中考专项复习之数词.ppt

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1.数词的种类.3.基数词的用法.2.基数词的拼写.一知识目标二能力目标能够在各类题型中正确使用基数词.数词基数词序数词(表示数目多少)(表示顺序先后)11-12____________记213-19以____________结尾注意:14,16,17,19都是在个位数后直接加______________13,15,18,需要特殊记:_______________________________3整十的基数词以_________结尾。注意:60,70,90直接在个位数词后加______________20,30,50,80特殊记_________________________40一定要注意,必须去_____,再加_________4几十几需要在十位和个位之间加________________5几百零几,几百几十几,要在百位后加____________特殊记teenteenthirteen,fifteen,eighteentytytwenty,thirty,fifty,eightyuty连字符-andPractise11、七2、二3、八4、五5、十二6、十一7、三8、十三9、十五10、二十11、五十12、三十13、四十14、百看谁译得快:seventwoeightfivetwelveeleventhreethirteenfifteentwentyfiftythirtyfortyhundredforty-five3145576689thirty-onefifty-sevensixty-sixeighty-nine457890608389threehundredandeighty-ninefourhundredandfifty-seveneighthundredandninetysixhundredandeight12位数之内的读写1先______,从右往左,__________.2从高位起读写(即从左往右读写),每节是多少就读写多少,其后加__________读写完该节后,后有九位,加单位__________读写完该节后,后有六位,加单位__________读写完该节后,后有三位,加单位__________3添加and的情况:①_________________之间加and②如果十位为0,_________________之间加and③节前有0,__________.节后无论几个0,读写一个_____注意:千百之间不加and分节三位一节单位billionmillionthousand百位和十位百位和个位不读andPractise2Canyoureadthem?2300439256123456789019200300060402,300,439,256twobillionthreehundredmillionfourhundredandthirty–ninethousandtwohundredandfifty-sixtwelvebillionthreehundredandforty-fivemillionsixhundredandseventy–eightthousandninehundredandone12,345,678,901920,030,006,040ninehundredandtwentybillionandthirtymillionandsixthousandandforty复习:Hundred/thousand/million/billion1前有具体的基数时,四个单位做_____词。即基数+四单位,这时候,四个单位____复数变化如若后跟名词,________,或者加上_______再跟名词。基数+四单位...百/千/百万/十亿基数+四单位+名词......百/千/百万/十亿......基数+四单位+ofthe+名词200____________________200名学生_____________________________________________________________2前无具体的基数,四个单位或者单独用,或者是概数修饰,这个时候,四个单位为______词。这时,四个单位必须加_____.其后若跟名词,必须加上________.数名直接加twohundredofthetwohundredofthestudents无twohundredstudentsofs数百万_____________数百万......_________________数百万棵树____________________一些百/几百_____________许多千_________________1.Myfatherhasgoteight_____stampsfromallovertheworld.A.hundredsB.hundredC.hundredsof2.Theconcertattracted____studentslastnight.A.thousandB.twothousandsC.thousandsofBCmillionsmanythousandssome/afew/severalhundredsmillionsoftreesmillionsof...Guide3想一想什么时候用到基数词?1表示数量时2年用基数词表示3在多少世纪多少年代4表示年龄时5表示钟点时6百分数,小数,分数7其他的固定用法基数复习之一:年份的表达法1875--eighteenseventy-five年份读法1要用基数词,每两位一读,如果年份以00结尾,用hundred表示。2看成数字读1997--nineteenninety-seven1682--sixteeneighty-two1900--nineteenhundred2000--twothousand/twentyhundred1509(1)Ifitisanamount(数量)(2)Ifitisadate(年代)(3)Ifitisatelephonenumber(电话号码)onethousandfivehundredandninefifteenzeronineonefivezeronine“0”在英语里读成“o”or“zero”基数复习之二:世纪年代表达在多少世纪多少年代:因为是一段时间,所以用____因为特指,所以加____因为年代为10年,所以加_____,也可以加____世纪读写译要特别注意:写英文时需______译汉语时需______读英文时年代需______eg:在20世纪40年代______________________inthe2010s_________________________inthe1940s/inthe1940’s读作inthenineteenforties在21世纪10年代inthes’s-1+1读整十复数inthe+世纪年代(年代加s/’s)基数复习之三:年龄的表达1他18岁了_______________________________________________________________________________________2有关年龄的固定短语:在某人多少岁时___________________在某人几十多岁时_____________________eg.1Tomcouldplaythepiano____________________(在6岁时)2Susangotmarried__________________(在她30多岁时)3A_____schoolboy,LiMing,playedthepianoattheendoftheparty.A.12-yearoldB.12-years-oldC.12-year-oldHeiseighteenyearsoldHeiseighteenHeisaneighteen–year-oldboyattheageofinone’s+整十的复数Cinherthirtiesattheageof6基数复习之四:钟点表达法1_______法:先读小时,再读分钟,数字是几读几。零读___________;整点可以加上_______4:00_______________4:05_________________4:30_______________4:46__________________2_______法:先读分钟,再读小时.此法必须借助于介词past或者to。具体为:(1)小于或者等于30分时,用介词________(过)分钟+past+时钟几点过几分5:10(5点过10分)读成2:02(2点过2分)读成8:26(八点过26分)读成tenpastfivetwopasttwotwenty–sixpasteightfourzero/ofivefour/fouro’clocko’clockzero/o顺读fourforty-sixfourthirty逆读past(2)大于30分用介词______(中文译为“差”)如:7:47(差13分到八点)读成1:58(差2分到两点)读成twototwothirteentoeight注意:半小时还可以用___________;15分钟还可以用_______________9:30__________________________________7:45____________________________________说明:使用逆读法,15分、45分不用fifteenminutes,30分不用thirtyminutes,o’clock只用于整点之后。toquarterhalfninethirtyhalfpastninesevenforty-fiveaquartertoeight即:60-分钟数+to+钟点数+1:中文译为:差几分到几点Practise:Canyoureadthem?1:302:15:3:456:387:259:50onethirtyhalfpastonetwofifteenaquarterpasttwothreeforty-fiveaquartertofoursixthirty-eighttwenty-twotoseventwentyfivepastsevenseventwenty-fivetentotenninefifty基数词复习之五:百分数和小数1百分数表达:百分之几_____________________百分之几的..._______________________注意:百分数作主语,谓动取决于__________eg:40%________________40%的学生___________________________eg,Eight-fivepercentofthegirls___________(study)hard.Thirtypercentofthetime__________(have)beenusedup.2小数表达:小数点前是几读几,小数点后的数字要________________小数点读作:_____________eg12.365读写作:______________________________3.06读写作:________________________________of后的名词fortypercentofthestudentsfortypercent基数词+percent+of基数词+percentstudyhas依次读pointtwelvepointthreesixfivethreepointzerosix基数词复习之六:几个半的表达1一...半one+and+ahalf+_________one/a/an+__________+andahalfeg一个半小时____________________________________________________________________2几...半数词+and+ahalf+__________________数词+__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