答案　D

　　A.Approving.

　　B.Concerned.

　　C.Enthusiastic.

　　D.Doubtful.

　　解析　推理判断题。由第一段中的“gets quite a bit worse for bunnies”以及全文作者对兔子遭遇的表述可以推出作者对一些兔子濒临灭绝的现状表示了关心和关注(concerned)所以选B项。

　　答案　B

　　考点四　词义猜测题

　　Passage 1　(2015·安徽)

　　话题：小蚂蚁大力量

　　词数：288

　　(个体的) ant hardly weigh anything, and around the poles. For animals their size, ants have been astonishingly successful, largely due to their wonderful social behavior.

　　In colonies (群体) that range in size from a few hundred to tens of millions, on of labor. Even more amazing is how they achieve this level of organization. Where we use sound and sight to communicate, ants depend primarily on pheromones (外激素), ny. When an ant finds food, it produces a pheromone that will lead others straight to where the food is. When an individual ant comes under attack or is dying, it sends out an alarm pheromone to warn the colony to prepare for a conflict as a defense unit.

　　In fact, when it comes to the art of war, ants have no equal. They are completely fearless and will readily take

　　on a creature much larger than themselves, attacking in large groups and overcoming their target. Such is their devotion to the common good of the colony that not only soldier ants but also worker ants will sacrifice their lives to help defeat an enemy.

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