专升本考试

【单选题】Today almost 70% of the electrical power we use comes from power plants that use fossil fuels (矿物燃料) to make electricity. Fossil fuels, such as oil, coal, and natural gas, are burned to make electricity.Burning fossil fuels releases pollution and carbon dioxide gasCO2) into the air. The more fossil fuels we burn, the warmer the air aroundEarth gets. So building fossil fuel plans is not always the best answer.
Actually, there are other ways to make electricity without burning fossil fuels. People have been using the power of wind for centuries. Wind power won’t solve all our energy problems, but it can help meet some of the demands in certain places. Since the late 1800s, scientists have been working to turn the sun’s energy into electricity by using solar cells (太阳能电池). The problem is, solar cells are very expensive.Another way to make electricity is to use nuclear energy. It has been used for more than 50 years. Today about 10 percent of all the electricity used in the U.S.A、comes from this source.
Although nuclear power doesn’t pollute the air as the burning of fossil fuels does, there is a major drawback . The waste products from nuclear power plants are dangerous and must be stored in safe places. Many people are concerned about the safety of nuclear power.
What does the underlined word “drawback”(in ParA、3)mean
A．effect B．advantage
C、disadvantageD．concern
网考网参考答案：C
网考网解析：
[解析] 本题是词语理解题。第三段第二、三句的主要谈的是核电厂的核废料及其危险，人们担心核电厂的安全。由此可以得知，drawback应该指的是核电厂的不利之处。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>