第四章 数词导学案-2023届中职高三英语一轮复习

第四章 数词导学案 考点一：基数词、序数词的变化形式 1、请观察下例表格，并在空白处填上相应的序数： one- eleven- eleventh/11th thirty- 归纳：记忆技巧 基变序，有规律， 词尾加上______；（fourth，sixth） 一、二、三，特殊记，结尾字母st，nd，rd；（first，second，third） 八____，九去___，（eighth，ninth） ve要用____替；（fifth，twelfth） ty将y改成____，再加th, 若是碰到几十几，只要变个位就可以。 two- twelve- forty- three- thirteen- fifty- four- fourth /4th fourteen-fourteenth/14th sixty-sixtieth/ 60th five- fifteen- seventy-eventieth/70th six- sixteen- sixteenth/16th eighty- eightieth/80th seven-seventh/7th seventeen- seventeenth/17th ninety-ninetieth/ 90th eight- eighteen- eighteenth/18th hundred- nine- nineteen- nineteenth19th twenty-one – ten- tenth / 10th twenty- twentieth/20th thirty-three- 2、再观察表格归纳：1）基数词13-19，由后缀________构成，注意：thirteen, ___________, _________有变化；2）基数词20-90等整十位数，由后缀________构成，注意：thirty, __________, ________,__________有变化。 ( )1. There are ______ days in a week. A. the seven B. seventh C. the seventh D. seven ( )2. December is the ______ month in a year. A. twenty B. twelve C. twelfth D. twentieth \ 考点二：基数词的读法 （1）百位数以上的基数词的写法是：在个位数和十位数之间加连字符号“-“，在百位数和十位数之间一般要用连词“and”,千、百之间不加任何东西。 Eg: 5,991,892,725 five billion, nine hundred and ninety-one million, eight hundred and ninety-two thousand, seven hundred and twenty-five. 4,759 _______________________________　　 (2) 英语中没有“万”的单词，要用thousand来表示，eg: 10万 _______________ (3) hundred _________，thousand 千，million _________, billion __________的用法： 1）前面有具体的数字时，这几个单词一律用_______ 形式，eg: 500 five __________ 2) 当表示一个不确定的数字时，要在这几个单词后加_____, 并且要和介词______连用，构成词组，表示一个概数。Eg: 数以百万计的_____________________ ( )1.---Can you write the number eighty-five thousand, six hundred and twenty-six? --- Yes, it is. ___________. A. 85662 B. 85626 C. 58662 D. 58626 ( )2. It is reported that ______ people in the world are suffering from the H1N1flu. A. ten thousands B. thousands C. thousands of D. thousand of (    )3．There are ___________ days in a year．