Question

【題目】

Many environmental groups are warning that oceans of the world are in great danger．In the past 50 years，the number of water with zero oxygen（氧氣）in the open ocean has increased more than four times．In the near coast water bodies，including the river mouth and seas，low﹣oxygen areas have increased more than 10 times since 1950．Scientists discover that oxygen continues dropping ever outside these zones as the Earth warms．To stop the drop，the world needs to control in both climate change and nutrient（養(yǎng)分）pollution．

Oxygen is a must to life in the oceans．The drop in ocean oxygen is among the most serious effects of human activities on the Earth's environment．

This is the first time for the scientists to take such a deep look at the causes，results and solutions to low oxygen worldwide，in both the open ocean and the near coast waters．About half of the oxygen on Earth comes from the ocean．However，mixed effects of nutrient loading and climate change are greatly increasing the number and size of "dead zones" in the open ocean and the near coast waters，where oxygen is too low to support most sea life．

In the areas traditionally called "dead zones", like those in Chesapeake Bay and the Gulf of Mexico，oxygen drops to levels so low that many animals have trouble in breathing and die．As fishes run away from these zones，their living areas become smaller and smaller．But the problem goes far beyond "dead zones"．Even smaller oxygen drops can hold up the growth in animals and lead to disease or even death．Low oxygen also can cause the release of dangerous chemicals．Although a few animals can grow well in dead zones，overall biodiversity（多樣性）falls．

【1】How to stop the drop of ocean oxygen in the article？

A. By controlling in both climate change and nutrient pollution around the world．

B. By taking a deep look at the causes， results and solutions to low oxygen worldwide．

C. By running away from these zones， for the living areas become smaller and smaller．

D. By cutting down the number of animals in the oceans．

【2】Why are these waters called"dead zones" from the article？

A. Because the oxygen in these areas is too low for most sea life to live．

B. Because nutrient loading and climate change are greatly increasing．

C. Because there are no animals living in these areas．

D. Because low oxygen also can cause the release of dangerous chemicals．

【3】Which of the following statements is TRUE according to the article？

A. Only a few animals living in the sea need oxygen．

B. Climate change can help cut down the dead zones．

C. Fishes grow faster and better in low oxygen areas．

D. Human activities have many serious effects on ocean environment．

Answer 1

【答案】

【1】A

【2】A

【3】D

【解析】

短文大意：本文是環(huán)保類閱讀，介紹了過度捕撈對海洋產(chǎn)生的破壞以及由此帶來的系列問題，呼吁人們團結(jié)起來建立"禁漁區(qū)"以保護海洋。

【1】A．細節(jié)理解題．根據(jù)To stop the drop，the world needs to control in both climate change and nutrient pollution為了阻止這種下降世界需要控制氣候變化和營養(yǎng)污染，可知By controlling in both climate change and nutrient pollution around the world符合文意，故選A。

【2】A．細節(jié)判斷題．根據(jù)where oxygen is too low to support most sea life氧氣太低無法維持大部分海洋生物，可知這些水域被稱為“死亡地帶”，是因為這些地區(qū)的氧氣太低導致大多數(shù)海洋生物無法生存，Because the oxygen in these areas is too low for most sea life to live符合文意，故選A。

【3】D．細節(jié)判斷題．根據(jù) The drop in ocean oxygen is among the most serious effects of human activities on the Earth's environment海洋氧的減少是人類活動對地球環(huán)境最嚴重的影響之一，可知人類活動對海洋環(huán)境有許多嚴重的影響，Human activities have many serious effects on ocean environment說法正確，故選D。

本文篇幅較長，難度適中，考生應(yīng)認真閱讀文章，理解大意，仔細審題，準確定位信息，在文中找到相對應(yīng)的答案或者依據(jù)。