答案:D [excite意为唤起(兴趣);引起(感情等)。]
.任务型阅读
Freezing weather can mean frostbite(冻疮)and hypothermia (低体温)unless a person is prepared.Today we talk about how to stay warm,dry and safe.
Frostbite is damage that happens when skin is exposed to extreme cold for too long.It mainly happens on the hands,feet,nose and ears.
People with minor cases of frostbite that affect only the skin may not suffer and permanent damage.But if deeper tissue is affected,a person is likely to feel pain every time the area gets cold.
Hypothermia happens when the body cannot produce as much heat as it releases.The condition comes on slowly.Signs of hypothermia include uncontrollable shaking,very slow breathing and difficulty thinking clearly.If not treated,hypothermia can be deadly.
To avoid coldrelated injuries,here is a simple way to remember four basic steps to stay warm,Think of COLD—C.O.L.D.
The C stands for cover.Wear a hat and a scarf to keep heat from escaping through the head,neck and ears.And wear mittens(连指手套)instead of gloves.In gloves,the fingers are separated,so the hands may not stay as warm.
The O stands for overexertion.Avoid activities that will make you sweaty.Wet clothes and cold weather are a bad mix.
The L stands for layers.Wearing loose,lightweight clothes,one layer on top of another,is better than wearing a single heavy layer of clothing.Also,make sure outerwear is made of material that is water resistant and tightly knit.
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