六、自然环保类

March 22nd is World Water Day.It started in 1993.It not only makes us think about the importance of water，but also calls on（号召）us to 1 and protect water.Today，we're facing terrible water problems.Among them，wastewater problem is especially 2.And the subject of World Water Day in 2017 is “wastewater”.

What is wastewater?It is used water.Usually,wastewater comes from homes, 3,hospitals and so on.It is produced by different kinds of activities,including washing machines,taking showers and using the kitchen.The rain also 4 wastewater when it is running down the street during a storm.No matter where it comes from,this kind of water is sure to have 5 harmful in it.

6 must we treat（处理）wastewater？Wastewater has a big influence on our life.It causes both illness for us and pollution for the environment.We must care for our environment and our own 7.

How can we treat wastewater?Different kinds of wastewater need different ways of treatment.Wastewater 8 homes can be reused.Then there will be 9 wastewater.Also,factory wastewater has to be cleaned 10 it goes back to nature.

语篇解读

本文主要介绍了我们的生活和生产用水受到不同方式的污染以及如何解决废水问题。

答案解析

1.B 由句意可知此处是指节约并保护水。故答案为B。

2.D 由上句中的“terrible water problems”可知，此处指废水问题尤其严重。

3.A 由语境和常识可知废水的来源有工厂。

4.C 由句意可知，此处表示雨水变为废水。

5.B 本句意为“不管它来自哪里，这种水里确实有有害物质”。故答案为B。

6.C 由下文可知该空填why。

7.C 本句意为“我们必须关心环境和关爱我们自己的身体健康”。故答案为C。

8.D 本句意为“来自家庭的废水可以再利用”。故答案为D。

9.A 由上文可知废水会变得更少。

10.D 由语境和常识可知，废水必须被处理和净化才可回归自然。

理论指导

自然与环境类文章主要介绍自然的美好或我们生存的环境存在的问题。我们应在享受自然界美好事物的同时，也要保护自然环境，使人与自然和谐发展。在做此类完形填空时，首先要速读全文，从整体上感知文章，掌握大意。其次要细读内容，尤其是细读每段首句和文中具体细节，注意文章的暗示，找出关键词。最后在答案初选、复核过程中要通盘考虑，以确定答案。