1. 2012年上海徐汇区初三英语一模首字母填空 答案解析
保证抄准确!
86. children 孩子
87. money 钱
88. own
on one's own 独自
89. unusual 不寻常的
90. blowing 吹
91. promise 诺言
92. miss 想念
2. 徐汇区初三英语一模卷2016作文
Last sunday. I and my father, mother, grandparents, brother went to hutiaoxia
by bus. In the morning we came down the mountain. I saw wooded mountains, wild flowers bloom. We climb up the hill along the mountain path. Come halfway up the mountain, I feel a little tired,it began to rain,My West Lake silk umbrella missed,. Dad said to me,“chenlu, don’t do anything halfway.”at last,So I insisted reached the top, the top of the scenery so beautiful.We were flying kites, I was thirsty, my mother bought me a bottle of water, .finally we went home.finally,Since then, I've kept the umbrella。 was very happy
3. 徐汇区初三一模英语作文,求修改语法。谢
Everyone has the best thing or person they know. The best thing I know is the piano. Years ago, I learned how to play the piano. I always spent several hours a day thinking of how to play it well for years. At first, I didn’t like it (was not keen on it替代), and even hated it. In my mind, it was (too)boring (to be addicted to it ). With the increase of age, I can play it well (去well为 fluently in confidence). It not only brings me beautiful music, but also lets me know (去know变expirence) ‘success belongs to the persevering’. 括号里改得更好看点...如果字数不够可以加个总结句.望采纳
4. (2011徐汇区一模)如图,在正方形ABCD中,E为BC中点,DF=3FC,连接AE、AF、EF,那么下列结果错误的是(
已知在正方形ABCD中,E为BC中点,DF=3FC,得:
AB=BC=DC=AD,BE=CE=
AB=
BC=
DC,DC=4CF,
∴CF=
BE=
CE,即BE=CE=2CF.
在△ABE和△EFC中
=
,
=
=
=
∴△ABE与△EFC相似,回
∴∠AEB=∠EFC,
∴∠AEB+FEC=90°,答
∴△ABE与△AEF相似都是直角三角形
∴EF
2=CF
2+CE
2=CF
2+(2CF)
2=5CF
2BE
2=CE
2=4CF
2∴
=
=
∴
=
5. 2012年徐汇区初三数学一模17题,18题怎么做要具体过程
17.将抛物线y=x²-4x+4沿y轴向下平移后,所得抛物线与x轴交于点A、B,顶点为,如果△ABC是等腰直角三角形,那么顶点C的坐标是 设抛物线y=x²-4x+4沿y轴向下平移b个单位,抛物线的解析式为y=(x-2)²-b,此时点C的坐标为(2,-b), 如图所示: 令y=0,则(x-2)²-b=0, ∴A(-√b+2,0),B(√b+2,0), 过点C作CE⊥x轴于点E,则E(2,0), ∵△ABC是等腰直角三角形, ∴CE=BE=b, ∴√b+2-2=b, ∴b=1或b=0, ∴C点坐标为(2,-1). 故答案为(2,-1).
6. 上海中考,闵行区学籍,徐汇区户籍,一模考闵行排名在前15%左右,请问应该在哪个区报考更好
应该是在徐汇比较好,孩子的成绩相对来说还不错,徐汇的好学校多,选择更多一些。
7. (2012徐汇区一模)如图所示是真空中两个带等量异种电荷的点电荷A、B周围的电场分布情况(电场线方向未
A、等量异种电荷的中垂线上的电场强度的方向都是水平指向负电荷一侧的,所以O、M、N三点版的电场强权度方向相同,所以A错误; B、等量异种电荷连线的中垂线上的两点,而等量异种电荷连线的中垂线是一条等势线,所以O、M、N三点的电势相同,在一个等势面上,所以B正确; C、等量异种电荷的中点的场强最大,从中点沿着中垂线向两边逐渐减小,并且是对称的,所以EO>EM=EN,所以C错误; D、把电荷从M点静止释放,电荷受到的电场力是在水平方向的,电荷将向左或向右运动,不会沿MON做直线运动,所以D错误; 故选:B.
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