Passage 1

　　【语篇导读】 文章讲述了一个女孩感染了超级病菌的一次经历。

　　1.Bethany discovered a bump on her forehead 　　　.

　　A.after the plane for Portland landed

　　B.when she came back from a vacation

　　C.after she boarded a flight from Austin

　　D.when she was preparing for a vacation

　　答案　D

　　解析　细节理解题。由文章开头的“Bethany Burke was packing for a family vacation when...She saw a small ugly red bump in the middle of her forehead.”可知,Bethany在准备度假时发现了额头上的肿块。

　　2.Student athletes are likely to be attacked by superbugs partly because 　　　.

　　A.they get cut easily

　　B.they are often tired

　　C.they are healthy and strong

　　D.they often wear dirty clothes

　　答案　A

　　解析　推理判断题。由第五段中的“If you get cut playing sports,and you come into...to get in”可推断,学生运动员可能被超级病菌攻击的部分原因是他们在运动时极易受伤,易被感染。

　　3.How did Bethany feel after taking the pills given by the doctor in the nearest emergency room?

　　A.Even worse.

　　B.Much better.

　　C.A little better.

　　D.As terrible as before.

　　答案　A

　　解析　推理判断题。由倒数第二段中的“One of the bumps grew so large that she could no longer open her eye,and her pain increased.”可知,在一开始服用了急诊室开出的药后,Bethany身上的肿块变得更大了。

　　4.Doctors are most worried that 　　　.

　　A.antibiotics are being overused

　　B.teens are being attacked by superbugs

　　C.superbugs may become resistant to all drugs

　　D.more people will get infected with superbugs

　　答案　C

　　解析　细节理解题。由最后一段中的“But what happens when superbugs become resistant even to those drugs?For doctors,that’s the biggest worry.”可知,医生们最担心的是超级病菌对所有的药物都有了抵抗力。

Passage 2

　　【语篇导读】在过去,许多研究过于强调动物是如何被训练学习的,但最近越来越多的研究集中于动物如何使自己学习这一课题上。

　　1.Urban black rats were able to learn to strip when 　　　.

　　A.fed by stripper mothers

　　B.fostered by urban mothers

　　C.living with stripper babies

　　D.eating cones by themselves

　　答案　A

　　解析　细节理解题。根据第三段中的“In the case of rats,the youngsters took cones away from the mother when she was still eating them,allowing them to acquire the stripping skill.”可知,它们被会剥壳的妈妈喂养时可学得这种技巧。

　　2.In Bird Behavior Study,we can conclude that 　　　.

　　A.nutcraker observers perform well in remembering

　　B.the Clark’s Nutcraker has better learning skills

　　C.the Mexican Jay benefits from social living

　　D.jay cachers are only good at hiding food

　　答案　C

　　解析　推理判断题。根据最后一段中的“the social living Mexican Jay is more adept at remembering and so making use of,the caches of others.”可知,群居的墨西哥松鸦更精于记忆并利用其他鸟藏的食物,所以选C项。

　　3.According to the passage,both studies show that 　　　.

　　A.skills are equipped in childhood

　　B.skills improve by practice

　　C.animals study through playing

　　D.animals learn by examples

　　答案　D

　　解析　推理判断题。第一个实验提到的黑鼠,它们被会剥壳的妈妈喂养时可学得这种技巧。第二个实验提到的鸟,通过观察别的鸟来学习。由此可知,D项正确。