黑龙江省哈尔滨市阿城区龙涤中学2018-2019学年高二上学期期中(学业水平)考试英语试题 Word版缺答案
黑龙江省哈尔滨市阿城区龙涤中学2018_2019学年高二化学上学期期中(学业水平)考试试题
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黑龙江省哈尔滨市阿城区龙涤中学2018-2019学年高二化学上学期期中(学业水平)考试试题(无答案)1. 本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
答卷前,考生务必将自己的姓名、班级、考号填写在答题卡上。
2. 回答第Ⅰ卷、第Ⅱ卷时,将答案写在答题卡上,写在本试卷上无效。
可能用到的相对原子质量:H 1 N 14 O 16 Na 23 Al 27 Fe 56 Mg 24Zn 65 S 32 C 12 Cl 35.5 Cu 64 Ag 108第Ⅰ卷(选择题共50分)一、选择题(本题包括10小题,每小题2分,共20分,每小题只有一个正确答案)1.对于反应4Fe(OH)2(s)+2H2O(l)+O2(g)═4Fe(OH)3(s)△H=﹣444.3kJ/mol,且熵减小,在常温常压下该反应能自发进行,对反应的方向起决定作用的是() A.焓变B.温度 C.压强 D.熵变2. 下列说法正确的是() A.含有OH-的溶液一定呈碱性 B. pH为3的盐酸的c(H+)是pH为1的盐酸的100倍 C.在NaOH溶液中没有H+ D.pH相同的氨水与氢氧化钠溶液,分别与同浓度同体积的盐酸完全中和时,消耗氨水体积小于消耗氢氧化钠溶液的体积3.可使某弱酸HX的电离程度增大,溶液中的c(H+)减小的措施是()A.通入HCl B.加NaX C.加热 D.加镁粉4.将等物质的量的A、B混合于2L的恒容密闭容器中,发生如下的反应:3A(g)+B(g)+2D(g),经5min后,测得D的量为1mol,C的平均反应速率为0.1mol/(L﹒min)。
则xCx的值为( ) A. 1 B. 2 C. 3 D. 45 pH相同的氨水和NaOH两种溶液中,它们的( )A. OH-的物质的量相同 B. H+物质的量相同C. OH-的物质的量浓度不同 D. H+的物质的量浓度相同6.在容积可变的容器中发生反应N2+3H2 2NH3,当缩小容器容积时,化学反应速率增大,其主要原因是()A.分子运动速率加快,使反应物分子间的碰撞机会增多B.反应物分子的能量增加,活化分子百分数增大,有效碰撞次数增多C.活化分子百分数未变,但单位体积内的活化分子数增加,有效碰撞次数增多D.分子间距离减小,使所有的活化分子间的碰撞都成为有效碰撞7.有一支50 mL的酸式滴定管,其中盛有溶液,液面恰好在10 mL刻线处,把管中的溶液全部排出盛接在量筒中,量筒内溶液体积是( )A.大于40 mL B.小于40 mL C.等于40 mL D.10 mL8下列有关实验误差分析中,错误的是()A.中和滴定实验中,盛装待测液的锥形瓶没有润洗,对实验结果无影响B.用容量瓶配制一定物质的量浓度的溶液,定容时俯视刻度线,所配溶液浓度偏低C.用润湿的pH试纸测某溶液的pH,测定结果不一定有误差D.测定中和热的实验中,将碱液缓慢倒入酸溶液中,所测中和热值偏低9.有一化学平衡m A(g)+n B(g) p C(g)+q D(g),如图表示的是A的转化率与压强、温度的关系。
黑龙江省哈尔滨市阿城区龙涤中学高二上学期期中(学业水平)考试英语试卷(无答案)
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龙涤中学学业水平考试英语试题出题人:审题人:阅读理解(共两节,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A、B、C和D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
ASan Francisco Fire Engine ToursSan Francisco Winery TourRunning: February 1st through April 30thThis delicious tour goes through the city on its way to Treasure Island where we will stop at the famous Winery SF. Here you can enjoy 4 pours of some of the best wine San Francisco has to offer.(Included in tickets price)Departing from the Cannery: Tell time upon request.Duration(时长): 2 hoursPrice: $90Back to the Fifties TourRunning: August 16th through August 31stThis tour transports you back in time to one of San Francisco’s most fantastic periods, the 1950s! Enjoy fun history as we take you through San Francisco for a free taste of ice cream.Departing form the Cannery: 5:00 pm and 7:00 pmDuration: 2 hoursPrice: $90Spooky Halloween TourRunning: October 10th through October 31stJoin us for a ride through the historical Presidio district .Authentic fire gear (服装) is provided for your warmth as our entertainers take you to some of the most thrilling parts of San Francisco.Departing from the Cannery: 6:30 pm and 8:30 pmDuration: 1 hour and 30 minutesPrice: Available upon requestHoliday Lights TourRunning: December 6th through December 23rdThis attractive tour takes you to some of San Francis’s most cheerful holiday scenes. Authentic fire gear is provided for your warmth as you get into the holiday spirit.Departing from the Cannery: 7:00 pm and 9:00 pmDuration: I hour and 30 minutesAdvance reservations required.1.Which of the tours is available in March?A.San Francisco Winery Tour.B.Back to the Fifties Tour.C.Spooky Hallowen Tour.D.Holiday Lights Tour.2.What can tourists do on Back to the Fifties Tours?A.Go to Treasure Island.B.Enjoy the holiday scenes.C.Have free ice cream.D.Visit the Presidio district.3.What are tourists required to do to go on Holiday Lights Tour?A.Take some drinks.B.Set off early in the morning.C.Wear warm clothes.D.Make reservations in advance.BTwo years ago my grandmother was going to turn 75. My family discussed what was the best way to celebrate. Should we throw her a party? Should we take her on a trip? We remembered that she had touched so many people' s lives, and there were so many people for her to consider. Then someone got the idea that we should include everyone in the celebration.We secretly sent out letters to the people in Grandmother's address book and asked them to send a letter with a memory that they had shared with her. People sent us letters with poems, stories and pictures. The deep feeling that was shared through the response (回应) surprised us. We compiled (编辑) these letters into a memory book and amazed (使惊奇) her with it on the morning of her birthday.The unusual thing about my grandmother's friends was not the number that she had, but the connection they shared. In many ways this book of friendship was the greatest achievement of my grandmother’s life.I believe that developing true friendships is one of the most important things that anyone can do in one's lifetime. It is not a matter of the number of friends one has, but the quality of the bonds. If one has had at least one true friendship before dying, then one can say one has lived a successful life. I have made many friends and I believe I have begun to develop the same types of friendships my grandmother kept up over her lifetime. I only hope that I will-be as successful as she has been.4.How did the author's family celebrate Grandmother' s birthday?A.By taking her on a trip across the country.B.By giving her a memory book of friendship.C.By inviting all her friends to her birthday party.D.By asking all her friends to send her cards.5.When receiving her birthday gift, the author' s' grandmother probably felt ________.A.disappointed and lonelyB.sorry and sadC.surprised and pleasedD.nervous and excited6.The underlined word " bonds " in the last paragraph probably means _________.A.relationshipsB.worksC.successesD.celebrations7.According to the passage, the author probably agrees that ______.A.the more friends you have, the betterB.friends are more important than familyC.understanding leads to greater successD.true friendship is very important to us1CStephen Hawking, the brilliant British theoretical physicist who published wildly popular books exploring the mysteries of the universe, has died, according to a family spokesman. He was 76.Considered by m any to be the world’s greatest living scientist, Hawking was also a cosmologist, astronomer, mathematician and author of numerous books including the landmark“A Brief History of Time,” which has sold more than 10 million copies.With fellow physicist R oger Penrose, Hawking combined Einstein’s theory of relativity with quantum theory(量子理论) to suggest that space and time would begin with the Big Bang and end in black holes. He also discovered that black holes were not completely black but emit(释放) radiation and would likely eventually evaporate(蒸发) and disappear. “It will be difficult enough to avoid disasters on planet Earth in the next 100 years, let alone next thousand, or million. The human race shouldn’t have all its eggs in one basket or on one plant. Let’s hope we can avoid dropping the basket until we have spread the load.”Hawking suffered from ALS (amyotrophic latcral sclerosis), a disease which is usually fatal within a few years. He was diagnosed in 1963, when he was 21, and doctors initially gave him only a few years to live. The disease left Hawking wheelchair-bound and paralyzed. He was able to move only a few fingers on one hand and was completely dependent on others or on technology for everything—bathing, dressing, eating, even speech. “I have been lucky that my condition has progressed more slowly than is often the case. But it shows that one need not lose hope.” Dramatically, he even guest-starred in the “Star Trek”, “The Simpsons” and the 2014movie “The theory of Everything”.Hawk ing leaves behind three children and three grandchildren. “We are deeply saddened that our beloved father passed away today,” Hawking’s children, Lucy, Robert and Tim, said in a statement. “He was a great scientist and an extraordinary man whose work and l egacy will live on for many years. His courage and persistence with his brilliance and humor inspired people across the world. “We will miss him forever.”8.From the passage, we can learn that _______.A.Hawking was diagnosed with the fatal disease since he was born.B.Hawking was once the main character in the movie and TV series.C.Hawking just published one book titled “A Brief History of Time”D.Hawking had to rely on other people and technology to do everything in life.9.Which of the following is NOT believed by Stephen Hawking?A.The space and time would end in black holes.B.Black holes are not exactly black in color.C.The disasters can be avoided in the next thousand or million years.D.Black holes can give off radiation and will disappear in the end.10.What does the underlined sentence mean?A.The humans should explore other planets to live.B.The humans should stay together to fight the disasters.C.The earth will be destroyed if humans continue to live hereD.No other planets can replace the earth as the living place.11.What would be the best title of the passage?A.A Star Just Went Out in the CosmosB.The Achievements of Stephen HawkingC.Stephen Hawking’s Suffering of the DiseaseD.The Predictions of the Great ManDAs Internet users become more dependent on the Internet to store information, are people remembering less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remembered the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called "transactive memory (交互记忆)"According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a laterdate. This doesn't mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.12.The passage begins with two questions to ______.A.introduce the main topicB.show the author's altitudeC.describe how to use the InternetD.explain how to store information13.What can we learn about the first experiment?A.The Sparrow's team typed the information into a computer.B.The two groups remembered the information equally well.C.The first group did not try to remember the information.D.The second group did not understand the information.14.In transactive memory, people ______.A.keep the information in mindB.change the quantity of informationanize information like a computerD.remember how to find the information15.What is the effect of the Internet according to Sparrow's research?A.We are using memory differently.B.We are becoming more intelligent.C.We have poorer memories than before.D.We need a better way to access information.2第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
2019-2020学年黑龙江省哈尔滨市阿城区龙涤中学校高二上学期期中考试化学试题(解析版)
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黑龙江省哈尔滨市阿城区龙涤中学校2019-2020学年高二上学期期中考试试题一、选择题(每题只有一个正确选项,每题3分,共60分)1.下列说法不正确的是()A. 需要加热才能发生的化学反应不一定是吸热反应B. 放热反应在常温下一定很容易发生C. 在一定条件下,某一化学反应是吸热反应还是放热反应,由生成物与反应物的焓值差即焓变(ΔH)决定D. 化学反应除了生成新的物质外,还伴随着能量的变化『答案』B『解析』【详解】A. 需要加热才能发生的化学反应不一定是吸热反应,例如物质燃烧等,A正确;B. 放热反应在常温下不一定很容易发生,例如碳燃烧等,B错误;C. 在一定条件下,某一化学反应是吸热反应还是放热反应,由生成物与反应物的焓值差即焓变(ΔH)决定,反应物总能量高于生成物总能量是放热反应,反之是吸热反应,C正确;D. 化学反应除了生成新的物质外,还伴随着能量的变化,这也是化学变化的特征之一,D 正确。
『答案』选B。
2. 下列做法有利于金属防护的是()A. 钢铁零件表面进行烤蓝处理B. 将钢铁制成的闸门与直流电源正极相连C. 菜刀切菜后不洗净就放回刀架D. 埋在地下的钢管与铜块相连『答案』A『解析』试题分析:A. 一般钢铁容易生锈,如果将钢铁零件的表面进行烤蓝处理,就能大大增强抗蚀能力,延长使用寿命,A项正确;B.钢铁制成的闸门与直流电源的正极相连,闸门成为电解池的阳极,能加速腐蚀,B项错误;C.菜刀切菜后不洗净,容易发生吸氧腐蚀,C项错误;D.铁比铜活泼,当埋在地下的钢管与铜块相连时,钢管成为原电池的负极,加快了腐蚀,应该与锌块相连,D项错误;『答案』选A。
3.已知反应A+B==C+D 的能量变化如图所示,下列说法正确的是( )A. 该反应为放热反应B. 该反应为吸热反应C. 反应物的总能量高于生成物的总能量 D. 该反应只有在加热条件下才能进行『答案』B 『解析』【详解】根据图分析,反应物的总能量低于生成物的总能量,反应为吸热反应,吸热反应不一定需要加热才能发生,有的吸热反应在常温下能发生。
黑龙江哈尔滨阿城龙涤中学校高二化学上册期中试卷
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黑龙江省哈尔滨市阿城区龙涤中学校2019-2020学年高二化学上学期期中试题(无答案)一、选择题(每题只有一个正确选项,每题3分,共60分)1、下列说法不正确的是()A.需要加热才能发生的化学反应不一定是吸热反应B.放热反应在常温下一定很容易发生C.在一定条件下,某一化学反应是吸热反应还是放热反应,由生成物与反应物的焓值差即焓变(ΔH)决定D.化学反应除了生成新的物质外,还伴随着能量的变化2、下列做法有利于金属防护的是( )A.钢铁零件表面进行烤蓝处理B.将钢铁制成的闸门与直流电源正极相连C.菜刀切菜后不洗净就放回刀架D.埋在地下的钢管与铜块相连3、已知反应A+B C+D的能量变化如图所示,下列说法正确的是()A.该反应为放热反应 B.该反应为吸热反应C.反应物的总能量高于生成物的总能量D.该反应只有在加热条件下才能进行4、用铁片与稀硫酸反应制取氢气时,下列措施不能使氢气生成速率加大的是( ) A.加热B.不用稀硫酸,改用浓硫酸C.滴加少量CuSO4溶液D.不用铁片,改用铁粉5、已知反应:①101kPa 时,2C(s)+O 2(g)===2CO(g) ΔH =-221kJ·mol -1 ②稀溶液中,H +(aq)+OH -(aq)===H 2O(l) ΔH =-57.3kJ·mol -1③H 2(g)+1/2O 2(g)===H 2O(g) ΔH =-241.8kJ·mol -1④H 2O(g)===H 2O(l) ΔH =-44.0kJ·mol -1下列结论正确的是( )A .碳的燃烧热大于110.5kJ·mol -1B .浓硫酸与稀NaOH 溶液反应生成1mol 水,放出57.3kJ 热量C .氢气的燃烧热为241.8kJ·mol -1D .2H 2(g)+O 2(g)===2H 2O(l)的反应热为ΔH =571.6kJ·mol -16、已知:4NH 3+5O 2===4NO +6H 2O ,若反应速率分别用v (NH 3)、v (O 2)、v (NO)、v (H 2O)[单位为mol/(L·min)]表示,则正确的关系是( )A.45v (NH 3)=v (O 2)B.56v (O 2)=v (H 2O)C.23v (NH 3)=v (H 2O)D.45v (O 2)=v (NO) 7、对于反应CO(g)+H 2O(g)CO 2(g)+H 2(g) ΔH <0,在其他条件不变的情况下( )A .加入催化剂,改变了反应的途径,反应的ΔH 也随之改变B .增大压强,正逆反应的化学反应速率都减小C .升高温度, 正反应化学反应速率增大, 逆反应化学反应速率减小D .对该反应来说,无论反应进行到何时,混合气体的总物质的量不变8、反应A(g)+3B(g)===2C(g)+2D(g)在四种不同情况下的反应速率分别为 ①v (A)=0.45 mol·L -1·s -1 ②v (B)=0.6 mol·L -1·s -1③v (C)=0.4 mol·L -1·s -1 ④v (D)=0.45 mol·L -1·s -1。
黑龙江省哈尔滨市阿城区龙涤中学校2019_2020学年高二化学上学期期中试题
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黑龙江省哈尔滨市阿城区龙涤中学校2019-2020学年高二化学上学期期中试题(无答案)一、选择题(每题只有一个正确选项,每题3分,共60分)1、下列说法不正确的是()A.需要加热才能发生的化学反应不一定是吸热反应B.放热反应在常温下一定很容易发生C.在一定条件下,某一化学反应是吸热反应还是放热反应,由生成物与反应物的焓值差即焓变(ΔH)决定D.化学反应除了生成新的物质外,还伴随着能量的变化2、下列做法有利于金属防护的是( )A.钢铁零件表面进行烤蓝处理B.将钢铁制成的闸门与直流电源正极相连C.菜刀切菜后不洗净就放回刀架D.埋在地下的钢管与铜块相连3、已知反应A+B C+D的能量变化如图所示,下列说法正确的是()A.该反应为放热反应 B.该反应为吸热反应C.反应物的总能量高于生成物的总能量D.该反应只有在加热条件下才能进行4、用铁片与稀硫酸反应制取氢气时,下列措施不能使氢气生成速率加大的是( ) A.加热B.不用稀硫酸,改用浓硫酸C.滴加少量CuSO4溶液D.不用铁片,改用铁粉5、已知反应:①101kPa 时,2C(s)+O 2(g)===2CO(g) ΔH =-221kJ ·mol -1②稀溶液中,H +(aq)+OH -(aq)===H 2O(l) ΔH =-57.3kJ ·mol -1③H 2(g)+1/2O 2(g)===H 2O(g) ΔH =-241.8kJ ·mol -1④H 2O(g)===H 2O(l) ΔH =-44.0kJ ·mol -1下列结论正确的是( )A .碳的燃烧热大于110.5kJ ·mol -1B .浓硫酸与稀NaOH 溶液反应生成1mol 水,放出57.3kJ 热量C .氢气的燃烧热为241.8kJ ·mol -1D .2H 2(g)+O 2(g)===2H 2O(l)的反应热为ΔH =571.6kJ ·mol -16、已知:4NH 3+5O 2===4NO +6H 2O ,若反应速率分别用v (NH 3)、v (O 2)、v (NO)、v (H 2O)[单位为mol/(L ·min)]表示,则正确的关系是( ) A.45v (NH 3)=v (O 2) B.56v (O 2)=v (H 2O)C.23v (NH 3)=v (H 2O) D.45v (O 2)=v (NO) 7、对于反应CO(g)+H 2O(g)CO 2(g)+H 2(g) ΔH <0,在其他条件不变的情况下( )A .加入催化剂,改变了反应的途径,反应的ΔH 也随之改变B .增大压强,正逆反应的化学反应速率都减小C .升高温度, 正反应化学反应速率增大, 逆反应化学反应速率减小D .对该反应来说,无论反应进行到何时,混合气体的总物质的量不变8、反应A(g)+3B(g)===2C(g)+2D(g)在四种不同情况下的反应速率分别为①v (A)=0.45 mol ·L -1·s -1 ②v (B)=0.6 mol ·L -1·s -1③v (C)=0.4 mol ·L -1·s -1 ④v (D)=0.45 mol ·L -1·s -1。
黑龙江省哈尔滨市阿城区龙涤中学校最新高二物理上学期期中试题
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黑龙江省哈尔滨市阿城区龙涤中学校2019—2020学年高二物理上学期期中试题考试用时:90分钟 分值:100 分 一、选择题(1—8单选 9-12多选,每题4分,共48分)1。
一充电后的平行板电容器保持两板间的正对面积、间距和电荷量不变,在两板间插入一电介质,其电容C 和两极板间的电势差U 的变化情况是( )A.C增大,U 减小 B.C 和U 均增大 C 。
C 减小,U增大 D 。
C和U 均减小2。
两个大小相同的金属小球A 、B 分别带有qA ︰qB =4︰1数值的电荷量,相距较远,相互间引力为F 。
现将另一个不带电的、与A 、B完全相同的金属小球C,先与A 接触,再与B 接触,然后离开,则A 、B 间的作用力变为 ( )A .F 81 B 。
F 161 C。
F 21 D.F 413.如图所示电路中,电流表A和电压表V 均可视为理想电表.闭合开关S 后,将滑动变阻器的滑片P 向左移动,下列判断正确的是( )A.电流表A 的示数变小,电压表V 的示数变大B.小灯泡L变亮C。
电容器C上的电荷量减少D。
电源的总功率变大4。
某电解池,如果在1s内共有5×1018个二价正离子和1.0×1019个一价负离子通过某截面,那么通过这个截面的电流是( )A.0A B。
0.8 A C.1。
6 A D。
3.2A5.图中的甲、乙两个电路,都是由一个灵敏电流计G和一个变阻器R组成,它们之中一个是测电压的电压表,另一个是测电流的电流表,那么以下结论中正确的是( )A。
甲表是电流表,R增大时量程增大B。
甲表是电流表,R增大时量程减小C.乙表是电压表,R增大时量程减小D.上述说法都不对6.如图所示,因线路故障,按通K时,灯L1和L2均不亮,用电压表测得Uab=0,Ubc=0,Ucd=4V.由此可知开路处为 ( )A。
灯L1 B.灯L2C。
变阻器 D.不能确定7.等量异种点电荷的连线和其中垂线如图所示,现将一个带负电的检验电荷先从图中a点沿直线移到b点,再从b点沿直线移到c点.则检验电荷在此全过程中( )A。
黑龙江省哈尔滨市阿城区龙涤中学校2019_2020学年高二数学上学期期中试题
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黑龙江省哈尔滨市阿城区龙涤中学校2019-2020学年高二数学上学期期中试题注意事项:1.答题前,考生必须将自己的姓名、准考号、班级和登录账号填写在答题纸和答题卡的指定位置.2.选择题每小题选出答案后,用2B 铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其他答案标号,在试题卷上作答无效.3.非选择题必须使用0.5毫米黑色字迹的签字笔书写,字迹工整,笔迹清楚,请按照题号顺序在各个题目的答题区域作答,超出答题区域书写的答案无效;在草稿纸、试题卷上答题无效.第Ⅰ卷(选择题,共60分)一、选择题(本题共12小题,每小题5分,共60分。
在每小题给出的四个选项中,只有一项是符合题目要求的)1、若命题“p q ∧”为假,且“p ⌝”为假,则( )A.q 假B.“q p ∨”为假C.q 真D.不能判断q 的真假2、如果椭圆22110034x y +=上一点P 到焦点1F 的距离为6,则点P 到另一个焦点2F 的距离为( )A.10B.6C.12D.143、已知直线y=x+b,b ∈[-2,3],则直线在y 轴上的截距大于1的概率为( )A. B. C. D.4、根据一组数据(24,25),(26,25),(26,26),(26,27),(28,27),用最小二乘法建立的回归直线方程为=kx+13,则k=( )A.2B.4C.D.5、阅读右图所示的程序框图,运行相应的程序,若8.0=p ,则输出的n 值为( )A. 3B. 4C. 5D. 66、如图所示是一样本的频率分布直方图,则由图形中的数据,可以估计众数与中位数分别是( )A.12.5 12.5B.12.5 13C.13 12.5D.13 137、已知某运动员每次投篮命中的概率都为40%。
现采用随机模拟的方法估计该运动员三次投篮恰有两次命中的概率:先由计算器算出0到9之间取整数值的随机数,用1,2,3,4表示命中,用5,6,,7,8,9,0表示不命中;再以每三个随机数为一组,代表三次投篮的结果。
黑龙江省哈尔滨市阿城区龙涤中学2018_2019学年高二物理上学期期中试卷(含解析)
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黑龙江省哈尔滨市阿城区龙涤中学2018-2019学年高二上学期期中(学业水平)考试物理试卷一、选择题1.下列关于电场强度的说法中,正确的是()A. 公式只适用于真空中点电荷产生的电场B. 由公式可知,电场中某点的电场强度E与试探电荷在电场中该点所受的电场力成正比C. 在公式中,是点电荷产生的电场在点电荷处的场强大小;是点电荷产生的电场在点电荷处的场强大小D. 由公式可知,在离点电荷非常靠近的地方(),电场强度可达无穷大【答案】C【解析】试题分析:是电场强度的定义式适用于一切电场,A错误;电场强度E表示电场本身的强度和方向,与试探电荷无关,不能说E与试探电荷在电场中该点所受的电场力成正比,B 错误;库仑定律公式公式中,是点电荷Q2产生的电场在点电荷Q1所在处的场强大小;是点电荷Q1产生的电场在点电荷Q2处的场强大小,C正确;D、当r→0时,电荷已不能看成点电荷,公式不再成立,D错误;故选C考点:电场强度。
【名师点睛】电场强度是描述电场的力的性质的物理量,要想知道电场中某点的电场强度,可以在该点放一试探电荷,由来描述该点的强弱,不同的试探电荷,受到的力不同,但是相同的,为了描述电场的这种性质,引入电场强度这个物理量,即为电场强度的定义式;而是点电荷所形成的电场的场强的决定式,是说点电荷所形成的电场的场强决定于场源电荷的电荷量和距点电荷的距离。
2.用控制变量法,可以研究影响平行板电容器电容的因素(如图所示).设若两极板正对面积为S,极板间的距离为d,静电计指针偏角为θ.实验中,极板所带电荷量不变,若( )A. 保持S不变,增大d,则θ变大B. 保持S不变,增大d,则θ变小C. 保持d不变,减小S,则θ变小D. 保持d不变,减小S,则θ不变【答案】A【解析】AB:保持S不变,增大d,电容器的电容减小,极板所带电荷量不变,据可得两板间电势差变大,静电计指针偏角θ变大。
故A项正确,B项错误。
CD:保持d不变,减小S,电容器的电容减小,极板所带电荷量不变,据可得两板间电势差变大,静电计指针偏角θ变大。
黑龙江省哈尔滨市阿城区龙涤中学校2019_2020学年高二语文上学期期中试题
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黑龙江省哈尔滨市阿城区龙涤中学校2019-2020学年高二语文上学期期中试题一.现代文阅读(36分)(一)论述类文本阅读(本题共3小题,9分)阅读下面的文字,完成1—3题。
网络文学是直面读者的文学,所写的内容与读者的生活紧密相关,优秀的网络文学作品接地气、树正气、有情趣,它往往能拨动读者的情感之弦,帮助读者树立正确的价值观,激发读者的内在潜能,激起读者追求幸福生活的勇气。
表面上看,那些玄幻、穿越、架空历史等类型的网络小说所构筑的想象世界似乎离现实生活很远,但它离读者的情感其实很近。
它通过奇遇、金手指、开挂等途径让主人公由“废柴”变成可以“逆天”的世间强者,在这个过程中主人公会经历各种磨难,但会凭借过人的智慧、坚强的毅力和顽强的意志闯过一道道关,其中还会有友情、爱情等方面的故事,涉及团队精神、家国情怀、人生境界等精神层面的问题。
这样的故事给读者的精神影响是积极正面的,它给读者以梦想,也强化了幸福都掌握在自己手中的道理,帮助那些渐渐长大的青少年读者逐渐获得独立意识并找到自我。
在那些直面现实的作品中,很多作者都现身说法,以自己为原型来写作,将自己的生活经验写进小说,让读者获得参与感,并从中获得生活的经验。
鲍鲸鲸的《失恋三十三天》、李可的《杜拉拉升职记》、曼陀罗天使的《七年之痒》等网络小说以切近现实生活的笔触,和读者一起面对生活难题,作者用生活智慧教会读者如何经营情感、事业、家庭,如何面对阶段性的人生困境,如何活得更精彩。
这些作品的理念是,小说是有用的,而不只是简单的消遣品,它们洞明世事、通晓世故人情,能帮助读者提升认识生活的能力。
文学对现实生活的干预,主要是通过读者的阅读来实现的,读的人越多,作品产生的影响才会越大。
网络文学在面对读者群时,是自觉分类的,根据读者的需求“量身定制”,类似玄幻、历史、穿越、悬疑、游戏、职场、言情等作品的分类标签,针对的是不同读者的口味,这种分类细化的做法类似文化超市里陈列的各类文化产品。
黑龙江省哈尔滨市阿城区龙涤中学高二历史上学期期中(学业水平)考试试题
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黑龙江省哈尔滨市阿城区龙涤中学2018-2019学年高二历史上学期期中(学业水平)考试试题一.单选题:(每小题2分,共50分 )1.下面两则材料是一位先秦思想家在评论两位政治人物时表达的意思。
这位思想家可归类( )D.墨家2. 据史书记载:关羽兵微将寡屡战强大的曹军而不克,于是改用水攻而淹曹七军,一战成名;盛名之下,关羽渐骄,最后败走麦城。
关羽的一生,暗合了先秦时期某思想家的观点。
这位思想家是( )A.老子B.孔子C.墨子D.韩非子3.某年春节联欢晚会上出现这样一副对联:“百善孝为先,常回家看看;千秋民作本,多俯首听听。
”与此下联思想吻合的是( )A.非攻,尚贤B.存天理,灭人欲C.罢黜百家,独尊儒术D.民贵君轻4.如下图《一团和气图》粗看似一笑面弥勒佛盘腿而坐,细看却是三人合一:左为一道冠老者,右为一方巾儒士,二人各执经卷一端,团膝相接,相对微笑;弥勒佛手搭两人肩上,借用道者与儒士的五官,合成一张正面像。
它体现了我国古代的一种社会思潮。
对这一思潮表述正确的是( )A.隋唐时期初露端倪彼此有影响B.推动了宋代新儒学体系的诞生C.“三教合归佛”为其核心内容D.成为中国古代传统文化的主流5.汉代董仲舒曾提出“屈君而伸天”的主张。
这表明他主张( )A.用天来限制皇权 B.用天来加强君权C.加强中央集权D.使儒学处于独尊6.《春秋决狱》中有一典型案例:父亲和别人因口角发生斗殴,对方用刀刺父亲,儿子拿棍子相救,结果误伤了父亲。
官府认为儿子犯了殴打父亲的重罪,要按律处死。
但董仲舒根据孔子的观点,认为儿子的动机不是打父亲,所以应免罪。
对材料解读错误的是( )A.孝治天下、儒家独尊 B.原心定罪、以礼入法C.德主刑辅、以人为本 D.纲常为主、刑法为辅7.李贽说:“商贾亦何可鄙之有?挟数万之资,经风涛之险,受辱于关吏,忍垢于市易,辛勤万状,所挟者重,所得者末。
”明代蒲州商人王文显训诫其子说:“夫商与士异术而同心,故善商者,处财货之场而修高明之行,是故虽利而不污。
黑龙江省哈尔滨市2018_2019学年高二数学上学期期中(学业水平)考试试题(无答案)
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黑龙江省哈尔滨市阿城区龙涤中学2018-2019 学年高二上学期期中(学业水平)考试数学试卷一、选择题 ( 每题 5 分, 共 12 小题 60 分)1、某企业在甲、乙、丙、丁四个地域分别有个、个、个、个销售点.企业为了检查产品销售的状况,需从这个销售点中抽取一个容量为的样本,记这项检查为①;在丙地域中有个特大型销售点,要从中抽取个检查其销售收入和售后服务等状况,记这项检查为②,则达成①、②这两项检查宜采纳的抽样方法挨次是()A. 分层抽样法、系统抽样法B. 分层抽样法、简单随机抽样法C. 系统抽样法、分层抽样法D. 简单随机抽样法、分层抽样法2、已知命题,则 ()A. C.B. D.3、某小组有名男生和名女生, 从中任选名同学去参加演讲竞赛. 事件“起码 1 名女生”与事件“全部是男生”()A. 是互斥事件,不是对峙事件B. 是对峙事件,不是互斥事件C. 既是互斥事件,也是对峙事件 D. 既不是互斥事件不是对峙事件4、假如数据的均匀数为,方差为,则的均匀数和方差分别为()A.,B.C. D.5、右图给出的是计算的值的一个程序框图,此中判断框内应填入的条件是()A. B. C. D.6、“”是“直线和直线平行”的()A. 充足而不用要条件B. 必需而不充足条件C.充要条件 D. 既不充足又不用要条件7、在空间中,以下命题正确的选项是()A. 平面内的一条直线垂直与平面内的无数条直线,则B. 若直线与平面内的一条直线平行,则C. 若平面,且,则过内一点与垂直的直线垂直于平面D.若直线与平面内的无数条直线都垂直,则不可以说必定有8、袋中共有个除了颜色外完整同样的球,此中有个红球、个白球和个黑球.从袋中任取两球,两球颜色为一白一黑的概率等于()A. B. C. D.9、已知命题:函数恒过点;命题:若函数为偶函数,则的图像对于直线对称,则以下命题为真命题的是().A. B. C. D.10、圆内有一内接正三角形,向圆内随机投一点,则该点落在内接正三角形内的概率是()A. B. C. D.11、若点和点分别为椭圆的中心和左焦点,点为椭圆上的随意一点,则的最大值为()A.2B.3C.6D.812、椭圆的两极点为,且左焦点为,是以角为直角的直角三角形,则椭圆的离心率为()A. B. C. D.二、填空题 ( 每题 5 分, 共 4 小题 20 分)13、将化成四进制数是__________.14、以下图的程序履行后输出的结果为__________.15、由命题“”是假命题,求得的取值范围是,则实数的值是 __________ .16、给定以下命题:①“”是“”的充足不用要条件;②;③④命题的否认.此中真命题的序号是__________.三、解答题 (第 17 题 10 分, 第 18 题-22 题 12 分,共 6 小题 70 分)17、向三个相邻的军械库投一枚炸弹, 炸中第一个军械库的概率为, 炸中第二个军械库的概率为, 炸中第三个军械库的概率为, 三个军械库中 , 只需炸中一个另两个也会发生爆炸 , 求军械库发生爆炸的概率.18、从某居民区随机抽取个家庭,获取第个家庭的月收入(单位:千元)与月积蓄(单位:千元)的数据资料,算得:,,,.( 1)求家庭的月积蓄对月收入的线性回归方程;(2)判断变量与之间是正有关仍是负有关;(3)若该居民区某家庭月收入为千元,展望该家庭的月积蓄.附:线性回归方程中,,,此中为样本平均值,线性回归方程也可写为.19、某校高二某班的一次数学测试成绩(满分为100 分)的茎叶图和频次散布直方图都遇到不一样程度的损坏,但可见部分以下,据此解答以下问题:( 1)求分数在的频次及全班人数;( 2)求分数在之间的频数,并计算频次散布直方图中间的矩形的高;( 3)若要从分数在之间的试卷中任取两份剖析学生失分状况,在抽取的试卷中,求起码有一份分数在之间的概率.20、设有关的一元二次方程.(1) 若是从四个数中任取的一个数,是从三个数中任取的一个数,求上述方程有实根的概率;(2) 若是从区间任取的一个数,是从区间任取的一个数,求上述方程有实根的概率.21、设命题:实数知足;命题:实数知足,( 1)若时,命题为真,同时命题为假,务实数的取值范围;( 2)若是的充足不用要条件,务实数的取值范围 .22、已知椭圆的右焦点,且经过点,直线.( 1)求椭圆的方程;( 2)若( 3)过点为椭圆上的动点,求点的直线与椭圆到直线的距离的最小值交于不一样的两点,若为坐标原点,求点的轨迹方程.。
黑龙江省哈尔滨市2018_2019学年高二物理上学期期中(学业水平)考试试题(无答案)
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黑龙江省哈尔滨市阿城区龙涤中学 2018-2019 学年高二物理上学期期中(学业水平)考试一试题(无答案)一、选择题。
(此题共 12 小题,每题4 分,共 48 分。
1---8题单项选择, 9----12 多项选择。
)1. 以下对于电场强度的说法中正确的选项是()A.公式 EF只合用于真空中点电荷产生的电场qB. 由公式 EF 可知 , 电场中某点的电场强度E 与尝试电荷 q 在电场中该点所受的电场力Fq成正比C. 在公式 FkQ 1Q 2中 , Q 2 产生的电场在点电荷 Q 1 处的场强盛小 ; 而 kQ 1 r 2k2 是点电荷 Q 2r 2r是点电荷 Q 1 产生的电场在点电荷 Q 2 处的场强盛小D. 由公式 EkQ2 可知 , 在离点电荷特别近的地方r 0, 电场强度 E 无量大r2. 用控制变量法 , 能够研究影响平行板电容器电容的要素 ( 以下图 ). 设两极板正对面积为S , 极板间的距离为 d , 静电计指针偏角为. 实验中 , 极板所带电荷量不变 , 则以下说法正确的是()A. 保持S 不变 , 增大d, 则变大B. 保持C. 保持S 不变 , 增大 d 不变 , 减小d , 则 S , 则变小变小D. 保持d 不变 , 减小S , 则不变3. 电阻 R 和电动机 M 串通接到电路中 , 以下图 , 已知电阻 R 跟电动机线圈的电阻值相等, 开关接通后 , 电动机正常工作 . 设电阻 R 和电动机 M 两头的电压分别为U 1 和 U 2 , 经过时间 t ,电流经过电阻R做功为 W1,产生热量为 Q1,电流经过电动机做功为W2,产生热量为 Q2.则有 ()A.U1 U2,Q1 Q2B.U1=U2,Q1 Q2C.W1 =W2 ,Q1 Q2D.W1 <W2 ,Q1 Q24. 工人师傅在改装电炉时, 为了使电功率减小到本来的一半, 以下举措中可行的是()A.截去一半电炉丝B.串连一条同样的电炉丝C.并联一条同样的电炉丝D.把连结电炉和电源的电线长度增添一倍5. (在以下图的电路中), 当闭合开关S 后,若将滑动变阻器的滑片P向下调理, 则正确的选项是A.电压表和电流表的示数都增大B.灯 L2变暗,电流表的示数减小C.灯 L1变亮,电压表的示数减小D.灯 L2变亮,电容器的带电量增添6. 以下图 , 直线A为某电源的U I 图线,曲线B为某小灯泡D1的 U I 图线的一部分,用该电源和小灯泡 D1构成闭合电路时, 灯泡D1恰巧能正常发光 , 则以下说法中正确的选项是 ()A. 此电源的内阻为2/3B. 灯泡D1的额定电压为 3 V, 功率为 6 WC. 把灯泡D1换成“3V,20W”的灯泡D2,电源的输出功率将变小D. 因为小灯泡 B 的U I图线是一条曲线, 因此灯泡发光过程, 欧姆定律不合用7. 以下图, 虚线a、b、 c 代表电场中的三个等势面, 相邻等势面之间的电势差相等, 即U ab U bc,实线为一带负电的质点仅在电场力作用下经过该地区时的运动轨迹,P、R 、Q 是这条轨迹上的三点,R点在等势面 b 上,据此可知()A. 带电质点在P 点的加快度比在Q 点的加快度小B. 带电质点在P 点的电势能比在Q 点的小C. 带电质点在P 点的动能大于在Q 点的动能D. 三个等势面中 , c 的电势最高8. 以下对于起电的说法错误的选项是()A. 一个带电体接触一个不带电的物体, 两个物体必定会带上等量的同种电荷B. 静电感觉不是创建电荷, 不过电荷从物体的一部分转移到了另一部分C. 摩擦能够起电 , 是广泛存在的现象, 互相摩擦起电的两个物体老是同时带等量的异种电荷D. 摩擦和感觉都能使电子转移, 只可是前者是电子从一个物体转移到另一个物体, 后者则使电子从物体的一部分转移到另一部分9.一带电小球在空中由 A 点运动到 B 点过程中,受重力、电场力和空气阻力三个力。
黑龙江省哈尔滨市阿城区龙涤中学高二上学期期中(学业水平)考试语文试题
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龙涤中学学业水平考试语文试题出题人:审题人:第Ⅰ卷阅读题一、现代文阅读(共33分)(一)论述类文本阅读(本题共3小题,9分)阅读下面的文字,完成1~3题。
古代女子以黛画眉,故称黛眉。
宋词中对于眉毛的描写特别多,《全宋词》中“眉”字出现的次数达到一千五百零九次。
从审美学上来看,眉毛在人的面庞上的作用不容忽视,往往起到画龙点睛之作用。
在一首诗词作品中,对于眉黛的描写,能体现女子的美貌动人。
“层波潋滟远山横,一笑一倾城”(柳永《少年游》)描写了一个美丽的歌女,眉毛像远山一样,眼波流转,千娇百媚。
“远山眉黛长,细柳腰肢袅”(晏几道《生查子》)也是通过描写远山眉、细柳腰,向读者展示出了女子的美貌。
宋人认为,眉毛是很好的表现情感的工具。
通过对眉黛的描写,还可以表现委婉细腻的情感。
宋代词人陈三聘在《鹧鸪天》中写道“春愁何事点眉山”,把女子画眉和春愁结合在了一起。
同样用眉黛来表示愁情的,还有如“金缕歌中眉黛皱。
多少闲愁,借与伤春瘦”(石孝友《蝶恋花》)以及“眉黛只供愁,羞见双鸳鸯字”(贺铸《忆仙姿》)。
可以看出,宋词中关于眉的描写,很多时候都和“愁绪”这个意象联系在一起。
眉黛代表女子,以眉而写愁绪,体现了古代女子的惆怅心理和孤薄命运。
欧阳修的《诉衷情•眉意》中有这样的词句:“都缘自有离恨,故画作、远山长。
”“远山”指的是北宋时期特别流行的一种眉形画法——“远山眉”,即眉毛瘦长而舒扬,颜色略淡。
古人常以山水来表达离别之意,歌女画眉作“远山长”,表明白她内心的凄苦之情,因为她“自有离恨”,故而将眉毛画作远山之形。
“花黄”也称“花子”“额黄”,是古代妇女面部的一种额饰。
它用彩色光纸、绸罗、云母片、蝉翼、蜻蜓翅乃至鱼骨等为原料,染成金黄、霁红或翠绿等色,剪作花、鸟、鱼等形,粘贴于额头、酒靥、嘴角、鬓边等处。
《木兰辞》中描写木兰得胜归家,换回女儿装的场景为“对镜贴花黄”,说明南北朝时期,在脸上贴装饰物,已然成为一种风尚。
2019-2020学年黑龙江省哈尔滨市阿城区龙涤中学校高二上学期期中考试物理试题
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2019-2020学年黑龙江省哈尔滨市阿城区龙涤中学校高二上学期期中考试物理试题★祝考试顺利★注意事项:1、答题前,请先将自己的姓名、准考证号用0.5毫米黑色签字笔填写在试题卷和答题卡上的相应位置,并将准考证号条形码粘贴在答题卡上的指定位置。
用2B铅笔将答题卡上试卷类型A后的方框涂黑。
2、选择题的作答:每个小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。
写在试题卷、草稿纸和答题卡上的非选择题答题区域的答案一律无效。
3、主观题的作答:用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域的答案一律无效。
如需改动,先划掉原来的答案,然后再写上新答案;不准使用铅笔和涂改液。
不按以上要求作答无效。
4、选考题的作答:先把所选题目的题号在答题卡上指定的位置用2B铅笔涂黑。
答案用0.5毫米黑色签字笔写在答题卡上对应的答题区域内,写在试题卷、草稿纸和答题卡上的非选修题答题区域的答案一律无效。
5、保持卡面清洁,不折叠,不破损,不得使用涂改液、胶带纸、修正带等。
6、考试结束后,请将本试题卷、答题卡、草稿纸一并依序排列上交。
一、选择题1. 一充电后的平行板电容器保持两极板的正对面积、间距和电荷量不变,在两极板间插入一电介质,其电容C 和两极板间的电势差U 的变化情况是A. C 和U 均增大B. C 增大,U 减小C. C 减小,U 增大D. C 和U 均减小【答案】B【解析】解:由公式知,在两极板间插入一电介质,其电容C增大,由公式知,电荷量不变时U减小,B正确.故选B【点评】本题考查了等容的定义式和决定式的配合应用.2.两个大小相同的金属小球A、B分别带有q A︰q B=4︰1数值的电荷量,相距较远,相互间引力为F.现将另一个不带电的、与A、B完全相同的金属小球C,先与A接触,再与B接触,然后离开,则A、B间的作用力变为A.18F B.116F C.12F D.14F 【答案】D 【解析】【详解】原来AB 球之间是库仑引力,故AB 带异种电荷,不妨设A 为正电荷、B 为负电荷。
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龙涤中学学业水平考试英语试题出题人:审题人:阅读理解 (共两节,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A、B、C和D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
ASan Francisco Fire Engine ToursSan Francisco Winery TourRunning: February 1st through April 30thThis delicious tour goes through the city on its way to Treasure Island where we will stop at the famous Winery SF. Here you can enjoy 4 pours of some of the best wine San Francisco has to offer.(Included in tickets price)Departing from the Cannery: Tell time upon request.Duration(时长): 2 hoursPrice: $90Back to the Fifties TourRunning: August 16th through August 31stThis tour transports you back in time to one of San Francisco’s most fantastic periods, the 1950s! Enjoy fun history as we take you through San Francisco for a free taste of ice cream.Departing form the Cannery: 5:00 pm and 7:00 pmDuration: 2 hoursPrice: $90Spooky Halloween TourRunning: October 10th through October 31stJoin us for a ride through the historical Presidio district .Authentic fire gear (服装) is provided for your warmth as our entertainers take you to some of the most thrilling parts of San Francisco.Departing from the Cannery: 6:30 pm and 8:30 pmDuration: 1 hour and 30 minutesPrice: Available upon requestHoliday Lights TourRunning: December 6th through December 23rdThis attractive tour takes you to some of San Francis’s most cheerful holiday scenes. Authentic fire gear is provided for your warmth as you get into the holiday spirit.Departing from the Cannery: 7:00 pm and 9:00 pmDuration: I hour and 30 minutesAdvance reservations required.1.Which of the tours is available in March?A.San Francisco Winery Tour.B.Back to the Fifties Tour.C.Spooky Hallowen Tour.D.Holiday Lights Tour.2.What can tourists do on Back to the Fifties Tours?A.Go to Treasure Island.B.Enjoy the holiday scenes.C.Have free ice cream.D.Visit the Presidio district.3.What are tourists required to do to go on Holiday Lights Tour?A.Take some drinks.B.Set off early in the morning.C.Wear warm clothes.D.Make reservations in advance.BTwo years ago my grandmother was going to turn 75. My family discussed what was the best way to celebrate. Should we throw her a party? Should we take her on a trip? We remembered that she had touched so many people' s lives, and there were so many people for her to consider. Then someone got the idea that we should include everyone in the celebration.We secretly sent out letters to the people in Grandmother's address book and asked them to send a letter with a memory that they had shared with her. People sent us letters with poems, stories and pictures. The deep feeling that was shared through the response (回应) surprised us. We compiled (编辑) these letters into a memory book and amazed (使惊奇) her with it on the morning of her birthday.The unusual thing about my grandmother's friends was not the number that she had, but the connection they shared. In many ways this book of friendship was the greatest achievement of my grandmother’s life.I believe that developing true friendships is one of the most important things that anyone can do in one's lifetime. It is not a matter of the number of friends one has, but the quality of the bonds. If one has had at least one true friendship before dying, then one can say one has lived a successful life. I have made many friends and I believe I have begun to develop the same types of friendships my grandmother kept up over her lifetime. I only hope that I will-be as successful as she has been.4.How did the author's family celebrate Grandmother' s birthday?A.By taking her on a trip across the country.B.By giving her a memory book of friendship.C.By inviting all her friends to her birthday party.D.By asking all her friends to send her cards.5.When receiving her birthday gift, the author' s' grandmother probablyfelt ________.A.disappointed and lonelyB.sorry and sadC.surprised and pleasedD.nervous and excited6.The underlined word " bonds " in the last paragraph probably means _________.A.relationshipsB.worksC.successesD.celebrations7.According to the passage, the author probably agrees that ______.A.the more friends you have, the betterB.friends are more important than familyC.understanding leads to greater successD.true friendship is very important to us1CStephen Hawking, the brilliant British theoretical physicist who published wildly popular books exploring the mysteries of the universe, has died, according to a family spokesman. He was 76.Considered by many to be the world’s greatest living scientist, Hawking was also a cosmologist, astronomer, mathematician and author of numerous books including the landmark“A Brief History of Time,” which has sold more than 10 million copies.With fellow physicist Roger Penr ose, Hawking combined Einstein’s theory of relativity with quantum theory(量子理论) to suggest that space and time would begin with the Big Bang and end in black holes. He also discovered that black holes werenot completely black but emit(释放) radiation and would likely eventually evaporate(蒸发) and disappear. “It will be difficult enough to avoid disasters on planet Earth in the next 100 years, let alone next thousand, or million. The human race shouldn’t have all its eggs in one basket or on one plant.Let’s h ope we can avoid dropping the basket until we have spread the load.”Hawking suffered from ALS (amyotrophic latcral sclerosis), a disease which is usually fatal within a few years. He was diagnosed in 1963, when he was 21, and doctors initially gave him only a few years to live. The disease left Hawking wheelchair-bound and paralyzed. He was able to move only a few fingers on one hand and was completely dependent on others or on technology for everything—bathing, dressing, eating, even speech. “I have b een lucky that my condition has progressed more slowly than is often the case. But it shows that one need not lose hope.” Dramatically, he even guest-starred in the “Star Trek”, “The Simpsons” and the 2014movie “The theory of Everything”.Hawking leave s behind three children and three grandchildren. “We are deeply saddened that our beloved father passed away today,” Hawking’s children, Lucy, Robert and Tim, said in a statement. “He was a great scientist and an extraordinary man whose work and legacy will live on for many years. His courage and persistence with his brilliance and humor inspired people across the world. “We will miss him forever.”8.From the passage, we can learn that _______.A.Hawking was diagnosed with the fatal disease since he was born.B.Hawking was once the main character in the movie and TV series.C.Hawking just published one book titled “A Brief History of Time”D.Hawking had to rely on other people and technology to do everything in life.9.Which of the following is NOT believed by Stephen Hawking?A.The space and time would end in black holes.B.Black holes are not exactly black in color.C.The disasters can be avoided in the next thousand or million years.D.Black holes can give off radiation and will disappear in the end.10.What does the underlined sentence mean?A.The humans should explore other planets to live.B.The humans should stay together to fight the disasters.C.The earth will be destroyed if humans continue to live hereD.No other planets can replace the earth as the living place.11.What would be the best title of the passage?A.A Star Just Went Out in the CosmosB.The Achievements of Stephen HawkingC.Stephen Hawking’s Suffering of the DiseaseD.The Predictions of the Great ManDAs Internet users become more dependent on the Internet to store information, are people remembering less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specificcomputer folder (文件夹). Surprisingly, people later remembered the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called "transactive memory (交互记忆)"According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn't mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.12.The passage begins with two questions to ______.A.introduce the main topicB.show the author's altitudeC.describe how to use the InternetD.explain how to store information13.What can we learn about the first experiment?A.The Sparrow's team typed the information into a computer.B.The two groups remembered the information equally well.C.The first group did not try to remember the information.D.The second group did not understand the information.14.In transactive memory, people ______.A.keep the information in mindB.change the quantity of informationanize information like a computerD.remember how to find the information15.What is the effect of the Internet according to Sparrow's research?A.We are using memory differently.B.We are becoming more intelligent.C.We have poorer memories than before.D.We need a better way to access information.2第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。