“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. (367W)

　　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 northwards so fast

　　B. there are too many species at 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 towards the North Pole

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