题目

某空箱子恰好能够沿某斜面匀速下滑，如果再往箱子里装一些物体，则A．箱子不再下滑            B．箱子仍能匀速下滑      C．箱子将加速下滑          D．箱子将减速下滑 答案：B语篇理解 　　The old conditions of travel and the new conditions of most travel of today are exactly opposite. For in old travel, as on horseback or on foot now, you saw the country while you traveled. Many of your stopping places were for rest, or because night had fallen, and you could see nothing at night. Under the old system, therefore, a wise traveler might keep moving from day to day, slowly, in deed, but seeing something all the time, and learning what the country was through which he passed by, and talking with the people. But in the new system, he is shut up with his party and a good many other parties in a tight box with glass windows, and whirled on through dust if it be dusty, or rain if it be rainy, under arrangements which make it impossible to talk with the people of the country, and almost impossible to see what that country is. 1．The old conditions of travel are ______ the new ones. [　　] A．the same as B．exactly the same as C．very different from D．exactly different from 2．Which of the following is NOT TRUE according to the passage? [　　] A．In the past people traveled on horseback. B．In the past people made trips from day to day slowly.C．In the past some wise travelers could make their trips even at night. D．In the past people usually traveled slowly so that they could enjoy what they saw. 3．In the past travelers ______. [　　] A．could learn more than those of today during their trips B．might continue their trips from night to night C．could talk with the people and learn something about the country D．could stop and enjoy the night when it became dark 4．In this passage the author suggests that ______. [　　] A．now people go on trips in trains, buses or planes B．people on trips are not allowed to tall C．people on trips are often caught in the rain D．people on trips are often very dirty 5．The best title for this passage is ______. [　　] A．The Disadvantages of Travelling Today B．Comparison of Travelling in the Past with That of Today C．Contrast (对照) Between Travels in the Past and Today Travels D．The Advantages of Travelling in the Past