Question

7．A seabird named Lydia recently made a 26-day nonstop（不間斷的）journey of about 2，500miles，just to search for food for her baby．She is fitted with a satellite tracking device（衛(wèi)星跟蹤儀）．Her trip started on Oct.18from Christmas Island in the Indian Ocean．The trip is known as the longest nonstop journey by one of these endangered seabirds．
Before that，this kind of birds was known only to fly a few hundred miles from where they live，staying away for just a few days at a time．They usually fly over the sea．The Scientists feel it strange that Lydia made such a long，nonstop Journey and flew overland．So the above facts raise some serious questions about efforts to stop the decline（減少）of the birds．The number of the birds，has fallen by l0 percent over the past 20years．
Besides，the scientists are surprised that she was away from her baby for such a long time．They wonder why she needed to go that far．Maybe it shows that fish resources（資源）around Christmas Island are not large enough now．That might explain the slow decline of the bird--sea pollution is serious．
86．Why did Lydia make such a long and nonstop journey？Because she wanted to search for food for her baby．
87．How far does this kind o f birds usually fly at a time？They usually fly a few hundred miles at a time．
88．What do you know about the number of this kind of seabirds？The number has fallen by 10 percent over the past 20 years．
89．What do the scientists think Lydia's long journey may show？Fish resources around Christmas Island are not large enough now．
90．What can we learn from Lydia's journey？We should try to protect our environment．

Answer 1

分析 一種叫"Lydia"的海鳥為了給孩子們找食物，不遠(yuǎn)千里穿越陸路．這說明了海污染越來越嚴(yán)重，海里的魚類越來越少，而海鳥的數(shù)量也在逐年減少．

解答 86．Because she wanted to search for food for her baby． 細(xì)節(jié)理解題  根據(jù)"A seabird named Lydia recently made a 26-day nonstop（不間斷的）journey of about 2，500miles，just to search for food for her baby"可知，它不遠(yuǎn)千里只是為了給孩子尋找食物，故答案為Because she wanted to search for food for her baby
87．They usually fly a few hundred miles at a time． 細(xì)節(jié)理解題  根據(jù)"this kind of birds was known only to fly a few hundred miles from where they live"可知，這種鳥通常只飛幾百英里，故答案為They usually fly a few hundred miles at a time
88．The number has fallen by 10 percent over the past 20 years．推理判斷題  根據(jù)"The number of the birds，has fallen by 10 percent over the past 20 years．"可知，鳥的數(shù)量在過去的二十年里減少了百分之十．故答案為The number has fallen by 10 percent over the past 20 years
89．Fish resources around Christmas Island are not large enough now．細(xì)節(jié)理解題  根據(jù)"Maybe it shows that fish resources（資源）around Christmas Island are not large enough now．"可知，鳥的長途飛行說明了海里的魚類數(shù)量不夠多了．故答案為Fish resources around Christmas Island are not large enough now
90．We should try to protect our environment．  推理判斷題  根據(jù)"That might explain the slow decline of the bird--sea pollution is serious"可知，由于海水污染嚴(yán)重，鳥兒的數(shù)量也在下降，所以我們應(yīng)該保護(hù)環(huán)境．故答案為We should try to protect our environment

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