【正文】 to discover. One theory is that wolves howl to bond better together. It’s almost as if howling together helps the pack stay together. Perhaps it’s something similar to people feeling a sense of involvement with each other when singing a song together. But this theory may be wrong, explains Fred H. Harrington, a professor who studies wolf behavior. Indeed, there have been times when wolves have been seen one moment howling in a chorus, and the next, quarreling among each other. It appears that usually the lowestranking members of the pack may actually be “punished” for joining in the chorus at times. So is howling a way to strengthen a social bond or just a way to reconfirm (重新確認(rèn) ) status among its members? —Why do wolves howl for sure? What is clear, however, is that howling is often used among packmates to locate each other. Hunting grounds are distant and it happens that wolves may separate from one another at times. When this happens, howling appears to be an excellent means of gathering. Howling, interestingly, is a contagious behavior. When one wolf starts to howl, very likely others will follow. This is often seen to happen in the morning, as if wolves were doing some sort of “roll call” where wolves all howl together to report their presence. 28. What is the possible similarity between wolves’ howling together and human’s singing in chorus? A. The act of calling each other. B. The sense of acplishment. C. The act of hunting for something. D. The sense of belonging to a group. 29. Why does Harrington think the “social bond” theory may be wrong? A. Wolves tend to protect their hunting grounds. B. Wolves separate from each other after howling. C. Wolves sometimes have quarrels after howling together. D. Wolves of low rank are encouraged to join in the chorus. 30. Researchers are sure that wolves often howl to______. A. show their ranks B. find their panions C. report the missing ones D. express their loneliness 31. The underlined sentence in the last paragraph probably means_______. A. howling is a signal for hunting B. howling is a way of munication C. howling often happens in the morning D. howling spreads from one to another D It is quite reasonable to blame traffic jams, the cost of gas and the great speed of modern life, but manners on the road are being horrible. Everybody knows that the nicest men would bee fierce tigers behind the wheel. It is all right to have a tiger in a cage, but to have one in the driver’s seat is another matter. Road politeness is not only good manners, but a good sense. It takes the most coolheaded drivers great patience to give up the desire to beat back when forced to face rude driving. On the other hand, a little politeness goes a long way towards reducing the possibility of quarrelling and fighting. A friendly nod or a wave of thanks in answer to an act of politeness helps to create an atmosphere of good will and bees so necessary in modern traffic conditions. But such behavior of politeness is by no means enough. Many drivers nowadays don’t even seem able to recognize politeness when they see it. However, misplaced politeness can also be dangerous. A typical example is the driver who waves a child crossing the street at a wrong place into the path of oning cars that may not be able to stop in time. The same goes for encouraging old ladies to cross the road wherever and whenever they want to. An experienced driver, whose manners are faultless, told me it would help if drivers learnt to correctly join in a traffic stream without causing total blockages that give rise to unpleasant feelings. Unfortunately, modern drivers can’t even learn to drive, let alone master the roadmanship (公路駕車技能 ). Years ago, experts warned us that the fast increase of the car ownership would demand more giveandtake from all road users. It is high time for all of us to take this message to heart. 32. The most suitable title for this passage would be __________. A. Traffic Jams B. Good Manners C. Road Politeness D. Modern Drivers 33. Troubles on the road are often caused by __________. A. traffic jams B. the behavior of the drivers C. the great speed of modern life D. terrible road conditions 34. According to the writer, a good driver should __________. A. encourage children to cross the road whenever they want to B. beat back when forced to face rude driving C. be able to recognize politeness when he sees it D. join in a traffic stream quickly however other people feel 35. It is not always right for drivers to __________. A. master the roadmanship B. neglect politeness when they see it C. give a friendly nod in answer to an act of politeness D. en