题目

阅读理解When most people think of rodents(啮齿动物), they either think of pests like mice and rats, or cute animals, like guinea pigs or squirrels. What does not usually come to mind is the grass-chewing, water-loving, dog- sized capybara (水豚). Weighing up to 66 kilograms, the capybara is the world's largest rodent. And that might be the least interesting thing about this wonderful animal.Native to South America, capybaras are found in grasslands near lakes or rivers. They are excellent swimmers and spend much of their time in the water. They have webs between their toes to help them swim even better. Moreover, the position of their eyes, ears, and noses on the tops of their heads helps them fully dive in the water to hide from predators (捕食者). They love the water, and they can even sleep underwater, with only their noses above the surface.Like many other rodents, capybaras live in large social groups. What's unusual, however, is how friendly capybaras are with other animal species. The internet is full of images showing smaller animals sitting on capybaras. But despite these giant rodents' social natures and cuteness, they don't make very good pets. They can be territorial(有地盘意识的) with larger animals, and they have been known to bite humans when they feel threatened.Capybaras continue to lose some of their cuteness when one takes a look at their diet. Their main food is grass, but like many grass-eating animals, they are not able to fully take in their meal the first time it passes through their digestive system(消化系统). So, capybaras frequently eat their own droppings to get additional nutrients from previous meals. There are lots of reasons to love capybaras, but this probably isn't one of them. （1） According to this passage, what is special about capybaras among rodents? A . Their size. B . Their fur. C . Their teeth. D . Their living waters. （2）  In what unusual way do capybaras hide from their enemies? A . Their fur mixes with their environment. B . They live in large groups to hide each individual. C . They stand still in very tall grass. D . They keep most of their bodies under the water. （3） Why would a capybara NOT make a good pet? A . They need a lot of water to play in. B . They may hurt humans when threatened. C . Their food is too expensive to afford. D . They carry diseases that are dangerous to humans. （4） What does the author say about the capybaras' diet? A . Their diet is especially friendly to the environment. B . Capybaras become less cute when it comes to their diet. C . Capybaras keep a balanced diet to get additional nutrients. D . Their diet consists of many things, including grasses and other animals' waste. 答案： A D B B

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