9．Imagine being a crew member，hundreds of years ago，sailing in southern waters．Your captain is searching for food while exploring unfamiliar waters．Your job is to watch the sea off the ship's side for ice．The wind is cold on your face．Alongside the ship，a fish darts past．Another slows to a stop and raises its head above the water to look at you．How could a fish do that？
Did the sailors see fish with feathers or swimming birds？Today，we know that the sailors saw birds that developed the ability to swim．Their wings became flippers，and they could"fly"through the water with amazing speed．
There are many types of penguins．Only two kinds raise their young on the continent of Antarctic．Adelie penguins grow up to 29inches tall and have a white ring around each eye．Emperor penguins have yellow orange color near their necks．Standing about 35inches tall，they are the tallest penguins living today．
Emperor penguins have nests on top of their feet．Father Emperor penguins keep the egg on top of their feet for more than two months，until the egg is ready to hatch．The mother penguin goes out for food during that time．Imagine holding an egg on your feet for two months until someone returns with food!
Male and female penguins are both good parents．Once the chicks hatch，both parents travel long distances to find food for them in the sea．It may be days before the parents return and the chicks eat again．When they return with food，the fun really begins．Chicks chase their parents，begging for food．Penguin chicks eat huge amounts at one time．
Eventually，the adult penguins stop feeding the chicks．This is nature's way of forcing children to grow up．When the penguin chicks are hungry enough，they find their way to the sea．Without any swimming lessons，they make their way into the icy waters and swim as only penguins do．
29．What does the author mainly want to tell us in Paragraph 1？C
A．It is dangerous to sail in unfamiliar waters．
B．The ice covers southern waters as far as we can see．
C．Penguins seemed unusual when the sailors first saw them．
D．It is difficult to find food if sailing in southern waters．
30．We now know that penguins seen by the sailors hundreds of years ago wereB．
A．fish with the ability to fly
B．birds that had learned to swim
C．birds that could fly into the sea
D．fish with black and white feathers
31．Why does the author say"the fun really begins"when the parents return with food？B
A．The chicks play games with each other while eating．
B．The chicks run after the parents while trying to get food．
C．The chicks have to find their way to the sea to get more food．
D．The chicks have to search for the food the parents have hidden．
32．Emperor penguin chicks will be forced to grow up when theyC．
A．must learn how to feed others
B．have to find a new place to live
C．have to find food by themselves
D．need to adjust to the changeable weather．
分析 文章描述了企鵝的發(fā)展演變、外貌、生活習(xí)性、哺育后代等內(nèi)容，讓我們更多地了解企鵝．
解答 29．C 推理判斷題．根據(jù)作者第一段對當(dāng)時(shí)場景的描述"Did the sailors see fish with feathers or swimming birds？（水手看到帶羽毛的魚或者會(huì)游泳的鳥了嗎？）"可知，當(dāng)?shù)谝淮慰吹狡簌Z時(shí)感覺不同尋常，認(rèn)為企鵝是會(huì)游泳的鳥，故選C．
30．B 細(xì)節(jié)理解題．根據(jù)第二段中"we know that the sailors saw birds that developed the ability to swim．Their wings became flippers，and they could"fly"through the water with amazing speed．"和對企鵝的描述可知，幾百年前見到的企鵝是學(xué)會(huì)了游泳的鳥，故選B．
31．B 推理判斷題．根據(jù)下面的描述"When they return with food，the fun really begins．Chicks chase their parents，begging for food．Penguin chicks eat huge amounts at one time．"可知，父母覓食回來后，小企鵝追著父母要吃的特別有意思，故選B．
32．C 細(xì)節(jié)理解題．根據(jù)最后一段"This is nature's way of forcing children to grow up．When the penguin chicks are hungry enough，they find their way to the sea．"可知，等小企鵝稍大點(diǎn)父母就不再喂它，強(qiáng)迫它自己去覓食，這是自然生存法則，故選C．
點(diǎn)評 文章描述了企鵝的發(fā)展演變、外貌、生活習(xí)性、哺育后代等內(nèi)容，讓我們更多地了解企鵝．題目涉及多道推理判斷題．推理判斷題不僅要求考生讀懂文章中的每個(gè)句子的意思還要推理它們之間的關(guān)系，結(jié)合自己的生活常識和經(jīng)驗(yàn)，再通過邏輯推理和判斷，理解文章的言外之意，從而揭示文章的深層涵義．推理判斷題的答案不可能在文章中直接找到，因此推理時(shí)我們務(wù)必忠于原文，在文章中尋找并確定可推論的依據(jù)，即：已知部分-推論的前提，從中推測未知部分-推理的結(jié)論，切忌妄加評論，把自己的觀點(diǎn)當(dāng)成作者的觀點(diǎn)．
