四级阅读理解ice

四级阅读理解ice
Ice is water, but once it contains gas, it can become a combustible energy. American scientists recently conducted a feasibility study on the exploitation of a compound of methane and water sealed in ice. Hull of the U.S. Geological Survey said that this material is much like dry ice, which can be burned and stored 450 meters below the seabed of the continental shelf.
It is estimated that this kind of combustible ice contains twice as much energy as the total combustion of minerals. At the annual meeting of the American Association for the advancement of science and technology, an expert group pointed out that exploiting this rich energy may be a major challenge facing contemporary scientific engineering. Combustible ice buried deep under the seabed or permafrost was formed in hundreds of thousands of years after the combination of methane produced by biochemical action and hydration.
Once it leaves the underground high-pressure area, it will
disappear into the air. Deron of the U.S. Geological Survey warned that this is a very difficult and cautious thing. An accident can cause the seabed to collapse, resulting in a large release of methane, which will greatly aggravate the global greenhouse effect and seriously damage the environment.
This part of combustible ice contains three times as much methane as the current atmosphere, and the greenhouse effect produced by methane is 10 times that of carbon monoxide. Later this year, the United States will send an exploration team to the coast of Carolina to explore a combustible ice deposit equivalent to Rhode Island, which contains 30 trillion cubic meters of methane, which can be used by the United States for 70 years.
1. The following is a wrong understanding of the concept of methane and water compounds sealed in water in the text
A. This is combustible ice buried deep under the seabed or permafrost.
B. This is a kind of potential energy that can be burned and needs to be exploited.
C. This is dry ice like combustible material stored 450 meters below the seabed of the continental shelf.
D. This is a compound of methane and water produced by biochemical action over hundreds of thousands of years.
2. What Delong wants to emphasize is
This part of combustible ice contains three times as much methane as the current atmosphere, and the greenhouse effect produced by methane is 10 times that of carbon monoxide.
A. Combustible ice contains a large amount of Methane, once exploited, will greatly aggravate the global greenhouse effect and seriously damage the environment.
B. The exploitation of combustible ice is a difficult and cautious thing.
C. Combustible ice is rich in methane, which is of great exploitation value.
D. These flammable ice rich in methane can be used in the United States for 70 years.
3. One of the following statements in line with the original
meaning is
A. The United States will send an exploration team to Rhode Island off the coast of Carolina to explore the reserves of combustible ice.
B. Hull and Deron of the U.S. Geological survey believe that combustible ice is a rich new energy source.
C. The United States has not really used combustible ice as an energy source, but is only studying the feasibility of mining it.
D. An expert group at the American Council for the advancement of science and technology stressed that the exploitation of combustible ice is a major challenge facing scientific engineering at present.
4. If you summarize this scientific and technological information in one sentence, the most accurate one is
A. American scientists have discovered a new energy source -- combustible ice.
B. American scientists are actively studying the use of combustible ice.
C. Scientists in the United States have conducted a utilitarian study on whether combustible ice can be mined.
D. American scientists will explore the combustible ice on the Carolina coast.
答案
1、D
2、B
3、C
4、C。