28．We can infer from the last paragraph that ________. A．human development of coastal areas threatens the survival of sea turtes
B．climate change can't threaten the survival of sea turtles C．sea turtles exist for a short time
D．sea turtles can quickly adapt to the changes of their habitats
答案与解析
25．B 推理判断题。由第二段第三句可知，海龟卵孵化的极限温度是34摄氏度，超过这个温度名孵化就会失败。
26．C 细节理解题。由第二段最后两句可知，温度升高使得红海龟卵孵化的小海龟的性别比例严重失衡。
27．D 细节理解题。由第三段第一句可知，气候变化影响了成年海龟的进食模式。
28．A 推理判断题。文章最后一段说明，海龟对气温变化适应能力很强，但人类的海岸开发对海龟的生存是个很大的威胁。
C
Pierre is a 25-year-old penguin at the California Academy of Sciences. Due to his old age, he was going bald, which made him feel too cold to swim in the pool. Therefore, biologists at the academy had a wetsuit created for this penguin to help him get back in the swimming pool.
Unlike marine mammals, which have a layer of blubber to keep them warm, penguins depend on their waterproof feathers. Without them, Pierre was unwilling to jump into the swimming pool and ended up trembling on the side of the pool while his 19 peers played in the water.
“He was cold; he would shake，” said Pam Schaller, a senior
biologist. Schaller first tried a heat lamp to keep Pierre warm. Then she got another idea: if wetsuits keep humans warm in the cold Pacific, why not make one for Pierre?
Schaller designed the suit, which covered Pierre's body and had small openings for his flippers.
“I would walk behind him and look at where there were any gaps, and cut and refit until it looked like it was extremely suitable，” she said.
One concern was that the other penguins would reject Pierre in his new suit, but in fact, they accepted his new look. He swam freely and got along with others well, although he was the only penguin with a black stomach.
Schaller couldn't say for sure whether the wetsuit allowed Pierre to recover his fine feathers, but “certainly we were able to keep him comfortable during a period of time that would have been very difficult for him to stay comfortable”．
Pierre will take off his suit after his new feathers grow back. 29．Pierre felt too cold to swim in the pool because of ________. A．not having a layer of blubber B．having few feathers due to old age C．having no wetsuit
D．other penguins rejecting him
30．The idea of making a wetsuit for Pierre came from ______.
A．total invention
B．the use of wetsuit on humans C．the use of heat lamp D．waterproof feathers
31．what does the underlined word in the second paragraph mean?
A．Feeling scared. B．Staying alone. C．Shaking with cold. D．Keeping warm.
32．The best title of the passage is “________”． A．Wetsuit for An old Penguin B．Old Penguin Getting Bald. C．Unwilling to swim D．Strange look of Pierre.
答案与解析
29．B 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.
30．B 细节理解题。文章第三段讲述了Schaller 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?
31．C 词义猜测题。tremble 意为“颤抖，哆嗦”。
32．A 主旨大意题。全篇讲述的是生物学家给一只老企鹅做保暖潜水服，帮它重返泳池的故事。因此A项正确。
D
As we enjoy the summer ocean waves along the beaches, we may think nervously about Steven Spielberg's Jaws and the great fear that sharks inspire in us. Yet we are happy to see global efforts to protect the declining number of sharks. The world has realized that we need the species, like sharks, to keep a balanced ecosystem.
Sharks, in particular, are “in” these days. Thanks to good public policy and famous stars such as Jackie Chan and Ang Lee, killing sharks for fin soup is no longer cool.
The demand for shark fins has been rising for decades, threatening sharks with extinction (灭绝)—up to 100 million sharks are killed each year just for their fins. But we have started to reverse the trend, particularly in many areas of the United States and overseas where restaurants once proudly provided delicious shark fins on the menu.
In California, a ban on the sale and possession of shark fin soup has gone into effect this year through the efforts of Wild Aid and other organizations.
Overseas marketing and public efforts featuring posters on public transportation systems and TV ads have been underway for the past few years. These efforts all show signs of success, on both the supply side and the demand side of trade in shark fins.
Actually, stopping the killing of sharks is part of a broader movement to stop the killing of wild animals and the buying and selling of wildlife products. These products come from hunting elephants, tigers and rhinos, besides killing marine life.
Whether it is shark fin soup or ivory piano keys, killing animals is big business. The hunting of elephants in search of ivory tusks for luxury(奢侈的) goods has become a full-scale war. The decrease of
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