题目内容
15.Recently,a small group of birdwatchers spent three weeks around Mount Vernon,the home of the first president of the United States,George Washington.They were busy counting wild birds on Mount Vernon's wetlands,south of Washington,D.C.They began in the middle of December and worked until the beginning of January.The Audubon Society's first"Christmas Bird Count"took place 115years ago in 1900.At that time,a man named Frank Chapman suggested a new Christmas tradition--that people count birds instead of shooting them around the holiday.
Birds are one of the surest indicators--or barometers--of the health of the ecology.Last year,the bird count recorded over 66million birds of 2,403different species.
Gary Langham is chief scientist with the National Audubon Society.
"The Audubon climate report says that half the birds in North America--314out of 588species--are seriously threatened by climate change.The impacts sort of cut across all birds,all sizes,all kinds,all places".Information from the bird counts has shown that birds are staying farther north during the winter months because of warmer weather.Birdwatcher Jaime Reidy has noted the difference close to Washington,in the state of Virginia."You get to see them at odd times of the year,a little earlier,staying a little later."
Gary Langham says other conditions are affecting bird populations."You can imagine the birds that live along the beach or along the rocky shore line as sea levels are rising around the world. That is impacting them,you know,doubly so."David Yarnold is president of the Audubon Society.In his words,"Christmas Bird Count data is becoming important not only in documenting current climate change,but in predicting the future effects of climate change on North American bird populations.If we know what to expect,we can start taking actions now to do something about it."
51.The underlined word"That"in last paragraph probably refers toD.
A.The beach
B.The rocky shore line.
C.The time of year
D.The rise of sea level
52.The main idea of the passage should beA.
A.Climate change is affecting bird migration
B.People should take actions to stop global warming
C.The bird count records the number of birds every year
D.Birds are one of the surest indicators of health ecology.
分析 这是一篇时文报道类文章.气候变化影响着鸟儿们迁徙的时间、地点和数量.
解答 51-52 DA
51.D 词义猜测题.由最后一段中的"You can imagine the birds that live along the beach or along the rocky shore line as sea levels are rising around the world.That is impacting them"可知,当海平面上升的时候,你可以想象一下那些沿海岸线居住的鸟们.海平面上升正在对他们造成影响.that指代的是海平面上升这种情况.D选项正确.
52.A 主旨大意题.气候变化影响着鸟儿们迁徙的时间、地点和数量.观鸟者们经过100多年的研究得出了上述结论.
点评 阅读理解题测试考生在阅读基础上的逻辑推理能力,要求考生根据文章所述事件的逻辑关系,对未说明的趋势或结局作出合理的推断;或根据作者所阐述的观点理论,对文章未涉及的现象、事例给以解释.考生首先要仔细阅读短文,完整了解信息,准确把握作者观点.
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