San Francisco is often cool in summer, but Los Angeles seldom is.()
A.simple sentence
B.compound sentence
C.complex sentence
D.compound-complex sentence
A.simple sentence
B.compound sentence
C.complex sentence
D.compound-complex sentence
Television works in much the same way as radio.In radio, sound is changed into electromagnetic waves which are sent through the air.Experiments leading to modern television took place more than a hundred years ago.By the 1920s inventors and researchers had turned the early theories into working models.Yet it took another thirty years for TV to become industry.
The influence of TV on the life of the people is incalculable: it can influence their thoughts and their way of life.It can also add to their store of knowledge.Educational TV stations offer teaching in various subjects.Some hospitals use TV for medical students to get close-up views of operations.At first television programs were broadcast in black-and-white.With the development of science and technology, the problem of how to telecast them in full color was solved and by the middle 1960s the national networks were broadcasting most of their programs in color.
The programs that people watch are not only local and national ones.Since the launching of the first communications satellite, more and more programs are telecast ‘live’ from all over the world.People in San Francisco were able to watch the 1964 Olympic Games in Tokyo.And live telecasts now come form. outer space.In 1969, the first astronauts to land on the moon televised their historic ‘moon walk’ to viewers on the earth.Since then, astronauts have regularly sent telecast to the earth.
1.The launching of communications satellites make it possible for people in San Francisco to ________.
A.get close-up views of operations
B.watch the 1964 Olympic Games in Tokyo
C.store knowledge
D.watch national programs
2.The development of science and technology made it possible for television programs to ______.
A.be telecast in San Francisco B.be telecast in full color
C.be telecast in Tokyo D.be telecast in black-and-white
3.The word ‘incalculable’ means _____.
A.easy to tell
B.difficult to tell
C.very great
D.very small
4.Television is said to be the modern wonder of electronics, because_____.
A.it influences people’s way of life
B.it brings the world into people’s own home in sight and sound
C.it works as radio
D.it makes people see far
5.Television became an industry in ______.
A.1950
B.the 1950s
C.the 1920s
D.the 1960s
One of the most comprehensive ventures was the restoration and transformation of Boston’s eighteenth century Faneuil Hall and the Quincy Market, designed in 1824.This section had fallen on hard times, but beginning with the constuction of a new city hall immediately adjacent, it has returned to life with the intelligent reuse of these fine old buildings under the design leadership of Benjamin Thomson.He has provided a marvelous setting for dining, shopping, professional offices, and simply walking.
Butler Square, in Minnespois, exemplifies major changes in its comples of offices, commercial space, and public amenities carved out of a massive pile designed in 1906 as a hardware warehouse.The exciting interior timber structure of the’building was highlighted by cutting light courts through the interior and adding large skylights.
San Antonio,Texas, offers an object lesson for numerous other cities combating urban decay.Rather than bringing in the bulldozers, San Antonio’s leaders rehabilitated existing structures, while simultaneously cleaning up the San Antonio River,which menders through the business district.
36.What is the main idea of the passage?
A.During the 1970’s, old buildings in many cities were recycled for modern use.
B.Recent interest in ecology issues has led to the cleaning up of many rivers.
C.The San Antonio example shows that bulldozers are not the way to fight urban decay.
D.Strong government support has made adaptive rehabilitation a reality in Boston.
37.What is the space at Quincy Market now used for?
A.Boston’s new city hall.
B.Sports and recreational facilities.
C.Commercial and industrial warehouses.
D.Restaurant, offices, and stores.
38.According to the passage, Benjamin Thomson was the designer for a project
A.San FranciscoB.Boston.
C.Minneapois. D.San Antonio.
39.When was the Butler Square building originally built?
A.In the eighteenth century.
B.In the early nineteenth century.
C.In the late nineteenth century.
D.In the early twentieth century.
40.What is the author’s opinion of the San Antonio project?
A.It is clearly the best of the projects discussed.
B.It is a good project that could be copied in other cities.
C.The extensive use of bulldozers made the project unnecessarily costly.
D.The work done on the river was more important than the work done on the buildings.
Only a few decades ago, renovation was unpopular and generally far more expensive than taking down abandoned building and string from the beginning.A change began in the 1960s with a number of well-advertised projects.They included Ghirardelli Square in San Francisco, where an old chocolate factory was restored and made into shops and restaurants, Trolly Square in Salt Lake, where unused warehouses were made into artists’ studios and apartments.
What caused the change? “One reason is nostalgia,” a San Francisco builder suggests.“Maybe old is better than new, many people are saying.Feelings about preserving attractive or historic buildings have changed a great deal.” A second cause is economy.The cost of tearing down an old building and constructing a new one from nothing now has risen to the point where it is often less expensive to fix a solid older structure.Also builders realize that fixing up an existing building often requires no new permits, sewer lines, or water connections.
Even when the costs of restoration are the same as or a bit more than the costs of putting up a new building, fixing the old building may be better.A Boston architect says The advantage comes when you can develop a final project that is more desirable than a new building – one with the right location, more space, more floor area, a special character, materials of a particular quality.” Gradually, architects and builders are developing knowledge about renovation and preservation, bringing imagination and creativity to the job.
16.In the United States, renovating old buildings_____.
A.has had a long history
B.is becoming increasingly popular
C.is still unpopular
D.has just caught the fancy of architects and builders
17.Ghirardelli Square, Trolley Square, and the Soho district are projects that_________.
A.have been given much publicity
B.are little known to the public
C.have been widely discussed among builders and city planners
D.have changed the building business
18.“Nostalgia” in the 3rd paragraph most probably means________.
A.being conservative
B.being keen on saving money
C.being fond of things new
D.being fond of things of the remote past
19.Which of the following statements is true?
A.Every old building can be renovated for new uses
B.Renovating old buildings is always less costly than putting up new ones
C.Renovation does not require imagination and creativity
D.Fixing an old building may have advantages even when it costs a little more
A.MFT动作
B.锅炉燃油OFT
C.燃烧器进油母管压力小于1.0MPa,(延时2秒)
D.燃烧器进油母管压力大于3.5MPa,(延时2秒)
E.风道燃烧器
F.B出口风道风温大于1000℃(延时5秒)
Passage One
The Urbanization — migration away from the suburbs to the city center — will be the biggest real estate trend in 2015, according to a new report.
The report says America’s urbanization will continue to be the most significant issue affecting the industry, as cities across the country imitate the walkability and transit-oriented development making cities like New York and San Francisco so successful.
As smaller cities copy the model of these “24-hour cities,”tfiore affordable versions of these places will be created. The report refers to this as the coming of the “18-hour city,”,and uses the term to refer to cities like Houston, Austin, Charlotte, and Nashville, which are “positioning themselves as highly competitive, in terms of livability, employment offerings, and recreational and cultural facilities.”
Another trend that looks significant in 2015 is that America’s largest population group, Millennials (千禧一代),will continue to put off buying a house. Apartments will retain their appeal for a while for Millennials, haunted by what happened to home-owning parents.
This trend will continue into the 2020s, the report projects. After that, survey respondents disagree over whether this generation will follow in their parents,footsteps, moving to the suburbs to raise families, or will choose to remain in the city center.
Another issue affecting real estate in the coming year will be America’s failing infrastructure. Most roads, bridges, transit, water systems, the electric grid, and communications networks were installed 50 to 100 years ago, and they are largely taken for granted until they fail.
The report’s writers state that America’s failure to invest in infrastructure impacts not only the health of the real-estate market, but also our ability to remain globally competitive.
Apart from the specific trends highlighted above, which cause some investors to worry, the report portrays an overall optimism borne by the recent healthy real-estate “upcycle” and improving economy. Seventy-four percent of the respondents surveyed report a “good to excellent” expectation of real-estate profitability in 2015. While excessive optimism can promote bad investment patterns, resulting in a real- estate “bubble,” the report’s writers downplay that potential outcome in that it has not yet occurred.
According to the new report, real estate development in 2015 will witness_______ .
A.an accelerating speed
B.a shift to city centers
C.a new focus on small cities
D.an ever-increasing demand
Why are Millennials reluctant to buy a house?A.They can only afford small apartments
B.The house prices are currently too high
C.Their parents' bad experience still haunts them
D.They feel attached to the suburban environment
What characterizes “24-hour cities” like New York?A.People can live without private cars
B.People are generally more competitive
C.People can enjoy services around the clock
D.People are in harmony with the environment
What might hinder real estate development in the U.S.?A.The continuing economic recession in the country
B.The lack of confidence on the part of investors
C.The fierce global competition
D.The worsening infrastructure
How do most of the respondents in the survey feel about the U.S. real-estate market in 2015?A.Pessimistic
B.Hopeful
C.Cautious
D.Uncertain
请帮忙给出每个问题的正确答案和分析,谢谢!
On the other hand, scientists are increasingly learning that aging and biological age are two different things, and that the former is a key risk factor for conditions such as heart disease, cancer and many more. In that light, aging itself might be seen as something treatable, the way you would treat high blood pressure or a vitamin deficiency.
Biophysicist Alex Zhavoronkov believes that aging should be considered a disease. He said that describing aging as a disease creates incentives to develop treatments.
"It unties the hands of the pharmaceutical (制药的.industry so that they can begin treating the disease and not just the side effects," he said.
"Right now, people think of aging as natural and something you can't control," he said. "In academic circles, people take aging research as just an interest area where they can try to develop interventions. The medical community also takes aging for granted, and can do nothing about it except keep people within a certain health range."
But if aging were recognized as a disease, he said, "It would attract funding and change the way we do health care. What matters is understanding that aging is curable."
"It was always known that the body accumulates damage," he added. "The only way to cure aging is to find ways to repair that damage. I think of it as preventive medicine for age-related conditions."
Leonard Hayflick, a professor at the University of California, San Francisco, said the idea that aging can be cured implies the human lifespan can be increased, which some researchers suggest is possible. Hayflick is not among them.
"There're many people who recover from cancer, stroke, or heart disease. But they continue to age, because aging is separate from their disease," Hayflick said. "Even if those causes of death were eliminated, life expectancy would still not go much beyond 92 years."
66.What do people generally believe about aging______
A.It should cause no alarm whatsoever.
B.They just cannot do anything about it.
C.It should be regarded as a kind of disease.
D.They can delay it with advances in science.
67.How do many scientists view aging now______
A.It might be prevented and treated.
B.It can be as risky as heart disease.
C.It results from a vitamin deficiency.
D.It is an irreversible biological process.
68.What does Alex Zhavoronkov think of "describing aging as a disease"______
A.It will prompt people to take aging more seriously.
B.It will greatly help reduce the side effects of aging.
C.It will free pharmacists from the conventional beliefs about aging.
D.It will motivate doctors and pharmacists to find ways to treat aging.
69.What do we learn about the medical community______
A.They now have a strong interest in research on aging.
B.They differ from the academic circles in their view on aging.
C.They can contribute to people's health only to a limited extent.
D.They have ways to intervene in people's aging process.
70.What does professor Leonard Hayflick believe______
A.The human lifespan cannot be prolonged.
B.Aging is hardly separable from disease.
C.Few people live up to the age of 92.
D.Heart disease is the major cause of aging.