1. Why are drifting bottles used?

　 A. To determine the position of a ship.　　　　　　　　 B. To find the direction of a current.

　 C. To predict the direction of a ship.　　　　　　　　　 D. To carry message across the ocean.

14、(1分)

　　 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.

5. According to this passage, the underlined word tailored probably means __________.

　 A. measured　　 　　B. specially prepared　　　　　 C. cut 　　 D. invented

4. All of the following were not praised by the author except ___________.

　 A. the boy who shared his cake with others

　 B. the boy who ate up all his cake by himself

　 C. the boy who kept the cake for the future

　 D. the boys who didn’t obey their parents

3. Which of the following statements is true?

　 A. The author was saved from the fire.

　 B. The author was brought up from his grandmother.

　 C. Grandma was good at telling children stories.

　 D. Grandma told stories to children just for fun.

2. Which of the following details supports the main idea of the passage?

　 A. The children were saved from the fire because they followed directions.

　 B. Grandma told a story of three boys at school.

　 C. Each of the three boys got a cake sent from home.

　 D. The big prairie fire soon spread over to the village.

1. What is the main idea of this passage?

　 A. Children should obey their parents quickly.

　 B. Children should share with others.

　 C. The author remembers many of her grandma’s wonderful stories.

　 D. The grandma’s stories helped teach the children morals and good manners.

13、(1分)

　　 Grandma was a wonderful story-teller, and she had a set of priceless, individually (独特地) tailored stories with which American grandparents of her day brought up children. There was the story of the little boys who had been taught complete, quick obedience (服从). One day when they were out on the grassy plain, their father shouted. “Fall down on your faces!” They did, and the terrible prairie(草原) fire swept over them and they weren’t hurt. There was also the story of three boys at school, each of whom received a cake sent from home. One saved his, and the mice ate it; one ate all of his , and he got sick; and who do you think had the best time? -Why, of course, the one who shared his cake with his friends.

5. People who suffer from astigmatism have　　 .

　 A. one eye bigger than the other

　 B. eyes that are not exactly the right shape

　 C. a difficulty that can be corrected by an operation

　 D. an eye difficulty that cannot be corrected by glasses

4. Having two eyes instead of one is particularly useful for　　 .

　 A. seeing at night　　　　　　　　　 B. seeing objects far away

　 C. looking over a wide area　　　　　 D. judging distances