As there is less and less coal and oil, scientists are exploring new ways of mak
题型：不详难度：来源：
As there is less and less coal and oil, scientists are exploring new ways of making use of ____ energy, such as sunlight, wind and water for power and fuel.| A．original | B．alternative | C．convenient | D．staple |
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答案
| B |
解析
| 形容词辨析。A原始的；B替代的;供选择的；C便利的；D经常需要的;经常用的；结合句意可知B正确。句意：因为煤炭和石油越来越少，科学家正在寻找新方法利用替代能源。 |
举一反三
We’re expecting Jerry because he’s our _________ visitor who comes here for holiday every summer.| A．familiar | B．regular | C．similar | D．popular |
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--- Where shall we hold the meeting?
--- At any place .| A．where you are convenient | B．that you are convenient | | C．that is convenient for you | D．where is convenient for you |
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Young people are not_________ to stand and look at works of art; they want art they can participate in.| A．content | B．generous | C．confident | D．conservative |
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Paper bags produced every year are ______ the world’s production of vehicles.| A．three times the weight of | B．three times weight of | | C．as three times heavy as | D．three times as heavier as |
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Having completed our adventurous journey through the forest, we went back to our camping site, _______.| A．exhaustedly but excitedly | B．exhaustedly but excited | | C．exhausted but excitedly | D．exhausted but excited |
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