题目内容
At present, many of the earth's species have died 1 , and others are 2 . Animals and plants must have 3 and clean habitat (栖息地) , 4 there is enough food and other resources. When the 5 is changed or destroyed, they have to either adapt to (适应) the change or 6 a anew home. When a new species (物种) is too strong, some original. (原始的；最初的) species may be 7 . 8 all the living things around us, we human beings could not survive (生存) . Therefore we should take 9 to keep animals and plants 10 becoming endangered.
解析：
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(1) 考查短语辨析。die out意为“灭绝”；die off意为“相继死去”；die down意为“渐渐变弱”；die away意为“渐渐消失”，由以上及句意可知B正确。 (2) 考查词汇。endangered意为“濒危的；要灭绝的”，danger“危险”，dangerous意为“危险的”。故A正确。 (3) 考查句意理解。句意为“动植物必须有舒适、干净的栖息地”。可知D正确。 (4) 考查定语从句。先行词habitat在后面宾语从句中作地点状语，故B正确。 (5) 考查句意理解。由句意“当环境改变或被毁时……”可知D正确，D项是A、B、C三项的综合。 (6) 考查句意理解。由上下文可知句意为“它们得适应这种改变或找到一个新家”。故A正确。 (7) 考查根据句意进行选择。由上下文可知此句应为“……原始的物种处于危险中”。故B正确。 (8) 考查句意理解。由上下文可知B正确。句意为“没我们周围的这些生物，我们人类就不能生存”。 (9) 考查固定短语。take steps /measures /action意为“采取行动／措施”。故D正确。 (10) 考查介词的习惯用法。keep sb /sth from doing sth意为“阻止某人做某事或阻止某事发生”，故C项正确。 |
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