商务英语（050262）试题库在线考试题库-商务英语（050262）历年真题模拟试题及答案-自学考试在线试题测试中心-希赛网

题库

首页 > 题库 > 高级英语（00600）

Jim was not his maths teacher's explanation of the problem, for he was still puzzled about it.

Before the details had been worked out, they had to make a(n)___plan for the conference.

Susan knew that she had to work more diligently to be admitted into the master's program.

The new high-rise building the design concept and aesthetic appeal of the architect.

Tom's hesitation led to his colleagues'_about his ability to handle theproblem.

有些人相信死亡的时间是由上帝指定的，因而任何人都不应该把他人的时钟往回拨。然而，假如某位患者的哲学观支持安乐死的话，那么我们就不清楚为什么他人要借宗教之名进行反对，干涉他的死亡选择。另一个顾虑是，安乐死的法律框架如果允许医生在一系列特定情境下配合临终患者的请求，或许会因为开创合法终结他人生命的先例而给社会带来危险。

他母亲走在他前面，一只手拿着一个带有亮纹的包。她的另一只手臂随意摆动着，在阳光下看起来非常白皙。男孩看着那白皙、裸露的手臂，他那藏着不悦的双眼望向海湾，又回头看向他的母亲。

我一直被问及美国黑人的问题，而这些以前从来没有人问过我。我很尴尬，因为我没有任何答案。

例如，每次我们发起新的广告活动，公司内部的人总是第一批上当的。

她从那把椅子挪到这边这把椅子上，只是坐在那里，双手握在一起，眼睛向下看着。

部分问题是与黑人相比，美国女性被洗脑的程度更深，并且更满足于她们作为二等公民的角色。

Every man who has acquired some （1） skill enjoys exercising it until it has become a matter of course, or until he can no longer improve himself.This （2）to activity begins in early childhood: a boy who can stand on his head becomes （3）to stand on his feet. A great deal of work gives the （4）. pleasure that is to bederived from games of skill.The work of a lawyer or a politician must contain（5） a more delectable form a great deal of the same pleasure that is to bederived from playing bridge.I have tried often to search behind the（6） of years for the enchantment I so easily found in those gifts. The essence escapes but its aura（7）. To be（8）, no，invited, into the private lives of strangers, and to share their joys and（9） , was a chance to exchange the Southern bitter（10）. for a cup of mead with Beowulf or a hot cup of tea and milk with Oliver Twist.Thanks to modern machinery, production is outrunning（11）. Organized waste among consumers is the first condition of our （12）prosperity. The sooner a consumer throws（13） the object he has bought and buys another, the better for the producer. At the same time, of course,the producer must do his （14）by producing nothing （15） the most perishable articles.Vanity is a motive of immense（16）. Anyone who has much to do with children knows（17） they are constantly performing some antic and saying“Look at me”".“Look at me”is one of the most（18）desires of the human heart. It can take innumerable forms，from buffoonery to the pursuit of （19）fame. There was a Renaissance Italian princeling who has asked by the（20）on his deathbed if he had anything to repent of.lt is enough for me to concentrate（21）education. America has always despised its teachers and, as a consequence, it has been （22）the teachers it deserves.The quality of first-grade education that my son .（23）, in a NewJersey town noted for the excellence of its（24）. schools, could not, I suppose,be faulted on the level of（25）conscientiousness. The teachers worked rigidly from the approved rigidly programed primers.

What is your attitude towards innovation in the manufacturing industry?

If Skylon does eventually fly, its first use is likely to be as an unmanned spaceplane carrying objects into orbit.

Skylon, as Reaction Engines names its design, would be powered by engines able to switch between air and liquid oxygen.

All this explains why existing hypersonic vehicles—-namely satellite-launchers-are rocket-propelled.

Whether supersonic commercial aviation really will work this time shouldthus be clear by the mid 2020s.

Technology moves on, though,and several truly commercial undertakingsthink the time is now ripe for something similar.

（1） On October 24th, 2003 Concorde made its last commercial flight. It carried a full load of passengers,100 of them, from New York to London.And it did so in three and a half hours. It was able to make the journey so rapidly becauseits top speed was Mach 2.04--just over twice the velocity of sound.（2）In its day,Concorde was a superb piece of engineering. But it was also a vanity project，cooked up in the early 1960s by the British and French governments. Issues like profit were ignored. However superb the engineering,with the technology then available the profitable operation ofsuch a plane was impossible.（3）Technology moves on，though，and several truly commercial undertakings think the time is now ripe for something similar. Most of the running is being made by three American firms，Aerion,Boom and Spike. Aerion's offering,the AS2, is a 12-seater intended to fly at Mach 1.4.Overture，the aircraft planned by Boom, will get to Mach 2.2. It will carry 55-75 passengers.Spike's proposal, the S-512,lies between these extremes. It is intended to carry 18 passengers at Mach 1.6.All three firms think that improvements in materials,engine design and the understanding of aerodynamics mean their proposed craft can be operated profitably and without too much discomfort,in the form of sonic booms, to those on the ground below.（4）In February Aerion signed a development deal with Boeing. It also has an arrangement with General Electric(GE) to develop a supersonic engine called Affinity, capable of operating efficiently both subsonically and supersonically.The plan is to attach these，three at a time， to an airframe built by Spirit AeroSystems, a large manufacturer of airframe components.And all this will come to pass,Aerion claims, by 2023-the current target for the AS2 to takeoff.（5） Boom has yet to announce a propulsion system for Overture. But it, too, has development money, having received a tranche of $41m in venture funding in 2017 and a further $100m this January.And it will soon have a prototype, a one-third-scale aircraft that it calls Baby Boom.This is powered by three of GE's J85-15 engines--the military versions of the CJ610, an established workhorse of business jets. All being well， Baby Boom will take to the air early next year and fly at Mach 2.2.（6） Like Boom, Spike has yet to pick an engine, though it plans to do so by the end of the year. It also plans a subsonic demonstration flight in June, and asupersonic demonstration next year. Whether supersonic commercial aviation really will work this time should thus be clear by the mid 2020s.A few visionaries are,however, looking beyond the merely supersonic. They wantto go hypersonic(高超音速)—-beyond Mach 5. That would make it possible to fly to an airport's antipodes in less than four hours.（7）At this speed the physics get scary. Air entering a hypersonic jet engine would be travelling at more than 1.7km per second.Slowing this air down sufficiently for it to be manageable would convert its kinetic energy(动能)into heat so intense that it would melt most of the materials of which such an engine might be made.（8） All this explains why existing hypersonic vehicles--namely satellite-launchers -are rocket-propelled. A rocket carries its own oxidant and so does not need to breathe air. The only alternative that has been tested experimentally is called a supersonic-combustion ramjet. This does not require the incoming air to be slowed down to the same extent as a turbofan.But it has to be accelerated to Mach 5 to start operating, usually by a rocket.（9）A small British company called Reaction Engines does,however, have an alternative on offer. Skylon, as Reaction Engines names its design. would be powered by engines able to switch between air and liquid oxygen. They are known as Synergetic Air Breathing Rocket Engines (SABRE) and would be fuelled by liquid hydrogen,which has a temperature of less than 20 degrees above absolute zero.The trick, when a SABRE is in air-breathing mode,would be to use this coldness to absorb heat generated by the inrushing air before it could cause damage. A heat-exchanger intended to do this was tested successfully in April.（10）At best, the chances of a tiny team working in the metaphorical equivalent ofa garden shed cracking the problem of air-breathing hypersonic flight are slim.But perhaps they are not zero.The fundamental design looks sound, and therehas,over the years，been enough interest from outsiders such as Boeing,Rolls-Royce and BAE to keep the dream alive.（11）If Skylon does eventually fly, its first use is likely to be as an unmanned space plane carrying objects into orbit.But one day，perhaps, it or a successor will--for those rich enough--—make popping over to Sydney for a weekend break seem just the thing.1. What can be learned about Concord from Paragraph 1 ?2.In Paragraph 2, "cooked up is closest in meaning to_.3.According to Paragraph 3, which of the following statements is true?4.According to Paragraph 4,AS2.5.According to paragraph 5, what does “Baby Boom”" refer to?6. In Paragraph 6, the word "visionaries" means "people who are”.7.According to Paragraphs 7-8, what is the problem with the hypersonic jet engine?8.According to Paragraph 9, what is the advantage of SABRE?9.According to Paragraph 10, who are the "outsiders"?10. Which of the following might be the best title for this passage?

His jealous competitors often accuse him of being too（）and of taking away their business.

暂未登录

题库付费用户尊享特权

100%题量做题助教答疑学员专用题库高频考点梳理

上一页 3 4 5 6 7 8 下一页