中考英語復(fù)習(xí)數(shù)詞課件

數(shù)詞一、數(shù)詞的分類表示數(shù)目多少的詞叫：_________Moststudentsexercisethreeorfourtimesaweek.表示順序的詞叫：_________Taketheescalatortothesecondfloorandturnright.基數(shù)詞序數(shù)詞Twoofthemwentout.Hechosethesecond.Thethirdpersonishisgirlfriend.WhatIwanttogetisthefirst.Istherearoomleftforustwo?主語賓語定語表語同位語二、數(shù)詞的句法功能三、數(shù)詞的構(gòu)成和用法100以內(nèi)的基數(shù)詞1one11eleven20twenty2two12twelve30thirty3three13thirteen40forty4four14fourteen50fifty5five15fifteen60sixty6six16sixteen70seventy7seven17seventeen80eighty8eight18eighteen90ninety9nine19nineteen10ten三、數(shù)詞的構(gòu)成和用法100以內(nèi)的基數(shù)詞onehundred一百1,000onethousand一千1,000,000onemillion一百萬1,000,000,000onebillion十億十幾的結(jié)尾是__________________________;幾十的結(jié)尾是__________________________;兩位數(shù)中間要有________________________;三位數(shù)，百位十位間有_________;十位個位間有________;

teenty連字符-and連字符-大數(shù)字142，490，038，234thousandmillionbillionHowtoread849，003，495，349inEnglish?基數(shù)詞的用法fivethousandtenmillionthirtybilliontwentyhundredthousandsofmillionsofbillionsofhundredsof

在表示一個具體的數(shù)目時，hundred,thousand,million后面都不能加-s。

在表示一個不確定的數(shù)目時，應(yīng)用hundreds,thousands,millions加介詞of來表示：數(shù)以百計/數(shù)以千計/數(shù)以百萬計?；鶖?shù)詞的用法Jimisafive-year-oldboy.Hewilltakepartintheboys’800-meterrace.

基數(shù)詞可以與名詞構(gòu)成復(fù)合詞，相當于形容詞，作定語。在這種復(fù)合詞中，名詞不能用復(fù)數(shù)。序數(shù)詞基變序，有規(guī)律，結(jié)尾加上th123，特殊記，結(jié)尾字母tdd八去t，九去e，ve要用f替整十變化需注意，把y變ie，結(jié)尾加上th如果遇到幾十幾，只變個位就可以序數(shù)詞的用法ThisisthefirstdayatBeijingSunshineSchool.

序數(shù)詞前面一般要用定冠詞the2.ShewasborninChongqing,butChengduhasbecomehersecondhometown.序數(shù)詞前已有物主代詞、指示代詞或名詞所有格修飾時，不能再用定冠詞the。四、常見表達法1.時刻的表達時刻順讀法逆讀法7：007：101：584：30seveno’clock-------sevententenpastsevenonefifty-eighttwototwofourthirtyhalfpastfour9:058:5513:1512:456:301.ninefive2.fivepastnine1.eightfifty-five2.fivetonine1.onefifteen2.aquarterpastone1.twelveforty-five2.aquartertoone1.sixthirty2.halfpastsix2.日期表達—某年讀作:nineteenninety1900讀作:nineteenhundred2009讀作:twothousandandnine2000讀作:twothousand

年份用基數(shù)詞表示，通常把它分為兩部分讀。2.日期表達—某年某月March2008讀作:March,twothousandandeight

某年某月的表達是月在前，年在后。7月9日月份+序數(shù)詞序數(shù)詞+月份寫：July9th讀：Julytheninth寫：9thJuly讀：theninthofJuly2.日期表達—某月某日2.日期表達—某年某月某日1998年10月2日寫作October2nd,1998或者2nd

October,1998讀作：Octoberthesecond,nineteenninety-eight

或thesecondofOctober,nineteenninety-eight

年、月、日同時出現(xiàn)時，可以表達為月日，年或日月，年。3.編號表達5號名詞+基數(shù)詞序數(shù)詞+名詞NumberFive/Number5thefifthnumber

名詞和數(shù)字的首字母要大寫the+序數(shù)詞+名詞4.年齡表達10歲基數(shù)詞+year（s）old基數(shù)詞-year-oldtenyearsoldten-year-oldWhenhewasinhisthirties,hebecameafamouspoet.inone’s基數(shù)詞中整十數(shù)詞的復(fù)數(shù)，表示在某人幾十歲時。Theflyingdiskwasinventedbycollegestudentsinthe1950s.

表達年代應(yīng)用inthe+帶有整十的年份的復(fù)數(shù)或-’s形式，如inthe1990s/inthe1990’s:在20世紀90年代5.貨幣表達￥9.80讀作：nineyuaneightyfen9元8角￡7.37讀作：sevenpoundsthirty-sevenpence7英鎊37便士$28.5讀作：twenty-eightdollarsfiftycents28美元50美分貨幣表達通常是用符號加基數(shù)詞6.小數(shù)、分數(shù)和百分數(shù)表達3.9讀作：threepointnine2.15讀作：twopointonefive小數(shù)只能用基數(shù)詞表達，其中小數(shù)點讀作point，零讀作zero或o，小數(shù)點前的數(shù)與前面所講的基數(shù)詞的讀法相同，小數(shù)點后的數(shù)要逐個讀。1/3讀作onethird2/5讀作twofifths分數(shù)由基數(shù)詞和序數(shù)詞組成。分子用基數(shù)詞，分母用序數(shù)詞，分子大于1時，分母要在序數(shù)詞后加s6.小數(shù)、分數(shù)和百分數(shù)表達1/5讀作a（one）fifth?讀作ahalf當分子是1時，可以用one也可以用a；當分母是2時，常用half；當分母是4時，常用quarter?讀作aquarter?讀作threequarters

表示帶分數(shù)時，應(yīng)在分數(shù)之前加基數(shù)詞和and6.小數(shù)、分數(shù)和百分數(shù)表達5%讀作fivepercent86%讀作eighty-sixpercent百分數(shù)是由“基數(shù)詞+percent”表示的7.倍數(shù)的表達在英語中，表示倍數(shù)時，once表示一倍；twice表示兩倍；三倍或三倍以上用“基數(shù)詞+times”。Herhouseistwicebiggerthanyours.Thisriveristhreetimeslongerthanthatone.倍數(shù)+形容詞或副詞的比較級+than…7.倍數(shù)的表達Theboxisthreetimesasheavyasthatone.Thistableistwiceaslongasthatone.倍數(shù)+as+形容詞或副詞原形+as…Theyspendthreetimesasmuchonclothesasoneducation.Hehasgotthreetimesasmanybooksashissister.倍數(shù)+as+many/much…+as…7.倍數(shù)的表達7.倍數(shù)的表達Thisroomisthreetimesthesizeofmine.Theirbuildingistwicetheheightofours.倍數(shù)+thesize/weight/height/length/ageof…7.倍數(shù)的表達8.約數(shù)的表達Thenheleavesforschoolataroundsixthirty.

Heisverytall,almost1.8meters.表示“大約”常用about,nearly,almost,some,around等。2.Itisplayedbymorethan100millionpeopleinover200countriesincludingChina,wherebasketballhasbeenplayedinparks,schools,andevenfactories.表示“超過”，用over或morethan3.Howoftendoyouexercise?Lessthanthreetimesaweek.表示“少于”，用lessthan8.約數(shù)的表達4.Couldyoulendmeyourbikeforanhourorso?表示“左右”，用orso.9.算式的表達3+5=8Threeplus/and