题目内容
14.In order to keep the roads clear and safe,we ____ obey the traffic rules.( )| A. | must | B. | need | C. | can | D. | may |
分析 为了保持道路畅通和安全,我们必须遵守交通规则.
解答 答案:A.考查情态动词.句意"为了保持道路畅通和安全,我们必须遵守交通规则.".A必须.B需要.C能.D可以.结合语境"为了保持道路畅通和安全",可知应该用must,语气比较强烈,表主观上的必需.答案是A.
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must,need,can,may的不同用法.结合语境选择正确答案.
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