What is the sky？ Where is it？ How bright is it？ What lies above it？ These questions are difficult to answer, aren’t they？

　　Is the sky blue？ The sky has no color. 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 because the air gets thinner when they go up higher. If we go up about 1,200 kilometers from the earth, we’ll find no air there.

　　When we talk about the sky, we usually mean the atmosphere around the earth. It is like a very thick “cover” over the earth and keeps it warm. Without the “cover”, the earth would be a very cold place and nothing could live on it.

　　Looking up above us, you will see the blue sky with white clouds. It is usually light blue, but the sky would be dark blue if you go to the top of the highest mountains. And you will see fewer clouds between you and the sun.

　　And if you sit in a spaceship high above the earth, there is no air at all. The sky would be so dark that its color would be black.

　　Sometimes the sky doesn’t look blue. When the sun rises and falls, you will see red, orange, and other colors in the sky. These are the most beautiful moments of the day.

　　Now you may understand that we see colors because the air scatters (散射) the sunlight. Light travels through the air. Without air, there would be no light and no colors.

1.Planes can’t fly very high because ____________.

A．there is air around the world

B．the air gets thinner when they go up higher

C．it’s warmer in the sky

D．the air gets thicker when they go up higher

2.We can see colors of the sky because ____________.

A．the sun rises and falls every day

B．the sky has lots of colors

C．the air scatters the sunlight

D．the sunlight has many colors

3.Which of the following is TRUE？

A．There is little air without light and colors in the sky.

B．The sky will look red, orange and other colors at noon.

C．The sky has only one color when the sun rises and falls.

D．The sky is dark blue if you go to the top of the highest mountains.

　The ladies club(妇女俱乐部) always   l  　a meeting   2  　Friday afternoon and someone came to talk to them about   3  . After that, they had tea and asked　  4  .

    One Friday a man came and talked to the club about the food problem. “There's not 5 food in the world for everyone,” he said. “More than half of the people in the world are hungry. And when they have   6  　food, they have more babies,   7  　they never   8   being hungry. Somewhere in the world, a woman is having a baby every minute day and night. What are you going to do about it?” He   9  　for a few seconds. Then one of the ladies said, “Well, why not   10   that woman and stop her?”

1.A. held 　　　 B. made 　　　 C. took 　　　 D. left

2.A. in 　　　　 B. at 　　　　 C. on 　　　　 D. for

3.A. something important             B. everything important

C. nothing important               D. anything important

4.A. problems　　 B. questions C. the man　　 D. the ladies

5.A. good　　　　 B. clean　　　 C. enough　　　D. pleasant

6.A. better 　　　B. more 　　　 C. less 　　　 D. fewer

7.A. but 　　　　 B. since　　　 C. as 　　　　 D. so

8.A. stop 　　　　B. enjoy 　　　C. like 　　　 D. keep

9.A. waited　　　 B. asked　　　 C. looked　　　D. played

10.A. see 　　　　B. look 　　　 C. find 　　　 D. watch

Do you know how to write an English letter and envelope?
When we write a letter in Chinese, we always put the date at the end of the letter. But it is different in English. We have to put it on the top of the right corner. And above the date, we also write the number of our house and the names of our street, city and country. To begin the letter, we always use the word like "Dear sir",　 "Dear Mr./Miss./Ms.…". To end the letter, we usually use words like "Yours”, “Yours ever" or "Truly yours".
Now read the following envelope, please.
【小题1】"We have to put it on the top of the right corner." The word "it" here means_____.
A. the date　　　　　　B. the letter　　　　 C. the passage
【小题2】To what country will the letter be sent?
A. P.R. China　　　　　B. China　　　　　 C. The United States
【小题3】Who writes this letter?
A. Miss Susan Brown　　B. Zhang  Hua　　　C. You
【小题4】From the passage, we know when we write an English letter, we should
put down our address _____.
A. at the end of the letter on the right
B. at the end of the letter on the left
C. at the top of the letter on the left
【小题5】How do you begin your letter if you write to John Smith?
A. John Smith　　　 B. Mr. John　　 　C. Dear Mr. Smith

根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。

The panda is one of the most popular 　1.　 in the world. A panda can grow up to 1.5 meters long and weigh up to 160kg. People think the panda is very　2.　. So it is not surprising that the WWF（世界自然基金会）chose the panda as its symbol. The WWF tells people about animals that are in 　3.　and raises money to save them. The panda only 　4.　 in the wild in China. In the early 1980s, there were only 1,000 left in the wild. The main reason 　5.　 pandas are endangered(濒临灭绝的) is that the area where pandas can live has become smaller.