9．Bears and humans often meet in National Parks．Although campers and hikers are warned not to feed the bears，many people ignore these warnings and feed the beasts anyway．When bears are used to people's food，problems soon arise．
Bears like to eat a large variety of things，both meat and vegetable．Without human assistance，bears live nicely on roots，twigs，leaves of trees，insects and small animals．With people around，the bears'tastes quickly expand to include sandwiches，hot dogs，hamburgers，and anything else they can temp humans into giving up．
Bears often develop clever strategies for getting people to let go their food supplies．More often than not，an unsuspecting hiker has taken off his or her pack for a rest only to have a bear charge out of the woods，grab the pack and quickly disappear into the underbrush with it．Hanging the pack on a tree branch won't help．Bears have been known to climb up，jump off，and catch the pack on the way down．One mother bear stretched up with her baby on her shoulders to reach a pack stored on a pole．Many bears threaten people into giving up their supplies．Although a bear is unlikely to attack a person and would probably run away if screamed at，few people are willing to do so．Most people drop the pack and run the other way．This，of course，delights the bear．In some places，the Park Service installed some metal barrels with lids to help campers keep their supplies safe from bears．Although the bears were unable to open these containers，the effort was less than successful．Most campers，unable to tell the metal drums from rubbish cans，never used them for the intended purpose．
67．Feeding bears on people's foodB．
A．brings the people a lot of fun B．can cause problems
C．often causes injuries and deaths D．helps bears survive
68．If people had never fed bears，the bearsA．
A．might be satisfied with what they had originally
B．would have starved long before
C．wouldn't have enough food supply
D．would have hunted for other kind of food
69．Which of the following is TRUE？D
A．If fed on sandwiches and hot dogs，the bears would no longer eat roots，twigs and insects．
B．It's likely that bears would hurt people if the people didn't give up their food．
C．Most people would frighten away the bears that would temp their food．
D．Seeing a pack，the bear would quickly snatch it and run away with it．
70．Bear-proof containers didn't work becauseC．
A．bears were clever enough to get the food in them
B．they were left open in the open air
C．people were not sure of their use
D．they were once used as rubbish cans．
分析 本文主要講述了在動物園里人們常常違反規(guī)定．給熊喂食不當(dāng)?shù)氖澄�，從而會產(chǎn)生一些問題．
解答 67．B 細(xì)節(jié)理解題．根據(jù)文中的第一段的"When bears are used to people's food，problems soon arise．"可知，人們給熊喂食人類的食物可能導(dǎo)致一些問題．故選B
68．A 細(xì)節(jié)理解題．根據(jù)文中的第二段的"Without human assistance，bears live nicely on roots，twigs，leaves of trees，insects and small animals．"可知，如果人們之前沒有喂過熊，它們可能會對它們最初所吃的東西感到很滿意．結(jié)合選項，故選A
69．D 細(xì)節(jié)理解題．根據(jù)文中的第三段的"More often than not，an unsuspecting hiker has taken off his or her pack for a rest only to have a bear charge out of the woods，grab the pack and quickly disappear into the underbrush with it．"可知，這個熊看到包裹后快速地拿起它然后跑開了．結(jié)合選項，故選D
70．C 推理判斷題．根據(jù)文中的第三段的"Most campers，unable to tell the metal drums from rubbish cans，never used them for the intended purpose．"可知，這是因?yàn)槿藗儧]有確保它的用途．故選C
點(diǎn)評 本文是一個日常生活類閱讀，題目涉及多道細(xì)節(jié)理解題，做題時結(jié)合原文和題目有針對性的找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項選出正確答案．推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案，切忌胡亂猜測，一定要做到有理有據(jù)．
