题目内容
（请给出正确答案）
A.more bad than it was
B.the worse than before
C.worse than ever before
D.more bad than they were
答案
C、worse than ever before
如果结果不匹配，请 联系老师 获取答案
更多“The new large passenger jets h…”相关的问题
A、Harvard University
B、The State University of New York
C、Yale University
D、Princeton University
The heated air above a fire rises in a pillar of smoke and burnt gases, pulling fresh air in from the sides to replace it. Firefighters use this fact when they "fight fire with fire." They start a fire well in front of the one which they are fighting. Instead of traveling on in front of the huge fire, the smaller fire is pulled back toward it by the updrafts of the larger blaze. As it travels back to meet the large fire, the smaller backfire burns away the fuel that the forest fire needs to survive.
Even when a backfire has been well set, however, the fire may still win the struggle. The wind which the firefighters used to help them may now become their enemy. When the backfire meets the main fire, before both die for lack of fuel, there is tremendous flame, great heat and wild winds. A strong gust may blow the fire into the treetops beyond the area, giving the fire new fuel and a new life.
This passage focuses on ______.
A．how fires start
B．damage caused by fire
C．the fascination of fire
D．fighting forest fires
根据下面内容，回答题：
People often speak of fire as though it were a living creature——It grows， dances， needs oxygen，feeds on whatever it can find， and then dies. And when a forest fire rages out of control， threatening human lives and homes， it must be fought like a "wild animal. " The fight is often desperate， since firefighters" best efforts may be dwarfed by the fury of a large fire. But the fire"s own traits can be used
against it.
The heated air above a fire rises in a pillar of smoke and burnt gases， pulling fresh air in from the sides to replace it. Firefighters use this fact when they "fight fire with fire. " They start a fire well in front of the one which they are fighting. Instead of traveling on in front of the huge fire， the smaller fire is pulled back toward it by the updrafts of the larger blaze. As it travels back to meet the large fire， the smaller backfire burns away the fuel that the forest fire needs to survive.
Even when a backfire has been well set， however， the fire may still win the struggle. The wind which the firefighters used to help them may now become their enemy. When the backfire meets the main fire， before both die for lack of fuel， there is tremendous flame， great heat and wild winds. A strong gust may blow the fire into the treetops beyond the area， giving the fire new fuel and a new life.
This passage focuses on__________. 查看材料
A.how fires start
B.damage caused by fire
C.the fascination of fire
D.fighting forest fires
听力原文： In the next few decades people are going to travel very differently from the way they do today. Everyone is going to drive electrically powered cars. So in a few years people won't worry about running out of gas.
Some of the large automobile companies are really moving ahead with this new technology. F ＆ C Motors, a major auto company, for example, is holding a press conference next week. At the press conference the company will present its new, electronically operated models.
Transportation in the future won't be limited to the ground. Many people predict that traffic will quickly move to the sky. In the coming years, instead of radio reports about road conditions and highway traffic, news reports will talk about traffic jams in the sky.
But the sky isn't the limit. In the future, you'll probably even be able to take a trip to the moon. Instead of listening to regular airplane announcements, you'll hear someone say, "The spacecraft to the moon leaves in ten minutes. Please check your equipment. And remember, no more than ten ounces of carry-on baggage are allowed."
(23)
A．Synthetic fuel.
B．Solar energy.
C．Alcohol.
D．Electricity.
In terms of population density, London is one of the least crowded major cities in the world---four times fewer people per square kilometer than Paris, for example, six times fewer than New York and eight times fewer than Cairo. But the fact remains that the city’s population is growing at a rapid rate, and horizontal expansion into the surrounding areas is eating up increasingly important agricultural land, as well as worsening all the transport problems that come with urban growth.
Popular Architecture would propose a radically different solution. The proposal is to go upwards, with vertical towers of considerable size, each representing an entire new town, by the time it’s completed. Each tower would be 1500 meters high. Beyond mere accommodation, each tower would function as an entire town unit, with its own schools, hospitals, parks and gardens, sports faculties, business areas and community spaces. The population density of such a tower could help lower the individual energy requirements of each inhabitant, reducing the ecological impact of the population as a whole.
The village towers are considered as hollow tubes, with large holes to allow light and air though the entire construction. Occasional floor discs spread throughout the height of the building will give inhabitants large central areas in the middle of the tube to use as gathering spaces.
While the building itself is unlikely ever to be seriously considered for construction---imagine the number of elevators it would need, let alone the safety implications of open areas at such heights and with such wind exposure---the concept can serve as conversation-starter for urban planners looking to face the challenges of the current and coming countries.
One key challenging task for urban architects in the future is to ______.
A.build new satellite towns
B.work out ambitious plans
C.design less crowded cities
D.accommodate more inhabitants
Which of the following cities has the largest population density？
A.Cairo.
B.Paris.
C.London.
D.New York.
Horizontal expansion not only wastes land, but makes it hard for London to ______.
A.handle its safety problems
B.resolve its transport issues
C.control its population growth
D.measure its population density
The vertical tower would represent an entire new town in itself because______.
A.it is energy-saving
B.it is cost-effective
C.it is self-sufficient
D.it is comfort-oriented
For city planners today, the idea of building a vertical tower can become______.A.a topic for fun
B.a shocking reality
C.a modest proposal
D.a source of inspiration
请帮忙给出每个问题的正确答案和分析，谢谢！
The heightened alert【2】an emergency meeting with flu experts in Geneva that assembled after a sharp rise in cases in Australia, and rising【3】in Britain, Japan, Chile and elsewhere.
But the epidemic is "【4】" in severity, according to Margaret Chan, the organization's director general,【5】the overwhelming majority of patients experiencing only mild symptoms and a full recovery, often in the【6】of any medical treatment.
The outbreak came to global【7】in late April 2009, when Mexican authorities noted an unusually large number of hospitalizations and deaths【8】healthy adults. As much of Mexico City shut down at the height of a panic, cases began to【9】in New York City, the southwestern United States and around the world.
In the United States, new cases seemed to fade【10】warmer weather arrived. But in late September 2009, officials reported there was【11】flu activity in almost every state and that virtually all the【12】tested are the new swine flu, also known as (A) H1N1, not seasonal flu. In the U. S. , it has【13】more than one million people, and caused more than 600 deaths and more than 6,000 hospitalizations.
Federal health officials【14】Tamiflu for children from the national stockpile and began【15】orders from the states for the new swine flu vaccine. The new vaccine, which is different from the annual flu vaccine, is【16】ahead of expectations. More than three million doses were to be made available in early October 2009, though most of those【17】dose were of the FluMist nasal spray type, which is not【18】for pregnant women, people over 50 or those with breathing difficulties, heart disease or several other【19】. But it was still possible to vaccinate people in other high-risk groups: health care workers, people【20】infants and healthy young people.
(1)
A．criticized
B．appointed
C．commented
D．designated
With the growing prosperity brought on by the Second World War and the economic boom that followed it, young people married and established households earlier and began to raise large families than had their predecessors during the Depression. Birth rate rose to 102 per thousand in 1946, 106.2 in 1950, and 118 in 1955. Although economics was probably the most important factor, it is not the only explanation for the baby boom. The increased value placed on the idea of the family also helps to explain this rise in birth rates. The baby boomers began streaming into the first grade by the mid-1940's and became a flood by 1950. The public school system suddenly found itself overtaxed. While the number of school children rose because of wartime and postwar conditions, these same conditions made the schools even less prepared to cope with the flood. The wartime economy meant that few new schools were built between 1940 and 1945. Moreover, during the war and in the boom times that followed, large numbers of teachers left their profession for better- paying jobs elsewhere in the economy.
Therefore, in the 1950'S and 1960's, the baby boom hit an old- fashioned and inadequate school system. Consequently, it was impossible to keep youths aged sixteen and older in school as in 1930's and early 1940's. Schools were to find space and staff to teach younger children aged from five to sixteen. With the baby boom, the focus of educators and of laymen interested in education inevitably turned toward the lower grade and back to basic academic skills and discipline. The system no longer had much interest in offering nontraditional, new, and extra services to older youths.
What is the passage mainly concerned with？
A．The impact of the baby boom on public education.
B．Birth rates in the United States in the 1930's and 1940's.
C．The teaching profession during the baby boom.
D．The role of the family in the 1950's and 1960's.
B.the widespread use of smartphones all over the world
C.the huge impact of new technology on people's everyday life.
D.the rapid technological progress in a very short period of time
what can we expect to see by the year 2020？A.apps for the internet of things
B.the emergence of millennials
C.the popularization of smart homes.
D.total globalization of the world
what is the most exciting challenge when we possess more and more data？A.how to turn it to profitable use
B.how to link the actionable systems
C.how to do real time data analysis
D.how to devise new ways to store it.
what does the author think about working from anywhere and at anytime？A.it is feasible with a connection to the internet
B.it will thrive in smart buildings, cities and homes
C.it is still a distant utopian dream for ordinary workers
D.it will deliver tangible benefits to both boss and worker
what will business owners do when they become aware of the benefits of the internet of things？A.employ fewer workers in their operations
B.gain automatic control of their businesse
C.invest in more smart buildings and cities
D.embrace whatever new technology there is
请帮忙给出每个问题的正确答案和分析，谢谢！
