C
It was still only a little after 7 o'clock. The sun was pale, and the air was cool. The morning smelled delicious. After a difficult walk, Sam finally sat down by the pool, put away his compass(指南针) and lifted his field glasses. There they were! The mother swan was only a few feet away. She was sitting very close, not moving. The father swan was nearby. Both birds were listening and waiting. Both birds saw Sam, but they thought it didn't matter. Sam stayed with these two great birds in the wild, just like old friends. That made him really happy.
In the morning, when the sun was up in the sky, Sam focused his glasses on the nest(巢) again. At last, he saw a small head pushing through the mother's feathers, the head of a baby swan. The baby climbed out of the nest. It had a grey head and neck, with soft fine feathers. Soon another baby appeared. Then another. Then the first one walked his way down into his mother's feathers again, for warmth. Then one tried to climb up his mother's back, but her feathers were wet, and he fell off. The mother swan just sat and sat, enjoying her babies, watching them use their legs. One of the baby swans, more brave than the others, left the nest and walked around on the shore(岸边) of the island. When this happened, the mother swan stood up. It was time for her to lead her children to the water. The baby swans did as their mother did and soon found it easy to swim.
"One, two, three, four, five," Sam counted. "One, two, three, four, five. Five babies, just as sure as I am alive! This is my lucky day." The father swan, when he saw his children in the water, felt like he should act like a father. He began by making a speech.
( Adapted from The Trumpet of the Swan by E. B. White )
()21. What does the writer want the readers to feel by saying "The morning smelled delicious."?
A. Cold. B. Enjoyable.
C. Ordinary. D. Strange.
()22. What does the underlined word "brave" in Para.2 mean in Chinese?
A. 幸运的 B. 懒惰的
C. 勇敢的 D. 笨拙的
()23. Why was it a lucky day for Sam?
A. He watched baby swans learn to dance.
B. He saw five newborn swans.
C. He helped the father swan protect the nest.
D. He found a new type of birds.
()24. How did Sam feel when counting the number of the baby swans?
A. Calm. B. Worried.
C. Down. D. Excited.
()25. What can we infer(推断) from the story?
A. Sam was not new to the birds.
B. Sam saved the birds there.
C. Sam will take the babies home.
D. Sam will write a final report.

21. B 【解析】推理判断题。根据“The morning smelled delicious.”以及后文Sam看到天鹅一家时的愉悦心情可知，这句话是为了让读者感到愉悦，故选B。
22. C 【解析】词义猜测题。根据“One of the baby swans, more brave than the others, left the nest and walked around on the shore of the island.”可知，这只小天鹅离开巢穴到岸边走动，比其他小天鹅更敢于行动，所以“brave”意为“勇敢的”，故选C。
23. B 【解析】细节理解题。根据“Five babies, just as sure as I am alive! This is my lucky day.”可知，Sam幸运是因为他看到了五只刚出生的小天鹅，故选B。
24. D 【解析】推理判断题。根据“Five babies, just as sure as I am alive! This is my lucky day.”中Sam感叹这是幸运日，可推断他当时很兴奋，故选D。
25. A 【解析】推理判断题。根据“Sam stayed with these two great birds in the wild, just like old friends.”可知，Sam和天鹅像老朋友一样相处，说明他对这些鸟并不陌生，故选A。

【分析】
做这类阅读理解题，需先通读文章理解大意，再针对每道题的题型（细节题、推理题、词义猜测题），定位原文对应内容，结合语境分析选项。比如21题需联系环境描写烘托的心情；22题通过划线词所在句的动作推断词义；23题直接找原文关键句子；24题根据人物感叹推断情绪；25题结合人物与动物的相处细节推理。
【解析】
21. 推理判断题。根据第一段中Sam看到天鹅一家时的愉悦氛围，以及“The morning smelled delicious”是烘托轻松愉快的环境，可知这句话是让读者感受到愉悦，故选B。
22. 词义猜测题。划线词所在句提到这只小天鹅“left the nest and walked around on the shore”，比其他小天鹅更敢于离开巢穴行动，由此推断“brave”意为“勇敢的”，故选C。
23. 细节理解题。根据最后一段Sam的话“Five babies, just as sure as I am alive! This is my lucky day.”可知，他觉得幸运是因为看到了五只刚出生的小天鹅，故选B。
24. 推理判断题。Sam数完小天鹅数量后感叹“这是我的幸运日”，结合他观察天鹅的愉悦状态，可推断他当时的心情是兴奋的，故选D。
25. 推理判断题。根据第一段“Sam stayed with these two great birds in the wild, just like old friends.”可知，Sam和天鹅像老朋友一样相处，说明他对这些鸟类并不陌生，故选A。
【答案】
21.B 22.C 23.B 24.D 25.A
【知识点】
英语阅读理解、细节理解题、推理判断题
【点评】
本文改编自经典儿童文学作品，通过Sam观察天鹅一家的故事，考查学生对文章细节、词义及逻辑推理的能力，需结合上下文语境分析，整体难度适中。
【难度系数】
0.7