返回列表 发帖

不知是否答案有误,求助

20. Some flowering plant species entirely dependent on bees for pollination, lure their pollinators with abundant nectar and pollen, which are the only source of food for bees. Often the pollinating species is so highly adapted that it can feed from-and thus pollinate-only a single species of plant. Similarly, some plant species have evolved flowers that only a single species of bee can pollinate-an arrangement that places the plant species at great risk of extinction. If careless applications of pesticides destroy the pollinating bee species, the plant species itself can no longer reproduce.

The information above, if true, most strongly supports which one of the following?

(A) The earliest species of flowering plants appeared on Earth contemporaneously with the earliest bee species.

(B) If the sole pollinator of a certain plant species is in no danger of extinction, the plant species it pollinates is also unlikely to become extinct.

(C) Some bees are able to gather pollen and nectar from any species of plant.

(D) The blossoms of most species of bees and do not attract others.

(E) The total destruction of the habitat of some plant species could cause some bee species to become extinct.

是选E吗?谢谢[em09][em09]
收藏 分享

i got it,thanks

TOP

zephyr1977:
  请在看我上面的帖子中列出的英文,当时我是没理解好这句话才选错的。
特别是:Similarly,“同样地”。他后面所说的话是在阐明蜂死,花绝。但用这个“同样地”反过来解释了蜂采only a single species of plant也可能出现的情况。
Robert之家-----我的家园

TOP

答案给的是E,但不明白为什么蜂死,花绝;会导致另一种情况花绝蜂死

TOP

还是你说的对。我在读提干时读错题了。解题的关键在于:
pollinating species is so highly adapted that it can feed from-and thus pollinate-only a single species of plant. Similarly,这句话。
是选E
Robert之家-----我的家园

TOP

我认为是E.

文中好象在说花种和蜜蜂一一对应关系存在,就有一种情况发生:蜂死,花绝;
E说明另一种情况花绝蜂死.从而说明一一对应是存在灭种的危险.
----------------
我们的口号是:路虽远,行则必至;事虽难,做则必成.

TOP

由于主要说的是传粉者对花的影响,所以我认为选B。
Robert之家-----我的家园

TOP

返回列表

站长推荐 关闭


美国top10 MBA VIP申请服务

自2003年开始提供 MBA 申请服务以来,保持着90% 以上的成功率,其中Top10 MBA服务成功率更是高达95%


查看