题目内容
All possible means________.However,nothing can________him dying of lung cancer.A.has tried;stop B.have been tried;keep
C.has been tried;prevent D.have been tried;stop
解析:
Why should mankind explore space? Why should money, time and effort be spent exploring and researching something with so few apparent benefits? Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked.
Perhaps the best answer lies in our genetic makeup(基因构成) as human beings.What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of' a species, the better its chance of' survival. Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible. Nearly every successful civilization has explored, because by doing so, any dangers in surrounding areas can be identified and prepared for. Without knowledge, we may be completely destroyed by the danger. With knowledge, we can lessen its effects.
Exploration also allows minerals and other potential(潜在的) resources to be found.Even if' we have no immediate need of them, they will perhaps be useful later. Resources may be more than physical possessions. Knowledge or techniques have been acquired through exploration.The techniques may have medical applications which can improve the length or quality of our lives.We have already benefited from other spin-offs including improvements in earthquake prediction, in satellites for weather forecasting and in communications systems. Even non-stick pans and mirrored sunglasses are by-products (副产品) of technological developments in the space.
While many resources are spent on what seems a small return, the exploration of' space us.While space may hold many wonders and explanations of how the universe was formed or how it works, it also holds dangers. The danger exists, but knowledge can help human being to survive. Without the ability to reach out across space, the chance to save ourselves might not exist.
While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us to live on other planets. It is true that the lifestyle would be different, but human life and cultures have adapted in the past and surely could in the future.
【小题1】Why does the author mention the questions in Paragraphl ?
A.To express his doubts. |
B.To introduce points for discussion. |
C.To compare different ideas. |
D.To describe the conditions on Earth. |
A.Humans are nature-born to do so. |
B.Humans have the tendency to fight. |
C.Humans may find new sources of food. |
D.Humans don't like to stay in the same place. |
A.survival chances | B.potential resources |
C.unexpected benefits | D.physical possessions |
A.Our genetic makeup. | B.The adaptive ability of' humans. |
C.Resources on the earth. | D.By-products in space exploration. |
A.Space exploration has created many wonders. |
B.Space exploration provided the best value for money. |
C.Space exploration can benefit science and technology. |
D.Space exploration may help us avoid potential problems on Earth. |
¤ While the 2008 Olympics were the first to be broadcast entirely in HD, the 2012 Olympics are the first to broadcast in HD as well as 3D. Sean Taylor, a spokesperson for Panasonic – provider of some of the technologies – said it effectively, “Each Games, from a technology perspective, tries to have a first. London will be the first HD and 3D Games.” The games were first televised in Berlin in 1936 and played on big screens about the city. Then came the first games to enter households (strictly in London that is) in 1948, followed by the first internationally televised games during the 1960 Olympics in Rome. And ever since, that feeling of physically standing in the crowd and watching these mighty contestants has only gotten clearer, more defined. Now, they more literally than ever actually compete in your living room.
§ A paradox is presented as the London games celebrate both the Industrial Revolution (a.k.a. the birth of pollution) and a spirit of committed environmentalism; London will be the first to actively measure its own carbon footprint during these games, designing a stadium and accommodations that cut-back on negative emissions when at all possible. They are also shooting for a world record via the “Javelin,” designed specifically to keep as many exhaust pipes at bay as humanly possible.
【小题1】Which of the following statements is NOT true?
A. The Industrial Revolution first happened in England.
B. 2012 London Olympics is the first to broadcast in HD.
C. People couldn’t see the Olympic Games on TV 80 years ago.
D. 2012 London Olympics is more environmentally friendly than before.
【小题2】What does the underlined word “paradox” probably mean in the text?
A.solid evidence | B.advanced thought |
C.perfect opinion | D.contradictory view |
A.a novel | B.a report | C.a diary | D.an essay |
A.The History of Olympic Games. |
B.Two Firsts about 2012 London Olympics |
C.2012 London Olympics --- Eco-Conscious Games |
D.2008 Beijing Olympics and 2012 London Olympics |