高考英语备考语法精要讲解数词

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　　1、数词在使用时应注意的问题
　　易错数词：
　　年月日及介词
　　计算用词
　　和数字相关的词
　　2、综合
　　1) 数字表达：
　　123,856,709  
　　one hundred and twenty-three million, eight  hundred and fifty-six thousand, seven hundred and nine
　　2) 年月日
　　in the morning; on the  morning of   September 1;
　　in  September;  in 1988;  on September 1 (on the first of September)   
　　3、计算
　　＋　Six  and five  is (are) eleven.
　　Six hundred plus forty is (equals)  six hundred and forty.
　　－　Four  from seven is (leaves) three.
　　Six hundred minus one hundred equals five hundred.
　　X       16 x 11 = 176
　　Sixteen times eleven is (makes) one hundred and seventy-six.
　　÷      9 ÷ 3 = 3
　　Nine divided by three equals three.
　　4、dozen, score
　　A.  three dozen eggs;  three dozen of these eggs;  dozens of eggs
　　B.  three score years;  a (three) score of people;  scores of times
　　5、小数，分数，百分比引导的短语作主语时的主谓一致问题．
　　分数和百分数引导的短语作主语，其谓语动词的数应根据分数和百分数后面的名词来确定．如果是可数名词的复数，其谓语动词用复数形式；如果是不可数名词或单数可数名词其谓语动词用单数形式．
　　More than 40 percent of the students wear glasses.
　　70 percent od the fund(资金) was supplied by the Government.
　　6、一个半．．．的表达法．
　　one pound and a half ,one and a half years