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物理教案 时间:2020-05-18

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井冈山中学初二年级期末考试物理试卷
篇一:井冈山中学is平台登录

井冈山中学初二年级期末考试

物理试卷

学校___________班级____________姓名____________

一、填空题(共21空,每空1分,共21分)

1、光在真空中的速度m/s,太阳发出的光,要经过大约8min才能到达地球,请你估算太阳到地球的距离约为________km。

2、水的密度是3 ,它表示 。 3、很多人喜欢听宋祖英唱的民歌,只要听到广播播放她的歌声就能知道这是宋祖英唱的,他们是根据声音的__ __来分辨的,人能听到广播的声音是由于扬声器的 而发声,通过空气传到人的耳朵。

4、温泉的开发是人们利用地热的一种形式。冬天,温泉水面的上方笼罩着一层白雾,这是水蒸气遇冷_______形成的小水滴;雪花飘落到池水中不见踪影,这是雪花________成水融入温泉水中。(填物态变化名称)

5、把一滴水滴在平铺的透明塑料纸上,透过水滴看塑料纸上的字。看到的是被______了的________像(选填“虚”或“实”)。

6、用质量相等的O℃的水和O℃的冰来冷却物体, 的冷却效果较好。因为它在 过程中要 热量。

7、小明和母亲一块到商店买服装,他在平面镜前0.4m处试穿衣服,则在镜中的像离他_________m,当他逐渐远离平面镜时,他在镜中的像的高度将__________(选填:“变小”、“不变”或“变大”)。 8、900cm3的水结成冰,它的密度________,它的体积比原来增加了________cm3。(ρ冰=0.9g/cm3)

9、质量是21.6 g的蜡块体积是24 cm3,蜡块的密度是 ㎏/ m3,将这蜡块切掉一半,剩下半块蜡的密度是______(选填:“变小”、“不变”或“变大”)。

10、图1所示是八架“歼10”战斗机在“空警2000”预警机的引领下,拉出绚丽彩带飞过天安门上空的情景。“歼10”战斗机相对于“空警2000”预警机来说,是________的。飞机的外壳一般图1

要选用高强度,低__________的铝合金材料来制造,以减轻质量。

二、选择题(11~14题为单选,每小题3分,15、16题是不定项选择,每小题4分,共20分)

11、下列估测最接近实际情况的是( )

A.一瓶500ml矿泉水的质量约为1 kg B.冬天教室内的气温约为35℃ C.一支普通牙刷的长度大约是15cm D.做一遍眼保健操需要15min 12、图2所示的四种现象中,属于光的反射形成的是( )

广场上的激光束 阳光穿过三棱镜 小桥在水中的“倒影” 水中的筷子弯折

A B 图

2 C D

13、二胡是我国劳动人民发明的一种弦乐器,演奏前,演员经常要调节弦的松紧程度,其目的是调节弦在发声时的( )

A.响度 B.音调 C.音色

D.振幅 14、如图3所示的四幅示意图中,表示近视眼成像和近视眼矫正后成像情况的分别是(

) 甲 乙 丙 丁 图

3

A.乙和丙

B.乙和丁 C.甲和丙

D.甲和丁 15、下列有关图4所示的情景,表述正确的是( ) 天坛回音壁 自行车尾灯 液化石油气罐 验钞机 A B 图4

C D A.天坛的回音壁是利用声音的反射,回声和原声混在一起,使声音加强

B.传统的自行车尾灯是将照射来的光反射回去,达到安全警示的作用 C.石油气主要是利用降低气体温度的方法,液化后被储存在钢瓶内 D.验钞机能够发出红外线,使钞票上的荧光物质发出荧光

16、图5是利用每秒闪光10次的照相装置拍摄到的同一个小球从左向右运动的频

闪照片。关于小球各段路程上的平均速度,下列说法正确的是( ) A.小球在AB两点间运动的平均速度最大

B.小球在BC两点间运动的平均速度最大

A B C D E C.小球在CD两点间运动的平均速度最大 D.小球在DE两点间运动的平均速度最大 图5 三、简答与计算题(4分+8分+6分+6分+6分=30分)

17、如图6所示,将盛有水的试管放进盛有水的烧杯里,用酒精灯加热烧杯, 当烧杯里的水沸腾后仍继续加热,试管里的水能沸腾吗? 为什么?

6

18、阅读下面的科技短文,在空格处填入相应的物态变化的名称。

人工增(降)雨

“人工增(降)雨”是指运用现代新科技控制气象动态的技术,其原理是

通过播撒催化剂,影响云的微物理过程,使本来不会产生的降水得以产生,已经产生的降水强度增大。

人工增雨需要根据不同云层的物理特性,选择合适的时机,可用飞机在高空作业,向云中播撒干冰(固态二氧化碳)等催化剂,干冰迅速地________吸热,致使高空云层附近的气温骤降,云层中的水蒸气直接________成小冰粒,小冰粒不断变大,这些小冰粒下落过程中________成了水滴,水滴降落就形成了雨。另外云层中的部分水蒸气遇冷________成小水滴,小水滴相互碰撞并不断变大,降落到地面,形成降水。人工降雨也可以在地面作业,用高射炮或火箭弹将含有碘化银(冷云催化剂)的炮弹打入含有大量积雨云的4000m至5000m高空,碘化银在高空扩

散为肉眼都难以分辨的小颗粒(只有头发直径的百分之一到千分之一),成为云中水滴的凝聚核,水滴在其周围迅速凝聚达到一定体积后落向地面,形成降水。 人们常说“天有不测风云”,然而随着科学技术的不断发展,这种观点已成为过去,

几千年来人类“行云布雨”的愿望,如今已成为现实。

19、井冈山发往吉安的长途客车途径碧溪、禾市。井冈山到碧溪路程10km,0.2小时到达,碧溪到禾市30km路程0.5小时到达,在禾市站停5分钟后,用48分钟走完了剩余60km路程抵达吉安。(1)碧溪到吉安平均速度?(2)全程平均速度?

20、我们平时喝的瓶装矿泉水空瓶50g,装水后总重550g,则:(1)净矿泉水多少克?( 2)矿泉水瓶的容积至少要多少ml? (3)若用该矿泉水瓶来装家庭常用的酱油,装满后至少能装多少g的酱油? (ρ矿泉水=1.0×103kg/m3 ,ρ酱油=1.1×103kg/m3)

四、实验探究题(8分+5分+8分+8分=29分) 22、(1)用刻度尺测量物体A的长度,由图7可知,物体A的长度是________cm。 (2)图8所示温度计的示数为________°C。

(3)在图9

AO。

图7 图10

(4)如图10

所示,将钢尺的一端紧压在桌面上,拨动伸出桌面的一端会听到声音,这说明声音是由于物体________产生的;显著改变钢尺伸出桌面的长度,用与上次相同的力度拨动钢尺伸出桌面的一端,能听出声音的________发生了变化。 23、在探究甲和乙两种物质熔化规律时,小琴记录的实验数据如下表所示,请根据表格中的实验数据解答下列问题:

(1)在甲和乙这两种物质中,属于晶体的是(填“甲”或“乙”) (2)该晶体的熔点为 ℃,熔化用了 分钟。

(3)该晶体在76℃时,它处于

态(选填“固”、“液”或固液共存) (4)固体在熔化过程中需要 热量(选填“放出”或“吸收”

24、小文用蜡烛、凸透镜和光屏做“探究凸透镜成像规律”的实验,如图 11所示。

A B C D

图12

(1)为使烛焰的像成在光屏的中央,应将光屏向________调整(选填“上”

或“下”

)。

(2)实验过程中,当蜡烛距凸透镜20cm时,移动光屏至某一位置,在光屏上得到一个等大清晰的像,则该凸透镜的焦距是 ________cm。

(3)接着把蜡烛再向左移动5cm,此时如果将光屏向________ (选填“左”或“右”)移到某一位置,就能在屏上得到如图12中________图所示烛焰的像。 25、小永同学为了测量永春老醋的密度,进行以下实验:如下图13所示 (a)测液体密度的实验原理 。 (b)实验步骤:

(1)把天平放在 ,将游码移至零刻度处,然后调节 ,使天平横梁平衡;

(2)接下来进行以下3项操作:井冈山中学is平台登录。

A.用天平测量烧杯和剩余老醋的总质量m1;

B.将待测老醋倒入烧杯中,用天平测出烧杯和老醋的总质量m2; C.将烧杯中老醋的一部分倒入量筒,测出这部分老醋的体积V; 以上操作的正确顺序是:_______________(填字母代号)。

图13

(3)由图甲、乙可知,量筒中老醋的质量为 g,体积为 ㎝3,老醋的密度是 g/㎝3。

江西省井冈山市新城区井冈山中学2015-2016学年高二英语下学期第一次月考试题
篇二:井冈山中学is平台登录

井冈山中学高二下学期第一次月考英语试卷

第一部分 听力(共两节,满分30分)

第一节(共5小题,每小题1.5分,满分7.5分)

听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项, 并标在试卷的相应位置, 听完每段对话后, 你都有10秒钟的时间来回答有关小题和下一小题, 每段对话仅读一遍。

1. What do we know about the woman?

A. She received A on all six exams.

B. She did very well on five exams.

C. She missed one exam.

2. What does the man imply? A. The woman should have seen the dentist by now.

B. The woman’s toothache will go away by itself. C. He went to see the dentist a week ago.

3. How does the woman keep in touch with old friends?

A. By phone. B. By letter. C. Through the Internet.

4. Why is the woman upset?

A. The traffic was bad.

B. The man forgot their date.

C. The man’s late for their date.

5. What are the two speakers talking about?

A. Online information safety. B. Uses of a computer. C. Value of the Internet.

第二节(共15小题, 每小题1.5分, 满分22.5分)

听下面5段对话。每段对话后有几个小题, 从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置, 听每段对话前,你将有时间阅读各个小题, 每小题5秒钟; 听完后, 各小题将给出5秒钟的作答时间, 每段对话读两遍。

听下面一段对话, 回答第6和第7两个小题。

6. What job will the man be offered?

A. A teaching assistant. B. A shop assistant. C. A clinic assistant.

7. What does the woman suggest the man doing first? A.Practicing Chinese. B. Having a drink. C. Meeting some children.

听下面一段对话, 回答第8和第9两个小题。

8. What did the man go to London for?

A. Holiday. B. Business. C. Studying.

9. Why was the factory shut down?

A. It polluted the air. B. It made loud noise. C. It polluted a river.

听下面一段对话, 回答第10至第12三个小题。

10. What is Bengi?

A. A tiger. B. A bear. C. A lion.

11. Why do people attack Bengi?

A. They want him to be their pet.

B. They want his fur and bones.

C. They want to eat him.

12. What will the two speakers do then?

A. Take care of Bengi. B. Fight to save Bengi. C. Write to the government. 听下面一段对话, 回答第13至第16四个小题。

13. Where does this conversation probably take place?

A. In a travel agency. B. At the airport. C. On the phone.

14. What is the destination of the tour?

A. Greece. B. Yugoslavia. C. Belgium

15. How many countries does the tour go through?

A. Three. B. Four. C. Five.

16. How long will the whole trip last?

A. Five days. B. Four weeks. C. Five weeks.

听下面一段对话, 回答第17至第20三个小题。

17. What is the relationship between the two speakers?

A. A bank clerk and a customer.

B. Husband and wife.

C. Colleagues.

18. What is the man going to do at the beginning of conversation?

A. Open a checking account. B. Cash a bill. C. Check his account.

19. What can we learn from the conversation?

A. No one enjoys standing in line.

B. The man has a checking account.

C. Carrying around all that cash is convenient.

20. Where are the two speakers going next? A. To the post office. B. To the company. C. Home.

第二部分 阅读理解(共20小题; 每小题2分,满分40分)

第一节 (共15小题; 每小题2分,满分30分)

阅读下列短文,从每题所给的四个选项(A\B\C\和D)中, 选出最佳选项。

A

Valencia is in the east part of Spain. It has a port on the sea,two miles away on the coast. It is the capital of a province that is also named Valencia. The city is a market centre for what is produced by the land around the city. Most of the city’s money is made from farming. It is also a busy business city,with ships, railways,clothes and machine factories. Valencia has an old part with white buildings,coloured roofs,and narrow streets. The modern part has long,wide streets and new buildings. Valencia is well known for its parks and gardens. It has many old churches and museums. The university in the centre of the city was built in the 13th century. The city of Valencia has been known since the 2nd century. In the 8th century it was the capital of Spain. There is also an important city in Venezuela(委内瑞拉) named Valencia.

21.From the text,how many places have the name Valencia?

A. one B. two C. three D. four

22. When was Valencia the most important city in Spain?

A.2nd century B.8th century C.13th century D. 20the century

23. The main income of the city of Valencia is from its ______.

A. markets B. business C. factories D. farming

B

Every day is a gift, and if you look forward to spending each day with happiness, wake up every morning with a positive attitude and enjoy a beautiful day!

Set up a daily plan for yourself and ensure that you reserve enough time for your homework. Also, don’t forget to spare some time for play! Stop being lazy and start participating in your life instead of just watching it pass by. Try to do something fun and constructive every day. Read a book, write something interesting in your diary, try a new hobby, spend time with your friends, or just watch your favorite show on television, and you will see how every moment of your day unfolds. You’ll achieve better results, and ultimately greater success.

However, every day will not be the way you want it to be. Some days will be good, while some will be bad. You won’t be always happy and smiling. You may come across many challenges. Don’t forget to remind yourself to slow down and take care of yourself. In today’s busy lifestyle, it is necessary to relax to bring balance and joy back into your life. So, take charge of your life. Enjoy and appreciate the small things around you. Do a good deed and make others happy. Sometimes, doing something as simple as having a cup of tea with an old friend or a family member, listening to a cheerful song, or just writing down all the things that make you happy could indeed turn your day around!

Review and analyze your day before you retire at night. Reward yourself for completing the set goals and prepare the stage for the next day. This will impact your sleep and overall happiness levels. Plan for the next day, take a good rest, and wake up fresh the next morning! If you will you are doing the same things every day, step out of your comfort zone and set aside some time to do things you have never done before. Stretch your limits. Not only will it make a boring day exciting but it will also build your confidence.

24. Who are the intended readers of the passage?

A. Teachers B. Students C. Workers D. People in general

25. Why is “Read a book” mentioned in the second paragraph? A. To show readers how to make them happy.

B. To tell readers to learn hard for their future.

C. To supply readers with ways of killing time.

D. To offer readers suggestions on hobbies.

26. What can we infer from the third paragraph? A. Every day is beautiful and worth-remembering.

B. Your future is up to yourself and your friends.

C. A good start is definitely good for the future.

D. You should make a difference in your day.

27. What would be the best title for the passage?

A. How to make the most of your day

B. How to lead a happy and satisfying life

C. Act now without delay to change your life

D. Spare time to focus on daily responsibilities

C

Autumn means different things to different people. “It all depends on your personality.” said British naturalist Richard Mabey. “Personality shapes your view of the season,” he said. “You may see it as a fading-away, a packing-up(结束), or as a time of packing in another sense --- the excited gathering of resources before a long journey.” If this is true, perhaps it tells us a little about, for instance, Thomas Hood, the 19th Century English poet. About November, he wrote:

No warmth, no cheerfulness, no healthful ease

No shade, no shine, no butterflies, no bees

November!

On the other hand, another English poet John Keats, already sensing he was seriously ill, was inspired by a late September day to pen one of the most famous poems in the English language, To Autumn. He wrote to a friend afterwards that there was something comforting and healing about it.

According to Richard Mabey, Keats has the biological evidence on his side. Autumn is not a time of slowing down, but a time of new beginnings and great movements of creatures. For example, just at the moment that Keats's “gathering swallows” (in To Autumn) are departing for Africa, millions of creatures are fleeing from the frozen north like Iceland, Greenland

江西省井冈山市新城区井冈山中学2015-2016学年高二数学下学期第三次月考试题
篇三:井冈山中学is平台登录

井冈山中学高二下学期第三次月考数学(理科)试卷

一、选择题:(60分)

1.i

为虚数单位,若i)zi,则|z|( )

A.1 B

.2 2. 命题“存在x0R,2x00”的否定是( )

A.不存在x0R, 2x0>0 B.存在x0R, 2x00 C.对任意的xR, 2x0 D.对任意的xR, 2x>0

3.设随机变量~N(1,2),若P(2)0.8,则P(01)的值为 ( )

A.0.2 B.0.3 C.0.4 D.0.6 4.3.两个实习生每人加工一个零件,加工为一等品的概率分别为

23

和,两个零件是否加工为一34

1 6

等品相互独立,则这两个零件恰好有一个一等品的概率为( ) A.

15 B. 212

C.

1

4

2

D.

5、.下列命题为真命题的是( )

A.若ac>bc,则a>b C

.若

2井冈山中学is平台登录。

B.若a>b,则a>b

,则a<b

2

,则a<b D

.若

5

1

井冈山中学is平台登录。

6.(x+2) 21的展开式的常数项是( )井冈山中学is平台登录。

x

A.-3 B.-2 C.2 D.3

25

7.设2xa0a1xa2xa5x,那么

5

a0a2a4

的值为( )

a1a3

A.

12261244

B. C. D.1 12160241

8.在极坐标系中与圆4sin相切的一条直线的方程为( ). A.cos2 B.sin2 C.4sin(

) D.4sin()

33

9.某公司新招聘进8名员工,现将其平均分给下属的甲、乙两个部门,其中两名英语翻译人员不能分给同一个部门,三名电脑编程人员也不能分给同一个部门,则不同的分配种数是( ) A.18 B.24 C.36 D.72

x2y2

10.已知抛物线 y2px(p0)的焦点F恰好是双曲线 221(a0,b0)的一个焦点,

ab

2

两条曲线的交点的连线过点F,则双曲线的离心率为( )

A.

B.

1D

.132

11.11.若a>0,b>0,且函数f(x)=4x-ax-2bx+2在x=1处有极值,则ab的最大值等于( )A.2 B.3 C.6

D.9

12.A、B两篮球队进行比赛,规定若一队胜4场则此队获胜且比赛结束(七局四胜制),A、B两队在每场比赛中获胜的概率均为

1

,为比赛需要的场数,则E( ) 2

73939373A. B. C. D.

16161818

1

二、填空题:(20分) 13.

计算定积分

2xdx= .

14.某公司为确定明年投入某产品的广告支出,对近5年的广告支出m与销售额t(单位:百万元)进行了初步统计,得到下列表格中的数据:

经测算,年广告支出m与年销售额t满足线性回归方程t6.

5m

17.5,则p的值为。 15.若(x2

1921

则函数f(x)sinx与直线xa、xa)(aR)的展开式中x9项的系数为,

ax2

及x轴围成的封闭图形的面积为

16.已知x为实数,则y .

三、解答题:(70分) 17.(12分)观察下列各不等式: 111113

, 222115, 22323111722, 2

234411119, 223242525

(1)由上述不等式,归纳出一个与正整数n(n≥2)有关的一般性结论; (2)用数学归纳法证明你得到的结论.

18.(12分)甲、乙、丙三人参加了一家公司的招聘面试,面试合格者可正式签约,甲表示只要面试合格就签约.乙、丙则约定:两人面试都合格就一同签约,否则两人都不签约.设每人面试合格

的概率都是,且面试是否合格互不影响.求: (Ⅰ)至少有1人面试合格的概率;

(Ⅱ)签约人数ξ的分布列和数学期望.

19.(12分)如图,在底面为直角梯形的四棱锥P-ABCD中,AD∥BC,∠ABC=90°,PA⊥平面ABCD,

PA=3,AD=2,AB=23,BC=6.

(1)求证:BD⊥平面PAC;

(2)求平面PBD与平面BDA的夹角.

20.(12分)已知椭圆C:

+

=1(a>b>0)的离心率是

,且点P(1,

)求椭圆的方程; (2)若过点D(0,2)的直线l与椭圆C交于不同的两点E,F△OEF面积的取值范围(O为坐标原点).

21.(12分)设函数f(x)alnx,g(x)

12

x. 2

(I)若a0,求h(x)f(x)g(x)的单调区间;

(II)若a1,对任意的x1x20,不等式m[g(x1)g(x2)]x1f(x1)x2f(x2)恒成立.求

m(mZ,m1)的值;

(III)记g(x)为g(x)的导函数,若不等式f(x)2g(x)(a3)xg(x)在x[1,e]上有解,求实数a的取值范围.

请考生在第22,23题中任选一题做答,如果多做,则按所做的第一题计分, 22.(本小题满分10分)选修4--4:坐标系与参数方程

以直角坐标系的原点O为极点,x轴的正半轴为极轴,且两个坐标系取相等的长度单位.已知直线l的参数方程为

x1tcos2

(t为参数,0),曲线C的极坐标方程为sin4cos.

ytsin

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