2019高考英语基础知识复习系列之--数词.pptVIP

【考例】 Take the lift to the ________ (第十) floor, and you will find the gym.? （陕西2014单词拼写） * 1.基数词、序数词和分数词的构成及基本用法。 2.数词作主语时的主谓一致。 数词主要包括基数词、序数词和分数词。基数词是表示数目多少的数词，序数词是表示先后顺序的数词。分数词由基数词和序数词构成。 一、基数词 1. hundred, thousand, million, billion, dozen, score等前有具体数字或several, a few等修饰时，一般用单数。它们的复数形式后常接of 短语，表示不确切数目。 e.g. This vase is worth several hundred dollars. There had been dozens of attempts at reform. 2. 表示年岁时，用“in one’s +逢十的基数词的复数”。 e.g. in his forties。 3. 表示年代时，用“in the +逢十的基数词的复数”。基数词的复数若用阿拉伯数字表示，可直接加s，也可加’s。 e.g. in the 1980’s / 1980s。 二、序数词 1. 序数词前通常要加定冠词the或与形容词性物主代词一起使用，在句中可作主语、宾语、定语和表语等。 e.g. the third chance, my first language 2. 序数词前也可加不定冠词，表示“再一，又一”。 e.g. She could not go through that a second time. 三、分数词 1. 分数词是由基数词和序数词构成，分子用基数词表示，分母用序数词表示；除了分子为1的情况下，序数词都要用复数形式。 e.g. 1/3 one third；3/5 three fifths。 2. “分数/百分数+ of +名词/代词”作主语时，谓语动词的数与名词或代词的数保持一致。 e.g. Two-thirds of her spare time is spent on housework. 80 percent of the houses were damaged in the big earthquake. 四、常见考点 高考对数词的考查主要集中在年龄表达法、年代表达法、序数词前加冠词及数词作主语时的主谓一致等。 tenth?? 根据括号内的汉语提示补全下面句子。 1. Adults catch real flu about once ____________________________ ( 每五年), scientists calculate, based on a field study. 2. There were a million people in Lahore in April 1948, _____________________ ( 他们当中五分之二) were housed in camps. every fifth year / every five years two-fifths of whom 3. The science editor of The Daily Telegraph has published ________ ______________ ( 几千篇) his articles since 1996. 4. Early ________________________ ( 在二十世纪七十年代) no one had any idea that the woman would become a millionaire by planting flowers. several in the 1970s / 1970s thousand of 5. My grandpa looked quite healthy though he was ___________________ (七十多岁了). 6. When the computer failed ___________ ( 又一次), he drilled holes near the fan to help it cool faster. in his seventies a second time *