小题1:B
小题2:B
小题3:B
小题4:D
小题5:A
人们印象中，企鹅应该不怕冷。而生活在美国加利福尼亚州旧金山加州科学院水族馆的一只斑嘴环企鹅，由于羽毛脱落而无法忍受冰冷的池水。为此，加州科学院研究人员特地为这只企鹅穿上“防寒服”，让它能够与同伴一样在水中游泳嬉戏。
小题1:细节理解题。文章第一段说明了Pierre怕冷的原因：Due to his old age, he was going bald, which made him feel too cold to swim in the pool.
小题2:细节理解题。文章第三段讲述了Pam想出这个办法的过程：Then she got another idea: if wetsuits keep humans warm in the cold Pacific, why not make one for Pierre?
小题3:细节理解题。文章第五段说明了Pam跟踪Pierre的原因：I would walk behind him and look at where there were any gaps, and cut and refit and cut and refit until it looked like it was extremely suitable。
小题4:词义考查题。tremble意为“颤抖，哆嗦”。
小题5:主旨大意题。全篇讲述的是生物学家给一只老企鹅做保暖夹克，帮它重返泳池的故事。因此A项正确。