【正文】 rd garden that attracts lots of bees, butterflies, and yes, birds. They are wele here. 21. The arrival of the two crows ______. A. disturbed the author’s life B. frightened the author’s dog C. angered the author’s neighbors D. damaged the author’s backyard 22. Why did the author lock her dog up? A. She wanted to take some photos. B. The dog kept making loud noises. C. She wanted to protect the little bird. D. The parent crows were to attack the dog. 23. After seeing the little crow, the author______. A. decided to help look after it B. planned to drive the crows away C. fell in love with the pair of crows D. was curious to know its growing process 24. The author writes the text mainly to______. A. show an annoying situation B. share a personal experience C. call on readers to protect birds D. seek advice on dealing with crows B On my table sits a photograph of a young man with thick black hair and eyes dark with the depth of understanding. It is Andy, who never hurt people. If he was angry, you knew it. If he was sad, he showed it. However, being the middle son, Andy always seemed to play the role of the mediator. The way he behaved could make people calmer and there was something mature about his judgment. He was an activist all of his life. At age 15, he traveled to Washington, ., to take part in a Youth March for Integrated (綜合的 ) Schools. At 17, he journeyed to West Virginia by bus to examine the poverty of Appalachia. At 19, he worked at a camp for children who lacked money and education. Then, in the spring of 1964, at age 20, he said, “Mom, I’d like to go to Mississippi.” The Mississippi Summer Project was to flood the state with hundreds of northern college students. The volunteers would form “freedom schools” to teach AfricanAmericans about their voting rights. It was called “one of the most ambitious civil rights projects yet.” The violence against blacks had never stopped. In the previous seven decades, nearly 600 known killings had taken place in the state. But the reasons why part of me wanted Andy to stay were the same reasons he wanted to go. Only five percent of Mississippi’s halfmillion AfricanAmericans were registered to vote in 1960. I had fought for what I believed in all my life. I found a husband who had done the same. How could I say no to Andy? As Andy was preparing to leave, I threw some bandages into his bag. I thought he might get pushed around. Never in my wildest dreams did I think I’d never see him again. There are 40 names written on the Civil Rights Memorial in Montgomery, Alabama. Of the 40 victims, 19 were killed in Mississippi. One of them is my son. I allowed him to go to Mississippi because that is who he was. And it is who I was, too. 25. The first paragraph is mainly about Andy’s ______. A. appearance B. behavior C. character D. background 26. We know from the text that the Mississippi Summer Project ______. A. aimed to help educate AfricanAmericans B. fought for AfricanAmericans’ voting rights C. attracted college students from all over the country D. tried to protect AfricanAmericans from being killed 27. The underlined words “the reasons” in Paragraph 4 probably refer to ______. A. the whole family had a spirit of adventure B. blacks were in a disadvantageous position C. it was the most dangerous civil rights project D. Andy may bee a hero at the cost of his life 28. How did the author feel about allowing Andy to go to Mississippi? A. Guilty but proud. B. Ashamed but calm. C. Regretful but satisfied. D. Painful but sympathetic. C Dragonflies (蜻蜓 ) eat a lot, and they constantly hunt for food. What’s more, they usually catch it in the air. Zig! The dragonfly catches a small fly. Zag! It seizes a mosquito. Very few insects can outfly the dragonfly. No matter how fast they go, no matter which way they turn, the dragonfly is usually able to follow. Two engineers at the University of Tennessee Space Institute have been studying the way that dragonflies fly. Dr. James Wu and Dr. Ahmad Vakili are studying ways to design a fighter plane that can change direction as quickly and easily as dragonflies can. Why is that important? If you are in a fighter plane, and another plane is after you, you want to be able to fly more quickly than the other plane, Dr. Vakili says. A dragonfly’s wings are the key to its flying ability, Dr. Wu and Dr. Vakili say. If you look closely, you will see that a dragonfly has two wings on each side of its body—a long front wing and a slightly shorter back wing. During flight, small but powerful winds of air move along each of the dragonfly’s front wings. Thus, the pressure of air keeps the dra