Question

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。 　　A study published in today's edition of the Science finds that, overall, species are moving to higher latitudes(纬度)at l0.5 miles per decade．The rate is two or three times faster than when it was last measured, in 2003． 　　“The climate is shifting everything toward the north and higher altitudes,”says Chris Thomas, the author on the paper and a professor at the University of York in the United Kingdom．Animals, plants and insects closer to the equator ‘‘are starting to find it too hot and are retreating upwards．” 　　The study was an analysis covering 764 species moving north or south depending on which hemisphere(半球)they were in．Although each species moved at different rates and some even moved towards the equator, overall the strong trend was toward the poles． 　　For the most part, it's not that animals are walking, hopping or winging their way north, Thomas says．Rather, individuals at a species’ southernmost range are breeding(繁殖)less successfully while individuals in that same species’ northernmost range are breeding more successfully．The result is that the entire species moves up． 　　“There is practically no basis to doubt the fact that species are shifting as a function of rapidly changing climate,”says Jeremy Kerr．a professor of biology at the University of Ottawa in Canada, who did not participate in the study．One species Kerr studies is the bog copper, a beautiful little butterfly that appears to practically be on an expressway to the North Pole．It has moved more than 90 miles north in the past decade． 　　For farmers, what crops they grow and livestock they keep is also beginning to shift, says Philip Thornton, an agricultural economist in Nairobi, Kenya．In Africa, small farms are changing the kinds of animals they keep．In Northern Kenya, there is a move in some places away from the traditional cattle to camels, which are more drought resistant; the price of adult camels there is increasing quite rapidly． (1) Which picture can describe the result of the study? (2) According to the third paragraph, we can learn a fact that ________． [　　] A． the animals are moving northward so fast B． there are too many species on the poles C． fewer babies are born in the south D． not all animals move to higher latitudes (3) The example of the bog copper is mentioned to tell us that it ________． [　　] A． can fly as fast as an express B． is moving northwards at a high speed． C． blocks the way toward the North Pole D． prefers to travel on an express (4) In the last paragraph, farmers prefer camels ________． [　　] A． because of changes in temperature B． as a result of animals moving northwards C． with the purpose of earning more money D． due to the changes in crop growing (5) We can infer from the passage that ________． [　　] A． immediate actions have be taken to prevent the immigration B． rare animals can only be found at poles in not so far future C． it is natural for species to adapt themselves to environment D． changes in climate make no differences about people's life

Answer 1

答案：1．A;2．D;3．B;4．A;5．C;