八年级英语上册 Module 1 Amazing things Unit 2 Numbers Grammar课件 （新版）牛津深圳版.ppt

Grammar,(1)Cardinalandordinalnumbers基数词和序数词(2)Instructionsaboutnumbers数字的简单运算,Whatiscardinalnumbers?,基数词cardinalnumbers是表示目的的词，简单来说我们用基数词来数数，表示单位个数，数目；基数词有1,2,3,4onetwothreefour,在基数词中，表示几百，几千等时，英文中的“百，千，百万”等后不加s。如:300写成“threehundred”而不是“threehundreds”E.g.About_filmswereshownduringthe15thShanghaiInternationalFilmFestival.A.twohundredofB.twohundredsofC.twohundredD.twohundreds.,Readthenumbersandfindrules,thousand,million,and,数字读法：英语数字中读法是三位一分，只有百，千，百万，十亿，万亿，而且在写较大的数字时，一般在百位和十位中间加“and”.如34,567读成“thirty-fourthousand,fivehundredandsixty-seven”,BookBP19Exercise,Whatisordinalnumbers?,序数词ordinalnumbers简单来说是用来表示顺序，有“第几”之意，如:第一;第二；第三thefirst;thesecond;thethird序数词的构成一般是在基数词的后面加上“th”,但也有例外的，如first,secondandthird.,-th,first,2,third,fourth,twelfth,twenty-third,twenty-eighth,19,1.Howlongistheriver?Its_meters.A.aboutthreehundredandseventeenB.abouttwohundredsandforty-fiveC.morethantwohundredsD.lessthanthreehundredsandseventy2.Canyouwritethenumbereight-fourthousand,sixhundredandtwenty-six?Yes,itis_.A.84662B.84626C.48662D.48626,3.Howmanystudentsarethereinyourschool?Thereare_.A.thesixhundredandsixty-fiveB.sixhundredsixty-fiveC.sixhundredsandsixty-fiveD.sixhundredandsixty-five4.HanMeimeiis_toarriveatschooltoday.Noonearrivedearlierthanher.A.theoneB.thefirstC.firstoneD.1st,“加减乘除”的表达：,加：add;plus减：subtract;minus乘：multiply除：divide(其中plus,minus为介词，其余为动词，及物动词),Languagepoints,1.Multiply7by8“7乘以8”,其中multiply是及物动词2.“7multipliedby8is56”中，is是谓语动词；multiplied在这里是过去分词表被动,Tips,1.我们把数看成一个整体，所以在进行数字运算得出结果时，谓语动词用单数is/equals（等于）2.下列选项能正确表达“11+1=12”A:“11add1is12.”B：“11plus1equals12.”,因为add和is都是动词；plus是介词,ubtractfrom,13inus5813-5=8,ultiplyby,7ultiplied85678=56,ivideby,16ivided44164=4,ddand,9lus6159+6=15,ddivide,14lus4ivide2,9(14+4)2=9,Correctthemistakes,1.2add5is7._.2.7subtract3is4._.3.25divideby5equal5._.4.Multiply3by9equal27._.,2plus5is7,7minus3is4.,25dividedby5equals5.,3multipliedby9equals.,1._7by8.7_by8equals56.A.Multiply;multipliedB.Multiply;multiplyC.Multiplied;multiplyD.Multiplied;multiplied2.About_filmswereshownduringthe15thShanghaiInternationalFilmFestival.A.twohundredofB.twohundredsofC.twohundredD.twohundreds.,3.Myfathers_birthdayiscoming.Sowewillput42candlesonthecake.A.42B.the42thC.thefourty-secondD.fourty-second4.Add23and5.23