内容正文:
专题十 数词
中考语法突破篇
【常考基数词、序数词一览表】
【拓展】
(1)基数词1~12是独立单词,需逐个记忆。
(2)基数词13~19是在个位数词的词干后加teen构成,其中thirteen,fifteen,eighteen变化不规则。
(3)基数词20~90的整十数是在个位数词后面加ty构成,其中twenty,thirty,forty,fifty,eighty变化不规则。基数词21~99的非整十数是在十位数词后面加上个位数词构成,中间加上“”。如:21 twentyone。
考点一 基数词的用法
( )1.____ people waited quietly in the street for the heroes from Liangshan, Sichuan.
A.Thousands B.Thousand C.Thousands of D.Thousand of
( )2.Last week, five ____ students took part in the sports meeting in our school.
A.thousands B.hundred C.hundreds of D.thousands of
C
B
( )3.____ students went to the university to listen to the ____ speech.
A.Thousand of; 120minutes B.Thousands of; 120minutes
C.Two thousands; 120minutes D.Two thousand; 120minute
( )4.The forest fire in Liangshan, Sichuan caused ____ deaths and nine ____ of them were firefighters.
A.thirty; tens B.thirtieth; tens C.thirty; tenths D.thirtieth; tenths
D
C
( )5.—We'll be back for our school's ____ anniversary ceremony.
—I see. That means you'll have a gettogether with your classmates in ____ years.
A.twelve; seven
B.twelfth; seven
C.twelve; seventh
D.twelfth;seventh
B
考点二 序数词的用法
【拓展】
(1)从第一到第十九的序数词除“第一”first,“第二”second,“第三”third,“第五”fifth,“第八”eighth,“第九”ninth,“第十二”twelfth变化不规则外,其余均在基数词后加上th。
(2)从第二十到第九十的整十数字的序数词的构成方法是将整十数字词尾的y变成i再加eth。
(3)从第二十一到第九十九的非整十数字的序数词,只是把个位数变成序数词,十位数不变。
( )1.The building has ____ floors and I live on the ____ floor.
A.twentyfirst; eighth B.twentyone; eighth C.twentyone; eight
( )2.We are proud of our country. The year 2019 is her ____ birthday.
A.seventy B.the seventy C.the seventieth D.seventieth
B
D
( )3.After Jack volunteered at a village school for half a year in 2018, he always expected to go there a ____ time.
A.first B.second C.two D.third
( )4.Two months ago, China tested its ____ aircraft carrier(航空母舰)built completely on its own.
A.one B.fi