一、Read and w rite
二、Read and circle
1.There are three hundred and sixty—five days in a year.
2.Look!There are tens ofmillions stars in the sky.
3.Two thirds of the students are girls in our class.
4.September is the ninth month of the year.
5.We are in Class Three.
6.His father is in the sixties.
三、Translate into English
1.1/3 2.3/4 3.2/5 4.123450 5.75.68 6.25%7.5：25 8.5：45 9.2018\1012 10.第二课
四、概念与分类
数词分为基数词和序数词两类。基数词表示人或事物的数量（多少）；序数词表示人或事物的次序，即先后顺序，序数词前常加the。
五、基本句法功能
1.做主语：The two students often go to school on foot.
The second student is outgoing.
2.作宾语：Ineed five altogether.
He chose the fifth.
3.作定语：Six worker are working now.
Who is the firstworker to come to the factory.
4.作表语：We are fifteen.(www.xing528.com)
She is the fifteenth in our class.
六、常见表示方法
1.书写时，个位数与十位数之间加“—”，十位数与百位数加“and”。如；23 twenty—three，第23twenty—third（twenty—3rd），561five hundred sixty one，第561five hundred sixty 1st.
2.分数、百分数、小数表示法：
分数：基数词作分子，序数词作分母，分子大于1时，作分母的序数词要用复数形式。
a\one third，two thirds注：四分之一用a quarter，四分之三用three quarters.
百分数：基数词+percent.80%：eighty percent.
小数点：与汉语一样，小数点后面的数字见几读几。5.236：five point two three six.
3.编号表示法：名词+基数词=the+序数词+名词。Room nine=the ninth room.
4.时间、日期表示法：
时间：①小时+分钟：7：30 seven thirty；②分钟+past（不到半小时或半小时）+小时：4：20 twenty past four，half past four；③分钟+to（超过半小时）+小时：4：40 fourty past four.
注：一刻或十五分钟用a quarter.
年月日：英语常是月日年或日月年2018.9.10 September tenth twenty eighty.
世纪：in the+序数词+century=in the+年’s\年s，in the twentieth century=in the20th years.
注：in the+整十的复数形式，表示年纪十多岁，in the fifties.
5.数量表示法：①基数词+单位（s）+形容词或基数词+单位（s）+名词，如：16 years old，16 meters in the length；②a\an+基数词—单位—形容词+名词（单数）或a\an+单位’s+名词，如：a 16—year—old boy，an hour’swalk.
6.表示确数：基数词+hundred（thousand\million\billion）如：two thousand.
表示约数：（some\many等）+hundreds（thousands\millions\billions）+of如：（a few）hundreds of.
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