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归纳:decrease既可用作不及物动词,又可用作及物动词。它与不同 的介词搭配表示不同的含义,decrease to表示“减少到(数 目)”,decrease by表示“减少了(数目)”。
1)阅读下面的句子,体会黑体词的词性及含义 Half of the companies in the survey reported a decrease in sales. 在调查中,有一半的公司表示销售额(量)下降。 词性:名词 含义:下降;减少
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2)辨析:decrease和reduce The population in some European countries began to decrease. 有些欧洲国家的人口开始减少。 The driver reduced the driving speed.司机减慢了车速。 归纳:decrease 指“渐渐地减少”;reduce指“人为地减少、降低”,强调 在大小、程度或强度方面下降或减少。 3)反义词:increase v.& n. 增加,加大 If their marketing plans succeed,they will increase their sales by 20 percent. 如果他们的营销计划能够成功,他们将提高20%的销售量。
4.The whole nation is in a state of fear following the attacks. panic
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5.She could see that all the other girls were green with jealousy. envy
6.No wonder you didn’t make any effort to ask us,you know what we’d have said. bother