在职攻硕英语考试

【单选题】Imagine fishermen walking down to the seashore, ready to carry out their early morning routine of preparing their boats and net. (51) they hope for a good catch of fish.But to their (52) , a horrible sight meets their still sleepy eyes. Thousands of fish have been washed ashore deaD、The cause of this mass destruction—A、red tide!
Red tides are a global (53) . They have been observed on both theAtlantic and the Pacific coasts of the United States andCanadA、They have also occurred in many other places. Though relatively few people are (54) them, red tides are not new.
In the Philippines, a red tide was first seen in the province ofBataan in 1908. Since then, red tides have been seen in many other (55) .A、Philippines red tide expert told us that " (56) the fish kills, the Philippines has documented 1, 926 eases of dead shellfish poisoning caused by red tides. "
The term "red tide" (57) the discoloration of water that sometimes occurs in certain areas of the ocean or seA、Although the color is often red, it may also be (58) of brown or yellow. The WorldBookEncyclopedia reports that "the discolored areas may range from (59) a few square yards to more than 2,600 square kilometers. "
What causes such discoloration Red tides are generally caused by several species of single-celled organisms. These tiny organisms have hair-like projections which they use to (60) themselves in water.
A、shadowsB、shadesC、shakesD、shapes
网考网参考答案：B
网考网解析：
[解析] 前一句已经指出“赤潮”这个术语有时用来表示发生在海或洋的某些区域的水变色。所以这里应该是水的颜色。A项表示“阴影，影子”；B项表示“色调，颜色”；C项表示“摇动，颤动”；D项表示“外形，形状”。所以应该选B。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>