在等差数列{an}中,a1=3,前n项和为Sn,等比数列{bn}各项均为正数,b

题型:解答题

问题:

在等差数列{an}中,a1=3,前n项和为Sn,等比数列{bn}各项均为正数,b1=1,且b2+S2=12,{bn}的公比q=
S2
b2

(1)求数列{an}通项an
(2)记 Tn=
1
S1
+
1
S2
+
1
S3
+…+
1
Sn
,试比较Tn
5
9
的大小.
考点:等差数列的通项公式等差数列的前n项和数列求和的其他方法(倒序相加,错位相减,裂项相加等)
题型:解答题

人们利用声纳系统可以测海洋的深度,利用激光测距仪可以测量某个天体与地球之间的距离.

(1)这两种测距离的方法共同点是从声纳仪(或激光测距仪)发出声(或光)信号,声(或光)信号遇到目标会 ______回来,测出声(或光)信号往返所需的 ______,就可以计算出信号源与目标之间的距离.

(2)利用声纳系统能否测出地球到月球之间的距离?答:______.原因是:______

(3)从地球发出的激光脉冲束照射到月球的反射器,经2.56s返回地球,请计算一下地球到月球的距离是多少?

题型:解答题

如果要拍摄一部表现香港近代史的影片,其中在1841 年应该出现的内容是  [ ]

A .英国割占香港岛

B .郑成功收复香港岛

C .英国军队占领香港岛

D .中英两国在香港岛签订了《南京条约》

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When most people turn 21, they spend too much time partying and having fun. But when Adele turned 21, she did something completely different.

After going through a tough breakup(分手), the British singer turned her pain into glory and recorded one of the most moving albums of the year.

The album, 21, which was released in January, has already hit the charts in 14 countries, according to the Billboard magazine.

It also noted that Adele made history as the first artist since the Beatles to have two top five singles and two top five albums in the charts at the same time (Adele’s first album, 19, was released in 2008. Each album is named for her age when she wrote it).

Now, after touring around the world for almost a year, the DVD of her live concert, released on November 29, is Adele’s latest work.

Having topped the pre-order list of Amazon. com for over a month already, this one seems set to stay on top for a while.

Born in north London, Adele sang her way up honestly:  In 2006, she was signed by England’s XL Recordings on the strength of (基于)a three-song demo(样本唱片) a friend of hers had posted on MySpace;within two years she had won the BRIT Awards ‘Critics’ Choice prize and been tipped by the BBC as the “Sound of 2008”.

In 2009 she got the best new artist Grammy Award, and went on a world tour in support of the album 19 with a sold-out show in Los Angeles.

According to Adele herself, much of the inspiration of her music comes from one single breakup.

That’s probably what has made the singer’s success-that emotional certitude(确信), according to Dickins.

“The key to great singers is believing every single word they sing, ” he said. “And I think you believe every word that comes out of Adele’s mouth. You can feel her life force through her voice. ”

小题1:When she wrote album 19, she is at the age of______.

A.21

B.18

C.20

D.19小题2:How many awards did Adele get?

A.One.

B.Two.

C.Three.

D.Four.小题3:The underlined word “released” can be best replaced by ______.

A.recorded

B.came out

C.sold

D.written小题4: In Adele’s opinion, where does her inspiration of music mainly come from?

A.Emotional certitude.

B.One single breakup.

C.A three-song demo.

D.A world tour.

题型:解答题

1.对联是汉语特有的文学样式。撰写对联要按照它的特征进行,如字数相等、词性相对、结构相应、意义相关,等。请根据特征要求,为下面的上联续写下联。

例:草堂留后世诗圣著千秋

上联:学业宜从勤奋始

下联:______________

2.汶川地震灾难中,三岁的郎铮获救的一瞬间,他缓缓地举起稚嫩的小手,向施救的解放军叔叔敬礼,表达自己的感恩之情。“谢谢”几乎成了所有获救者被救那一刻的共同语。感恩涌动在每一个获救者的心间。假如你就是一个获救者,请你写一段话表达你的感恩之情。要有适当的描写。

要求:(1)用第一人称写;(2)80字左右。

___________________________________

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牛顿看到成熟的苹果从树上掉下来,研究它的原因,发现了万有引力的秘密,开创了物理学的一个新时代。瓦特从水开时蒸汽顶起壶盖的现象中受到启发,发明了蒸汽机。马克思从人们每天都在进行的亿万次的商品交换中发现了现代资本主义发生、发展和灭亡的规律,为无产阶级社会主义革命指明了广阔的道路。他们都能______。补写总结句,使语段的意思完整明确的一项是( )。

A.于无声处听惊雷,展现出敏锐的洞察能力和卓越的分析能力
B.明察秋毫、举重若轻,洞悉社会发展变化的深刻道理
C.从平常的事情中,发现不平常的奥秘,推动了科学的发展
D.不断钻研、上下求索,终于取得非凡的成就

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