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。

Are you concerned about the effect of the haze(雾霾) in Singapore on the health of your children? Then you should read the following passage.

＂Young children, especially those with lung or heart illness, should avoid outdoor activity at PSI(Pollution Standards Index — used in Singapore) levels above 100,＂ says Dr Biju Thomas.

The immune system(免疫系统) of children is not mature. 16 Exposure to the haze can result in symptoms such as a blocked nose, dry throat, breathing difficulty, and so on.

Children who are exposed to the haze and experience any of these symptoms which are not serious should recover on their own in time if they limit their exposure to the haze. 17

To keep children safe during the haze in Singapore, parents should keep doors and windows closed at home. Ensure children drink plenty of pure water every day.

18 The answer is that there aren’t any N95 masks designed for use by children. That’s because these masks are made to create a seal(密封) around the mouth and nose of the adult user so particles(颗粒) can not get in. 19 Surgical masks may not offer enough protection from the harmful particles in the haze, which is very small (2.5 microns or less). There is usually some gap between the surgical mask and the face, through which the haze particles may easily get in. 20 However, if it is necessary to take children outdoors during a haze, parents may wish to offer children’s surgical mask to their children, if it brings them comfort, such as filtering out the smell from the haze.

A. So during a haze, children are especially at risk.

B. Are N95 masks and surgical masks suitable for children?

C. The available N95 masks may not fit tightly on the face of a child.

D. Allow children to make regular travels from one building to another.

E. However, if the symptoms continue, they should ask a doctor for help.

F. So you can use a conditioner instead of opening the windows regularly.

G. So it is best to keep children indoors to protect them from the haze when the PSI is high.

Answer 1

【答案】

【1】A

【2】E

【3】B

【4】C

【5】G

【解析】

【语篇解读】这篇短文主要提到了如何在雾霾天气保护孩子的身体健康的问题。文章建议，由于孩子的身体免疫系统还不够成熟，也没有适合孩子使用的口罩，在雾霾天最好是让孩子待在室内。

【1】前一句说的是：儿童的免疫系统是不成熟的。后一句说的是：暴露在雾霾当中会导致一些症状，比如鼻塞、嗓子干、呼吸困难等等，故选项A＂因此在雾霾期间，孩子们尤其危险。＂符合语境。

【2】前一句说的是：如果限制孩子接触雾霾，它们引起的症状会自然消失，故选项E＂然而，如果这些症状继续，他们就必须向医生请求帮助了。＂符合语境。

【3】根据后一句中的关键词＂The answer is＂可知此处提出了某个问题，故选项B＂N95口罩和手术口罩适合孩子们吗？＂符合语境。

【4】前一句说的是：这些面罩是单独针对大人设计的，故选项C＂可买到的N95口罩可能与孩子的脸部贴合不太紧密。＂符合语境。

【5】前一句说的是医用口罩也不适合防止这些雾霾，后一句说的是：然而，如果有必要在雾霾天气带孩子到户外去……，故选项G＂因此当PSI特别高的时候，为了保护他们不受雾霾的影响，最好是让他们待在室内。＂符合语境。