( D ) The sun is the largest source of light. We know that life on the earth depends on the heat of the sun. But the light of the sun is as necessary to life as its heat. Another important source of light is produced by electric sparks in tubes which has special gases. That is known as indirect light. The light we see directly from the source of light, such as sun, is known as direct light. Laser is a new kind of light source. It possesses a series of remarkable properties, which makes it a better light source in a number of cases. 81. Which is true in the following? A: The light made by electric sparks in tubes with special gases is called direct light. B: Sunlight is colourless. C: Indirect light is sent from the power station and so on. D: Human beings as well as all animals depend on direct light. ( ) 82. Which is false in the following? A:Sunlight is a kind of direct light. B:For man sunlight is a much more useful light than any other light. C:Electric light is more remarkable than laser in research. D:Actually moonlight comes from the sun. ( ) 83. Life on the earth can't live . A: with sunlight B: without sunlight C: with moonlight D: without moonlight ( ) 84. Laser, as you know, . A: has not been widely used. B: has not been researched C: is still unknown D: is less useful than any other light ( ) 85. The word “source means . A: 源 B: 系 C: 种 D: 类 查看更多

 

题目列表(包括答案和解析)

In ancient languages, the seven days of the week were named after the sun, the moon, and the five planets that ancient people knew about (luckily, they only knew about five planets then, or our weeks would be much longer). There is a good reason that in English “Sunday” has the word “sun” in it. Sunday seems to be everyone’s favorite day of the week. It makes sense that it’s named after everyone’s favorite thing in the sky! Do any other weekday names sound like astrological (占星的) words? How about “Monday” and “Moon”, or “Saturday” and “Saturn”?

If you learn French or Spanish, you will see even more planets in the names of the days of the week. These languages are rooted in Latin(拉丁文) and the Latin names match the planet names for all seven days.

English is a strange language. It is very confusing. The days of the week are a perfect example of this confusion. A few are from Latin, and a few are from German. “Tuesday” is named after a German God: Tiw (Tiw’s day). Friday is named after a German Goddess(女神): Freya. English words change spelling, meaning and roots that are based on wars and kings. That’s why English is so hard to learn! Learning the names of the week can be like a history lesson in itself!

46. Which day of the week was named after the moon?

A. Sunday       B. Monday     C. Saturday       D. Tuesday

47. We can tell from the story that “Saturn” is _______.

A. a planet’s name  B. a strange language C. a God’s name  D. a Goddess’ name

48. The underlined words “everyone’s favorite thing” in Paragraph 2 refers to _______.

A. Monday     B. Sunday    C. the moon     D. the sun

49. Which day is from German?  A. Sunday B. Monday  C. Tuesday   D. Saturday

50. The story mainly tells us ________.

A. what the seven days of the week are named after

B. how the English language changes     

C. Why there are seven days in a week 

D. Which day of the week is people’s favorite

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阅读理解

  It was a beautiful spring morning.There were no clouds in the sky, and the sun was warm but not hot.Mr Black saw an old man at the bus stop with a big, strong, black umbrella in his hand.

  Mr Black said to him, “Do you think we are going to have rain today?”

  “No, ”said the old man, “I don't think so.”

  “Then are you carrying the umbrella because the sun is too hot?”

  “No, the sun is not very hot in spring.”

  Mr Black looked at the big umbrella again, and the man said, “I am an old man, and my legs are not very strong.I must have a walking-stick.But people will say, ‘Look!That man is so old.’and I don't like that.When I carry an umbrella in fine weather, people only say, ‘Look at that stupid man.’”

根据文章内容,选择最佳答案.

(1)

This story happened ________.

[  ]

A.

on a spring morning

B.

on a cold day

C.

on a summer evening

D.

in the afternoon

(2)

What was the weather like that day?

[  ]

A.

It was raining.

B.

The sun was too hot.

C.

It was sunny and the sun was warm but not too hot.

D.

It was cloudy.

(3)

Mr Black saw the old man ________.

[  ]

A.

in the park

B.

at the bus stop

C.

on the hill

D.

in the street

(4)

The old man had ________ in his hand.

[  ]

A.

an old walking-stick

B.

a brush

C.

a book

D.

an umbrella

(5)

Which of the following statements is right?

[  ]

A.

The old man carried an umbrella instead of a walking-stick.

B.

The old man borrowed an umbrella from Mr Black.

C.

Mr Black and the old man were good friends.

D.

The old man thought it was going to rain.

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Tom is in Grade Three now. He goes to school from Monday to Friday. After school, he must do some homework. He helps his parents on the farm on Saturdays and Sundays. So he doesn’t have any time to play football in the daytime(白天). He often plays with his friends in the moon(月亮).

It’s five in the afternoon. School is over(结束). Tom goes home and cooks for his family. After dinner he meets his friend David near his house and asks him to play football. The boy looks at the sky(天空) and sees the moon. Then he asks, “ Which is more useful(更有用), the sun or the moon?”

“ I think the moon is.” says Tom. “ We need light(光线) in the evening, but we see not the sun, but the moon!”

(  ) 56. Tom’s parents are ________.

   A. workers   B. teachers   C. farmers

(  ) 57. Tom must work on the farm ______days in a week.

   A. two     B. three     C. four   

(  ) 58. Tom is busy(忙碌的) in the daytime, so ______.

A. he does some homework in the evening

B. he does some washing and cleaning in the evening

C. he plays football with his friends in the moon

(  ) 59. Tom meets David ____ today.

   A. in the evening  B. in the morning  C. in the afternoon 

(  ) 60. Tom only likes ______.

   A. the sun    B. the moon     C. Saturdays 

 

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阅读理解

     We know that there is air around the earth. We will find there is less air or no air if we go far enough away from the earth. But when    planes fly they need air to lift their wings (机翼). But planes can't fly very high because the air gets thinner and thinner when    they go higher and higher. Perhaps we can answer some of the questions now. What is the sky? Nothing, where is it? It is all    around the earth. The sky is space (空间). In this space there is nothing but the sun, the moon, the earth and all the stars.

根据短文内容,选择最恰当的答案。

  1. The sky is ______.            

[  ]

   A. air             B. the earth  

   C. the whole world       D. space

  2. There is ______ if we go far enough away from the earth.

[  ]

   A. much air          B. more and more air

   C. less air or no air     D. going to be air

  3. Planes can't fly very high because ______.

[  ]

   A. the air gets thinner and thinner

   B. there is much air in the sky

   C. they need air to lift their wings

   D. planes are heavy

  4. Where is the sky? ______.        

[  ]

   A. On the moon         B. It is all around the earth

   C. In planes         D. In the sun

  5. In the sky there is ______.        

[  ]

   A. air everywhere

   B. the earth

   C. nothing

   D. the sun, the moon, the earth and all the stars

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补全对话

阅读下面的对话,根据对话内容补上所缺的句子,使对话意思完整。

Pat Alex(P)comes by to see Li Hong(L).They talk about the party last night and

about the weather.

P:Hi, Li Hong.

L:Hi, Pat,  1  ?

P:Because it was so cold and rainy.

L:  2  !It was a really good party, Hey, why don't we go for a walk this afternoon, Pat?

P:Go for a walk? But it's so cold out.

L:Cold out?  3  ?

P:About 13℃.

L:13℃?  4  .Just wait until winter.

P:Why?

L:Well…it snows a lot and sometimes it's very cold, Last winter it was 7 below zeroFor three weeks, And it was windy, too.

P:That sounds terrible!

L:  5  .The sun was out almost every day.

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