高考英语语法:高中英语语法-说明文阅读理解备考策略之二

说明文阅读理解备考策略之二

and Defenses D. How Animals Eat Plant Leaves

[答案与解析]：

69. B 植物保护自身方式判断题。

由原文第三节首句Some plants，such as the oak tree，have thick and hard leaves that are difficult for animals to eat.体现答案。

70. C 植物保护自身方式判断题。由原文第四节This messenger sends to the roots the information to produce more nicotine可以推出答案。

71. B 标题判断题。认真阅读分析原文不难发现，原文第一节末句But plants can defend themselves by using both physical and chemical means.为主题句，全文围绕它展开说明，由此不难找到答案。