[解析]
(1)D.细节理解题。根据第二段第二句Scientists first noticed and described mucilage in 2007,when it was found near Turkey(科学家们第一次注意到并描述粘液是在2007年,当时它在土耳其附近被发现。)可知,这种黏液最初是在土耳其附近被发现的(It was first noticed near Turkey.)。故选D项。
(2)C.词句猜测题。根据第四段画线词后的which results in algae growing quickly and in huge numbers(导致藻类大量快速生长)可知,当海藻的养分充足,其它条件也正合适时,海藻会大量繁殖,过度生长(The explosive growth of algae.)。A.A good harvest of algae藻类丰收;B.The increasing use of algae藻类的使用增加;C.The explosive growth of algae藻类的爆炸性生长;D.A continuing popularity of algae藻类的持续流行。故选C项。
(3)A.推理判断题。根据最后一段第一二句The mucilage causes problems in lots of different ways.For one thing,by covering the ocean's surface,it stops sunlight from reaching all the sea life below.(黏液在很多方面都造成了问题。首先,它覆盖了海洋表面,阻止阳光照射到下面所有的海洋生物。)以及 第二句That means that there's very little oxygen left for the other sea creatures that depend on it.(这意味着其他依赖氧气生存的海洋生物所剩的氧气非常少。)可知,这种海洋黏液对海洋生物的危害极大(It can greatly threaten sea life.)。故选A项。
(4)B.标题归纳题。根据文章第一句Sea life near Turkey is being threatened by a layer of brown foam on the ocean s surface.(土耳其附近的海洋生物正受到海面上一层棕色泡沫的威胁。)结合全文,可知本文主要报道了土耳其海域海藻大量繁殖,形成了很多海洋黏液,给海洋生物造成了威胁,所以B项Turkey's coastal waters are covered with mucilage(土耳其的沿海水域覆盖着粘液)作为标题最合适。故选B项。