第7讲 数词重点讲练（50题） -【暑假自学课】2023年新八年级英语暑假精品课（牛津上海版）

第7讲 数词重点讲练 1. 掌握基数词的用法 2. 掌握序数词的用法 3. 掌握分数和百分数的用法 数词要点总结 【知识梳理1】 基数词 1. 基数词注意事项： 1. 基数词/several + hundred/thousand/million/billion, 其中 “hundred, thousand, million, billion” 只能用单数形式。 several hundred years ago two thousand students over seven hundred people 表示“几十年代” 或 “几十岁”时，用基数词的复数形式。 in 1970s in one's twenties/thirties/forties… 1. 含基数词的复合形容词: “基数词–名词单数(–形容词)” + 名词。 a two-week holiday an eleven-year-old boy The street is eighteen metres wide. The boy in blue is eleven years old. 1. 基数词与“多少又一半”的表达。 1 “数词 + n.(单/复数) + and a half” : a hour and a half, two months and a half 2 “数词 + and a half + 名词复数” : one and a half hours, two and a half months  【例题精讲】 例1.选择正确的答案填空 1. Each of us has to write a report every two weeks. A. two-hundred-word B. two-hundreds-word C. two-hundreds-words D. two-hundred-words 2.A new study proves a_________ walk every day is enough to keep people away from becoming fat． A. 30-minute B. 30 minute’s C. 30-minutes D. 30-minutes’ 3. More than ________ years ago, people knew little about the universe. A. two thousands B. two thousand C. thousand of D. thousands of 例2.填入所缺单词 1. ---Do you know what Taiwan Island was like t_________ of years ago? ---Yes. About 20,000-30,000 years ago, it was part of the mainland. 2. The boy has collected more than _________（四十）stamps from different countries. 3. ( ) How do we say “99,118” ? A. ninety-nine thousand and one hundred and eighteen B. ninety-nine thousands one hundreds and eighteen C. ninety-nine thousand one hundred and eighteen D. ninety-nine thousands and one hundred and eighteen 【知识梳理2】 序数词 序数词注意事项： 1) 单词拼写 基数词 one two three four five nine twelve twenty hundred 序数词 first second third fourth fifth ninth twelfth twentieth hundredth 2) “the + 序数词”; 特例： ① 当有人称代词 (my, your, his, her…) 时，省略 “the” It’s my third time to visit Yu Garden in Shanghai. Her second answer to this question is still w