《初总复习数词》PPT课件.ppt

Numbers数词,multiply；times,add;plus(and),subtract;minus,divide,equal;be,point,zero,+,-,X,=,.,0,（加）,（减）,（乘）,（除）,（等于）,（点）,（零）,degree,（度）,decimal numbers,odd numbers,even numbers,fractions,percentages,degrees,ordinal numbers,cardinal numbers,1;3;5,2;4;8,2.9;0.5,2/3;1/5,20%;5%,18031,one;two,first;second,(奇数）,(偶数）,(小数）,(分数）,(百分比,百分率),(度数）,(基数词）,（序数词）,eleventwelvethirteenfourteenfifteensixteeneighteennineteentwenty twenty-one,zero/oonetwothreefourfivesixseveneightnineten,thirtyfortyfiftysixtyseventyeightyninetyhundredthousandmillionbillion,基数词,第一第二第三第四第五第六第七第八第九第十,first second third fourth fifth sixth seventh eighth ninth tenth,序数词,第十二第十四第十八第十九第二十第二十一第三十第四十二第九十五第一百,twelfthfourteenth eighteenth nineteenthtwentieth twenty-first thirtieth forty-second ninety-fifth one hundredth,1st 2nd 3rd 4th,12th,21st,42nd,Fractions分数-1/3,one third,3/4,2/3,4/5,1/2,1/4,two thirds,four fifths,one/a half,one fourth/one(a)quarter,three fourths/three quarters,分子用基数词表示,分母用序数词表示,当分子大于1时,分母要加复数“S”,one second,Decimal numbers 小数0.364.309百分数25-8-,zero point(naught)three six four point three o nine,twenty-five per cent,eight per cent,Read these numbers:100,000 one hundred thousand5,367,982 five million,three hundred and sixty-seven thousand,nine hundred and eighty-two,读编号时常用基数词:No.1(读：number one)第四课 Lesson 4(读:Lesson Four/the fourth lesson)第四十八页 Page 48(读:Page forty-eight)练习五(读：Exercise Five)803房 Room 803(读:Room eight o three),第一百零五中学 No.105 Middle School Number one o five middle school 32路公共汽车 Bus No.32/the number thirty-two bus 第五排Row Five/the fifth row电话,4729046=2822886=,four seven two nine o four six,two eight double two double eight six,年、月、日表达法1.年份（前面用介词in）1990 2000 2002 2020 1900,nineteen ninety/nineteen hundred and ninety two thousandtwo thousand and twotwenty twentynineteen hundred,2.日期（前面用介词on）October 1st,1949 October the first,nineteen forty-nine or:the first of October,nineteen forty-nine注：遵循由小到大原则，日、月、年或 月、日、年,钟点的表示及读法（钟点前用介词at）1）正读法：先读小时，再读分钟（中间不用介词）2）倒读法：先读分钟，再读小时（中间用介词to/past）ten twenty-five/twenty-five past ten eleven fifty/ten to twelve five thirty/half past five six forty-five/a quarter to seven eight(eight oclock),10:25,11:50,5:30,6:45,8:00,hundred,thousand,million前有数词修饰时，不用复数.e.g.three hundred seven thousand ten million two billion但：特殊情况也有复数-详见P33易混清单1.表示不确定的数字时，后面有of几百、几千、几百万、几打 hundreds of thousands of millions ofdozens of,several hundred some thousand many million 表示确切的数字,2.在表示一排或者一组的情况下：他们三三两两的来了。They arrived in twos and threes.3.表示几十岁：在他四十多岁时 in his forties-41-49 四十出头：年近五十4.表示年代：二十世纪二十年代 in the 1920s,in his early forties,in his late forties,基数词名词形容词”结构,“基数词名词形容词”只能用来放到名词前作 定语。如：她是三岁的女孩子。She is a 3-year-old girl.注：这种结构中名词不能用复数，同时只能作定语。用作表语时，不用连字符，名词有复数。如：Tony今年十岁。Tony is 10 years old this year.Tony is a 10-year-old boy.二十天的假期 a twenty-day holiday twenty days holiday,序数词前面一般要加the,但是也有不加的情况，这个时候表示“又一，再一”的意思。他们又要了个男孩。第二个男孩名字叫PeterThey had a second child in 1988.The name of the second boy is Peter.,Practice,1.Dick,it is the _ time in _ days that youve made the same mistake.A.two,three B.second,three C.two,thirdD.second,third2.Wang Qing is a _ boy.A.five-years-old B.five-year-oldC.five year old D.five years old3.The low temperature will be minus 5.The underlined pare means_ A.5 B.-5 C.0.5 D.54.Im afraid we have to get_for the meeting.A.twenty more chairs B.more twenty chairsC.two hundreds chairs D.twenty another chairs,B,B,B,A,5.Youve done it twice.Why not try _ time?A.third B.the third C.a third D.once6.There are _ floors in the building and he lives on the _ floor.A.eighteen,fifteen B.eighteenth,fifteenthC.eighteen,fiveteen D.eighteen,fifteenth7.Its _ from our home to the zoo.A.two and a half hours walkB.a half and two hours walkC.two hours and a half hours walkD.two and a half hours walk,C,D,A,8.Will you be back in _?A.one or two minutes B.one minute or twoC.two minutes or one D.two or one minute9.A UN report says that the word population will pass six billion by the end of _ century.A.twentieth B.twentyC.the twentieth D.the twentyth 10.We learn English as _ language.A.the second B.a second C.second,A,C,B,a minute or two,也可以用after和before 表示时间，情况分别与 past 和 to 相当。如：1It is five minutes before six oclock 现在是六点差五分。2The correct time is three minutes after ten 准确时间是十点三分。,序数词前面一般要加the,但是也有不加的情况，这个时候表示“又一，再一”的意思。他们又要了个男孩。第二个男孩名字叫PeterThey had a second child in 1988.The name of the second boy is Peter.,倍数的表示法a.倍数（或分数）+as+adj.+as 我有你两倍倍那么多。Ihavetwice/doubleasmanyasyou.b.倍数（分数）+thesize(amount,length)of 地球是月球的49倍。Theearthis49timesthesizeofthemoon.,c.倍数（分数）+形容词（副词）比较级+than 我的年龄比你大一倍。I am once older than you.d.还可以用by+倍数，表示增加多少倍 今年粮食产量增加了4倍。Theproductionofgrainhasbeenincreased _ thisyear.,增长到100万,increase to one million,byfourtimes,一倍 两倍 三倍 四倍,once,twice double,three times,four times,