【正文】
ow let?s get to know some of them. Sea cucumber Sea cucumber are strange animals living at the bottom of the sea. They wear brown or pale green coats with many sticks up. When summer es, they stay deep to sleep because they are afraid of heat. And when it is autumn, they move to shallow (淺的 ) water and get their food. Pike The pike is a kind of freshwater fish. They are good swimmers and like swimming near boats, waiting to be fed. They have sharp teeth to catch fishes. When they are young, they live in groups. However, when they grow up, they prefer to live alone. Cuttlefish A cuttlefish can swim quite fast, so it is also called rocket(火箭 ) fish. It has eight arms and two feelers on its head, just around its mouth. It ejects ink (噴墨 ) when it is in danger. Its meat is delicious, and it is often the first choice for many peopl e. Octopus An octopus has long arms, with which to catch food and protect itself. When it is sleeping, one or two of its arms are still on duty, keeping moving. Once it feels something dangerous, it can wake up at once to take action. 49. Sea cucumbers stay deep to sleep in summer because they . A. are afraid of high temperature B. want to get strong and fat C. are afraid of their enemy D. want to live alone 50. According to the passage, lik es to swim near boats. A. the sea cucumber B. the pike C. the cuttlefish D. the octopus 51. What happens if a cuttlefish meets its enemy? A. It rushes at the enemy at once. B. It cuts off one of its arms. C. It bites with its sharp teeth. D. It ejects ink to the enemy. 52. The of an octopus can help protect it when in danger. A. color B. arms C. sound D. smells D Reading makes one wise, but many adults seldom read. They say they are too busy to have time to read. Sure. They have work to do. They have families to support. But these are only excuses. The fact is that they haven?t got a reading habit. A reading habit isn?t something natural. It needs to be trained. And it?s never too late to develop a reading habit. Scientists believe proper books are very important for children to develop a good reading habit. A book in rich colors and with simple patterns(圖案 ) such as lines and circles is a good choice for babies of three months old. When they reach six months, they will bee interested in simple story books in rich colors. When children get old enough to read by themselves, it?s necessary to buy books that are both interesting and right for them to understand. Books which are either too easy or too difficult are not good for kids to keep their reading habits. Only buying books for children isn?t enough. For kids, parents are their first teachers. So parents should read books to set an example. Children will follow them. Scientists say imitating the adults is a born skill. And it is the most valuable way for children to learn. This will certainly help them develop a reading habit in the end. 53. According to the writer, many adults seldom read because they . A. don?t have enough time B. have to work all the time C. haven?t got a reading habit D. have to support the family 54. The underlined word “imitating” here probably means . A. copying B. reading C. testing D. missing 55. We can learn from the passage that