister.3．表示世界上独一无二的事物。如：Manisnowstudyingandusingthesun.4．用在序数词、形容词最高级前．或用于对两个人或事物进行比较时起特指作用的比较级阿。如：Heisthefirsttocomehere.Ofthetwins,1likethetallerone.5．用在姓氏复数前表示一家人或夫妻俩。如：TheBrownsarealllivinginChina.6.用在单数可数名词前，表示-类八或事物，以区别于其他种类。如：Doyouknowwhoinventedthecomputer'?7．用于江河、海洋、山脉、群岛、沙漠等专有名词，或由普通名词构成的专有名词前。如：TheYellowRiveristhesecondlongestoneinChina.8．与某些形容词连用，表示一类人。如：Therichshouldhelpthepoor.9．用在表示方位或乐器名称的名词前。如：Canyouplaytheguitar?Thereisaparkintheeastofthetown.10.用于形容词only，very，same等前面。如：ThatistheverythingI'vebeenlookingfor.11.与复数名词连用-指整个群体。如：Theyaretheteachersofthisschool.12.用在某些固定词组中。如：inthedaytime,intheend,atthemoment,atthefootof,-thenumberof等。四、零冠词（不用冠词）1．不可教名词和复数名词泛指人或事物的某一种，以区别于其他种类时，前面用零冠词。如：Catshavesharpeyesatnight.Moneyisnoteverything.2．某些专有名词（如人名、地名、国名）物质名词与抽象名词前用零冠词。如：PhiliphaslivedinChinaforyears.3．名词前已有指示代词、物主代词、不定代词或名词所有格等修饰时，前面用零冠词。如：This;smyaddress.Let'skeepintouch.4．在节日、日期、星期、月份、季节等前面用零冠词。但若特指某年的某月份或某年的某季节，需要在月份、季节前加the。如：Springisthebestseasonoftheyear.Thewinteroftheyear2009wasverycold.5.称呼或表示职位、头衔的名词前用零冠词。如：LiLeiwasmademonitorforthismonth.6．三餐、球类运动、娱乐及学科的名词前用零冠词。如：Whatdoyouusuallyhaveforlunch?Doyoulikeplayingfootballorbaseball?7．“专有名词+普通名词”构成的表示街名、路名、山名等词前用零冠词。如：HiscompanyislocatedinBeijingRoad.8．与by连用的交通工具名称前用零冠词。如：I.usuallygotoschoolbybike.9．公共假日、节日名称前用零冠词，但与festival一起构成的传统节日前要加the。如：WehadaneveningpartyonNewYear'sDay.TheSpringFestivalisatraditionalfestivalinChina.10.表示特定的公园、街道、车站、桥梁、学校等的名词前用零冠词。如：ManyoldpeopletakeexerciseinBeihaiParkeverymorning.11.在某些固定词组或习惯用语中用零冠词。如atnight,dayandnight，watchTV，onfoot，intime等。五、记忆口诀冠词的基本用法冠词是秃子，冠词是秃子，常要戴帽子；可数名词单，需用a或an；辅音前用a，元音前用an；若为特指时，须用定冠词；复数不可数，泛指不用the；碰到代词时，冠词均不见。零冠词的记忆口诀一是熟知名词和复数；一是熟知名词和复数；二是学科和语言；三餐、球、棋、牌；四种时间：季节、月份、星期和节日；五是职位、头衔、称呼、民族乐器和有指示代词或物主代词修饰的名词；六是习惯用法要熟记。基础训练I．给下列名词前加上适当的不定冠词。1.__________book2.__________computer3._________orange4._________volleyball5.________hour6._________language7.________island8._________singer9．__________apple10.___________eraserII.用适当的冠词填空，使句子完整。1.Romewasnotbuiltin________day.2.Jimis________honestboy.Wealllikehim.3.----Can_________childfinishthejob?-----No,atleasttwochildrencan.4.Wehaveamusicclassonce________week.5.It's______pleasuretotalkwithyou.6._______hundredandtwentypeopleattendedthemeeting.7.I'dlike_________coffeeandtwobeers.8.Comein,oryou'llcatch_________badcold.9.LiLei,take__________medicinethree_________times_________day.10.Hebought_______newhouse.Ihavebeento________house.11.Thisis___________umbrellathatIlostyesterday.12.________richarenotalwayshappierthan__________poor.13.________man/Manis__________onlyanimalwhocantalk.14.Autumnis___________bestseasoninBeijing.Manypeoplefromallovertheworldcomehereinautumn.15.Doyouknow___________girlinred?16.________fifthlessonisveryeasy.17.Lucyis__________tallerofthetwogirls.18.Ilikeplaying__________violin,whilehelikesplaying___________football.19.Look,all___________booksareherenow.20.June1stis____________Children’sDay.21.Tomworksas__________workerintherestaurantandheispaidby____________hour.22.__________Greenslivenextthedoor.23.__________music/Musiccanbringpeople___________pleasure.24.Ihavevisitedmanycitiessince__________September,2007.25.Sheisnotsosmart___________girlasIthought.26.Couldyoutellme__________answertothequestion?Ican’tworkitoutmyself.27.IntheUnitedStates,__________Father’sDayfallson_________thirdSundayin_________June.28.Ilike________chemistrythoughit'sabitdifficult.29.Wendywasmade__________monitorforthismonth.30.___________doctor/Doctor,I’mnotfeelingmyselftoday.Ⅲ．根据句意将下列句子补充完整。1．作为作家，汤姆是很成功的。但作为一个儿子，他是失败的。Tomis______________________as__________,butheis___________________asason.2．你认识一个叫琼斯的人吗？Doyouknow______________________?3.我们家一周聚一次。Ourfamilygettogether____________________________________.桌上的这本书是一本很有用的书。___________________on_____________________is_______________usefulone.格林一家外出度假了。_________________________areoutonholiday.我父亲生病住院了。我现在要去医院看他。Myfatheris_____________________.Iamgoingto___________________toseehim.他总是第一个来，最后一个离开。Heisalways______________________________________and_____________________________________________.太阳和月亮，哪个更大？Whichis__________,____________________________________________________.9．房子前面有棵大树。Thereis_________________tree_______________________________thehouse.=4\*ROMANIV.从B组中选择合适的单词，使A组的句意完整，适当时加上a/an.A组1.Iwanttoaskyou__________________.2.Tomneverwears___________．3.Ican’tride__________.4．Mybrotheris____________.5.Barbaraworksin_____________．6.Annwantstolearn_______________.7．Jimlivesin_______________.8．ThiseveningI'mgoingto_________.B组oldhouse;artist;party;question;bookshop;foreignlanguage;hat;bicycle第二课时疑难拓展疑难点一a用在辅音音素前，而不是辅音字母前。an用在元音音素前，而不是元音字母前。如：auniversity,anhour。Thereisan“h”intheword“think”.疑难点二表示种类有三种形式：1．单数名词前加定冠词。2．单数名词前加不定冠词。3．复数名词前不加冠词。如：Adogisanhonestanimal.=Thedogisanhonestanimal．＝Dogsarehonestanimals．疑难点三“the+序数词”表示“第几……”；“a十序数词：’表示“又一，再一”。如：Ihavefailedtwice．I’lltryathirdtime.我失败两次了，我要再试一次。疑难点四anumberof意为“许多”，相当于many，作主语时谓语动词用复数。thenumberof意为“……的数目”，作主语时谓语动词用单数。如：Anumberofpeopleare'playingontheground．Thenumberofthepeopleonthegroundisaboutl,000.疑难点五在动词+人+介词+the+身体部位”这类短语中要用the，而不用物主代词。如：Themanhitme-onthehead.那人打了我的头。疑难点六在一些固定词组中，有无定冠词含义完全不同，一定要牢记。如：gotoschool上学（是学生）：gototheschool去学校（不一定是学生）。inhospital因病住院；inthehospital在医院里（不一定是病人）。attable吃饭；inthetable在桌边（不一定在吃饭）。byday白天；bytheday按日计算。infuture今后；inthefuture将来/an，放在这些词之后。如：疑难点七当名词被such，half,what,many修饰时，不定冠词（a/an）放在这些词之后。如：suchabeautifulhouse；halfanhour.Manyapersonisplayingbasketball．许多人在打篮球。疑难点八当名词前面的形容词前有so，how，too等词时，不定冠词(a／an)应放在形容词之后。如：sobeautifulahouse;howusefulabook;to.youngagirl等。疑难点九当名词前面有形容词和quite，rather或very时，不定冠词(a／an)置于quite之后，置于very之前，置于rather的前或后都可以。如：quiteafasttrain；averyfasttrain；ratherafasttrain;aratherfasttrain等。疑难点十当定冠词与all，half，both，double，threetimes，one-third等词连用修饰名词时，定冠词应放在这些词之后。如：allthebooks；boththegames；twicethesizeofhishouse等。Theholeisone-thirdthedepthofthatone.疑难点十一当表示一个人兼有多种身份时，只在第一个名词前加冠词a，an或the。如：adoctorandwriter一个医生兼作家的人；therepone，andeditor那个记者兼编辑的人。疑难点十二当系动词turn后接名词时，通常使用零冠词。如：Ihadhopedtobecomeapianist，butIturnedartist．我原本想当钢琴家的，却成了美术家。疑难点十三用于固定结构中“whata／an十单数可数名词”及“sucha／an十单数可数名词”结构，表示惊叹！如：Whata1ovelyday!多好的一天啊！Howdidyoumakesuchamistake?你怎么会犯这种错误？疑难点十四不定冠词还可以与表示疾病的名词连用。如：aco1d感冒；aheadache头痛。疑难点十五在表示方位的名词前或表示时间的词用定冠词。如：ontheright在右边；inthemorning在早上。能力提升I.单项选择。()1.Franceis___________Europeancountry.Indiais__________Asiancountry.A.an;theB.the;anC．a;anD.an;an()2.There's__________"h"intheword"hour".A.aB.theC.anD./()3.Theboywillcertainlybecome____________oftheircountry.A.headmasterB.KingC.thekingD.aking()4.----Putwastebaginthedustbin.----It'snot________wastebag.It'smyshoppingbag.A.a;theB.the;aC./;aD./;/()5.Thefourth_________of________isThanksgivingDayeveryyear.A.Thursday;NovemberB.Thursday;theNovemberC.theThursday;theNovemberD.theThursday;November()6.Thecarisrunningabout-sixtymiles__________hour.A.oneB.theC.anD.a()7.---Doyouknow_______ladyinblue.-----Yes.Sheisateacherofauniversity.A.theB.aC.anD./()8.__________booksareuseful.A.AlltheB.TheallC.AD.An()9.----Ihearthere'llbe_________talkonteenageproblemsnextMonday.-----Doyoumean________talkourteacheraskedustolistento?A.a;theB.a;aC.the;theD:the;a()10.Ilookedunder________bedandfound_________penIlostyesterday.A.the;aB.the;theC./;theD.the;/()11.-----Tina,doyouknow.__________newclubinyourschool?-----Ofcourse.I'moneofitsmembers.A.aB.anC.theD./()12.Itissaidthat________umbrellawasinventedoverfourthousandyearsagobyChinesepeople.A.aB.anC.theD./()13._________numberofstudentshavegonetoShanghai.A./B.TheC.AD.An()14._______longthebridges!Letmedriveyouoverit.A.WhatB.WhataC.HowD.Howa()15.1don'tthink_______isabettercarthanourmakes.A.aFordB.FordC.Ford'sD.theFord()16.Nopains,no__________.(不劳无获)A.gainsB.againC.gainD.thegain()17.Iusedtogoto_________No.1MiddleSchooleverySundayby_________bustoplay______basketballwithmyfriends.A.the;the;theB./;/;/C./;/;theD.a;a;a()18.Tian'anmenSquareandGreatWallareveryfamousin_________People'sRepublicofChina.A.the;theB.the;/C./;/D./,the()19.Janeis______girl.Shealwaysanswerstheteachers'questionsin_________class.Aquiteasmart;theB.aquitesmart;theC.quiteasmartD.aquitesmart;/()20.MrLi,__________,willgiveatalktothestudentsabouthowtolearnEnglishtomorrow.A.ateacherandawriterB.ateacherandwriterC.theteacherandthewriterD.theteacherandwriterⅡ．下列每个句子中均有一处错误，请指出并改正。1.Ourcitygovernmenthaspaid~greatattentiontotheenvironmentalproblem.误：___________正：_____________2.WillJimleaveforXi'anthenextweek?.误：___________正：_____________3.OneofthethreeforeignvisitorsisaJapanese,othertwoareAustralians.误：____________正：______________4.ThereispubliclibraryineverycountyinChina.误：_____________正：____________5.Whatgoodnewsyou'vebroughtus!误：___________正：___________6.Lighttravelsfasterthanthesound,doesn’tit?误：__________正：____________Mostofstudentsinmyclasscomefromthecountryside.误：__________正：____________8.IwanttobesoldierwhenIleaveschool.误：____________正：__________IwasanuniversitystudentofEnglishtwoyearsago.误：___________正：____________10.Iusedtoworkinasameshopasthedid.误：___________正：_____________III.阅读短文，用适当的冠词填空，不用冠词处画“/”。Wehad_____1_____speciallesson______2______lastFriday.Ourgeographyteacher,Mr.Hung,tookusto_____3_____OceanPark.Wevisited____4____parkin_____5_____afternoon.Mr.Hungaskedustotake_____6____goodlookat_____7______animalsthereespecially(尤其是)_____8______bigpandas.Luckily,wesaw_____9____bigpandaplaying_____10_____ballon____11____groundwhenwegotthere.Westayedthereforhalf_____12_____hourandtook____13____lotofpicturesbecauseitwas___14_____.excitingexperiencetoseeitin____15_____reallife.疑难突破单项选择。()1．(2010河北)Cindyis_________amazingsinger.Shehaslotsoffans.A.aB．anC．theD.／()2．(2010湖南娄底)-----WhydoyoulikeMary?-----Becausesheis__________honestgirl.A.aB．anC．the()3．(2010四州内江)Jennyis__________American.Sheworksin___________companyinChinanow.A.an;aB.an;theC.a;an()4．（2010四川自贡）-----Whatwouldyoulikefor___________breakfast,Mr.Green?-----Twopiecesofbreadand____________cupoftea,please.A.a；theB./;aC./;the()5.(2010山东潍坊)Avatar（《阿凡达》）issuch________wonderfulsciencefictionmoviethatIwanttoseeitsecondtime.A.a;aB.a;theC./;theD.／；a()6.(江苏南京)Thereis___________localshopforpeopletobuydailythingsinthesmallvillage.A.aB.anC.theD./()7.(2010浙江衢州)Manypeoplethinkthat2012isoneof_________mostsuccessfulfilms.A.aB.anC.theD./()8.(2010江苏无锡)Ifyougobytrain,youcanhavequite____________comfort-ablejourney,butmakesureyoutake__________fastone.A.a;aB.the;aC.the;theD./;a()9(2010江苏宿迁)It'sreportedthatablerainstormhit________southofourcountry.A.aB.theC./D.an.()10.(2010湖南长沙)Mysistercanplay___________violinverywell.A.theB.aC./()11.(2010江苏扬州)-----Look!What'sthatmovinghighupin_________sky?-----Itmustbe_______plane.A.a;theB.the;/C.the;aD./;a()12.(2010吉林通化)-----Howwas_________dinneratMike'shouse?-----It~asgreat.Mike'smumiswonderfulcook.A.a;theB.the;aC.the;theD.a-an()13.(2010四川成都)-----Whatshallwehaveforsupper?------Ibought________bigfishat._________onlymarketnearmyoffice.A.a;aB.a;theC.the;/()14.(2010浙江湖）-----MayIhavealookattheMP4,sir?-----Whichone?_________blackone?A.AB.AnC.TheD./()15.(20l0河南）----Shallwepay________visittoExpo2010,Shanghai?-----No,I'dratherstayathomeandplay__________football.A.a;theB.the;a.C./;theD.a;/()16.(2010山东聊城)----Lingling!Doyouknow____________womaninwhite?-----Yes.Sheis________nurseinLiaochengPeople'sHospital.A.a;a:B.the;theC.a;theD.the;a'()17.(2010四川眉)----Lilyiscomingby_________planetomorrow.-----Let'sgoto____________airporttomeether.A.a;aB./;aC.the;theD./;the()18.(2010广西梧州)-----Whatdoyouwanttobewhenyougrowup?-----__________actorlikeJetLi.A.AnB:AC.TheD./()19.(2010山东莱芜)-----Bob,youlooksohappytoday!-----Well,Igot________"A"OnmyEnglishtest.A.theB.aC.anD./()20.(2010山东菏泽)----MayIhavealookat_________booktonight?-----Ofcourse,youcan.Ihave______oldoneathome.A.the;aB.a;theC.the;anD.the;the()21.贵洲铜仁)-----Haveyoufound_________addressthatyouwanted?-----Yes.It'sMrWang268@163.com.A.aB.an.C.theD./()22(2010黑龙江鸡西).Ifyouworkhard,you'llget________"A"intheexam.A:aB.anC.the()23.(2010广西定西)Theyoftentake_______walkafterdinner.A.aB./C.theD.an()24.(2010广西南宁)Lily'smotheris__________teacherinaschool.A.aB.anC.theD./()25.(2010天津)____________Brownswerehavingdinnerwhenthetelephonerang.A.A'B.AnC.TheD./.专题四数词目标定位1.掌握基数词和序数词的构成，尤其是前十个数，需要强化记忆。注意不规则变化的情况。2.熟练掌握年、月、日的表达方法及千以内数字的表达方法。还有编号、年龄、分数的表达法，尤其是当分子大于l时，分母的序数词应用复数形式。如：two-thirds三分之二。3.掌握日常交际活动中常见的数字表示方法。特别是hundred，thousand，million，billon等表达确切的数目时，不用复数形式；表示不确切的数目时这些基数词要用复数形式，且与of连用。4.理解倍数的表达法，最好熟练掌握，这既是中考的重点，也是难点。5.理解数词的某些特殊用法。第一课时语法梳理一、数词的定义用以表示数目或顺序的词叫数词。数词可以分为基数词和序数词两种。表示数目多少的数词叫基数词；表示顺序的数词叫序数词。二、基数词的构成1.1～12是独立单词，需逐个记忆。2.13～19是在个位数词的词干后加-teen构成。其中thirteen，fifteen，eighteen是不规则变化。3.20～90都是以-ty结尾。如：twenty，thirty，ninety等。4.21-99是在十位数词后面加上个位数词构成，中间加上连字符“-”。如：twenty-one，thirty-two，ninety-nine等。5.3位以上的基数词，在百位和十位之间一般要用连词and。如：l，135读作onethousand，onehundredandthirty-five。英语中没有“万”和“亿”，在表示“万”和“亿”时要按十进位法来蓬≥。如：15,678读作fifteenthousand，sixhundredandseventy-eight。7.1000以上的数字，从后向前数，每三位加“，”，第一个“，”前为thousand，第二个“，”前为million，第三个“，”前为billion，然后每一节按百、十、个的顺序表示。8．dozen表示“十二，一打”，score表示“二十”。9．ten，score，hundred，thousand，million，billion这些词前面如有表示具体数目的词，就不能加s和of，反之则须加s和of。如：onehundredpeople一百人，hundredsofpeople数百人。10．与基数词合成的复合定语，其中的名词用单数。如：athree-month-oldbaby三个月大的婴儿，afive-yearplan个五年计划。11.乘法运算的表示法，单复数均可。如：3*5=15Threemultipliedbyfiveis/arefifteen.三、序数词的构成序数词一般以与之相应的基数词加词尾-th构成，但要注意一些特殊形式。阿拉伯数字基数词序数词序数词缩写1onefirst1st2twosecond2nd3threethird3rd5fivefifth5th8eighteighth8th9nineninth9th12twelvetwelfth12th20twentytwentieth20th21twenty-onetwenty-first21st22twenty-twotwenty-second22nd23twenty-threetwenty-third23rd其他序数词的构成：几十几及以上的序数词，其中十位数或百位数、千位数等用基数词，只有个位数才用序数词。如:128th:onehundredandtwenty-eighth752nd:sevenhundredandfifty-second2．hundred，thousand，million的序数词均在基数词后加th构成，即hundredth，thousandth，millionth。四、数词的应用1.百分比的构成1.百分比的构成基数词+percent+of+名词/代词如：Twentypercentofthemilkisdrunkup.小数点前的整数按基数词的规则表示，小数点读作point，2.小数的构成数点后的数字按其数字直接读出来。2.小数的构成如：13.56读作thirteenpointfivesix。3.分数的构成分子用基数词，分母用序数词；若分子大于一，分母的序数3.分数的构成词要用复数形式。如：1/3读作onethird;2/5读作twofifths数词的应用数词的应用4.倍数的构成一倍once，两倍用twice/double,三倍及三倍以上用4.倍数的构成“基数词+times”。如：threetimes,fourtimes等。5.年、月、日表示法5.年、月、日表示法年份用基数词，日期用序数词，其顺序常用“月、日、年”。如：2009年11月15日；November15(th),2009或15（th）November,2009;读作November(the)fifteenth,twoThousandandnine.6.编号表示方法6.编号表示方法冠词；基数词位于名词后。如：LessonFive/thefifthlesson第五课 五、倍数表示法1.倍数用在形容词原级的第一个as前面。如：Ihavetwiceasmanybooksasyoudo.我的书是你的书的两倍。2.倍数用在表示度量的名词前。如：Theearthis49timesthesizeofthemoon.地球是月球的49倍大大3.词或副词的比较级或by+倍数放在比较级后。Thisbuildingistwicehigherthanthatone.这个建筑物比那个建筑物高两倍。约数表示法1．用ten，dozen，score,hundred，thousand，million等数词的复数加of短语来表示几十、几百、上千、上万、几百万等约数的概念。2.用lessthan,under,below，orless，almost，nearly，upto。等来表示小于或接近某数目。3.用morethan,over,above,beyond，ormore等来表示多于某个数目。4.用or，orso,about，around，some，moreorless等表示在某一数目左右。5.用from...to,between...and表示介于两个数饲之间。如：1．Iboughtdozensofpencilslastyear.去年我买了几十支铅笔。2.Howcanyoufinishyourhomeworkinlessthanhalfanhour?你怎么能在半个小时内就完成你的作业呢？3．Ourschoolhasahistoryofmorethansixtyyears.我们学校有60多年的历史。4．Thedoctorspentfourorfivehoursperformingtheoperation.那医生花了四五个小时做这个手术。5.Iwillbebackintwot。threeweeks.我两到三周后就回来。七、基数词变序数词口诀：基变序，有规律，末尾加上th基变序，有规律，末尾加上th；一、二、三，特殊记(first,second,third）；八加h(eighth)，九去e(ninth)，ve要用f替（fifth;twelfth)；以y结尾变ie，后跟th莫忘记（如：thirtieth,fiftieth)；若想表示几十几，只变个位就可以。如：twenty-first,forty-ninth)。基础练习I.根据给出的数字分别写出其相应的英文形式。1.11___________2.15_____________3.19_______________4.28________________5.40____________6.67________________7.100_____________8.1000___________________9.1000000____________10.9th________________11.10th____________12.12th_________________13.13th______________14.14th______________15.20th_____________16.23rd_______________17.31st__________18.52nd___________________-II．用适当的英语数词完成下列句子。1.Summeristhe___________seasonofayear.2.Wednesdayisthe___________dayofaweek.3．Thirtyis__________ofsixty,4.Children'sDayisonJune____________eachyear.5.Letter"I"is___________letterinthealphabet(字母表)．6.Thereare__________monthsinayear.7．Mysisterisjust20.Todayisher____________birthday.8.Thirtyplusninety-threeis____________.III．将下列词组和句子译成英语。1．十二把伞__________________2．二十个苹果____________________3．十四辆公交车___________________4．四十间房子__________________5．十九件礼物_________________6．二千五百八十七名学生_________________7.60亿8000万人口___________________________8．成百上千的顾客______________________9．第一谋_____________________10.百分之三十的水__________________________11.百零五点三二______________________________12.三分之二的书____________________13.在20世纪80年代___________________14.2009年3月18日____________________________15.这个洞是那个洞的三倍深。_______________________________16.现在，他们在九号房间开会。_______________________________IV.根据括号内的词，在空白处填入恰当的词。1.Ithinkthe___________lessonisthemostinterestingoneinthebook.(twelve)2.Myfatherisnowinhis_________,butheisstilltakingsomecomputercourses.(fifty)3.Thereare___________ofpeoplewhoarelosingjobsandtheyarewonderingwhattodo.(thousand)4.Ihavetried_________(两次),butI'lltry_____________（再一次）．5．Iliveon______（第六大街），butworkfarfromit．6.Harryhasjustfinishedwritingan______________（八百字）composition.7.ItissaidthatthegravityontheMarsisonlyabout______________（三分之一）ofthegravityontheearth.8.Chinaisalmost___________(two)thesizeofMexicoinarea.第二课时难疑拓展疑难点一序数词前加定冠词时表示顺序，意为“第几”。如：Iwasthefirsttocomehere.我是第一个来这儿的人。序数词前加不定冠词时表示“又一，再一”。如：Ihavefailedtwice，butlwanttohaveathirdtry.我失败两次了，我想再试一次。疑难点二“of+the+基数词”表示范围。如：twothirdsoftheten十个中的三分之二。疑难点三表示年代用“in+the+数词的复数形式”。如：inthe1990s或inthe1990's在20世纪90年代。表示某人的年龄阶段用“in+物主代词十数词的复数形式”。如：inhis20s在他二十几岁时；inher30s在她三十几岁时。疑难点四“数词十名词十形容词”作定语时，中间要用连字符，而且中间的名词只用单数形式。如：afive-year-oldgirl，一个五岁的女孩；a15-minute-longwalk一段十五分钟的步行路程。疑难点五“数词+hundred/thousand/million/billion+名词复数”表示具体的数量；如：twothousandstudents;fourhundredgirls等。“tens/dozens/scores/hundreds/thousands/millions/billions+of+名词复数”表示“许多”。如：thousandsoftrees;tensofhundredsofhorses等。疑难点六表示时刻时，如果在30分钟以内，用past，如8：15读作fifteenpasteight或aquarterpasteight;如果超过30分钟，则用to，如8：40读作twentytonine。能力提升I.单项选择。()1.____________ofthewarmwateralreadybeenusedup.A.Two-third;hasB.Two-third;haveC.Two-thirds;hasD.Two-thirds;have()2.__________thestudentsintheprimaryschoolisaboutthreethousand,and_________ofthemaregirls.A.Anumberof;twothirdB.Thenumberof;twothirdsC.Anumberof;twothirdsD.Thenumberof;twothird()3.----Comeandseemein_______________.-----Withpleasure.That'swhatI'mexpecting.A.twoorthreedays.B.twoorthreeday'stimeC.twoorthreedays'timeD.twoorthreeday's()4.Dick,itisthe_________timein________daysthatyou'vemadethesamemistake.A.two;threeB.second;threeC.two;thirdD.second;third()5.-----Howmanyteachersarethereinyourschool?----______________butI'mnotsure.A.HundredsB.HundredC.HundredsofD.Onehundred()6.Ittookme_________tofindoutthekeytothedrawer.A.oneandhalfhoursB.oneandahalfhoursC.oneandahalfhourD.oneandhalfhour()7.Wecansee____________starsintheskyatnight.A.tenofthousandofB.tensofthousandofC.tenofthousandsofD.tensofthousandsof()8.Onedayonthemoonis____________.A.twoearthweeklongB.twoearthweekslongC.twoearthweekslongerD.twoearthweekslength'()9.Shewenttothecountryside_________.A.inthemorningatnineonJunefirst,1968B.onJunefirst,1968inthemorningatnineC.atnineinthemorningonJunefirst,1968D.onJunefirst,1968atnineinthemorning()10.Johnwas__________togettoschoolandIwasA.first;ninthB.afirst;aninthC.thefirst;theninthD.thesecond;thenineth()11.Tenandfiveis_____________.A.fiveB.fiftyC.fifteenD.two()12.TheOlympicGamesareheld___________.A.everyfouryearsB.everyfouryearC.everyfourthyearsD.everyfour-years()13.-----Tomissixandheis__________hissisterJane.HowoldisJane?-----Three.A.twiceasoldasB.twoyearsolderthanC.threeyearsyoungerthanD.asoldas()14.Heis________inourclass.A.thefourthtallestB.f