The most important use of drifting (漂流) bottles is to find ocean currents. When the position and direction of currents are known, ships can use the forward movement of a current or stay away from currents that would carry them off their course. Benjamin Franklin was one of the first to use bottles in the study of currents. He wondered why British mall ships needed a week or two longer than U.S. ships needed in order to cross the Atlantic Ocean. Franklin thought the Gulf Stream (墨西哥湾流) might explain this difference.

Franklin talked with captains of U.S. ships. He found that they knew each turn of the Gulf Stream. They used the current in every possible way. From his talks with the captains. Franklin made his first map of the Gulf Stream. Then he checked his map by using sealed (密封的) bottles. The map that he finally made is still used, with only a few changes, today. 

Why are drifting bottles used?

A. To determine the position of a ship                                  

B. To carry message across the ocean

C. To predict the direction of a ship.                                

D. To find the direction of a current

What led Franklin to talk with U.S. captains?

A. U.S. ships were longer than British ones.

B. British ships could sail the Atlantic faster than U.S. ones.

C. U.S captains knew more about maps.

D. U.S. ships could sail the Atlantic faster than U.S. ones.

What did Franklin make after his talks with U.S. captains?              

A. A map of the Atlantic Ocean.     B. A map of the Gulf Stream..

C. A map of ocean currents.         D. A map of his first voyage.

What did Franklin do in order to make an exact map?

A. He compared his own map with other maps                               

B. He talked with many U.S. captains.

C. Both B and C.                           

D. He used drifting bottles to check his map.

One day while shopping in a small town in southern California，it was my misfortune to be approached by a clerk whose personality conflicted with mine. He seemed most unfriendly and not at all concerned about my intended purchase. I bought nothing，and marched angrily out of the store. My hostility（敌意） toward that clerk increased with each step.
On the outside，standing by the road，was a dark­skinned young man in his early twenties. His expressive brown eyes met and held mine，and in the next instant a beautiful, dazzling smile covered his face. I gave way immediately. The magnetic（磁力的） power of that smile dissolved all bitterness within me，and I found the muscles in my own face happily responding（回应）.
“Beautiful day，isn't it？”I remarked，in passing. Then，I turned back.“I really owe you a debt of gratitude，”I said softly.
His smile deepened, but he made no attempt to answer．A Mexican woman and two men were standing nearby．The woman stepped forward and volunteered, "Sir, but he doesn't speak English．Do you want me to tell him something?" In that moment I felt transformed（改变）．The young man's smile had made a big person of me．My friendliness and good will toward all mankind stood ten feet tall．
"Thank you?" The woman seemed slightly puzzled．
I gave her arm a friendly pat as I turned to leave．"Just tell him that," I insisted．"He'll understand．I am sure !"
Oh, what a smile can do! Although I have never seen that young man again, I shall never forget the lesson he taught me that morning．From that day on, I became smile-conscious, and I practice the art anywhere and everywhere, with everybody．
【小题1】Why did the author leave the store angrily?

A．The clerk treated him unkindly．	B．He couldn't buy what he wanted．
C．The clerk didn't speak English．	D．The store's goods were too dear．

【小题2】By saying "I felt the muscles（肌肉） in my own face happily responding" （in Paragraph 2）, the author means __.

A．he was still angry	B．he did not want to smile
C．he would thank the young man	D．he smiled back at the young man

【小题3】The author asked the woman to say "Thank you!" to the young man because the young man_____.

A．had helped the author before	B．taught the author how to smile
C．was a kind employee of the store	D．taught the author a valuable lesson

【小题4】In the passage, the author seems to suggest that we should __   ___.

A．be generous to strangers	B．practice smiling every day
C．smile at other people	D．help people in trouble

The most important use of drifting (漂流) bottles is to find ocean currents. When the position and direction of currents are known, ships can use the forward movement of a current or stay away from currents that would carry them off their course. Benjamin Franklin was one of the first to use bottles in the study of currents. He wondered why British mall ships needed a week or two longer than U.S. ships needed in order to cross the Atlantic Ocean. Franklin thought the Gulf Stream (墨西哥湾流) might explain this difference.
Franklin talked with captains of U.S. ships. He found that they knew each turn of the Gulf Stream. They used the current in every possible way. From his talks with the captains. Franklin made his first map of the Gulf Stream. Then he checked his map by using sealed (密封的) bottles. The map that he finally made is still used, with only a few changes, today. 
【小题1】 Why are drifting bottles used?

A．To determine the position of a ship

B．To carry message across the ocean

C．To predict the direction of a ship.

D．To find the direction of a current

【小题2】What led Franklin to talk with U.S. captains?

A．U.S. ships were longer than British ones.

B．British ships could sail the Atlantic faster than U.S. ones.

C．U.S captains knew more about maps.

D．U.S. ships could sail the Atlantic faster than U.S. ones.

【小题3】What did Franklin make after his talks with U.S. captains?

A．A map of the Atlantic Ocean.	B．A map of the Gulf Stream..
C．A map of ocean currents.	D．A map of his first voyage.

【小题4】What did Franklin do in order to make an exact map?
A. He compared his own map with other maps
B. He talked with many U.S. captains.
C. Both B and C.
D. He used drifting bottles to check his map.

The bar-tailed godwit(斑尾鹬) has just broken its own record for the world’s longest non-stop flight, including humans in planes, according to a report made by Lund University Press. The bird can fly non-stop for eight days, while the most impressive man-made airplane can only remain in the sky for 82 hours without a stop.
The bar-tailed godwit’s journey, from Alaska to New Zealand, covers over 6,835 miles. It completes this trip twice a year, in autumn going to New Zealand, and in spring back to Alaska. The tireless bird ends the trip without stopping once for food or rest. All other birds can only finish trips that are twice as short as what the bar-tailed godwit travels.
One reason for the bar-tailed godwit’s success is that it has made the best use of its fuel, which is only 0.41 percent of its body weight over each hour of any given long flight. Hedenstrom, a professor from Lund University, says, “This figure is extremely low compared with other birds.” The bird also has a special body shape that helps it fly easily. It stores body fat and protein to manage its trips. It also travels fast, compared to other birds and animals.
Many questions remain about this bird record holder that never gets lost in the air. Researchers wonder whether it has an inside compass(指南针) that helps it to know the direction. Please watch how beautiful bar-tailed godwits look as they come in for a landing, along with other birds.
【小题1】For the flight from Alaska to New Zealand, the bar-tailed godwit _____.

A．doesn’t need to stop to eat	B．is afraid of hot weather
C．seems very tired at last	D．should fly less than 7000 metres

【小题2】The main reason why the bar-tailed godwit can break the record is that it ______.

A．eats little food every hour	B．has a special body shape
C．stores much water in its body	D．has very light body weight

【小题3】The last paragraph tells us that ________.

A．researchers have understood the bird very well

B．the bird has a very good sense of direction

C．there are still many who doubt the bird’s ability

D．the bird has an inner compass

【小题4】What is the text mainly about?

A．A bird that breaks the record for the longest non-stop flight.

B．Birds and airplanes that can fly over a long distance.

C．Reasons for the bar-tailed godwit’s long-distance flight.

D．An introduction to long-distance flights of birds and humans.

One day while shopping in a small town in southern California，it was my misfortune to be approached by a clerk whose personality conflicted with mine. He seemed most unfriendly and not at all concerned about my intended purchase. I bought nothing，and marched angrily out of the store. My hostility（敌意） toward that clerk increased with each step.
On the outside，standing by the road，was a dark­skinned young man in his early twenties. His expressive brown eyes met and held mine，and in the next instant a beautiful, dazzling（给人印象深刻的） smile covered his face. I gave way immediately. The magnetic（磁力的） power of that smile dissolved （溶解）all bitterness within me，and I found the muscles in my own face happily responding（回应）.
“Beautiful day，isn't it？”I remarked，in passing. Then，I turned back.“I really owe you a debt of gratitude（感谢），”I said softly.
His smile deepened, but he made no attempt to answer．A Mexican woman and two men were standing nearby．The woman stepped forward and volunteered, "Sir, but he doesn't speak English．Do you want me to tell him something?" In that moment I felt transformed（改变）．The young man's smile had made a big person of me．My friendliness and good will toward all mankind stood ten feet tall．
"Thank you?" The woman seemed slightly puzzled．
I gave her arm a friendly pat as I turned to leave．"Just tell him that," I insisted．"He'll understand．I am sure !"
Oh, what a smile can do! Although I have never seen that young man again, I shall never forget the lesson he taught me that morning．From that day on, I became smile-conscious, and I practice the art anywhere and everywhere, with everybody．
【小题1】Why did the author leave the store angrily?

A．The clerk treated him unkindly．	B．He couldn't buy what he wanted．
C．The clerk didn't speak English．	D．The store's goods were too dear．

【小题2】By saying "I felt the muscles（肌肉） in my own face happily responding" （in Paragraph 2）, the author means __.

A．he was still angry	B．he did not want to smile
C．he would thank the young man	D．he smiled back at the young man

【小题3】The author asked the woman to say "Thank you!" to the young man because the young man_____.

A．had helped the author before	B．taught the author how to smile
C．was a kind employee of the store	D．taught the author a valuable lesson

【小题4】In the passage, the author seems to suggest that we should __   ___.

A．be generous to strangers	B．practice smiling every day
C．smile at other people	D．help people in trouble