• 理科数学 济南市2016年高三高三上学期期末试卷
多选题 本大题共1小题,每小题8分,共8分。在每小题给出的4个选项中,有多项符合题目要求,全对得8分,选对但不全得4分,有选错的得0分。
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2.已知氘核的比结合能是1.09 MeV,氚核的比结合能是2.78 MeV,氦核的比结合能是7.03 MeV。在某次核反应中,1个氘核和1个氚核结合生成1个氮核,则下列说法中正确的是       。(填正确选 项标号。选对1个得3分,选对2个得4分,选对3个得6分。每选错1个扣3分,最低得分为0分)

A这是一个裂变反应

B核反应方程式为

C核反应过程中释放的核能是17.6 MeV

D目前核电站都采用上述核反应发电

E该核反应会有质量亏损

分值: 8分 查看题目解析 >
填空题 本大题共1小题,每小题5分,共5分。把答案填写在题中横线上。
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3.中,,则      

分值: 5分 查看题目解析 >
材料选择题 本大题共2小题,每小题4分,共8分。阅读材料,完成下列小题。
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马尔代夫是以旅游业为支柱产业的著名岛屿。2014年12月4日,马累海水淡化厂设备摧毁导致该岛淡水供应中断。应马尔代夫政府请求,中国政府及时向其提供了饮用水等物资和资金援助。图3是马尔代夫部分区域示意图。读图3,回答下题12、13题。

12.中国一架满载饮水用的飞机紧急从广州飞往马累,若北京时间12:00出发,经4小时到达马累,机长身高为1.8m,到达时其在机场地面的身高影长接近于(tan55°≈1.43, tan65°≈2.14)

A0.6m

B1.2m

C1.8m

D2.4m

13.甲、乙两地自然景观迥异的主要影响因素是

A太阳辐射

B距海远近

C洋流性质

D海拔高度

分值: 5分 查看题目解析 >
简答题(综合题) 本大题共10分。简答应写出文字说明、证明过程或演算步骤。
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某实验小组用如图甲所示装置测量木板对木块的摩擦力所做的功。实验时,木块在重物牵引下向右运动,重物落地后,木块继续向右做匀减速运动。图乙是重物落地后打点计时器打出的纸带,纸带上的小黑点是计数点,相邻的两计数点之间还有4个点(图中未标出),计数点间的距离如图所示。已知打点计时器所用交流电的频率为50 Hz。

51.根据纸带提供的数据可计算出打点计时器在打下A点、B点时木块的速度vA、vB,其中vA=________m/s。(结果保留两位有效数字)

52.17世纪,英国天文学家哈雷跟踪过一颗彗星,他算出这颗彗星轨道的半长轴约等于地球公转半径的18倍,并预言这颗彗星将每隔一定的时间飞临地球,后来哈雷的预言得到证实,该彗星被命名为哈雷彗星。哈雷彗星围绕太阳公转的轨道是一个非常扁的椭圆,如图所示。从公元前240年起,哈雷彗星每次回归,中国均有记录。它最近一次回归的时间是1986年。从公元前240年至今,我国关于哈雷彗星回归记录的次数,最合理的是

A24次

B30次

C124次

D319次

53.求粒子进入磁场时的速度大小;

分值: 4分 查看题目解析 >
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5.如图,在四棱柱中,底面是等腰梯形,是线段的中点,求证:

分值: 6分 查看题目解析 >
阅读理解 本大题共2小题,每小题2.5分,共5分。阅读短文,完成下列小题。
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Important Lessons From Nature

Nature is our mother, who teaches us how to keep a balance in life. It occurs to me that the lessons nature teaches us are beyond my description. The key ①inspirations are as follows.

Peaceful Coexistence

Nature provides every creature with a chance to exist, no matter how big or small it may be. However, the existence of one creature depends on the existence of the other. The tiger eats the giraffe; without the giraffe, the tiger wouldn't survive. Similarly, without tigers, the over ②abundance of giraffes would cause them to starve to death. ③Understanding that our existence and well-being alone depends on the existence and well-being of others would help us create a more tolerant society currently and live in harmony with each other.

Creativity

Has it ever struck you that under the warm sunshine, we are enjoying a variety of leaves and fruits on different plants in the woods, the brightly colored hills covered with flowers, and unique patterns on animals in the rainforests? With so much beauty around, who could deny that nature is the most creative artist out there! Take a minute to admire this beautiful artist's creation around you, be inspired, and create something that will in turn inspire others.

Unselfishness

On seeing a potential enemy around, birds or squirrels give out an alarm call to their fellow birds or squirrels of the potential danger around the corner. They put themselves in danger in exchange for others’ safety. So heroic, yet so ordinary! In nature, many animals, like the salmon, usually die after they spawn, but this doesn't stop them. One life extinguished for the benefit of others is a small price to pay. In efforts to be a little selfless, we will definitely enjoy a better world.

What we can learn from nature is limitless. ④Learn to respect, admire her and attach her ways to your life, and you will be awarded by her offerings.

61. Which is an example of enjoying the generous offerings from nature?

ATreating nature as your own mother.

BDepending on the existence of others.

CInspiring yourself as well as others.

DPaying a small price for a different life.

62. The article may probably be one in _____.

Aa magazine

Ba book review

Cadvertisement

Da science report

分值: 5分 查看题目解析 >
单选题 本大题共1小题,每小题6分,共6分。在每小题给出的4个选项中,有且只有一项是符合题目要求。
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1.下列关于初生演替中草本阶段和灌木阶段的叙述,正确的是

A草本阶段与灌木阶段群落的丰富度相同

B草本阶段比灌木阶段的群落空间结构复杂

C草本阶段比灌木阶段的群落自我调节能力强

D草本阶段为灌木阶段的群落形成创造了适宜环境

分值: 6分 查看题目解析 >
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