题型:阅读选择 题类:真题 难易度:困难
四川省达州市2019年中考英语试卷
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(氧气) 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(养分) 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(多样性)falls.
Darrel and Tanya got married (结婚) last year. Before they got married, Darrel had three sons and Tanya had a daughter. Now they all live together. {#blank#}1{#/blank#} Hiroshi's wife died two years ago. He now raises (抚养) his two sons Tom and Nick by himself. {#blank#}2{#/blank#} Jose and Maria live with their three children. Jose's parents, brother and sister also live with them. {#blank#}3{#/blank#} Bob and Mary have been married for two years. They are both very successful but don't plan to have any children. {#blank#}4{#/blank#} Jack and Betty, who have been married for over 15 years, live with their two children named William and Christin. {#blank#}5{#/blank#} |
A. This type of family is very typical of the so-called "Generation Z". They make pets a part of their lives, almost as if they were their children. B. In an extended family (扩展了的家庭), different family members such as grandparents, aunts, uncles and cousins live together. In many areas of the world, this type of family is common. C. In some countries, couples choose to have only one child because there's a lot of pressure on educating a child well. This type of family is called a single child family. D. Families with only one parent are called single parent families. There are several reasons why this type of family exists. One of the reasons is that one of the parents died. E. When the husband or wife in a marriage brings children with them from a past marriage, this is called a blended family (混合型家庭). They all live together. F. In some families, couples hope to have more freedom. They choose not to have children. This type of family is called a childless family. G. Nuclear families (核心家庭) only consist of (包含) parents and children. There is one child or more children. The parents are raising their children together in the family home. |
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