题目内容
6.According to a research,butterflies ______ see more colors than humans.( )| A. | must | B. | need | C. | will | D. | can |
分析 根据一项研究,蝴蝶可以看到比人类更多的颜色.
解答 答案:D.考查情态动词.句意"根据一项研究,蝴蝶可以看到比人类更多的颜色".A肯定,语气比较强烈,有命令的意思.B需要.C将会,用于一般将来时态.D可以,能.结合语境,应该是"可以"看到比人类更多的颜色.答案是D.其它不正确.
点评 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语.要注意情态动词的不同用法.结合语境选择正确答案.
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