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1、8A Chapter 4,全部, 全体, 整体n. _一生n. _相反, 对(指比赛中) prep. _ 下列的；接着的adj. _女士, 夫人, 小姐n._令人惊奇的adj. _解决, 解答vt. _ 上面的, 上述的, 上文的adj. _错误 n. _ 弄错v. _活着的adj. _敲打; 击败v. _理由, 原因 n. _ 错误地 adv. _,whole,lifetime,against,surprising,掌握词语,following,solve,above,mistake,mistake,alive,beat,reason,wrongly,lady,零 n. _ 加v. _ 加上
2、prep. _ 某数除某数；某数除以某数v. _ 划分 v. _ 度；度数n. _ 计算；估算 v. _ 大脑 n. _ (常用作复数）时代；时期 n. _ 数, 计算 v. _ 系统, 体系n. _ 发明；创造v. _ 发展；发育；成长v. _ 发明；创造n. _ 强大的，作用大的 adj. _,zero,add,plus,divide,divide,degree,calculate,brain,time,count,system,invent,develop,invention,powerful,小数 n. _ 量角器n. _ 量；测量v. _ 角度 n. _ 奇数的，单数的 adj. _
3、 圆规 n. _ 分数n. _ 减；减去；减掉 v._ 乘；使相乘 v. _ 百分数, 百分率, 百分比n._ 偶数 n. _ 相等的adj. _ 相等的事物(或数量) n. _ 等于, 比得上 vt. _,认知词汇,decimal,protractor,measure,angle,odd,compasses,fraction,subtract,multiply,percentage,even,equal,equal,equal,特别；尤其adv. _ 希腊人, 希腊语n. _ 罗马人n. _ 埃及人n. _ 用于计算的 adj. _ 算盘n. _ 准确的 adj. _ 有孔的珠子 n. _
4、金属丝, 电线, 电缆n. _ 表示；表现；相当于vt. _ 电子的 adj. _ 平方根 _ 数量n. _,认知词汇,especially,Greek,Roman,Egyptian,calculating,abacus,accurate,bead,wire,represent,electronic,square roots,amount,time whole lady reason zero degree brain system invention lifetime mistake decimal fraction,n.,the times时代 The times are differen
5、t,the（或形容词性物主代词） whole +单数名词the/his whole family;the whole class;,reasonable合理的adj.,for these reasons,invent v. invention n. inventor n.,The great inventor invented many inventions,wire amount protractor angle compasses percentage abacus bead Roman Greek Egyptian,n.,Romans Rome n.罗马,Greeks(复数） Greec
6、e n.希腊,Egyptians Egypt n.埃及,Abaci /abacuses复数,amount vi. amounts to 总计达,verb,add divide calculate develop solve mistake beat measure multiply Subtract equal represent,add up to总计,be divided into 被分成,development n. developing adj. developed adj. less developed,mistake for把和混淆,measurement n.take measu
7、rements 进行测量,take measures to improve采取措施去改善,beat sb. win a match lose to sb.,powerful above alive following amazing odd calculating accurate electronic equal,adj.,power n.,He is still alive. alive不能做定语,只能做表语,He is_ at the _ scenery in the mountain area in France.,electricity n.,amazed,amazing,Prep.
8、,minus against pluswrongly especially,adv.,be against 反对 lean against 斜靠在 play against 与打比赛,Four minus two is_.,Five plus two is_.,wrong错误的,two,seven,Phrases (Page48),in our daily life 在我们的日常生活中 an international language 一门国际语言 a decimal number 小数 draw circles 画圆 a pair of even numbers 一组偶数 on the n
9、ext page 在下一页 long ago 很久以前 an especially important number 一个特别重要的数字 calculate better than a computer 比电脑计算得好 an important part of your body 身体重要的一部分 different ways of doing sth 做某事不同的方法 measure angles 测量角度,There are different ways of writing this word.,The protractor is used for measuring angles.,p
10、hrases (page49),1.at least 至少2.his own language 他自己的语言3.ancient number 古老的数字4.in ancient times 在古代5.in many different ways 用不同的方法6.in the same way 用相同的方法7.in tens 用十进制8.the system of numbers 数字体系9.consist of 由组成 10.numbers from 1 to 9 从1到9的 11.from the biggest to the smallest 从最大到 12.make it easier for sb to do 对某人来说做某事变 得更容易,
