上海版牛津初中英语课件8A Cha.pptVIP

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. _ 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. _ 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 different,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） Greece 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 measurements 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.,minus against plus wrongly 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 next 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.,phrases (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,It requires at least two days.,We can solve this problem in many different ways.,Water consists of hydrogen and oxygen.,Wahshing machines make it easier for people to wash their clothes.,Page49,1.one of the first 最之一 2.so fast and accurate that 如此地快和准确以致于 3.the beads on the wires 算盘杆上的算盘珠 4.start from the bottom wire 从底部的算盘杆开始 5.the picture on the right 右边的图片 6.a modern electronic calculator 一个现代的电子计算器 7.calculate percentages and square roots计算百分比和平方根 8.in a flash 在刹那间 9.do a calculation 进行计算 10.in ones whole lifetime 用某人一生的时间,Shanghai is one of the largest cities in the world.,He was so excited that he couldnt speak.,(Page49),call the brain a living computer 把人脑叫做电脑 a more powerful calculator than 一个比更强大的计算器 give an answer 给出一个答案 a lady from India with an amazing brain 一名来自印度有着惊人大脑的女士 calculate like lightning 像闪电一样计算 solve a problem 解决一个问题 be given a problem to solve 被给一个问题来解决 took fifty seconds to find 做某事花时间 begin doing 开始做某事 have to 不得不 programme sth with instructions 用来编程序 use.to do 用来做某事 the problems above 以上的问题 powerful enough 足够强大 on page 59 在59页,It took him two hours to finish his homework last night. He _ two hours _ _his homework last night.,spent,in,finishing,Lily has to tell the truth, _ _ ?,doesnt,she,The book is _ _ for me to read.,easy,enough,More phrases,give a reason for your answer就答案给出理由 start with 以开始 pay attention to 注意 be quiet 安静 have a seat 坐下 be afraid 恐怕 make a noise 吵闹 be late for=come late to 迟到 A multiplied by B is C A divided by B is C A total of 15 总数为15,We must pay attention to your teacher in class.,be afraid of be afraid to do be afraid that,He handled the test tube with care, because he was _ _ breaking it.,afraid,of,3 _ _7 is 21. 3乘以7等于21。,multiplied by,15 _ _3 is 5. 15除以3等于5。,divided by,Page 55-60,cardinal numbers 基数词 What can I do for you? copy downwrongly check sth with sb. a gift of 35,000 fellow students draw a line graph Not at all rises to falls to 44% of our classmates in the same year the average age/height/weight/temperature Whats the population of China?,Can I help you? Is there anything I can do for you?,The line graph shows the number _ _1005 in 2003,rises,to,图中表示在2006年数字再次下降到907。 The line graph shows the number _ _ _ 907 in 2006.,falls again,to,练习：,一 用下列词语的适当形式完成句子 consist of stand for invent the zero do calculations better than fromto a decimal number sothat come from know about 1. He walked _fast_ I couldnt catch up with him. 2. Indians then _. 3.The committee_ ten numbers. 4. We go to school _ Monday _ Friday. 5. What does T.G. _in T.G. Smith? 6. A very powerful machines for _. 7. What do you _ the computers? 8. He is _ me at swimming. 9. 0.88 is _. 10. Japanese _ Japan.,so,that,invented the zero,consists of,from,to,stand for,doing calculations,know about,better than,a decimal number,comes from,综合阅读： Numbers：Everyoneslanguage How many languages do you know? Everyone knows at least two -his or her (A)_ language and the international language of numbers. Ancient numbers In ancient times , people wrote numbers in many different ways , as these pictures of the number 6 show. However, they nearly all counted (B)_ -in tens. Zero The system of numbers that nearly （C）everyone uses today consists of the numbers from 1 to 9 and 0. With these ten numbers, we can write any number from the biggest to the smallest. The Indians first invented and developed the 1 to 9 system of numbers. They then invented the zero. This was a very important invention because it made it easier to write big numbers and to calculate. Calculating machines One of the first calculating machines was an abacus. （D）Abacuses are so fast and accurate that people still use them today. On the abacus in the picture, the beads on the wires represent ones, tens, hundreds and thousands, starting from the bottom wire. The picture on the right shows a modern electronic calculator. It can add, subtract, multiply and divide. It can also calculate percentages and square roots. The picture shows a computer. Computers are very powerful calculating machines. (E)In a flash a computer can do a calculation that you could not do in your whole lifetime. （H）_,Some people call the brain a living computer. Is a human brain a more powerful calculator than a computer? The following story may give an answer. Shakuntala Devi is a lady from India with an amazing brain. She can calculate like lightning. In America, Shakuntala and a very powerful computer were given this problem to (F) find an answer to. Shakuntalas brain （G）用50秒找到了答案. The computer took a minute. However, before the computer could begin calculating, someone had to program it with instructions ,and that took many hours. No one had to program Shakuntala! Use your own living computer to solve the problem above. If it is not powerful enough, you will find the answer on page 59. 1.在A处填入一个适当的单词:_ 2. 在B处填入一个适当的短语:_ 3. 将C 处改写成The system of numbers that nearly everyone uses today _ _ _ of the numbers from 1 to 9 and 0. 4.将D 处句子改写为： Abacuses are fast and accurate_ _ people _ use them today. 5.将E处翻译成汉语：_ 6.根据F的释义写一个单词：_ 7.将G 翻译成英语：_ 8.将H处的小标题写上：_ 9.From the article, can you guess “it isnt a machine, and its alive.” What does it refer to? A_ _ 10.Why is the invention of “0” important?,own,In the same way,is,made up,enough for,to,一闪念,solve,took fifty seconds to find the answer,Brain against computer,human,brain,Because it made it easier to write big numbers and to calculate,语法专练 (A) 请将方框中各类数字的不同英语表达填写在下面的表格里。,seventy-two percent,thirty-five Celsius,eleven,twelfth,thirty six point one six,four-fifths,nineteen eighty-seven,two seven four five eight double one six,December the ninth; the ninth of December,six fifty-five;five to seven,No.232bus,Room 345,(B) 请将加、减、乘、除的不同表达用英语填写在下面的表格里。,6 plus 3 is 9.,Add 3 and 6,and youll get 9.,6 minus 3 is 3.,Subtract 3 from 6, and youll get 3.,3 multiplied by 6 is 18.,Multiply 3 by 6,and youll get 18