問題詳情

An endangered species is in immediate danger of dying out completely, or becoming extinct. Its numbers are low andit needs protection in order to survive. There are more than 1,000 endangered animal species worldwide; the Siberiantiger and the snow leopard are two examples. There are many factors that can cause an animal or plant species tobecome endangered. The main cause of species endangerment is humanity’s destruction of both aquatic and terrestrialhabitats. Deforestation and soil, air, and water pollution can all destroy a habitat. Other natural causes, such as changesin the weather, can also introduce an exotic species to a new environment. This exotic species may not be able to livewith the native species, and the result may be the destruction of the native species or its natural habitat. To preservethe quality of our lives, and the lives of future generations, we must protect plant and animal species now, and in thefuture.
31. In line 2, the word extinct means __________.
(A)very dangerous
(B)no longer living
(C)nearly dead
(D)not dead yet

參考答案

答案：B
難度：簡單0.818182
統計：A(0),B(9),C(2),D(0),E(0)

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