早教吧作业答案频道 -->英语-->
Recently,asmallgroupofbirdwatchersspentthreeweeksaroundMountVernon,thehomeofthefirstpresidentoftheUnitedStates,GeorgeWashington.TheywerebusycountingwildbirdsonMountVernon'swetlands,southofWashington,D.C.
题目详情
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 to___.
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 be___.
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.
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 to___.
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 be___.
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.
▼优质解答
答案和解析
51-52 DA51.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{%...
看了 Recently,asmal...的网友还看了以下:
设M={y∈R|y=x平方+1,x∈N},P={y∈R|y=-x平方+1,x∈N},求M∩P.写出 2020-04-12 …
已知字母组合成英语单词1、e e t t i n h r 2、e e r a t w h 3、o 2020-05-14 …
比较x^(n+1)+y^(n+1)和x^ny+xy^n(n∈N*,x,y∈R)的值的大小 2020-06-12 …
﹙1﹚比较a2+2与2a的值的大小﹙2﹚比较x^﹙n+1﹚+y^﹙n+1﹚与x^ny+xy^n﹙n 2020-06-12 …
一道求最值的数学题~可能用到偏导数的内容S={12.5[R(100-x)%-J]y%x%+[R(1 2020-06-20 …
关于线性代数与几何分析的问题,请大家帮下忙~设A(-R^n*n,在欧氏空间R^n中,证明:=,其中 2020-06-27 …
设A是n阶矩阵,A=E+xy^T,x与y都是n*1矩阵,且x^T*y=2,求A的特征值、特征向量易 2020-06-30 …
谁能帮我组个英语单词①e、n、o、p、t、w、y②e③d、t、y④b、c、f、m、p、r、t、v⑤ 2020-07-29 …
设集合A={x│x=(-1)^n,n∈N*}是有限集合吗?M={y│y=x^2+1,x∈R}与N= 2020-08-01 …
下列对应是从集合S到T的映射的是()A.S=N,T={-1,1},对应法则是n→(-1)n,n∈S 2020-08-02 …