B.the forest elephant
C.the savanna elephant
D.the mastodon elephant
()2.The underlined word “divergence” in paragraph 4 means “________.” A.evolution B.exhibition
C.separation
D.examination
专题八 │真题典例 ()3.The researchers' conclusion was based on a study of the African elephant's ________. A.DNA
B.height C.weight
D.population ()4.What are Alfred Roca's words mainly about? A.The conservation of African elephants. B.The purpose of studying African elephants. C.The way to divide African elephants into two units. D.The reason for the distinction of African elephants. ()5.Which of the following can be the best title for the passage? A.Naturalists' Beliefs about Elephants B.Amazing Experiments about Elephants C.An Unexpected Finding about Elephants D.A Long Scientific Debate about Elephants 专题八 │ 新题预测
【要点综述】本文为科普说明文。主要介绍关于大象的最新研究成果:非洲大象被分成两种完全不同的品种——非洲草原大象和非洲森林大象。 1.D 细节理解题。根据第三段 “Once they obtained DNA sequences(序列)from two fossils(化石),mammoths and mastodons, the team compared them with DNA from modern elephants.”可判断选D。 2.C 词义猜测题。根据第四段“The scientists used detailed genetic analysis to prove that the African savanna elephant and the African forest elephant have been distinct species for several million years.”可知,科学家已证实,非洲的草原大象与非洲的森林大象几百万年来都不属于同一品种,即可推断下句为“两种大象的分离应发生在……”。由此可推断划线词应意为“分离”,故选C。 专题八 │ 新题预测
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