试题库在线考试题库-历年真题模拟试题及答案-考博英语在线试题测试中心-希赛网

题库

首页 > 题库 > 西北工业大学

Mutual trade implies（）advantages.

After the demonstration the protestors（）quietly.

Practitioners of law and medicine are esteemed in many countries which seems to indicate that （）depends on profession or title.

His alibi was fishy, yet（）to close scrutiny.

He never exerts himself to aid those trying to（）a difficult situation.

The assassin hid himself carefully from view before（）his future victim.

Over-taxation, many argue, impedes initiative, so that government income may actually（）.

During the oil crisis of the 1970s, many states（）speed limits to reduce gasoline use.

Fear of pirate（）led the French to fortify their coastline.

The announcement of the death of their leader caused thereafter a feeling of great despair to（）their lives.

It is generally thought that as teachers work with students, psychology course work is（）to teacher-training.

With her last child having left home, she felt a（）need to fill her time.

For this part, you are required to write a composition on the topic of Looking Forward to the 21st Century. You should write at least 150 words. And the followings are the outline for you.1. The 21st century will be very promising.2. Advantages of the development of science and technology3. Disadvantages of the development of science and technology4. Your preparations for the new century

通过向湖泊、河流，溪流及其他积水地投放石灰可以缓解酸雨所带来的损失。石灰可以缓解酸化的一些征兆，但并非真正的解决方法，对于许多湖泊和流动水体都不太现实，而且也不能解决问题的病根。在污染源降低到一个令人满意的水平之前，我们应该把它看作是一种临时性应付措施。永久性的解决办法就是首先要减少污染源。在保护水和森林方面的严格的控制所起到的作用以外，他们还将在防止腐蚀方面挽救数以百万计的美元的损失。The urban environment has to offer as many recreation activities as possible, and the design of these has to be such that more obligatory activities can also have a recreative aspect. The very best standard of living is nothing if it is not possible to take a pleasant walk in the district, if the children cannot be allowed to play in the streets, because the risks of traffic are too great, if during shopping you can nowhere find a spot for enjoying for a moment the nice weather, in short, if you only feel yourself at home after the street-door of your house is closed after you.

During recent years we have heard much about “race”: how this race does certain things and that race believes certain things and so on. Yet, the（1）phenomenon of race consists of a few surface indications.We judge race usually （2） the coloring of the skin: a white race, a brown race, a yellow race and a black race. But （3） you were to remove the skin you could not （4） anything about the race to which the individual belonged. There is （5） in physical structure, the brain or the internal organs to （6） a difference.There are four types of blood. （7） types are found in every race, and no type is distinct to any race. Human brains are the （8） . No scientists could examine a brain and told you the race to which the individual belonged. Brains will （9） in size, but this occurs within every race. （10） does size have anything to do with intelligence. The largest brain （11） - examined belonged to a person of weak （12） . On the other hand, some of our most distinguished people have had （13） brains.Mental tests which are reasonably （14） show no differences in intelligence between races. High and low test results both can be recorded by different members of any race. （15） equal educational advantages, there will be no difference in average standings, either on account of race or geographical location.Individuals of every race （16） civilization to go backward or forward. Training and education can change the response of a group of people,（17） enable them to behave in a （18） way.The behavior and ideas of people change according to circumstances, but they can always go back or go on to something new （19） is better and higher than anything （20） the past.

The concept of “environment” is certainly difficult and may even be misunderstood; but we have no handy substitute. It seems simple enough to distinguish between the organism and the surrounding environment and to separate forces acting on an organism into those that are internal and biological and those that are external and environmental. But in actual practice this system breaks down in many ways, because the organism and the environment are constantly interacting so that the environment is modified by the organism and vice versa. In the case of man, the difficulties with the environmental concept are even more complicated because we have to deal with man as an animal and with man as a bearer of culture. If we look at man as an animal and try to analyze the environmental forces that are acting on the organism, we find that we have to deal with things like climate, soil, plants, and such-like factors common to all biological situations; but we also find, always, very important environmental influences that we can only class as “cultural”, which modify the physical and biological factors. But man, as we know him, is always a bearer of culture; and if we study human culture, we find that it, in turn, is modified by the environmental factors of climate and geography. We thus easily get into great difficulties from the necessity of viewing culture, at one moment, as a part of the man and, at another moment, as a part of the environment.1.Which of the following words can best describe the popular understanding of “environment” as the author sees it?2.According to the author the concept of “environment” is difficult to explain because（）.3.In analyzing the environmental forces acting on man the author suggests that （）. 4.As for culture, the author points out that （）. 5.In this passage, the author is primarily concerned with（）.

Alfred Nobel, the famous Swedish chemist who founded the Nobel Prize, was born into a family where research and experimentation were almost second nature. His father Immanuel, out of work and penniless, tested his theories of explosives in a laboratory set up in their house. Unfortunately, the elder Nobel remained frustrated in his efforts to apply his natural inventive spirit to establishing a prosperous endeavor.Alfred Nobel worked alongside his father, and by 1850 when he was 17, Alfred had acquired most of his father’s knowledge of and enthusiasm for chemistry. Although numerous other scientists had been intrigued by nitroglycerine, Alfred was the one who finally managed to turn this dangerous substance into a safe and useful explosive. He succeeded in developing dynamite commercially, which laid the foundation for many of the world’s leading chemical enterprises. Aside from introducing the innovative Nobel Igniter in 1864 and dynamite in 1866，Alfred claimed 355 patents including nitrocellulose and substitutes for leather and rubber. He developed clever methods for the production of synthetic silk and was involved in electrochemical, telecommunications, and safety alarm systems as well.Alfred Nobel was a dedicated scientist who became very rich applying his knowledge of chemistry. His sense of guilt over having created a potentially deadly material led him to leave some of his millions to reward individuals who made substantial contributions to certain areas of science. It was natural that he would include chemistry as one of those branches, especially since the end of the nineteenth century brought rapid advancements in the field.1.According to the passage, what is true about Alfred Nobel’s father Immanuel?2.According to the passage, the power of nitroglycerine（）.3.Which of the following conclusions about Alfred Nobel can be drawn from the passage?4.According to the passage, Alfred Nobel made important progress in developing all of the following items EXCEPT （）. 5.It can be inferred from the passage that Alfred Nobel later viewed his invention of dynamite（）.

A weather map is an important tool for geographers. A succession of three or four maps presents a continuous picture of weather changes. Weather forecasters are able to determine the speed of air masses and fronts; to determine whether an individual pressure area is deepening or becoming shallow and whether a front is increasing or decreasing in intensity. They are also able to determine whether an air mass is retaining its original characteristics or taking on those of the surface over which it is moving. Thus, a most significant function of the map is to reveal a synoptic picture of conditions in the atmosphere at a given time.All students of geography should be able to interpret a weather map accurately. Weather maps contain an enormous amount of information about weather conditions existing at the time of observation over a large geographical area. They reveal in a few minutes what otherwise would take hours to describe. The United States Weather Bureau issues information about approaching storms, floods, frosts, droughts, and all climatic conditions in general. Twice a month it issues a 30-day “outlook” which is a rough guide to weather conditions likely to occur over broad areas of the United States. These 30-day outlooks are based upon an analysis of the upper air level which often set the stage for the development of air masses, fronts and storms.Considerable effort is being exerted today to achieve more accurate weather predictions. With the use of electronic instruments and earth satellites, enormous gains have taken place recently in identifying and tracking storms over regions which have but few meteorological stations. Extensive experiments are also in progress for weather modification studies.1.One characteristic of weather maps NOT mentioned by the author in this passage is（）.2.The 30-day forecast is determined by examining （）. 3.The observation of weather conditions by satellites is advantageous because it （）. 4.At the present time, experiments are being conducted in（）.5.A weather map is synoptic because it（）.

Every living thing has an inner biological clock that controls behavior. The clock works all the time even when there are no outside signs to mark the passing of time. The biological clock tells plants when to form flowers and when the flowers should open. It tells insects when to leave the protective cocoon and fly away. And it tells animals when to eat, sleep and wake. It controls body temperature, the release of some hormones and even dreams. These natural daily events are circadian rhythms.Man has known about them for thousands of years. But the first scientific observation of Circadian rhythms was not made until 1729. In that year French astronomer, Jean-Jacques d'Ortous de Mairan, noted that one of his plants opened its leaves at the same time every morning, and closed them at the same time every night. The plant did this even when he kept it in a dark place all the time.Later scientists wondered about circadian rhythms in humans. They learned that man’s biological clock actually keeps time with a day of a little less than 25 hours instead of the 24 hours on a man-made clock.About four years ago an American doctor, Eliot Weitzman, established a laboratory to study how our biological clock works. The people in his experiments are shut off from the outside world. They are free to listen to and live by their circadian rhythms. Dr. Weitzman hopes his research will lead to effective treatments for common sleep problems and sleep disorders caused by aging and mental illness.The laboratory is in the Montefiore Hospital in New York City. It has two living areas with three small rooms in each. The windows are covered, so no sunlight or moonlight comes in. There are no radios or television receivers. There is a control room between the living areas. It contains computers, one-way cameras and other electronic devices for observing the person in the living area. The instruments measure heartbeat, body temperature, hormones in the blood, other substances in the urine and brain waves during sleep.A doctor or medical technician is on duty in the control room 24 hours a day during an experiment. They do not work the same time each day and are not permitted to wear watches, so the person in the laboratory has no idea what time it is.In the first four years of research, Dr. Weitzman and his assistant have observed 16 men between the ages of 21 and 80. The men remained in the laboratory for as long as six months. Last month, a science reporter for The New York Times newspaper, Dava Sobol, became the first woman to take part in the experiment. She entered the laboratory on June 13th and stayed for 25 days. Miss Sobol wrote reports about the experiment during that time, which were published in the Newspaper.1.The biological clock is believed to play an essential role in（）.2.In his observation, the French scientist noticed that the leaves of a certain plant maintained their opening-and-closing cycles （）. 3.The sentence “They are free to listen to and live by their circadian rhythms.” (In Paragraph 4) probably means （）. 4.In the experiment conducted by Mr. Weitzman, the doctor who is on duty does not work the same time each day （）. 5.What is Mr. Weitzman’s ultimate purpose of establishing a laboratory?

The first navigational lights in the New World were probably lanterns hung at harbor entrances. The first lighthouse was put up by Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor. Paid for and maintained by “light dues” levied on ships, the original beacon was blown up in 1776. By then there were only a dozen or so true lighthouses in the colony. Little over a century later, there were 700 lighthouses.The first light erected on the West Coast in the 1850s featured the same basic New England design: a Cape Cod dwelling with the tower rising from the center or standing close by. In New England and elsewhere, though, lighthouses reflected a variety of architectural styles. Since most stations in the Northeast were built on rocky eminences, enormous towers were not the rule. Some were made of stone and brick, others of wood or metal. Some stood on pilings or stilts; some were fastened to rock with iron rods. Farther south, from Maryland through the Florida Keys, the coast was low and sandy. It was often necessary to build tall towers there — massive structures like the majestic Cape Hatteras, North Carolina, lighthouse, which was lit in 1870. At 190 feet, it is the tallest brick lighthouse in the country.Notwithstanding differences in appearance and construction, most American lighthouses shared several features: a light, living quarters and sometimes a bell (or, later; a foghorn). They also had something else in common: a keeper and, usually the keeper’s family. The keeper’s essential task was trimming the lantern wick in order to maintain a steady, bright flame. The earliest keepers came from every walk of life -- they were seamen, farmers, mechanics, rough mill hands — and appointments were often handed out by local customs commissioners as political plums. After the administration of lighthouses was taken over in 1852 by the United States Lighthouse Board, an agency of the Treasury Department, the keeper corps gradually became highly professional.1.What is the best title for the passage?2.Why does the author mention the Massachusetts Bay Colony?3.It can be inferred from the passage that lighthouses in the Northeast did not need high towers because（）.4.According to the passage, where can the tallest brick lighthouse in the United States be found?5.In the second sentence of paragraph 3, which of the following does the word “They” refer to?

暂未登录

学员用户尊享特权

老师批改作业做题助教答疑学员专用题库高频考点梳理

上一页 4 5 6 7 8 9 下一页