On a more global level, the destruction of the rainforest for full­sun coffee fields also threatens (威胁) human life. Medical research often makes use of the forests' plant and animal life, and the destruction of such species could prevent researchers from finding cures for certain diseases. In addition, new coffee­growing techniques are poisoning the water locally, and eventually the world's groundwater.

　　Both locally and globally, the continued spread of full­sun coffee plantations (种植园) could mean the destruction of the rainforest ecology. The loss of shade trees is already causing a slight change in the world's climate, and studies show that the loss of oxygen­giving trees also leads to air pollution and global warming. Moreover, the new growing techniques are contributing to acidic (酸性的) soil conditions.

　　It is obvious that the way much coffee is grown affects many aspects of life, from the local environment to the global ecology. But consumers do have a choice. They can purchase shade­grown coffee whenever possible, although at a higher cost. The future health of the planet and mankind is surely worth more than an inexpensive cup of coffee.

　　语篇解读　这是一篇说明文。文章主要说明了在阳光充足的环境中生长的咖啡豆对周围环境的影响。

　　1．What can we learn about full­sun coffee production from Paragraph 4?

　　A. It limits the spread of new growing techniques.

【2017届高考英语外研版一轮复习课时作业：必修3 Module5《Great People and Great Inventions of Ancient China》（含答案）】相关文章：

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 3 A卷 Word版含解析

★ 2017届高考英语二轮复习课时训练：10（含解析）

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 8 B卷 Word版含解析

★ 2017届高考英语二轮复习书面表达限时测验：7（含解析）

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（9）模块3 《Unit 9 Wheels》（含解析） 北师大版必修1

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修2 unit3《Computers》

★ 四川省2016届高考英语一轮复习课时作业（20） Module 2 Traffic Jam 外研版必修4

★ 【浙江专用】2014届高考英语一轮复习课时作业(十九)必修4Unit 4《Body language》

★ 【浙江专用】2014届高考英语一轮复习课时作业(二十六)选修6Unit 1《Art》

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（4）模块2 《Unit 4 Cyberspac》（含解析） 北师大版必修1