People know that some animals, particularly birds, can be trained to carry messages for them. From 3,000

B．C to now, pigeons have been used as “postmen” either in war or in peace.

　　In 1870, when the Germans surrounded Paris, the city was cut off from all the usual means of communication. The people tried many different ways of sending news. One way was to use pigeons, and the little “postmen” flew even faster. In four months about 156,000 letters were sent by them.

　　Now pigeons are still used. This is because sometimes only the little pigeon can carry the message where it is difficult for man to go. That is why pigeons are called “postmen” with feathers.

(1) What is a pigeon?

[　　]

(2) Which of the following is true?

[　　]

A．Pigeons are our daily postmen.

B．Pigeons can fly as fast as a man-made satellite.

C．Pigeons can not do something special for us.

D．Pigeons can do something special for us.

(3) People in Paris used pigeons to send letters because ________.

[　　]

A．they could not send them themselves

B．they could not fly as fast as pigeons

C．they knew pigeons could fly faster than hawks

D．they liked pigeons better than any other animal

(4) How many letters did pigeons send per month according to the text?

[　　]

(5) People call pigeons “postmen” with feathers because ________.

[　　]

A．they are really very good postmen

B．they are birds but can do the job well as postmen

C．they are postmen who can fly and have feathers

D．they have feathers just like postmen

　　George was a quiet, serious young man. He had been studying particularly(特别地) hard one year, and when he passed his examinations, his friend Jim went to give him his congratulations and then had an earnest conversation with him.

　　“You've never been to a dance, George, ” he said. “It's boring (烦躁)always studying and never enjoying oneself. Come out with me this evening. ”

　　“Perhaps you're right, Jim, ” replied George after a moment's hesitation(犹豫).

　　So they went to a dance and had an enjoyable time. But George drank more than he was used to, and by midnight Jim had become worried about him, so he said, “Now we'll walk home in the cool air. ”

　　On their way home, they came to a bridge, and George looked down at the river below attentively (集中精力地) . The stars were reflected(反射) in its smooth surface.

　　“What are those lights down there?” George inquired.

　　“They're the stars, George, ” Jim replied.

　　“The stars?” George said. “ Well, then, how did I get up here?”

1．Why did Jim think that George needed a change?

2．What sort of change did he want him to have?

3．Why did Jim feel worried?

4．Why did the stars seem to be below George?

5．Why was George puzzled?