Some species of Arctic birds arethreatened by recent sharp increases in the population of snow geese, whichbreed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southernregions where they winter, the hunting season ends if and when hunting hasreduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species torecover. Which of the following, if true, mostseriously undermines the argument? A.Hunting limits for snow geese were imposed many years ago in response toa sharp decline in the population of snow geese. B. It has been many years since the restriction led to the hunting seasonfor snow geese being closed earlier than the scheduled date. C. The number of snow geese taken by hunters each year has grown every yearfor several years. D. As their population has increased, snow geese have recolonized winteringgrounds that they had not used for several seasons. E. In the snow goose’s winter habitats,the goose faces no significant natural predation. 今天错的一道逻辑题,本质是语法词~~~ -- by 会员 yiayia (2012/3/12 18:42:47)
这道题是B吧 bat说这种结论是典型的因果型结论,所以要削弱结论就行就是说dropping limits行不通,然后就是b了 b就是我以前经常搞混的一个句型 我开始做这个题目的时候想的是要说dropping limits不行,结果选成A,而A当时看的时候真觉得脑袋不清晰,硬是给我看成是droping limits了, 晚上来看这个就是b了 B是说这个限制早已经被关掉了drop了好多年 |