问题 单项选择题

地震短期、临震预报仍是世界性难题,目前,精确预测地震的震级和时间还无法做到。国外地震学家普遍认为,地壳下层的塑性岩石或蛇纹岩被挤进地壳上层的裂缝中时,就会引发地震。这些容易滑动的蛇纹岩是由富含铁、镁的矿物与水作用而生成的,在此过程中会产生氢气,一旦该层发生断裂,氢气就经由断层的裂隙冒出,致使正常空气中的氢气浓度剧增。 这段文字的主旨是( )。

A.说明地震并非不可预测

B.描述地震发生的大致过程

C.介绍一种地震预测的方法

D.揭示地震与地层断裂的关系

答案

参考答案:A

解析: 文段通过分析地震引发的原因以及产生氢气的一系列过程意在证明地震并不是完全不能预测的。B项只对最后一句进行概述,C、D项为无关选项,均应排除。

单项选择题
阅读理解

阅读理解。

     Shay asked, "Do you think they'll let me play?" Shay's father knew that most of the boys would not want

someone like Shay on their team, but the father also understood that if his son, mentally and physically disabled,

were allowed to play, it would give him a much-needed sense of belonging and some confidence.

     Shay's father approached one of the boys on the field and asked if Shay could play, not expecting much.

The boy looked around and said, "We're losing by six runs (分) and the game is in the eighth inning (局). I

guess he can be on our team and we'll try to put him in to bat in the final inning."

     Shay struggled over to the team's bench and put on a team shirt with a broad smile and his father had a

small tear in his eye and warmth in heart. The boys saw the father's joy at his son being accepted.

     In the bottom of the eighth inning, Shay's team scored a few runs but was still behind by three. In the top

of the final inning, Shay put on a glove and played in the field. Even though no hits came his way, he was

obviously joyful just to be in the game and on the field. In the bottom of the final inning, Shay's team scored

again. Now, Shay was scheduled to be next at bat. Would they let Shay bat and give away their chance to win

the game?

     Surprisingly, Shay was given the bat. Everyone knew that a hit was almost impossible. The first pitch (投)

came and Shay missed. The pitcher again took a few steps forward to throw the ball softly towards Shay. As

the pitch came in, Shay swung at the ball and hit a slow ground ball right back to the pitcher.

     The pitcher could have easily thrown he ball to the first baseman and Shay would have been out and that

would have been the end of the game.Instead, the pitcher threw the ball right over the head of the first baseman,

beyond the reach of all teammates. The audience and the players from both teams started screaming, "Shay,

run to first!" Never in his life had Shay ever run that far but made it to first base, wide-eyed and shocked.

Everyone should, "Run to second!" Catching his breath, Shay awkwardly ran towards second.By the time Shay

rounded towards second base, the smallest guy on their team, who had a chance to be the hero for his team fir

the first time,could have thrown the ball to the second baseman, but he understood the pitcher's intentions and

he too intentionally threw the ball high and far over the third baseman's head.

     All were screaming, "Shay, Shay, Shay, all the way Shay." Shay reached third base when one opposing

player ran to help him and shouted, "Shay, run to third." As Shay rounded third, all were on their feet, crying,

"Shay, run home!" Shay ran to home, stepped on the home base and was cheered as the hero who the who

won the game for his team.

     That day, the boys from both teams helped bring a piece true love and humanity into this world. Shay didn't

make it to another summer and died that winter, having never forgotten being the hero and making his father

so happy and coming home and seeing his mother tearfully hug her little hero of the day!

1. Not expecting much, Shay's father still asked the boy if Shay could play, mainly because the father _____.

A. noticed some of the boys on the field were heisting

B. guessed his presence would affect the boy's decision

C. learned some of the boys on the field knew Shay well

D. understood Shay did need a feeling of being accepted

2. In the bottom of the final inning Shay was given the bat because the boys _____.

A. believed they were sure to win the game

B. would like to help Shay enjoy the game

C. found Shay was so eager to be a winner

D. fell forced to give Shay another chance

3. The smallest boy threw the ball high and far over the third baseman's head, probably because that boy _____.

A. was obviously aware of the pitcher's purpose

B. looked forward to winning the game for his team

C. failed to throw the ball to the second baseman

D. saw that Shay already reached second base

4. Which of the following has nothing to do with Shay's becoming the hero for his team?

A. The pitcher did not throw the ball to the first baseman.

B. The audience and the players from both teams cheered for him.

C. The opposing players failed to stop his running to home.

D. One of the opposing players ran to help him.

5. What to you think is the theme of the story?

A. True human nature could be realized in the way we treat each other.

B. Everyone has his own strength even if mentally or physically disabled.

C. Everyone can develop his team spirit in sports and please his parents.

D. The results of the game should not be the only concern of the players.