『壹』 2013年金山区数学一模卷（最近刚考完）
(1) 抛物线过A, B, 可表达为y = m(x + 3)(x - 1)
x = 0, y = -3m, D(0, -3m)
(2)抛物线对称轴 x = (-3+ 1)/2 = -1
x = -1, y = -4m
P(-1, -4m)
C(-1, 0), 圆半径r = [1 - (-3)]/2 = 2
PD的斜率: (-3m+ 4m)/(0 + 1) = m, 方程: y = mx - 3m, mx - y - 3m = 0
C与PD的距离d = |-m - 0 - 3m|/√(m² + 1) = 4m/√(m² + 1) = 2
相切, d = r, m = √3/3 (舍去m = -√3/3 < 0)
不用点与直线的距离也行。先求出的斜率；然后可以求出过的垂线的斜率；然后通过二者的方程得到交点，以及三边的长。用勾股定理即可。
(3)
m = 1, P(-1, -4), D(0, -3), B(-3, 0)
BP² = 20
PD² = 2
BD² = 18
BP² = PD² + BD²
BPD为直角三角形, ∠BDP为直角
tan∠BPD = BD/PD = √18/√2 = 3
『贰』 2012金山区英语初三一模答案
如果是下面的三套的答案的话请追50分并采纳后发= =最近老有人声称会追分结果收了我的邮件后关闭回答，我被弄怕了，抱歉。另，邮箱是[email protected]吗？有没有vip什么的？ 【青浦】 1.（2分）③相对性，并非绝对“一刀切”④不对称的偏正平衡。 【崇明】 1、科技的滥用所造成的重大社会危机；以财富积累为唯一目的的经济发展模式；贪婪、惰性和懦弱，以及各种各样的挥霍。（3分）【金山】 1． （2分）乔布斯和他的苹果都达到了追求的最高点。 wJ俄
『叁』 求2011年金山区高三英语一模试卷和答案
金山
25-29 BDAAB 30-34 DBCAC 35-39 BADAD 40 B 41-45 DJAGE 46-49 BFIC
50-64 DABDA BBCDB ABCDC 65-75 DACB ACB CBDB 76-80 DAEFB
81. feelings, will, motivation, interests and habits // the desire to learn, will-power and self-confidence
82. the genetic factors, state of poor nutrition or laziness
83. Students lose self-confidence.
84. Alts (Parents and teachers ) should be teenagers’ best psychologist and fully understand them.
1.He adopts / (has) adopted my advice / suggestion(s) / proposal(s).
2.I appreciated what she had done for me.或 I appreciate what she had done for me.
3.Despite difficulties, we will try hard to complete / achieve / accomplish / fulfill the task.
或 Despite the fact that there are difficulties, we will try to complete / achieve / accomplish / fulfill the task.
4.To meet the needs of the 2010 Shanghai Expo, a lot of modern hotels and exhibition halls have been set up in Shanghai.
『肆』 2013金山区高三英语一模几道语法题 谢谢！！！
25,We Chinese people 和the people of all countries 分别是一个整体，两者之间用between.
34,这题考词语辨析，as far as 是就。。。。。。而言；至于，直到，内远到
though是尽管容，虽然，不过，然而； unless是除非，如果不，除、、、、、之外
as long as 意为只要，和、、、、一样长。
35，这里的to have been infected 是不定式表结果，不是介词。
『伍』 求2015金山区高三英语一模听力答案，我已经做好了，对一下答案！！
噢 顺便提一下，我现在学的ABC天卞英语的助教才和我提过 若想征服英语很简单的~必须具有好的研习情境及熟练口语对象 重点就是老师教学经验，口语纯正非常重要，保持每天练习口语，1 on 1家教式教学才可以有最.好.的进步效率！学习后同样要重听课程录音音频，帮助加强记忆！实在是真的无口语交谈的人，那么就去旺旺或大耳朵拿到课余教材学习，多说多问一下子语感会提高起来 学习成效是必定最佳的..金山- BDAAB 0- DBCAC - BADAD 0 B 1- DJAGE - BFIC0- DABDA BBCDB ABCDC - DACB ACB CBDB -0 DAEFB1. feelings, will, motivation, interests and habits the desire to learn, will-power and self-confidence. the genetic factors, state of poor nutrition or laziness. Students lose self-confidence.. Alts (Parents and teachers ) should be teenagers’ best psychologist and fully understand them.1.He adopts (has) adopted my advice suggestion(s) proposal(s). .I appreciated what she had done for me.或 I appreciate what she had done for me..Despite difficulties, we will try hard to complete aceve accomplish fulfill the task. 或 Despite the fact that there are difficulties, we will try to complete aceve accomplish fulfill the task. .To meet the needs of the 010 Shanghai Expo, a lot of modern hotels and exbition halls have been set up in Shanghai.