Question

【题目】语法填空

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

In the past, human activities _____【1】____ (have) little effect on global warming, but now they have caused the rise of the earth temperature. All scientists agree that the increase in the temperature results ____【2】____ the burning of fossil fuels (化石燃料). One of some byproducts (副产品) ___【3】___ (call) greenhouse gases is carbon dioxide which can trap more heat energy in the atmosphere.

Over the last 100 years, the temperature of the earth ___【4】__ (increase). The ____【5】__ (attitude) towards this rise are completely different. Some are positive ____【6】__ others are negative. Those who are positive think that without the greenhouse gases the earth would be ____【7】___ (cool) than it is, ___【8】___ would not be suitable (适合的) to live on. Others think the rise of the earth temperature may cause severe storms, floods and so on.

___【9】___ (actual), greenhouse gases will continue to build up in the atmosphere. Luckily, we human beings are doing what we can __【10】___ (reduce) greenhouse gases. More importantly, individuals can make a difference.

Answer 1

【答案】

【1】had

【2】from

【3】called

【4】has been increasing

【5】attitudes

【6】while

【7】cooler

【8】which

【9】Actually

【10】to reduce

【解析】

【1】had 考查动词的时态。根据时间状语In the past可知，用一般过去时。

【2】from 考查介词。result from起因于；由……造成。符合句意。

【3】called 考查后置定语。句意：被叫做温室气体的副产品其中一种就是二氧化碳，它能将更多的热能保留在空气中。

【4】has been increasing 考查动词的时态。根据时间状语Over the last 100 years（在过去的100年里），地球的温度一直在上升，并有可能会继续上升，故用现在完成进行时。

【5】attitudes 考查名词。根据后面的谓语动词可知，主语不只是一种态度，故这里要用复数形式。

【6】while 考查连词。句意：一些是积极的而一些是消极的。while表示对比。

【7】cooler 考查形容词比较级。句意：那些积极的人们认为没有温室气体地球会比现在更凉快，这将不适合人类居住。

【8】which 考查定语从句。句意：那些积极的人们认为没有温室气体地球会比现在更凉快，这将不再适合人类居住。引导非限制定语从句，指代前文一句话，用关系词which。

【9】Actually 考查副词。句意：事实上，温室气体将会继续排放到空气中。

【10】to reduce 考查非谓语动词。句意：很幸运，我们人类正在做我们能做的以减少温室气体。此处不定式作目的状语。