What is the sky? How high is it? What color is it? What birds can live above it?These questions are difficult to answer, aren't they? In fact, the sky has no color. Then why does the sky look blue?
We know that there is air around the world. When planes fly, they need air to lift their wings.Planes can't fly very high. That is because the air gets thinner when they go higher. The same will happen to us if we go high enough. If we go up about 1.200 kilometers from the earth. we'll find no air there. Some birds can fly into the sky as high as a plane, but they cannot fly or live without air.
Looking up above us, you will see the blue sky with white clouds. It is usually light blue.The color would be bluer when you see on the top of a high mountain, And you will see fewer clouds in the sky between you and the sun. Sometimes the sky doesn't look blue. When the sun rises and falls, you will see red, orange, and other colors in the sky, Such are the most beautiful moments of the day.
Who can see the colors of the sky high above the earth? The astronauts! They can see those beautiful colors of the sky from the outer space. However, before flying into the outer space, they sit in a spaceship high above the earth, and there is no air at all. The sky would be that dark and its color would be black.
Now you may understand that we see colors because the air scatters(使散射) the sunlight.Light travels through the air. Without air, there would be no colors.
(1)Planes can't fly as high as possible because .
A. |
the sky is blue |
B. |
the wings are heavier |
C. |
the air becomes thinner |
D. |
the sky has no air |
(2)When you stand on the top of a high mountain, you will see .
A. |
more air |
B. |
fewer clouds |
C. |
more colors |
D. |
redder skies |
(3)In Suining, we might see many colors in the sky at about during the day in summer.
A. |
7:00 pm |
B. |
11: 00 pm |
C. |
1:00 am |
D. |
3: 00 am |
(4)The sky changes colors because .
A. |
the sunlight has colors |
B. |
the air scatters the sunlight |
C. |
it's colorful itself |
D. |
the world Is colorful |
(5)Which is the best title(标题)?
A. |
Why does the sky look blue? |
B. |
Why can't planes fly very high? |
C. |
Why does the sky change colors? |
D. |
Why can the astronauts see the colors of the sky? |
A man lives in a very tall building. He has a lot of money and he has a parrot at home. It’s a clever bird. Every morning, after the man gets up, the bird says “Hello”. When the man comes back from his work, the bird says “Is that you? Come here, I can see you.” One evening, when the man was asleep, a thief came into his home by climbing up the building. When he found some money and began to leave the house by climbing down through the windows again, he heard a voice in the dark.
“Hello! Is that you? Come here. I can see you.” The thief was so frightened(害怕的) that he fell down from the windows.A parrot is a kind of ________ .
A.thing | B.bird | C.man | D.machine |
When did the thief come?
A.In the afternoon |
B.In the morning |
C.When the man wasn’t at home |
D.When the man was asleep |
What do you think of the thief at last?
A.He talked with the parrot. |
B.He stayed in the man’s house |
C.He climbed down the building |
D.He died. |
Some students’ favorite sports |
PE is difficult but I like it very much. I’m in our city sports club. The members in the club are all young, between 6 and 13 years old. I go to the club every Sunday. I do the sports very hard. I want to be an Olympic champion. (--Sara) |
Running! Lots of people don’t think it is exciting. However, I like running very much. I run every morning. Running isn’t expensive so anyone can run. Running is a good sport. Let’s run together! (--Alex) |
Basketball is part of my life. I play basketball with my classmates on Saturday mornings. I watch basketball games on TV with my brother on Saturday evenings. I hope I can be a famous basketball player one day. My sister Lisa doesn’t like watching that. She likes tennis. (--Frank) |
Sara may be _____ years old.
A.4 | B.5 | C.12 | D.14 |
_________ is cheap and anyone can do it.
A.Swimming | B.Basketball | C.Tennis | D.Running |
Frank usually _____________ on Saturday evenings.
A.plays basketball |
B.watches basketball games on TV |
C.plays tennis |
D.watches soccer games on TV |
Have you ever asked your relatives or friends if there is Wi-Fi in their houses? Have you ever searched for Wi-Fi when you are at restaurants or hotels. The answer will probably be “Yes”. Most of us want Wi-Fi everywhere as if we couldn’t live without it. But we can only use free Wi-Fi in some public places. We still have to spend some money accessing(连接) the Internet at most time. Here comes a piece of good news.
A rich, powerful organization in the USA called MDIF has decided to change the age of online computing(计算) completely by giving free Wi-Fi to every person on the earth. They will send up hundreds of satellites(卫星) into low Earth orbit(轨道) next year.
This is because they have made a survey and found that only 60% of the world’s population have been able to get information on the Internet. And this is also because many countries can’t offer people the necessary infrastructure(基础设施) to access the web.
We can expect to use free Wi-Fi everywhere in the near future.Do we have to spend some money accessing(连接) the Internet at most time?
A. Yes. B. No C. We don’t know.What is MDIF?
A. A sport meeting
B. A rich, powerful organization in the USA
C. A organization for helping homeless peopleHow many people have been able to get information on the Internet?
A. 10% B. 80% C.60%Which of the following is TRUE according to the passage?
A. MDIF will send up hundreds of satellites into low Earth orbit next year.
B.Many countries can offer people the necessary infrastructure to access the web.
C.We can’t expect to use free Wi-Fi everywhere in the near future.What is the best title of the passage?
A. The Internet
B. The great invention
C. Free Wi-Fi everywhere in the future
Thanksgiving Day was near. The first grade teacher gave her class some fun homework-- to draw a picture of something for which they were thankful.
Most of the class drew a turkey or other traditional things. But Douglas drew a different kind of picture. He drew a hand. Just an empty hand.
Douglas was a different boy. He was poor and unhappy. As other children played, Douglas was likely to stand close by the teacher’s side.
His classmates were surprised at his picture. One child guessed it was the hand of a farmer, because farmers raise turkeys. Others guessed it was the hand of God, for God feeds us.
The teacher asked him whose hand it was. The little boy said in a low voice, “It’s yours.”
She remembered the times she had taken his hand and walked with him here and there. She often said, “Take my hand, Douglas, we’ll go outside.” Or, “Let me show you how to hold your pencil.” Or, “Let’s do this together.” Douglas was most thankful for his teacher’s hand.
Tears came into the teacher’s eyes.The underlined word “raise” , means”______”
A. 种 B. 饲养 C. 做饭Douglas drew a hand of _______.
A. a farmer B. god C. the teacherWhen other children played, Douglas _______
A. played with other children
B. sat in the classroom quietly
C. stood quietly by the teacher’s side.When the teacher knew the truth, she felt ____
A. sad B. worried C. moved Douglas drew the picture of a hand because _______
A. Douglas only liked drawing the hand.
B. the teacher asked the students to draw a hand.
C. Douglas was most thankful for his teacher’s hand.
When you want to go shopping,decide how much money you can spend for new clothes.Think about the kind of clothes you really need.Then look for those clothes on sale.
There are labels inside all new clothes.The labels tell you how to take care of your clothes.The label for a shirt may tell you to wash it in warm water.A sweater label may tell you to wash by washing in cold water.The label on a coat may say “dry clean only.” Washing may ruin(损坏) this coat.If you do as the directions say on the label,you can keep your clothes looking their best.Many clothes today must be dry cleaned.Dry cleaning is expensive.When buying new clothes,check to see if they will need to be dry cleaned.You will save money if you buy clothes that can be washed.
You can save money if you buy clothes that are well made.Well-made clothes last longer.They look good even after they have been washed many times.Clothes that cost more money are not always better made.They do not always fit better.Sometime less expensive clothes look and fit better than more expensive clothes.If you want to save money you can buy clothes that_____.
A.don't fit you | B.don't last long |
C.need to be dry cleaned | D.can be washed |
The label inside the clothes tells you______.
A.how to keep them looking their best |
B.how to save money |
C.whether they fit you or not |
D.where to get them dry cleaned |
The first thing for you to do before you buy clothes is___.
A.to look for well-made clothes |
B.to see how much money you can pay |
C.to know how to wash them |
D.to read the labels inside them |
We learn from the reading that cheaper clothes______.
A.are always worse made |
B.must be dry cleaned |
C.can not be washed |
D.can sometimes fit you better |
The best title(标题) for the reading should be______.
A.Buying Less Expensive Clothes |
B.Taking Enough Money When Shopping |
C.Being a Clever Clothes Shopper |
D.Choosing the Labels inside New Clothes |