One recent study demonstrates that the brown widow spider is less poisonous than other widow species. The reason for the weaker effect of brown widow bites on humans is possibly because the brown widow does not have much poison as its larger relatives, but it is really a threat to humans as to its poison. The two major symptoms of a brown widow bite are that the bite hurts when it is given and it leaves a red mark. These two symptoms are not much different from the bite of normal household spiders.

　　There is no specific information regarding the control of brown widows by farm chemicals. Most current advice is what is used for controlling spiders in general. Therefore, most commercially available farm chemicals should work on brown widows. Avoiding a mess of the house and the garage should reduce nest sites for them. Also, one should store garage items in plastic bags where there might be interactions with spiders. These items include rarely worn garments such as gardening clothes and gloves, recreational items like sports equipment(i.e., baseball gloves) and other items where spiders can crawl up into holes where fingers can be inserted.

　　5．The author wrote this article to ________.

　　A．announce the result of a research on spiders

　　B．introduce the ways to get rid of the spiders

　　C．report a new finding of the widow species

　　D．warn readers against the brown widow

【2016届高考英语二轮专题限时训练：（33）史地自然型阅读理解（1）】相关文章：

★ 四川省广安市2014高考英语一轮基础训练题（10）及答案

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文：命题趋势（含解析）

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之夹叙夹议文：考纲分析（含解析）

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习短文改错专题训练：考法3 行文逻辑错误（含解析）

★ 2017届高考英语二轮复习大题冲关秘籍语法填空：创新押题（含解析）

★ 2017届高考英语二轮复习书面表达限时测验：7（含解析）

★ 四川省广安市2014高考英语一轮基础训练题（6）及答案

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练：3（含解析）

★ 2017届高考英语二轮复习书面表达限时测验：2（含解析）

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练：7（含解析）