As you can see，water works hard in your body every day.That’s why it’s important to give your body the water it needs to carry out all its different jobs.On a regular day，your body loses 2 to 3 quarts of water—enough to fill a 2liter soda bottle.You probably guess that water is lost when you sweat—especially on a hot day.
But your body also loses water in an almost invisible way—evaporation (蒸发)．Water escapes from your body through your skin and in your breath.How？Your breath contains droplets (小滴) of water that are usually too tiny to see.They become visible for a quick second in the cold when you can “see your breath”．But water evaporates this way all year round.Your skin also contains water，which escapes in tiny droplets that go into the air.The water in your skin evaporates into the air，but fortunately，your body can replace the water it loses so your skin doesn’t dry out.
Eating and drinking is one way to replace the water your body loses.Most foods have a lot of water in them，especially fruits and vegetables.Grapes，watermelons，oranges，and cantaloupes are delicious and full of water.
But you can’t rely_on food alone to get that water back，and that’s why it’s also a good idea to drink water every day.You might have heard someone say that people need to drink 6 to 8 cups (1.4 to 1.9 liters) of water each day.Depending on how much water you’re getting from foods and other liquids,6 to 8 cups might not be necessary.If you eat a lot of fruits and vegetables，or you like to eat soup every day，you’ll get some of the water your body needs.
小题1:You should drink enough water every day because________.
A．your body needs too much water
B．water does all kinds of jobs in your body
C．your body loses a lot of water every day
D．the more water you drink the better you feel小题2:Water in your body loses by the following ways EXCEPT________.
A．breathing
B．evaporating
C．sweating
D．eating小题3:Your body has to give enough water to your skin in order to________.
A．keep the water in your skin clean
B．stop your skin from drying out
C．stop the water from losing
D．keep your skin clean all the time小题4:What does the underlined phrase “rely on” in the fourth paragraph mean?
A．Eat up.
B．Receive.
C．Depend upon.
D．Digest.
小题1:C
小题2:D
小题3:B
小题4:C
小题1: C
解析 细节理解题。根据第一段可知，人喝水的主要原因是人体每天都通过各种途径失去很多水，为了保持人体的水平衡，人们才需要不断地喝水。
小题2: D
解析 细节理解题。根据第一段最后一句和第二段前两句可知，出汗、蒸发及呼吸是人体消耗水分的途径，而吃饭是获得水分的有效途径，所以D项符合题意。
小题3: B
解析 细节理解题。根据第二段最后一句中“...but fortunately，your body can replace the water it loses so your skin doesn’t dry out.”可知，人体为皮肤提供水分是为了使皮肤不干燥。
小题4:C
解析 词义猜测题。根据上文并联系下文的“...and that’s why it’s also a good idea to drink water every day.”可判断，该词组的意思是“依靠”，只靠吃水果、蔬菜来补充水分是不够的。