序数词、分数课件

first second third fourth fifth sixth seventh eighth ninth
1st 2nd 3rd 4th 5th 6th 7th 8th 9th
twelfth twentieth thirtieth fortieth
12th 20th 30th 40th
fiftieth 50th sixtieth 60th seventieth 70th
in 3、My son was born _____ October 2010.
in 4、People are very poor _____ the fifties.
分数，小数， 百Biblioteka 比热门考点一：hundred、 thousand、 million、 billion 的考查方法
1．和“of”连用，前面不能有具体的数,而且这四个词的本身 必须用复数。如 hundreds of 数以百计的 millions of 数以百万计的 thousands of 数以千计的 billions of 数以十亿计的
热门考点二：其它重要表达方式的考法 1. 在某人多少岁 in + one’s + 几十的复数形式 eg: My parents are in their fifties. 2．a five-year-old boy an eight-year-old girl 3．100-meter-long bridge (100米长的桥) 10 meters deep (10米深) 4．ten-minute walk = ten minutes’ walk 5. two more hours= another two hours
四.数词的表示法 — 编号 一般编码用 名词 + 基数词 207房 Room 207 三年级一班 Class one Grade three 第五部分 part five = the fifth part 第一课 lesson one = the first lesson 3 号汽车 Bus No.3 = the No.3 bus 第一中学 No. 1 Middle School
1、This is Mr White’s ____ visit in Beijing. He has been there twice before. A. two B. second C. three D. third 2、There are ____ months in a year. October is the ____ month. A. twelve, ten B. twelfth , tenth C. twelve, tenth D. twelfth, ten 3、There are ____ people in Peter’s family. They live on the ____ floor in tall building. A. six, eighteen B. six, eighteenth C. sixth, eighteenth D. sixth, eighteen
注：通常前面要加定冠词 the；但出现不定冠词a 或an时，则表示“再—”，“又—”。 We'll go over it a second time．
特别说明： 1、世纪、年代、年份、月份时，用介词in 2、某一天、星期前用介词on 3、某一天早晨、下午或晚上时，用介词on。
1、____ On a cold morning，the old man died lonely in his house． 2、The girl was sent to hospital ____ on the morning of March 20.
英语 专项复习 数词
Numbers
序数词
1. 序数词一般由基数词后加th构成，前面 一般加定冠词the。 the eighteenth 第18 第200 the two hundredth
2. 以y结尾的基数词构成序数词时，先把y 改成i，再加eth。 the fiftieth 第50 the twentieth 第20 3. 不规则的序数词有以下几个 first, second, third, fifth, eighth, ninth, twelfth（一定要记住）
eightieth 80th
ninetieth
90th
C．序数词的缩写形式:阿拉伯数字后加上th。 irst—lst second—2nd third—3rd fourth—4th twentieth—20th twenty-third—23rd D．序数词的句法功能 序数词在句中可作主语、宾语、定语和表语。 The second is what I really need．（作主语） He choose the second．（作宾语） We are to carry out the first plan．（作定语） She is the second in our class．（作表语）
4、 _____ is the easiest of all. A. Lesson one B. The Lesson one C. Lesson First D. The first lesson
5、 The foreign guests stayed in ____ last night. A. Room 608 B. the Room 608 C. the 608 room D. 608 the room
选择填空。 1．March is ____month of a year． A． a three B． the third C． a third 2．We will have a meeting at 8:05____． A．five to eight B．eight five C C． ．eight eight o o five five 3．Eight plus eight is____. A． ．sixteen sixteen B．sixty-four C．one A 4．He is an ____boy． B ． eight-year-old A．eight years B ． eight-year-old C．eight-years-old 5．We will have a___ walk． A．ten minutes B．ten minutes' C．ten-minutes
many hundreds of students. 好几百个学生
2．当它们的前面有具体的数修饰时,其本身即不能用复数， 不能和“of”连用。 two thousand students 两千名学生
five hundred cars
五百辆车
1、By the end of last year, we had planted about five ____ trees. A. hundred B. hundreds C. hundred of D. hundreds of 2、____ books must be produced for the children. A. many thousands B. many thousands of C. many thousand of D. many thousand
( B )5、Guangzhou Tower is almost _____． A．600 meter high B．600 meters high C．600-meters-high D．600-meter-high ( A )6、—Have you got enough books? —No. I need ____. A. ten more B. more ten C. ten another D. other ten
4. 表示第几十几时，十位用基数词， 个位用序数词，十位和各位用连字符连接
第三十一 第六十五 第七十四 第九十九 第八十二 thirty-first sixty-fifth seventy-fourth ninety-ninth eighty-second
5. 编号的三种表示法 1）名词＋基数词 Lesson Three 2）the＋序数词＋名词 the third lesson 3）名词＋数字 Lesson 3 如：5班 Class Five = the fifth class = Class 5
.
( A )1、The has written a ___ composition． A．three-hundred-word B．three- hundred- words C．three hundreds words D．three hundreds word ( D )2、Every day the old woman sits here for ____. A. one and half hour B. one and a half hour C. one hours and a half D. one and a half hours ( C )3、He became very rich ____. A. in his forty B. in the forties C. in his forties D. in the forty ( B )4、Mary is ____ girl. A. an 8 –year- olds B. an 8-year-old C. an 8 -years -old D. a 8-year-old