以下是小编帮大家整理的《我的大学》练习题，本文共6篇，仅供参考，欢迎大家阅读。
篇1：大学无机化学练习题
大学无机化学练习题
1. 某气体在293K与9.97×104Pa时占有体积1.910-1dm3其质量为0.132g，试求这种气体的相对分子质量，它可能是何种气体?
2．一敝口烧瓶在280K时所盛的气体，需加热到什么温度时，才能使其三分之一逸出?
3． 温度下，将1.013105Pa的N2 2dm3和0.5065Pa的O23 dm3放入6 dm3的真空容器中，求O2和N2的分压及混合气体的总压。
4． 容器中有4.4 g CO2，14 g N2，12.8g O2，总压为2.02610Pa，求各组分的分压。
5． 在300K，1.013105Pa时，加热一敝口细颈瓶到500K，然后封闭其细颈口，并冷却至原来的温度，求这时瓶内的压强。
6． 在273K和1.013×105Pa下，将1.0 dm3洁净干燥的空气缓慢通过H3C—O—CH3液体，在此过程中，液体损失0.0335 g，求此种液体273K时的饱和蒸汽压。
7． 有一混合气体，总压为150Pa，其中N2和H2的体积分数为0.25和0.75，求H2和N2的'分压。
8． 在291K和总压为1.013×105Pa时，2.70 dm3含饱和水蒸汽的空气，通过CaCl2干燥管，完全吸水后，干燥空气为3.21 g，求291K时水的饱和蒸汽压。
9． 有一高压气瓶，容积为30 dm3，能承受2.6×107Pa，问在293K时可装入多少千克O2而不致发生危险？
10．在273K时，将同一初压的4.0 dm3 N2和1.0dm3 O2压缩到一个容积为2 dm3的真空容器中，混合气体的总压为3.26×105 Pa，试求
（1）两种气体的初压；
（2）混合气体中各组分气体的分压；
（3）各气体的物质的量。
篇2：大学英语六级阅读练习题
Computers monitor everything in Singapore from soil composition to location of manholes. At the airport, it took just 15 seconds for the computerized immigration system to scan and approve my passport. It takes only one minute to be checked into a public hospital.
By , almost every household will be wired for interactive cable TV and the Internet, the global computer network. Shoppers will be able to view and pay for products electronically. A 24-hour community telecomputing network will allow users to communicate with elected representatives and retrieve information about government services. It is all part of the government’s plan to transform the nation into what it calls the “Intelligent Island”.
In so many ways, Singapore has elevated the concept of efficiency to a kind of national ideology. For the past ten years, Singapore’s work force was rated the best in the world-ahead of Japan and the U.S.-in terms of productivity, skill and attitude by the Business Environment Risk Intelligence service.
Behind the “Singapore miracle” is a man Richard Nixon described as one of “the ablest leaders I have met,” one who, “in other times and other places, might have attained the world stature of a Churchill.” Lee Kuan Yew led Singapore’s struggle for independence in the 1950s, serving as Prime Minister from 1959 until 1990. Today (1995), at 71, he has nominally retired to the office of Senior Minister, where he continues to influence his country’s future. Lee offered companies tax breaks, political stability, cheap labor and strike-free environment.
Nearly 90 percent of Singaporean adults now own their own homes and thanks to strict adherence to the principle of merit, personal opportunities abound. “If you’ve got talent and work hard, you can be anything here,” says a Malaysian-born woman who holds a high-level civil-service position.
Lee likes to boast that Singapore has avoided the “moral breakdown” of Western countries. He attributes his nation’s success to strong family ties, a reliance on education as the engine of advancement and social philosophy that he claims is superior to America’s.
In an interview with Reader’s Digest, he said that the United States has “lost its bearings” by emphasizing individual rights at the expense of society. “An ethical society,” he said, “is one which matches human rights with responsibilities.”
1.What characterizes Singapore’s advancement is its___.
A.computer monitoring.
B.work efficiency.
C.high productivity.
D.value on ethics.
2.From Nixon’s perspective, Lee is___.
A.almost as great as Churchill.
B.not as great as Churchill.
C.only second to Churchill in being a leader.
D.just as great as Churchill.
3.In the last paragraph, “lost its bearings” may mean___.
A.become impatient.
B.failed to find the right position.
C.lost its foundation.
D.grown band-mannered.
4.“You can be anything here”(Paragraph 5) may be paraphrased as___.
A.You can hope for a very bright prospect.
B.You may be able to do anything needed.
C.You can choose any job as you like.
D.You will become an outstanding worker.
5.In Singapore, the concept of efficiency___.
A.has been emphasized throughout the country.
B.has become an essential quality for citizens to aim at.
C.is brought forward by the government in order to compete with America.
D.is known as the basis for building the “Intelligent Island.”
答案：DDBAB
篇3：《我是什么》练习题
《我是什么》练习题
一、照样子组字组词。
西(西瓜)火中()
(晒)(晒台)()()()()
力()不()方()
()()()()()()
二、按课文内容填空。
1.我在空中()着，碰到冷风，就变成()落下来，这时我叫()。有时变成小()，人们又叫我()，冬天，我()飘下来，人们又管我叫“雪”。
2.我()人们做过很多好事，但也给人们带来很多()。
三、照样子写句子。
1.上课的'时候，老师很温和，我们学习很愉快。
温和——
2.同学有困难的时候，我们要热心帮助。
篇4：《我是什么》练习题参考
《我是什么》练习题参考
二年级语文上册练习题《我是什么》
一、根据课文组词
冲晒池浮
灾害黑器
二、填填记记
1、平时我在池子里______，在小溪里______，在江河里______，在海洋里______，______，________。
2、有时候我很______，有时候我很______。我做过许多好事，__________，__________，帮助人们工作。我也做过许多坏事，__________，__________，给人们带来灾害。
3、我会变，太阳一晒，我就变成____。升到天空，我又变成____，在空中漂浮着。碰到冷风，我会变成____、______或____落下来。
4、你们猜我是什么?我就是______。
三、品味探究
课文第三段哪个词语写大海里的.水很多很多?__________
四、实践活动
做水变成汽又变成雨落下来的实验。
篇5：大学英语六级阅读暑假练习题
The direct raya of the sun touch the equator and strike northward toward the Tropic of Cancer. In the Southern hemisphere winter has begun, and it is summer north of the equator. The sea and air grow warmer; the polar air of winter begins its gradual retreat.
The northward shift of the sun also brings the season of tropical cyclones to the northern hemisphere, a season that is ending for the Pacific and India Oceans south of the equator. Along our coasts and those of Asia. it is time to look seaward. to guard against the season's storms. Over the Pacific, the tropical cyclone season is never quite over. but varies in intensity. Every year. conditions east of the Philippines send a score of violent storms howling toward Asia, but it is worst from June through October. Southwest of Mexico. a few Pacific hurricanes will grow during spring and summer. but most will die at sea or perish over the desert or the lower California coast as squalls.
Along our Atlantic and Gulf coasts. the hurricane season is from June to November. In an average year, there are fewer than ten tropical cyclones and six of them will develop into hurricanes. These will kill 50 to 100 persons between Texas and Maine and cause property damage of more than $100 million. If the year is worse than average, we will suffer several hundred deaths,and property damage will run to billions of dollars.
Tornadoes, floods, and severe storms are in season elsewhere on the continent. Now, to these destructive forces must be added the hazard of the hurricane. From the National Hurricane Center in Miami. a radar fence reaches westward to Texas and northward to New England. It provides a 200-mile look into offshore disturbances. In Maryland. che giant computers of the National Meteorological Center digest the myriad bits of data-atmospheric pressure, temperature, humidity, surface winds. and winds aloft-received from weather stations and ships monitoring the atmospheric setting each hour, every day. Cloud photographs from spacecraft orbiting the earth are received in Maryland and are studied for che telltale spiral on the warming sea. The crew of United States aircraft over the Gulf of Mexico, Caribbean, and Atlantic watch the sky and wait for the storm that will bear a person's name. The machinery of early warning vibrates with new urgency as the season of great storms begins.
【参考译文】
[1]太阳直射光线接近赤道并向北回归线移动。南半球冬季开始了，而赤道北面则是夏季。海洋和天空变得温暖，冬天的极地气团开始逐渐减弱。
[1]太阳北移也为北半球带来了热带气旋季节，而太平洋和印度洋的赤道以南部分却是这个季节的结束。沿着我国和亚洲的海岸，又到了监视海洋、提防夏季暴风的时候了。[2]在整个太平洋上空热带气旋季节从来就不会完全过去，只是强度会有所不同。每年菲律宾东部一带会生成20个暴风咆哮刮向亚洲，但从6月直到整个10月是最糟糕的日子。[2]/[3]在墨西哥西南部，春季和夏季会生成几个太平洋飓风，但是大多数会在海上消亡，或者成为暴风雨而在沙漠的上空或加利福尼亚南部海岸消逝。
在我国的太西洋和海湾沿岸，飕风季节从6月到11月。在一般的年份，热带气旋少于10个，有6个会发展成飓风。从得克萨斯州到缅因州，这些飓风令导致50到100人丧生，造成超过1亿美元的财产损失。如果是比一般年份更糟，就会有几百人丧生和高达几十亿美元的财产损失。
此时大陆的其他地方正是龙卷风、洪水和猛烈暴风的季节。现在，除了这些破坏性的天气以外，还得加上飓风的危险。[4]在迈阿密的国家飓风中心，西至得克萨斯州，北至新英格兰建起了一道雷达防护栏。它可以对离岸200英里的大气扰动进行监视。在马里兰州，国家气象中心巨型计算机对巨量的数据进行整理，这些数据包括从每时每日监测着大气状况的各个气象观测站台和观测船只接收到的大气压力、温度、湿度、表面风和高空风等等数据。马里兰州还接收从在地球轨道飞行的太空船发回的云图，研究在温暖海洋上空的那些先兆性气旋。在墨西哥湾、加勒比海和大西洋上空飞行的美国飞机上的机务人员监视着无空，等待着以一个人的名字书名的暴风到来。随着巨大暴风季节的开始，早期预警机制会对新的紧急状况迅速发出警报。
【测试题】
1.The cyclone season of the Southern hemisphere__________________.
A) is brought by the polar air of winter
B) ends when winter comes to the Southern hemisphere
C) virtually lasts throughout the year
D) begins when the sun rays strike the Tropic of Cancer
2.What is true about the storms howling towards Asia?
A) They originate over the Pacific.
B) They influence Southeast Asia most violently.
C) They mainly grow during spring and summer.
D) They usually perish off coast.
3.When the Pacific hurricanes reach the lower California. most of them will_____________.
A) reduce their intensity B) increase their intensity
C) cause much property damage D) result in great rain and floods
4.What can we leam about the National Hurricane Center in Miami?
A) It mainly provides protection against hurricanes to Texas and New England.
B) It warns the whole country against tornadoes, severe storms and hurricanes.
C) It consists of radars along the coast of the west and the north of U.S.
D) It supervises the coastal areas stretching from Texas to New England.
5.The passage discusses most clearly about_______________.
A) the factors that cause hurricanes
B) the most risky areas that suffer hurricanes
C) the early warning system against hurricanes
D) the remedies for property damage by hurricanes
篇6：大学六级英语阅读练习题
They're still kids, and although there's a lot thatthe experts don't yet know about them, one thingthey do agree on is that what kids use and expectfrom their world has changed rapidly. And it's allbecause of technology.
To the psychologists, sociologists, and generational and media experts who study them,their digital gear sets this new group apart, even from their tech-savvy (懂技术的) Millennialelders. They want to be constantly connected and available in a way even their older siblingsdon't quite get. These differences may appear slight, but they signal an all-encompassingsensibility that some say marks the dawning of a new generation.
The contrast between Millennials and this younger group was so evident to psychologistLarry Rosen of California State University that he has declared the birth of a new generation in anew book, Rewired: Understanding the ingeneration and the Way They Learn, out next month.Rosen says the tech-dominated life experience of those born since the early 1990s is sodifferent from the Millennials he wrote about in his 2007 book, Me, MySpace and I: Parenting theNet Generation, that they warrant the distinction of a new generation, which he has dubbedthe “ingeneration”.
“The technology is the easiest way to see it, but it's also a mind-set, and the mind-set goeswith the little ‘i', which I'm talking to stand for 'individualized',” Rosen says. “Everything isdefined and individualized to ‘me'. My music choices are defined to ' me'. What I watch onTV any instant is defined to ‘me'. ” He says the iGeneration includes today's teens and middle-school ers, but it's too soon to tell about elementary-school ages and younger.
Rosen says the iGeneration believes anything is possible. “If they can think of it, somebodyprobably has or will invent it,” he says. “They expect innovation.”
They have high expectations that whatever they want or can use “will be able to be tailoredto their own needs and wishes and desires.”
Rosen says portability is key. They are inseparable from their wireless devices, which allowthem to text as well as talk, so they can be constantly connected-even in class, where cellphones are supposedly banned.
Many researchers are trying t6 determine whether technology somehow causes the brainsof young people to be wired differently. “They should be distracted and should perform morepoorly than they do,” Rosen says. “But findings show teens survive distractions much betterthan we would predict by their age and their brain development. ”
Because these kids are more immersed and at younger ages, Rosen says, the educationalsystem has to change significantly.
“The growth curve on the use of technology with children is exponential(指数的), and werun the risk of being out of step with this generation as far as how they learn and how theythink,” Rosen says.
“We have to give them options because they want their world individualized. ”
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