高考英语数词的用法语法复习

1、(圆满版)高考英语数词的用法语法复习(圆满版)高考英语数词的用法语法复习4/4(圆满版)高考英语数词的用法语法复习数词的用法数词包含基数词和序数词。基数词1.一般表达-teen,十几-ty,几十hundred,百thousand,千million,百万billion,十亿13thirteen40forty91ninety-one100one/ahundred1,000one/athousand10,000tenthousand100,000onehundredthousand1,000,000one/amillion1,000,000,000one/abillionone/athousandm

2、illion5,487fivethousand,fourhundredandeighty-seven258,147twohundred,fifty-eightthousand,onehundredandforty-seven76,543,213seventy-sixmillion,fivehundredandforty-threethousand,twohundredandthirteen2.注意：1)zero=nought,表示号时能够读作zero,oe,gMyroomnumberis302.threeotwo2).基数词和another,more连用时，表示再、又、还，基数词放于more之

3、前，放于another今后，如：e,gPleasegivemeonemoreapple.Ineedanothertwomoreminutestofinishmywork.3)Exercises:34_72_305_458_6,587_234,158_12,345,678_序数词表示事物次序的词，常常与定冠词the连用。1.一般表达1stthefirst2ndthesecond3rdthethird4ththefourth5ththefifth6th-thesixth17ththeseventeenth20ththetwentieth30ththethirtieth80ththeeightiet

4、h91sttheninety-first100ththeonehundredth101sttheonehundredandfirst2.注意1).序数词前有the时表示摆列次序“第几”，序数词前有a/an表示“再一”，“又一”的意思:ThisisthefirsttimeIhavebeentoShanghai.专心爱心专心1IwillgotoShanghaiasecondtimenextmonth.DoyouthinkthefilmLettheBulletsFlyworthseeing_secondtime?Yes,without_question.Athe,theBa,theCthe,不填Da

5、,不填2).不加the，相当于形容词或副词First,Iwillintroducemyself.Hegottwofirstprizeslastterm.3).倒数的表达倒数第二行thesecondlinefromthebottom/end倒数第二名thelastbutone倒数第三名thelastbuttwo数词的应用年代日、时辰及年代的表达1)年代日的表达：次序为月、日、年，年代前用in,月日前用on,年代日前用on，月与年用逗号分开。in1998innineteenninety-eightin1990innineteenhundredin2000intwentyhundredin2009i

6、ntwothousandandseveninFebruaryinMayon1stonthefirston15thonthefifteenth在2008年6月inJune,2008在九月一日onSeptember(the)first/onthefirstofSep.在2010年10月1日onOctober(the)first,twentyten年代世纪在19世纪70年代inthe1870s/1870sintheeighteenseventies在20世纪80年代inthe1990s/1990sinthenineteennineties3）时间的表达整点:atnine(oclock)a.m.atf

7、ivep.m.过几分:atfourthirty=athalfpastfouratfivepastsix=atsixofiveataquarterpasteight=ateightfifteen差几分:attwentytofour=atthreefortyaquartertoeight=atsevenfortyfive2.年纪的表达方法1）整岁：Heis12.=Heistwelve.Heisatwelve-year-oldboy.2)十几岁：Heisinhisteens.少年(13-19)Heisinhisearlyteens.十三十四Heisinhislateteens.十八十九Theyare

8、teenagerchildren.=Theyareteenagers.3)不到、岁：Heisclosetoforty.他快四十了。专心爱心专心2Heisalmostforty.他差不多四十了。Heisjustunderforty.他还不到四十岁。Heisnotyetforty.Heistwoyearsoffforty.过两年就是四十了。Heisgettingonforty.他年近四十岁。Hewillbefortyyearsoldnextweek.他下周就四十了。4）超出、岁他五十多岁。Heisoverfifty.Heisaboveforty.Heismorethanfifty.Heisinhi

9、sfifties.Heisinhisearlyfifties.他五十出头。分数、小数、百分数及度数的表达1）分数分子用基数词，分母用序数词。分子超出1时，分母要加s.三分之一:one-third五分之三：three-fifths四分之一：one/aquarter或one-fourth二分之一：one/ahalf或one-second半小时:halfanhour一年半：ayearandahalf/oneandahalfyears2)小数用基数词加小数点表示，小数点读作point0.4zeropointfour12.06twelvepointzerosix45.567forty-fivepoint

10、fivesixseven能够读作：zero,o,nought2)百分数1%：onepercent3%:threepercent15%:fifteenpercent主语中有百分数时，谓语动词的单复数由百分数后边名词的单复数决定。e.gFiftypercentofthestudentshavecomealready.Morethanfiftypercentofthesurfaceoftheearthiscoveredwithwater.倍数的表达1）倍数+as+形容词原形（副词）+asThisroomistwiceasbigasthatone.Tomsrunsthreeminutesasfasta

11、sI.倍数+形容词比较级（副词）+thanTheroomistwicelargerthanthatone.TomrunsthreetimesfasterthanI.倍数+the+size（length,height,weight,time）+ofThecityofShanghaiisthreetimesthesizeofthatcity.Theropeisthreetimesthelengthofthatone.倍数+thatof专心爱心专心3Inthisareathegrainoutputisfivetimesthatofbeforeliberation.注意：一倍once,两倍twice,

12、三倍级以上由“基数词+timeshare”如:threetimes,fourtimesdouble表示增添一倍e.gTomworkedveryhard,sothecompanydoubledhissalary.数次的其余用法1）每隔every+基数词+复数名词every+序数词+单数名词每隔一天：everytwodays/everyseconddays/everyotherday每隔几日：everyfewdays隔一行:everyotherline2）数目增添用动词increase,goup,grow,rise,表示幅度用介词by增添四倍：increasefivetimes增添15%：riseby15%数目减少用动词reduce,fall,drop,表示幅度用介词by,to降到10%：reduceto10%(减少90%)减少20%：reduceby20%（只有本来的80%）降落35%：fall/dropby35%4）习惯表达一两个：oneortwo乌七八糟：sixsandsevens我们中的两个：twoofus屈指可数：twosandthrees十有八九：tentoone我们两个人：thetwoofus5)其余种类例子多于over,above,morethan