4英语数词.ppt

*;基数词的构成;二.基数词的读法;four thousand three hundred and twenty-one;1. hundred thousand (表示具体数字) million billion 2. hundreds thousands (表示概数) millions billions;1. — If a = 3, b=4, what’s the answer to the problem, a+2ab+1=? — the answer is___. A. twenty eight B. twenty-eighth C. twenty-eight 2. In our school several __ students are able to search the Internet . A. hunderd of B. hunderds of C. hundred;3. Many __ sheep were killed in the accident. A. thousands of B. thousand C. thousands 4. There are over nine __ workers in the factory, but __ of young people hope to work in it. A. hundred; hundreds B. hundreds; hundreds C. hundreds; hundred;基数词;*;*;;*;序数词：表示顺序的词。相当于中文的“第几...”基本构成:;*;*;*;一般编码用 名词 + 基数词 207房 三年级一班 第五部分 第一课 3 号汽车 第一中学;*;1 5;1. __ of the students __ boys in Class A. Two three; are B. Two thirds; are C. Two thirds; is 2. __ of her money __ spent on clothes. A. Two three; are B. Two thirds; is C. Two third; is 3. __ the teachers in our school is about one hundred, and __ of them are women teachers. A. The number of; two third B. The number of ; two thirds C. A number of; two thirds;*;一个半小时 两个半小时;一倍 once，两倍 twice， 三倍 three times (三倍或以上 基数词＋times);1. This building is __ that building. A. three time as tall as B. twice taller than C. three times as taller as 2. 我的箱子比你的重六倍! My box is ____________________ yours. ;① The winner is ___. He is an ___ boy . A. eight-year-old; eight years old B. eight years old; eight-year-old C. eight-years old; eight-year-old ② He came to China ____. A. at the age of 20 B. when he is 20 C. at age of 20;① The river is about ____. A. 6,000 meters long B. 6,000-meters-long C. 6,000-meter-long ;*;*;*;专题训练:;