题目内容：

How to Get Water to Survive in the Woods

Have you ever been on a hike in the woods admiring the great views, and suddenly found yourself completely alone and lost?1. But surviving alone in the wild is generally a matter of common sense, patience, and wisely using the gifts that nature provides.

Finding a good source of water is one of the most important things to do in order to survive in the woods.2. But by the end of the second day you're not going to be in very good shape; find water before then.

3. But the chances of finding it are slim. You should look out for nearby birds, because they like to fly around fresh water. A running stream is your next best bet. You may be advised that drinking water from streams can lead to some sicknesses, but when you're in a life or death situation, the risk of illness is a secondary consideration.4. If there are tiny water drops on the leaves and you're desperate, you can gather them in your clothes and then suck the water out of the fabric.

Purify (净化) your water. A good method of water purification is to take your handy pot and heat the water. If you want to effectively kill bacteria, it must be at a rolling boil for at least three minutes.5.And then set it in the sun for six hours to kill most of the organisms. If you have any, add some salt to the water to try to bring the sediment(沉淀物) to the bottom.

A．When you hike, always bring water.

B．You can also put water in a clear plastic bottle.

C．Any disease you may get can be treated when you return.

D．You can last up to three days without water.

E．Be sure you can always find your way back.

F．Being lost in the woods can be a frightening experience.

G．The best source of water is a spring.