题目内容
Light travels at a speed which is about a million times faster than the speed of sound. In a second, light travels about 300,000km, but sound travels only 340m. You can get some ideas of this difference by watching the start of a race. If you stand some distance away from the starter, you can see smoke come from his gun before the sound reaches your ears.
This great speed of light produces some strange facts. Sunlight takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light rays left the moon 1.3 seconds before they reach you. The nearest star is so far away that the light which you can see from it tonight started to travel towards you four years ago at a speed of nearly 20 million km, per minute. In some cases, the light from one of tonight's stars started on its journey to you before you were born.
Thus, if we want to be honest, we can not say,
“the stars are shining tonight.”We have to say,“The stars look pretty. They were shining four years ago but their light has only just reached the earth.”阅读短文，选择最佳答案．
(1) The speed of light is ________ than the speed of sound.
[ ]
A
．a million times slowerB
．about millions of times fasterC
．about a million times faster(2) If you stand 200 meters away from a man who is firing a gun to start a race, you will find out that ________.
[ ]
A
．you can hear the gun before you see the smokeB
．sound doesn't travel as fast as lightC
．the sound of gun will reach you before the man fires his gun(3) Sunlight ________ to the earth than the light of the moon.
[ ]
A
．has to travel a greater distanceB
．moves less quicklyC
．is less powerful(4) The scientific way of saying
“the star are shining tonight”should be ________.[ ]
A
．the stars have been shining all the timeB
．the stars seen tonight will be shining four years laterC
．the stars were shining long ago but are seen tonight(5) The light of the nearest star you see tonight has been ________ for four years.
[ ]
|
A ．away from the star |
B ．on the moon |
C ．away from the sun |
轻松夺冠全能掌控卷系列答案阅读下面的短文，掌握其大意，然后从短文后各题所给的A、B、C、D四个选项中，选择最佳选项。
Joe lost his arms in an accident that killed his father. Since then, he has had to depend on the 36 of his younger sister Ella. In order to take care of him, Ella became his shadow, never leaving him 37 for years. Except for writing with his toes, he was completely unable to do anything in his life.
As they grew up together, they had their share of 38 and they would often quarrel. Then one day, Ella wanted to separate from Joe, living 39 own life. So Joe was heart-broken and didn't know what to do.
A 40 misfortune (不幸) struck Rosa, too. One night her mother, who suffered(受苦) from mental illness, 41 . So her father went out looking for her mother. She tried to cook meals for her parents, only to overturn the kerosene light on the stove, resulting in a fire which took her hands away.
Though her elder sister Susan showed her willingness to take care of her, Rosa decided to be 42 independent. And most of all she learned to do things on her own. Once she wrote the following in her composition: “I’m lucky. Though I lost my arms, I still have legs. Though my wings are broken, my heart can still 43 .”
One day，Joe and Rosa were both invited to a television interview program. Joe told the TV host about his 44 future at being left on his own, while Rosa was full of hope for her life. They both were asked to write something on a piece of paper with their toes. Joe wrote：My younger sister's arms are my arms; 45 Rosa wrote: Broken wings, flying heart.
They had both stood the same sufferings, but their different 46 determined(决定) the nature of their lives. It is true that life is unpredictable. How you deal with misfortune is the true test of your character. If you choose only to complain and run away from the suffering，it will always 47 you wherever you go. But if you decide to be strong, the hardship will turn out to be a fortune on which new hopes will arise.
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The Bermuda Triangle(百慕大三角)is in the Atlantic Ocean, near Florida in the USA. During the past 60 years, more than 1,000 seamen in ships and pilots in planes have lost their lives. It is known as “The Triangle of Death”for its strange seawater and sudden storms. What’s the strangest is the light of the seawater, which looks so bright that it can be seen even from an outer spaceship.
At 2:00p.m. on Dec. 5, 1945, five planes took off in fine weather from the airport of Florida, on a training task. Two hours later, the leader in the sky radioed that he was “completely lost”. Then there was silence. Another plane was sent to look for them and also disappeared.
One of the largest ship that had disappeared in the triangle was an American coal ship, 500meters long. The weather was good, and there were no messages for help before it was “gone”. No broken ships or dead bodies have been found so far.
No one is able to tell how all these accidents have happened. A group of Japanese scientists were there to see what it was really like in 1995, but nothing has been heard of them ever since.
【小题1】 What is the passage mainly about?
| A．How the Bermuda Triangle ate up the planes and ships. |
| B．Why many of the planes and ships have disappeared. |
| C．Strange accidents happened in the Bermuda Triangle, no one can tell why |
| D．When the Bermuda Triangle was formed very strangely. |
| A．Five. | B．Six. | C．Seven. | D．Eight. |
| A．Wrote sound message using a radio. |
| B．Listened to sound message using a radio. |
| C．Sent sound message using a radio. |
| D．Received sound message using a radio. |
| A．He met with terrible weather. |
| B．He was losing the right direction. |
| C．Airport didn’t give him an answer. |
| D．The reasons are still unknown. |
| A．They have also disappeared very strangely. |
| B．They have not heard of anything important. |
| C．They are still working hard in Bermuda. |
| D．They’ve come back, knowing nothing about it. |
