Question

【题目】根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。

Indoor air pollution belongs to one of the top five environmental health risks. It is a fact that air pollutants in your home may be containing harmful particles(颗粒) for our health. It is a wise way to control it. 【1】

What are the pollutants that come in indoor air pollution?

【2】 Those particulate matters include dust, smoke and other particles which are generated from the combustion(燃烧)appliances such as cooking stoves. It can also contain tiny organism such as viruses, bacteria, dust mites.

___【3】 Building material can also bring pollutants such as paints, cleaning products, pesticides(杀虫剂) and so on. How to deal with indoor air pollution?

There are some ways you can do to deal with your indoor air pollution. 【4】 However, if the contaminants come to the outdoor environment, you have to find an alternative. This cleaning device(装置)can be a good option for your problem.

Air cleaning device is designed to be able to remove virtually all the pollutants contained in the indoor environment. There are basically two types of air cleaning device, whole house air and portable air cleaning device. Portable air cleaner is ideal for small room or specific area. 【5】

A. Generally, indoor air pollution contains pollutants, such as particulate matters and gaseous pollutants.

B. However, it is better to know the harmful particles that come in the air in your home.

C. The gaseous pollutants are mostly generated from the process of combustion including vehicle exhaust, gas cooking stves, and also tobacco smoke.

D. The first thing you can do is to give ventilation(通风) for your home with clean outdoor air.

E. Indoor air pollution contains many harmful chemical matters.

F. Meanwhile, whole house air cleaner can cover larger area in your home.

G. On the contrary, large air cleaner can get rid of all the pollutants.

Answer 1

【答案】

【1】B

【2】E

【3】C

【4】D

【5】F

【解析】

试题分析: 室内空气污染对我们的健康有害, 污染物主要有粉尘烟雾和有害的病菌和尘螨。做法主要是多通风和杀菌。

【1】B 考查对上下文语境的理解。空前的意思是：室内空气污染属于顶级的五个环境健康风险之一。可能含有对我们的健康有害的颗粒。控制它很明智。所以这里选B（然而，知道你家里空气中有哪些有害粒子比较好。）与上文一致。

【2】E考查对上下文语境的理解。空后的意思是：这些颗粒物包括粉尘、 黑烟和其他从燃烧用具如煮食炉中生成的粒子。它还可以包含微小的生物，如病毒、 细菌、 尘螨。所以这里选E（室内空气污染包含许多有害的化学物质。）与下文一致。

【3】C考查对段落的理解。空后的意思是：建筑材料也可以带来污染物，如油漆、 清洁产品、杀虫剂等等。如何处理室内空气污染问题? 所以这里选C（气态污染物主要包括汽车尾气、 煤气炉和吸烟过程中生成的。）与上文一致。

【4】D 考查对上下文语境的理解。空前的意思是：有一些做法可以处理你室内空气污染。空后的意思是：然而，如果污染物在室外环境，你必须找到一种替代品。这种清洗设备可以是解决您的问题的一个很好的选择。所以这里选D（你可以做的第一件事是让您的家和干净的室外空气通风。）与上文一致。

【5】F 考查对上下文语境的理解。空前的意思是：空气净化设备设计必须能够去除几乎所有包含在室内环境中的污染物。基本上有两种类型的空气净化设备: 整个房间的空气过滤器和便携式空气净化设备。便携式空气滤清器是理想的小房间或特定区域。所以这里选F（而，整个房间的空气过滤器可以覆盖您家更大的区域。）与上文一致。