中考英语《数词》复习ppt课件
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中考英语数词的复习课件1.掌握基数词和序数词的形式和根本用法。
2.熟练掌握时间及日期的根本表达方法。
3.掌握日常交际活动中的数词常见用法。
4.理解数次的某些特殊用法。
如:hundreds of .1.数词就是表示事物的数量和顺序的词,分为和。
2.基数词的形式:1)从1-12分别由从one到twelve12个各不相同的词表示。
2)从13-19均以后缀-teen结尾。
3)从20-90的整十数词均以后缀-ty结尾。
表示“几十几”时,个位和十位之间需加连字符,如twenty-one, thirty-two, forty-three等。
4)数字的写法和读法:⑴十位与个位之间要加连字符“-”;⑵百位和十位之间要加and;⑶三位数以上的数,从个位往前数,每三位数加一个逗号“,”,从后往前数的第一个逗号代表thousand,第二个逗号代表million,第三个逗号是billion,注意这几个词不能用复数形式,后也不能加and。
1 . They also wroteof beautiful pieces of music for the orchestra. A. hundred B. six hundred C. a hundred D. hundreds ( )2.-How many people will e to Beijing next year? -It’s hard to say, people, I think. A. million of B. millions of C. three millions D. three millions of ( )3. It is said that the gravity(引力) on Mars is only about of the gravity on earth. A. three-eighths B. third -eighth C. three-eights D. third-eight ( )4. - How many students are there in your school,Mike? ?- There are over ___ students in our school. ? A. two thousands B. two thousands of C. two thousand D. two thousand of ( )5.There are ___ months in a year. ? A. twelve B. twelf C. twelveth D. twelfth ( )6. There are ___ students in our school. ?A. four hundred twenty B. four hundred and twenty? C. four 1)一至十九中除了第一,第二,第三,第五,第八,第九,第十二外,都在基数词后加-th。