A
Sunstroke (中暑) is a condition that can quickly go from dangerous to deadly，especially if proper care isn't given immediately.
Sunstroke，sometimes called heatstroke，is a result of the body temperature rising above the safe limit.This causes the body's necessary functions to stop working.
It's usually pretty easy to avoid sunstroke，as long as proper action is taken.In that case，you need to act as quickly as possible to return that person's body to a safe temperature.Here are a few tips to help treat sunstroke.
Call for help
Call to get an ambulance as quickly as possible.This should be the first thing you do，especially if the sunstroke person has fainted (昏倒)．Also，call for help from anyone nearby if you're in a public place.If there's no one around，call someone nearby if they can get there sooner than an ambulance.Ask everyone to bring you as much water as possible，if there isn't much nearby.
Get the person to a cooler area
If there's a building nearby，aim for that.Anywhere with plenty of air conditioners and water is perfect.If a building isn't available，bring the person to a wellshaded area.
Get the water flowing
If the person is still conscious，get him or her to drink water.If there's a bathtub available，fill it with cool water and put the person in it.
If your water supply is limited，you have to save it.Dampen a towel or shirt and put it on the person's body.Focus on the face，neck，and chest.
Fan the person
Getting moving air over the person cools him or her down.Use anything，a towel or sheet，a shirt，your hands，or a piece of board.This is where having many people around really helps，as they can combine to fan the entire body.
【语篇解读】 本文是一篇说明文。文章介绍了中暑的危害以及中暑后的一些急救措施。
1．When does a person get sunstroke?
A．When the body doesn't function.
B．When proper care is given immediately.
C．When someone is exposed to the sun too long.
D．When the body temperature goes up beyond what one can bear.
D [细节理解题。根据第二段的第一句可知，当人体的体温超过所能承受的安全极限时，就会中暑，即D项正确。]
2．Which of the following is NOT mentioned in the text?
A．Call for assistance from others.
B．Leave the sunstroke person in the shade.
C．Put a wet towel on the person's face.
D．Help the person take some medicine.
D [细节理解题。根据Call for help中的第三句可知A项正确；根据Get the person to a cooler area中的第三句可知B项正确；根据Get the water flowing中的第二段的第二、三句可知C项正确；D项在文章中没有提到。]
3．What is mainly discussed in the passage?
A．The first aid for sunstroke.
B．The causes of sunstroke.
C．The chief symptoms of sunstroke.
D．The essential prevention of sunstroke.
A [主旨大意题。文章首先介绍了何为中暑以及中暑的危害，结合第三段的最后一句“Here are a few tips to help treat sunstroke.”可知，下文讲述的是中暑时需要采取的急救措施，即A项正确。]
4．The text probably comes from a(n) ．
A．guidebook B．book review
C．medical magazine D．official document
C [文章出处题。文章主要介绍了中暑以及中暑后如何急救的相关知识，故有可能选自一本医学杂志，即C项正确。]
