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Ⅵ.阅读理解 (30分) A Dolphins (海豚) are not fish but mammals (哺乳动物).They live in groups, and speak to each other in their own language.In this way they are like many other animals, like bees.But dolphins are very different from almost all land animals.Their brain (脑) is nearly the same size as humans', so they are the cleverest animals.And they live for 20 to 30 years. But what does the dolphin look like?The dolphin has teeth, and eats fish.It can grow up to three and a half metres long.Its nose is very long.Like some other animals, the dolphin uses sound to find its way.They make sound to talk to each other and to help find food.We now know they don't use their ears to listen to the sound, but the jaws (颚). Dolphins are friendly to people.They often save people in the sea.So many people like them. 36.What kind of animals are dolphins? A.Fish. B.Mammals. C.Birds. D.We don't know. 37.The biggest difference between dolphins and other land animals is that ______. A.their brain is nearly the same size as humans' B.they live in groups C.they speak to each other in their own language D.they are mammals 38.The dolphin can grow up to ______ metres long. A.3.5 B.2.5 C.3 D.2 39.Dolphins listen to the sound through their ______. A.ears B.mouths C.jaws D.heads 40.Which of the following sentences is WRONG? A.Dolphins can live for 20 to 30 years. B.Dolphins often use sound to find their way. C.Dolphins aren't friendly and they like to attack (袭击) people. D.Dolphins can help people who are in trouble in the sea. B Not only adults but also teenagers have problems in their life.Here is a survey showing the main problems of teenagers. They feel stressed because they have too much homework to do both at school and at home.They have lots of exams to ta ke.And parents usually send them to different classes at weekends.They don't have their own time to do what they are interested in. Now more and more teenagers are getting shortsighted.They often read in bed or keep reading for a long time without having a rest.Some of them are crazy about playing computer games.Some spend too much time watching TV. Another serious problem among teenagers is that many of them are becoming fat.They eat too much junk food, but they take little exercise. I think teenagers should think of ways to deal with problems.They should make a plan for study and hobbies and find time to relax as much as possible. 41.How many main problems are mentioned in the survey? A.One. B.Two. C.Three. D.Four. 42.Teenagers feel stressed because they have ______. A.too much homework B.lots of exams C.different classes to take at weekends D.A, B and C 43.The underlined word “shortsighted” means “______” in Chinese. A.目光短浅的 B.近视的 C.无先见的 D.小眼的 (责任编辑：admin) |