中考英语专题复习专题四数词.ppt

专题四数词,一、基数词,【温馨提示】基数词修饰hundred,thousand,million,billion,dozen等词时,这些词要用单数形式;若与介词of搭配构成短语表示不确定的数目时,这些词要用复数形式。例如:twohundredstudents二百名学生threethousandsheep三千只羊hundredsofdollars几百美元millionsofworkers数百万工人,【即学活用】1._(million)ofgirlstookpartintheHappyGirlCompetitionbutonlyfewofthemsucceeded.2.Itisreportedthatovereight_(thousand)peoplelosttheirlivesintheearthquakeinNepalthisyear.答案:1.Millions2.thousand,二、序数词,【巧学妙记】基数词变序数词规律基变序,有规律,末尾加上-th。一、二、三特殊记,面目全非要注意。八加th,九去e,ve要用f替。逢十改y为ie,后跟-th莫忘记。若想表示几十几,只变个位就可以。,【即学活用】1.The_(two)biggestearthquakesinNepalhavekilledmorethan8,000people.2.Thisisthe_(three)timethatIcometoParis.Ihavebeenheretwice.Metoo.TheworldissolargethatIwanttoseemoreofit.3.Rosereceivedaletterfulloflovefromherparentsonher_(sixteen)birthday.,4.DoyouknowwhereMrSmithsofficeis?Itsonthe_(five)floorofthetallbuildingacrossthestreet.5.HaveyouevercometoWeishanLakebefore?No.Thisismy_(one)visittoWeishanLake.答案:1.second2.third3.sixteenth4.fifth5.first,三、数词的应用,【即学活用】1.Thenumberofthestudentsinhisschoolisabouteight_(hundred).Andtwo_(three)ofthemareboys.2.Sofar,three_(quarter)ofthestudentsinourclasshaveseenthefilm.3.Shebegantoplaytabletennisinthe1970s,andbecamefamousinher_(twenty).,4.Boysandgirls,pleaseturntoPage_(five)andlookatthe_(five)picture.5.Whatsthedatetoday?ItsAprilthe_(twelve)