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1、7B Unit 1 Grammar 7B Unit 1 Grammar Cardinal numbersCardinal numbers（基数词）（基数词）（基数词）（基数词）and Ordinal numbers(and Ordinal numbers(序序序序数词）数词）数词）数词）We use cardinal numbers almost every day.No.11 Bus No.28 Shangwuneihuan RoadNo.21 playerPage 2810 yuan0zeroonetwothreefourfivesixseveneightninetenCardinal n
2、umbers（基数词）（基数词）eleventwelve11121314151617181920nineteenthirteenfourteenfifteensixteenseventeeneighteentwenty123456 7891030405060708090twenty-one twenty-two2122232425twenty-three twenty-four twenty-fivethirty fortyfiftysixty seventyeightyninetylarge numbers100one hundred10,000ten thousand100,000one
3、hundred thousand1,000,000one million1,000one thousandX10=X10=X10=500,000five hundred thousand5,678five thousand，six hundred and seventy-eight4,886,103銉佰捌拾捌万陆千壹佰零叁元整亿 千 百 十万 千 百 十 元 角分￥4 8 8 6 1 0 3 0 0four million,eight hundred and eighty-six thousand,one hundred and three9,156,018nine million,one h
4、undred and fifty-six thousand and eighteen10,120ten thousand,one hundred and twenty 549,390,090five hundred and forty-nine million,three hundred and ninety thousand and ninety Read the phone number：Miss Wang 8433,2901Me 8432,1201 eight,four,three,three;two,nine,o,oneeight,four,three,two;one,two,o,on
5、eyou double threeThe CN Tower is 1,815 feet tall.Read the number:=The CN Tower is 1815 feet in height.long=in lengthin 在在.方面方面在尺寸上在尺寸上在面积上在面积上in sizein areaRed Square in Moscow is about 91,000 square metres in size.正方形正方形广场广场平方平方方形的方形的People from about 180 countries and areas live in a New York.面积面积
6、有有.面积面积areahave an area of.France has an area of over 260,000 square miles.Tokyo,the capital of Japan,has over 13,000,000 people.-th Ordinal numbers（序数词）（序数词）hundredthfour _ hundred _five _ twelve_eight _nine _ twenty _ forty _fourthfifth eighthninthtwelfthtwentiethfortieththirdone _two_three _first
7、second1 基变序很简单：基变序很简单：1,2,3 要全变要全变 first,second,third2.以以ve结尾的，结尾的，ve变为变为f,再加再加th3.以以ty结尾的，结尾的，y要变为要变为ie,再加再加th4.十位或百位的基数词，只将其个十位或百位的基数词，只将其个位上的基数词变为序数词。如位上的基数词变为序数词。如fifty-five-fifty-fifth 1.hundred,thousand,million,billion.(1)这些词前如有表示具体的数字的词，这些词前如有表示具体的数字的词，它们不能加它们不能加“S”；（2）这些词前如没有表示具体数字的词，）这些词前如没
8、有表示具体数字的词，则它们需加则它们需加“S”，与，与of连用；连用；三百人三百人成千上万人成千上万人three hundred people thousands of people 2._(4)of them went to the factory.I want _(2).My classmate is _(18).Fourtwoeighteen3.Today we are going to study Lesson _(5).He lives _.(801房间）。房间）。4.The accident took place _ 年份用基数词，日期用序数词，年份用基数词，日期用序数词，(200
9、6年年7月月1日）日）5.Its _(2点钟）点钟）6._is three.（1+2=3）_is thirty.（5X6=30）7._percent of them is water.(30%)8._of the books are mine.(五分之二）五分之二）9._girl is behind me.(一位一位21岁的女孩）岁的女孩）10.在在19世纪世纪70年代年代_11.在某人在某人30多岁时多岁时_Fivein Room 801on July 1st,2006twoOne plus two Five times six ThirtyTwo-fifthsA twenty-one-ye
10、ar-oldin the 1870sin ones thirties1.the+序数词；基数词不加序数词；基数词不加the2.a/an+序数词序数词，表示，表示“又一、再一又一、再一”；try a second time3.of the+基数词，表示范围；基数词，表示范围；三个女孩中三个女孩中of the three girls4.序数词表达名次时，不加序数词表达名次时，不加the；排第二排第二come second5.序数词前有了限定词，则不再加序数词前有了限定词，则不再加the；我的第一台电脑我的第一台电脑my first computer1.Kangkang is a school bo
11、y.He got a good gift on his_birthday.A.fourteenth B.fortieth C.the fortieth D.the fourteenth2.Tom will sell_stamps to help the poor children in the west of China.A.thousand of B.two thousand of C.two thousand D.two thousands of 3.When is your mothers birthday,Tina?Its on July the _.A.twenty B.ninth
12、C.five D.the fifth A B C D4.Have you seen the CCTV news on TV?Yes,_children had a good festival onthe _Childrens Day.A.millions of;sixty B.ten millions;sixtiethC.millions of;sixtiethD.ten million;the sixty5.More than two_years ago,people knew little about the universe.A.thousands B.thousand C.thousa
13、nd of D.thousands of 6.There are _months in a year.October is the _month.A.twelve;ten B.twelfth;tenthC.twelve;tenth D.twelfth;ten7.Look at the numbers 2,5,11,23,47 and 95.What will be the next number?A.191 B.127 C.158 D.2768.Have you got everything ready for the party?No,we need_.A.another two glass
14、es B.other two glassesC.two other glasses D.two another glasses9.It took me _to find out the answer to the question.A.one and half hoursB.one and a half hours C.one and a half hour D.one and half hour 10.Which is the biggest number of teh four?A.two-thirds B.a half C.a quarter D.one third11.Lucy is
15、very excited because today is her _birthday.A.five B.fiveth C.the fifthD.fifth12.Now,everybody,please turn to Page_and look at the _picture.A.Fifth;five B.Five;fifth C.Fifth;fifth D.Five;five13.He wrote many books in his _.A.thirty B.thirtieth C.thirties D.thirtieths14.Ive tried twice,but Ill try _time.A.the third B.a third C.third D.three