Passage 1

　　【語篇導讀】 文章講述了一個女孩感染了超級病菌的一次經(jīng)歷。

　　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　細節(jié)理解題。由文章開頭的“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在準備度假時發(fā)現(xiàn)了額頭上的腫塊。

　　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　推理判斷題。由第五段中的“If you get cut playing sports,and you come into...to get in”可推斷,學生運動員可能被超級病菌攻擊的部分原因是他們在運動時極易受傷,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　推理判斷題。由倒數(shù)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,在一開始服用了急診室開出的藥后,Bethany身上的腫塊變得更大了。

　　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　細節(jié)理解題。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,醫(yī)生們最擔心的是超級病菌對所有的藥物都有了抵抗力。

Passage 2

　　【語篇導讀】在過去,許多研究過于強調(diào)動物是如何被訓練學習的,但最近越來越多的研究集中于動物如何使自己學習這一課題上。

　　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　細節(jié)理解題。根據(jù)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,它們被會剝殼的媽媽喂養(yǎng)時可學得這種技巧。

　　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　推理判斷題。根據(jù)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,群居的墨西哥松鴉更精于記憶并利用其他鳥藏的食物,所以選C項。

　　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　推理判斷題。第一個實驗提到的黑鼠,它們被會剝殼的媽媽喂養(yǎng)時可學得這種技巧。第二個實驗提到的鳥,通過觀察別的鳥來學習。由此可知,D項正確。