20xx秋上海教育版英语四年级上册期末试卷内容摘要:
ke C. do…like ( ) 9. Has the pig got big ears? ________________. A. No, it hasn’t. B. Yes, it has C. Yes, it is. ( ) 10. What___ your mother do? She’s a dentist. A. does B. do C. are ( ) 11. It is an elephant, ____ ears are big. A. it’s B. its C. Its ( ) 12. This is _______ dog. A. Ben and Kitty’s B. Lily’s and Jane’s C. Wendy’s and Eddie ( ) 13. The ducks are afraid. _____ chase the ducks. A. Aren’t B. Can’t C. Don’t ( ) ’m hungry. Here ____some crisps. ( ) ___Ben like? He ___ robots. …like …likes …likes ( ) are green. ( ) 17. ____ are the sweets? Twelve Yuan. much many ( ) 18. My father ___a driver. He __a car. …has …is …is 三、 Look and write.(看图,填空完成句子 ) (in, on, under) (共计 8分) 1. The boy and the girl a。20xx秋上海教育版英语四年级上册期末试卷
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( 5 ) 3 4 25 20yy 合并同类项,得 x系数化为 1,得 4x32 m合并同类项,得 45 y合并同类项,得 5y系数化为 1,得 23m系数化为 1,得 中小学课件 • 试一试 : • 洗衣厂今年计划生产洗衣机 25500台 ,其中 Ⅰ 型 ,Ⅱ 型 ,Ⅲ型三种洗衣机的数量之比为 1:2:14,这三种洗衣机计划各生产多少台 ? 2 1 4
3y = 3 729=2 187. 答:这三个数是 243, 729, 2 187. 1∕ 3y +y3y= 1 701. 中小学课件 解法三 : 设第三个数为 Z ,则第二个数为 1/3 Z, 第一个数为 1/ 3 ( 1/ 3 Z) = 1/ 9 Z 根据这三个数的和是 1 701,得 合并,得 7∕9 Z = 1 701. 系数化为 1,得 Z = 1701247。 (7 ∕ 9) 即
. 合并同类项 系数化为 1 上面解方程中 ” 合并同类项 ” 起了什么作用 ? 使方程变得简单 ,更接近于 x=a的形式 中小学课件 x+2x+4x=140 7x=140 x=20 答:前年我校购买了 20台计算机 . 解:设前年我校构买了 x台计算机 , 根据题意得 : 中小学课件 解方程 : 解 : 合并同类项 ,得 (1) x+2x=14 32x=14 72系数化为 1,得 x=4:
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. cook C. doctor ( ) 44. How do you feel? _________ happy. A. He’s B. We’re C. They’re ( ) 45. There ____a bottle of water and two packets of biscuits on the table. A. are B. have C. is ( ) 46.