were seeking a natural water filter—one that would help communities in developing countries that do not have __6__(accessible) to modern water filter systems.

　　The __7__(research), led by Professor Rohit Karnik, decided to turn to trees for help because they could allow liquid to flow through, while blocking out air bubbles.

　　They began by cutting 1.5­inch­wide sections of tree bark from the branches of a white pine tree. The people related then tested the wood's filtering ability by pouring water containing red dye particles of different sizes through. __8__ their amazement, they found that it was effective in trapping all the articles.

　　__9__(encourage), the team conducted

　　__10__ experiment, this time with water that contained bacteria. Sure enough, the sapwood held back 99% of the bacteria, allowing only 1% to flow through.

　　1．______ 2.______ 3.______ 4.______ 5.______

　　6．______ 7.______ 8.______ 9.______ 10.______

　　文章大意：树木作用巨大。最新研究表明，它们能去除水中的细菌。

　　1．命题立意：考查同位语从句。

　　答案：that　此处是同位语从句，又因为从句中不缺少成分，故选用从属连词that。

　　2．命题立意：考查形容词和副词的转换。

　　答案：importantly　此处most importantly是在修饰谓语动词provide，故用副词。句意为“他们为我们提供了食物和木头，更重要的是提供了氧气”。

【2017届高考英语一轮基础知识复习：Unit 1 Great Scientists（新人教版必修5）】相关文章：

★ 四川省2016届高考英语一轮复习课时作业（28） Module 4 Carnival 外研版必修5

★ 2017届高考英语二轮复习大题冲关秘籍语法填空：考纲解读（含解析）

★ 盘点2016年高考英语二轮复习最笨最好的方法

★ 【人教版】2014届高考英语一轮复习指导考点针对练：选修8 unit4《Pygmalion》

★ 2014届高考英语一轮复习课时作业(三十三)选修6Module 3《Music》（外研版）

★ 2014届高考英语一轮复习课时作业(四十五)选修8Module 3《Foreign Food》（外研版）

★ 2017届高考英语一轮基础知识复习课件：必修5 Unit 1 Great Scientists（新人教版）

★ 【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）

★ 四川省2016届高考英语一轮复习课时作业（46） Module 4 Which English 外研版选修8

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（5）附答案