热点试题

[ 数学 ] 已知椭圆的右焦点为,右准线为，点，线段交于点，若,则=（ ）a．             

已知椭圆的右焦点为,右准线为，点，线段交于点，若,则=（　　） a．                b. 2                   C.                 D. 3

2016-05-17 | 0

[ 数学 ] 细心观察图形，认真分析各式，然后解答问题                  ……     

细心观察图形，认真分析各式，然后解答问题                      ……         ……   (1)请用含有（是正整数）的等式表示上述变化规律． (2)推算出OA10的长．  (3)求出的值．

2016-05-17 | 0

[ 数学 ] 为了加强公民的节水意识，合理利用水资源，各地采用价格调控等手段来达到节约用水的目的．某城市

为了加强公民的节水意识，合理利用水资源，各地采用价格调控等手段来达到节约用水的目的．某城市规定如下用水收费标准：每户每月的用水不超过6m3时，水费按每立方米0.6元收费；超过6m3时，不超过的部分每立方米仍按0.6元收费，超过的部分每立方米按1元收费．设某户每月用水量为xm3，应缴水费为y元． （1）请写出用水不超过6m3和超过6m3时，y与x之间的函数关系式； （2）若该户居民5月份的水费为9.6元，则该户居民5月份的用水量为多少？

2016-05-18 | 0

[ 数学 ] 已知抛物线y=x2+（m-1）x-的顶点横坐标是2，则m的值是（    ）。

已知抛物线y=x2+（m-1）x-的顶点横坐标是2，则m的值是（    ）。

2016-05-19 | 0

[ 数学 ] 已知3x=4y，则=（    ）。

已知3x=4y，则=（    ）。

2016-05-20 | 0

[ 数学 ] 直接写出得数．3×56=45×58=0×1213=59×310=12+34=340×8=1

直接写出得数． 3× 5 6 = 4 5 × 5 8 = 0× 12 13 = 5 9 × 3 10 = 1 2 + 3 4 = 3 40 ×8= 15 7 × 21 20 = 11 36 × 9 22 =

2016-05-21 | 0

[ 语文 ] 雨是快乐而沉静的。当它从天空中飘落，将自己悄无声息地融入大地；当它在天地间尽情地舞蹈，用

雨是快乐而沉静的。当它从天空中飘落，将自己悄无声息地融入大地；当它在天地间尽情地舞蹈，用自己优美的身姿给大自然描摹出动人的画面；当它及时来访，用自己的生命滋润万物干渴的灵魂，你那多情而敏感的心也许会时时被雨敲击，从而滋生出莫名的喜悦与感动。某班同学在“雨的诉说”的综合性学习中开展了以下活动，请你踊跃参加。 [活动一：揭开雨的秘密] 　　雨与我们的生活息息相关，它滋养我们的身体，滋润我们的生命，成为我们生活不可或缺的组成部分。雨也蕴藏着许多小秘密，某小组同学开展了“揭开雨的秘密”的知识竞答赛，请你参与该小组的活动，回答下列问题。 （1）雨是怎样形成的？ _____________________________________ （2）我国降水最多的地方是哪里？ _____________________________________ [活动二：描摹雨的美景] 　　雨是美丽而妩媚的。瞧，它扯起丝丝银线描绘着大地的画，编织着春天的梦。下面是某同学搜集的两幅雨景图片，请认真欣赏，然后自选一幅用简洁优美的语言进行描述。 _____________________________________ [活动三：说说雨的功过] 　　任何事物都有其两面性，利与弊总是密切关联。自然界的雨也是如此，它有时温柔多情，有时则狂暴肆虐；有时文静如女孩，有时剽悍如野马。有了雨我们的世界才变得瑰丽多彩，有了雨我们的生活才变得滋润甘甜。某班同学针对雨的利与弊展开辩论，你赞成哪一方观点？请写出理由。 正方观点：雨的利大于害。 理由：_____________________________________ 反方观点：雨的害大于利。 理由：_____________________________________ [活动四：吟诵雨的韵味] 　　雨自古以来就倍受诗人的青睐，诗人常以自己敏感的心灵去感受雨，触摸雨，赞美雨，从而留下了许多优美的诗篇，请搜集有关雨的诗并用心吟诵。（不少于两首） “雨”诗一：_____________________________________ “雨”诗二：_____________________________________ [活动五：解读雨的精神] 　　平凡的雨却蕴涵着一种伟大，无生命的雨却蕴涵着深邃的内质与精神。请谈谈你从雨的身上读出了哪些可贵的品质？ _____________________________________

2016-05-27 | 0

[ 英语 ] 选词填空，将其序号填在横线上。 A. in   B. heavy   C. good  

选词填空，将其序号填在横线上。

A. in   B. heavy   C. good   D. too many   E. an 1. One, two, three…… Sorry, _______________. 2. My schoolbag is _______________. 3. Have a _______________ dream. 4. What's _______________ it? 5. I have _______________ English book.

2016-05-28 | 0

[ 英语 ] 阅读理解。       The following are the world-renew

阅读理解。

The following are the world-renewed attractions in London, so don't miss them while touring there.      Shakespeare's Globe      Shakespeare's Globe, which officially opened in 1997, is a reconstruction of the Globe Theatre, built in 1599, and brings Shakespeare's world to life. As a visitor to the exhibition,you'll discover how shows were produced in the theatres during Shakespeare's time. The guide-storytellers take you on a fascinating half-hour tour.      Price: Adult ￡9.00;      Child(5-15) ￡6.50;      Student ￡7.50;      Under 5 FREE.      The Tower of London       The tower, nearly 100 feet high, with walls 15 feet thick, was built in the early 1080s. King Henry Ⅲ made this tower his home. King Edward V and his younger brother were murdered inside by their uncle. Queen Elizabeth I was shut up in the tower for two months by her half sister Mary who felt that her throne (王位)was being threatened (威胁). In 1603, part of the tower became a museum.      Price: Adult ￡16.50;      Child (5-15) ￡9.50;      Under 5 FREE;      Student ￡13.50;      Family (two adults with three children) ￡46.00.      Banqueting (宴会)House      Banqueting House is the remains of Whitehall Palace which was built in 1529 and was home to the English kings. It was destroyed by fire. Famous for its architecture and painting, the building is also known for being the scene of Charles I's execution(处决).      Price: Adult ￡4.50;      Child ￡2.25;      Student (with ID) and senior citizen (60+) ￡3.00;      Under 5 FREE.      Tower Bridge Exhibition      Tower Bridge has stood over the River Thames in London since 1894 and is one of the finest, most recognizable bridges in the world. At the Tower Bridge Exhibition you can enjoy breath-taking views from the high-level walkways and learn about the history of the bridge and how it was built. You can then visit the Victorian engine rooms, home to the original steam engines that used to power the bridge.       Price: Adult￡6.00;      Child (5-15) ￡3.00;      Under 5 FREE; Senior citizen(60+) ￡4.50;      Student￡4.50.

1. Which of the following places has the longest history?

A. Whitehall Palace. B. The Globe Theatre. C. The Tower of London. D. Tower Bridge.

2. If two parents with their 4-year-old son visit Tower Bridge, they should pay _____.

A. ￡12 B. ￡15 C. ￡9 D. 16

3. Queen Elizabeth I was shut up in the tower for two months by Mary mainly because _____.

A. Mary didn't like her B. she tried to steal Mary's treasure C. Mary feared she would become the Queen D. she intended to murder Mary

4. How many places used as a king's home are mentioned in this passage?

A. One. B. Two. C. Three. D. Four.

2016-05-29 | 0

[ 物理 ] 由不同物质组成的大小不同的甲、乙两个物体，体积之比为V甲∶V乙=2∶1，质量之比为m甲∶m

由不同物质组成的大小不同的甲、乙两个物体，体积之比为V甲∶V乙=2∶1，质量之比为m甲∶m乙=1∶3，则甲、乙两个物体的密度之比为_______；若将甲的质量切去一半，乙的体积切去三分之一，那么甲、乙两个物体的密度之比为_______。

2016-05-30 | 0