题目列表(包括答案和解析)
Unless we spend money spotting and preventing asteroids(小行星) now, one might crash into Early and destroy life as we know it, say some scientists.
Asteroids are bigger versions of the meteoroids(流星) that race across the night sky. Most orbit the sun far from Earth and don’t threaten us. But there are also thousands of asteroids whose orbits put them on a collision course with Earth.
Buy $50 million worth of new telescopes right now. Then spend $10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say, we’ll have a way to change its course.
Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn’t be cheap. Is is worth it? Two things experts consider when judging any risk are: (1)How likely the event is; and (2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500 000 years. Sounds pretty rare-but if one did fall, it would be the end of the world. “If we don’t take care of these asteroids, they’ll take care of us,”says one scientist. “It’s that simple.”
The cure, though, might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(世界末日) rocks than from a great nuclear fleet set against it,” said a New York Times article.
9.What does the passage say about asteroids and meteoroids?
A.They are heavenly bodies different in composition.
B.They are heavenly bodies similar in nature.
C.There are more asteroids than meteoroids.
D.Asteroids are more mysterious than meteoroids.
10.What do scientists say about the collision of an asteroid with Earth?
A.It is very unlikely but the danger exists.
B.Such a collision might occur once every 25 years.
C.Coilisions of smaller asteroids with Earth occur more often than expected.
D.lt’s still too early to say whether such a collision might occur.
11.What do people think of the suggestion of using nuclear weapons to alter the course of asteroids?
A.It sounds practical but it may not solve the problem.
B.It may create more problems than it might slove.
C.It is a waste of money because a collision of asteroids with Earth is very unlikely.
D.Further research should be done before it is proved applicable.
12.We can conclude from the passage that .
A.while pushing asteroids off course nuclear weapons would destroy the world
B.asteroids racing across the night sky are likely to hit Earth in the near future
C.the worry about asteroids can be left to future generations since it is unlike to happen in our lifetime.
D.workable solutions still have to be found to prevent a collision of asteroids with Earth
Unless we spend money to spot and prevent asteroids now,one might crash into Earth and destroy life as we know it,say some scientists.
Asteroids are bigger versions of the meteoroids(流星)that race across the night sky. Most orbit the sun far from Earth and don't threaten us. But there are also thousands whose orbits put them on a collision course with Earth.
Buy $ 50 million worth of new telescopes right now. Then spend $ 10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one,the scientists say,we'll have a way to change its course.
Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn't be cheap. Is it worth it? Two things experts consider when judging any risk are: 1) How likely the event is; and 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500,000 years. Sounds pretty rare-but if one did fall,it would be the end of the world. “If we don't take care of these big asteroids,they'll take care of us,” says one scientist. “It's that simple.”
The cure,though,might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(毁灭性的) rocks than from a great nuclear fleet set against them,” said a New York Times article.
【小题1】What does the passage say about asteroids and meteoroids?
A.They are heavenly bodies different in composition. |
B.They are heavenly bodies similar in nature. |
C.There are more asteroids than meteoroids. |
D.Asteroids are more mysterious than meteoroids. |
A.It is very unlikely but the danger exists. |
B.Such a collision might occur once every 25 years. |
C.Collisions of smaller asteroids with Earth occur more often than expected. |
D.It's still too early to say whether such a collision might occur. |
A.It sounds practical but it may not solve the problem. |
B.It may create more problems than it might solve. |
C.It is a waste of money because a collision of asteroids with Earth is very unlikely. |
D.Further research should be done before it is proved applicable. |
A.while pushing asteroids off course nuclear weapons would destroy the world |
B.asteroids racing across the night sky are likely to hit Earth in the near future |
C.the worry about asteroids can be left to future generations since it is unlikely to happen in our lifetime |
D.workable solutions still have to be found to prevent a collision of asteroids with Earth. |
A.Optimistic. | B.Critical. | C.Objective. | D.Subjective. |
Unless we spend money to spot and prevent asteroids(小行星) now, one might crash into Earth and destroy life as we know it , say some scientists.
Asteroids are bigger versions of the meteoroids(流星) that race across the night sky. Most orbit the sun far from Earth and don’t threaten us. But there are also thousands of asteroids whose orbits put them on a collision course with Earth.
Buy $ 50 million worth of new telescopes right now, Then spend $ 10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say , we’ll have a way to change its course.
Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn’t be cheap.
Is it worth it? Two things experts consider when judging any risk are: 1) How likely the event is; 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500 000 years. Sounds pretty rare-but if one did fall, it would be the end of the world. “ If we don’t take care of these big asteroids, they’ll take care of us,” says one scientist. “ It’s that simple.”
The cure, though , might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(毁灭性的) rocks than from a great nuclear fleet set against them,” said a New York Times article.
1. What does the passage say about asteroids and meteoroids? _________.
A. They are heavenly bodies different in composition
B. They are heavenly bodies similar in nature
C. These are more asteroids than meteoroids
D. Asteroids are more mysterious than meteoroids
2. What do scientists say about the collision of an asteroid with Earth? _______.
A It is unlikely but the danger exists
B. Such a collision might occur once every 25 years
C. Collision of smaller asteroids with Earth occur more often than expected
D. It’s still too early to say whether such a collision might occur
3. What do people think of the suggestion of using nuclear weapons to alter the course of asteroids? _______.
A. It sounds practical but it may not solve the problem
B. It may create more problems than it might solve
C. It is a waste of money because a collision of asteroids with Earth is very unlikely
D. Further research should be done before it is proved applicable
4. We can conclude from the passage that________.
A. while pushing asteroids off course nuclear weapons would destroy the world
B. asteroids racing across the night sky are likely to hit Earth in the near future
C. the worry about asteroids can be left to future generations since it is unlikely to happen in our lifetime
D. workable solutions still have to be found to prevent a collision of asteroids with Earth
While attending a conference, I returned to my hotel room late one rainy evening.The overhead light outside my door was 36 and I had difficulty finding the keyhole.When I finally 37 to open the door, I 38 around the wall for a light switch.I found a 39 where a switch was once installed… but no switch.
No discouraged easily, I remembered seeing a 40 by the bed when I put away my luggage 41 in the day.I found the bed in the dark and felt around until I found the lamp, but when I switched it on, 42 happened! Now what?
Though I knew that it was dark outside my window 43 the outdoor light was burned out, I thought that 44 if I opened the curtains I might be able to use the light from the 45 to find another lamp.So I 46 my way slowly across the room to the curtains and… no draw-string!
I finally stumbled(跌跌撞撞) around until I found a desk lamp that actually 47 ! That evening I discovered in a whole new way just how dark the world can be and how necessary 48 is.
But even more necessary than 49 light is the light that shines from people — the light of love, sympathy and 50 .Because, for many people, the world is a dark and 51 place.
It is the shining that is important, for someone today just may be stumbling in discouragement or fear and in 52 of some light.
So let your light shine.Whatever light you 53 may be a beacon(灯塔)of hope and encouragement in someone’s darkness.And if you feel that your light is 54 a candle in a forest, remember this — there isn’t enough darkness in the world to 55 the light of one small candle.
A.burning B.broken C.shining D.smooth
A.managed B.attempted C.succeeded D.meant
A.touched B.turned C.felt D.looked
A.light B.plate C.lamp D.signal
A.lamp B.switch C.desk D.window
A.later B.earlier C.sooner D.first
A.something B.everything C.nothing D.anything
A.when B.unless C.since D.although
A.certainly B.surely C.absolutely D.perhaps
A.star B.street C.room D.shop
A.forced B.struggled C.made D.pushed
A.worked B.failed C.did D.closed
A.love B.thinking C.dream D.light
A.spiritual B.physical C.mental D.inner
A.faith B.soul C.help D.attention
A.mixed B.fancy C.lonely D.complicated
A.lack B.need C.favor D.face
A.devote B.receive C.offer D.throw
A.only B.even C.ever D.much
A.give out B.leave out C.take out D.put out
Tom is a worker in my factory and he is a little bit dirty.I have been taking 1of him for years and years, he always wears an old red hat and carries a 2bag.He usually spends his break time and his lunchtime by walking around to 3the unused tins around.
Once I saw him by his 4, with a lot of rubbish bags, which were full of aluminum(铝) tins.He threw them into the back of his car and then 5the car.Being very curious, I got into my car to 6him.He drove 7he reached the entrance to a wide, empty parking area, but did nothing more.
Today, I was 8one of the broken machines during lunchtime when this“tin man”came along with his bag.As usual, he 9the tins around the place.My 10, who was worried about how the 11caused by the machine would affect production, was standing there watching me.
When I finished my job, my manager asked the “tin man” about what he would 12the tin that he had collected.I had 13even though about asking this kind of question, 14I had always thought that this “tin man” would sell the 15to the recycling place
16,this “tin man” answered, “I will give them to my neighbor, 17has epilepsy(癫痫病) and is unable to work.” I was 18to hear this, and I asked him, “You 19you are collecting all those tins just to help your neighbor?”
“I know it doesn’t help very much,” he said, “ 20I try my best to help him.” It was the most beautiful moment in my life and made me feel very humble(卑鄙的).
1.A.hold B.care C.charge D.notice
2.A.plastic B.rubbish C.paper D.metal
3.A.collect B.find C.hide D.spread
4.A.house B.store C.machine D.car
5.A.got out of B.broke up C.jumped into D.settled down
6.A.follow B.block C.inspect D.catch
7.A.since B.until C.when D.after
8.A.decorating B.performing C.repairing D.selecting
9.A.turned up B.put up C.set up D.picked up
10.A.manager B.workmate C.neighbor D.friend
11.A.power B.delay C.signal D.harm
12.A.do with B.deal with C.go with D.put up with
13.A.seldom B.always C.nearly D.never
14.A.unless B.because C.though D.if
15.A.machine B.cars C.tins D.bags
16.A.Certainly B.Briefly C.Surprisingly D.Fortunately
17.A.who B.whom C.which D.that
18.A.shocked B.interested C.satisfied D.concerned
19.A.announce B.mean C.say D.declare
20.A.instead B.however C.but D.and
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