A.that | B.while |
C.before | D.when |
A.Convinced; finding | B.Convinced; to find |
C.Convincing; finding | D.Convincing; to find |
A.Having declared | B.Declared |
C.Declaring | D.To declare |
A.Don't fly off the handle | B.Don't be over the moon |
C.More haste, less speed | D.You got me there |
He stood on the comer looking a lot like Santa Claus, a smile on his face and a cup outstretched in his hands. I smiled
His name is Aed. We went together to a comer bakery and then
He was one of the few hand pruners(修剪树枝者)still trying to work. He spoke lovingly and with deep
He spoke of his time
I asked if I could hug him.
Aed gave me a gift that day. It was the gift of his story. We
A.on | B.out | C.back | D.around |
A.cold | B.homeless | C.hungry | D.ill |
A.cried | B.responded | C.nodded | D.agreed |
A.over | B.in | C.at | D.after |
A.stopping | B.pausing | C.trying | D.starting |
A.told | B.spread | C.wrote | D.shared |
A.enthusiasm | B.thought | C.love | D.sorrow |
A.plant | B.water | C.tend | D.grow |
A.attention | B.sunshine | C.time | D.company |
A.working | B.living | C.serving | D.travelling |
A.damaged | B.harmed | C.helped | D.affected |
A.repaired | B.regained | C.ended | D.wound |
A.take | B.send | C.offer | D.donate |
A.chance | B.choice | C.courage | D.consideration |
A.widened | B.looked | C.hit | D.shone |
A.Another | B.More | C.Loud | D.Same |
A.bigger | B.happier | C.longer | D.wider |
A.get | B.stay | C.lose | D.try |
A.brave | B.honest | C.ambitious | D.brilliant |
A.reach | B.give | C.take | D.bring |
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 instead of on conditions and people on Earth? These are questions that, understandably, are very often asked.
Perhaps the best answer lies in our genetic makeup as human beings. What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? With the wide spread of a species, human beings can get high 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 resources to be found. Even if we have no need of them right now, 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 spinoffs including improvements in earthquake prediction, in satellites for weather forecasting and in communications systems. Even nonstick pans and mirrored sunglasses are byproducts of technological developments in the space.
While many resources are spent on what seems a small return, the exploration of space allows creative, brave and intelligent members of our species to focus on what may serve to save 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 beings 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.
Space Exploration | |
Outline of the paragraphs | Detailed information |
Why should we explore space? Why should we invest so much with few visible benefits? Why should resources be spent on space | |
Reasons for exploring space | It is human The Human beings genetically tend to expand where possible. |
By exploring we can have the information and understanding that can help us identify and get | |
Human beings can have unexpected benefits by exploring space. We can find more minerals for future use even if we don't need them Besides physical possession, we can acquire knowledge or techniques through exploration, which results in | |
Faced with danger, human beings' | |
Conclusion | Space exploration may help us |
Your boss tells you that you did a bad job. Your coworker criticizes you in front of your whole team. Ouch! It's not easy to take criticism, no matter who it comes from. But, it is easy to
Phrases like "You’re wrong! ” and “Your presentation was terrible!" have no place in effective
Before starting with the criticism, warm the person up with
However, a short
Remember that the goal of constructive criticism isn’t to make the person feel terrible: it's to help them grow. Instead of directly
People can't change overnight, especially if they don’t get detailed
A.suffer | B.accept | C.soft | D.ignore |
A.defeated | B.encouraged | C.motivated | D.disturbed |
A.discussion | B.argument | C.explanation | D.criticism |
A.Immediate | B.Personal | C.Accurate | D.Continuous |
A.interactions | B.impressions | C.personalities | D.compliments |
A.defense | B.spirit | C.moral | D.position |
A.decisive | B.serious | C.vague | D.concrete |
A.corrected | B.challenged | C.debated | D.absorbed |
A.carefully | B.reluctantly | C.immediately | D.occasionally |
A.praise | B.attitude | C.assistance | D.achievement |
A.helping | B.accusing | C.praising | D.dismissing |
A.make up | B.focus on | C.lead to | D.take away |
A.command | B.comment | C.instruction | D.information |
A.sincerely | B.simply | C.politely | D.unwillingly |
A.overload | B.promote | C.inspire | D.simulate |
“Two centuries ago, Lewis and Clark left St. Louis to explore the new lands acquired in the Louisiana Purchase,” George W. Bush said, announcing his desire for a program to send men and women to Mars. They made that journey in the spirit of discovery. America has ventured forth into space for the same reasons.
Yet there are vital differences between Lewis and Clark’s expedition and a Mars mission. First, they were headed to a place where hundreds of thousands of people were already living. Second, they were certain to discover places and things of immediate value to the new nation. Third, their venture cost next to nothing by today’s standards. A Mars mission may be the single most expensive non-wartime undertaking in U.S. history.
Appealing as the thought of travel to Mars is, it does not mean the journey makes sense, even considering the human calling to explore. And Mars as a destination for people makes absolutely no sense with current technology.
Present systems for getting from Earth’s surface to low-Earth orbit are so fantastically expensive that merely launching the 1,000 tons or so of spacecraft and equipment a Mars mission would require could be accomplished only by cutting health-care benefits, education spending, or other important programs—or by raising taxes. Absent (缺乏)some remarkable discovery, astronauts, geologists, and biologists once on Mars could do little more than analyze rocks and feel awestruck (敬畏的) staring into the sky of another world. Yet rocks can be analyzed by automated probes without risk to human life, and at a tiny portion of the cost of sending people.
It is interesting to note that when President Bush unveiled (公开) his proposal, he listed these recent major achievements of space exploration: pictures of evidence of water on Mars, discovery of more than 100 planets outside our solar system, and study of the soil of Mars. All these accomplishments came from automated probes or automated space telescopes. Bush’s proposal, which calls for reprogramming some of NASA’s present budget into the Mars effort, might actually lead to a reduction in such unmanned science—the one aspect of space exploration that’s working really well.
Rather than spend hundreds of billions of dollars to hurl (投) tons toward Mars using current technology, why not take a decade or two or however much time is required researching new launch systems and advanced propulsion (推进力)? If new launch systems could put weight into orbit affordably, and advanced propulsion could speed up that long, slow transit (运输) to Mars, the dream of stepping onto the red planet might become reality. Mars will still be there when the technology is ready.
1.What do Lewis and Clark’s expedition and a Mars mission have in common?A.Instant value. | B.Human inhabitance. |
C.Venture cost. | D.Exploring spirit. |
A.great achievements have already been made in Mars exploration in America. |
B.American people’s well-being will suffer a lot if it is carried out. |
C.its expense is too huge for the government to afford. |
D.unmanned Mars exploration sounds more practical and economical for the moment. |
A.Going to Mars using current technology is quite sensible. |
B.A Mars mission will in turn promote the development of unmanned program. |
C.Bush’s proposal is based on three recent great achievements of space exploration. |
D.The achievements in space exploration show how well manned science has developed. |
A.Risky as it is, a Mars mission helps maintain America’s position as a technological leader. |
B.A Mars mission is so costly that it may lead to an economic disaster in America. |
C.Someday people may go to Mars but not until it makes technological sense. |
D.A Mars mission is unnecessary since the scientists once there won’t make great discoveries. |
A.So tired was the teacher; that | B.The teacher was so tired; which |
C.Tired as the teacher; that | D.Such was the tired teacher; which |