题目

（2008年杭州模拟）与两栖动物相比，爬行动物个体发育过程中特有的阶段或构造是（     ） A.卵膜            B.囊胚                C.原肠胚              D.羊膜 答案：  D 解析:   爬行动物不同于鱼类和两栖动物的最大特点是在发育过程中具有羊膜，这一结构保证了爬行动物成为真的陆生脊椎动物。The book, Aliens Ate My Homework, is set in a small town in the United States. By the way the characters talk to each other and the description of items from their daily lives, I think the story takes place within the last 10 years. It is a story about a boy named Rod Allbright who goes to school like any other normal kid. Unfortunately, the class bully(恃强凌弱者) always picks on him because he is overweight. While he’s working on a school project for the science fair, tiny aliens(外星人) come, crashing through his bedroom window in a spaceship. They have come to the earth to get another alien, an evil one named BKR. He is known in other galaxies(星系) for his cruelties. Rod gets bullied throughout the entire novel. The bully’s name is Billy Becker, who is also called BKR! Rod does not discover that Billy is a bad alien until later on.This book has lots of action and the main character is fun to read about. The most exciting part is when the aliens and Rod find out that BKR is Billy Becker and they skip school and go to search his house. They get caught when BKR comes home from school. He traps them in a storing device where he keeps his alien items. They break free of the device and escape from his house with some difficulty. Rod Allbright is fun to read about because he can never tell a lie. This gets him into trouble when the aliens eat his homework and he can’t make up an excuse for the teacher.The main idea that the author shares is that there could be other galaxies out in the universe with intelligent life forms who could be almost the same as humans. In this book, the aliens are just like humans in the way they think even though they look different and have a different language. I have learned that if you are nice to people they will be nice in return. This is proven in the book because Rod is nice to the aliens and they return the favor.1. The tiny aliens come to the earth to _________.A. look for resourcesB. do research on the earthC. find an alien who has got lostD. catch a cruel alien2.What’s the right time order for the following events?a. Billy is found to be BKR.b. Tiny aliens come to the earth.c. Rod and the tiny aliens go to search BKR’s house.d. Rod and the tiny aliens are trapped, but later escape.A. abcd B. abdc C. bacd D. bcad3.What can be inferred from the last paragraph?A. It pays to be kind to others.B. It pays to work for the science fair.C. Aliens are cruel to humans.D. Aliens and humans are alike.4.The passage is mainly about_______.A. aliens B. school bullyingC. a science fiction story D. a boy’s school life