2016届高考英语一轮复习 Unit16 Scientists at work课时达标检测新人教版必修1_高考复习指南

2016届高考英语一轮复习 Unit16 Scientists at work课时达标检测新人教版必修1

　　B．Eggs and Cooking

　　C．Raising Hens

　　D．Healthy Diet

　　解析：选D。文章讲述的是有关健康饮食方面的事情，因此选D项合理。

　　Insomnia is the inability to fall asleep or sleep restfully.It is a problem to nearly everyone at some time.A person may be awake for an hour in the middle of the night and then，next morning，feel that he hardly sleep all night.Normally，worry about not getting enough sleep is the

　　worst aspect of most insomnia.If insomnia is recurrent，however，it is important to find its causes and try to correct them，with the help of a doctor if necessary.

　　Any of a large number of simple factors may take it difficult for someone to fall asleep or remain asleep.His matters may be too soft or too hard.If there are too many blankets on a hot night，he may be too warm；if the bedclothes are too light he may feel cold during the night.If it is not dark enough，or too noisy，this may cause difficulty in sleeping.Eating shortly before going to bed also be responsible for insomnia.Stimulating drinks，such as tea or coffee，can also keep people awake.

　　Inability to fall asleep is sometimes a symptom of emotional or mental disorders.Insomnia may also be caused by pain and，very rarely，it can be a symptom of a physical disease.

　　The cause of insomnia may be easy to correct.The sufferer should check the mattress，bedclothes and bedroom temperature，and make any necessary changes.An eye mask keeps out the night and earplugs shut out sound.He should relax for an hour or two before bedtime，perhaps by reading a book，watching TV，or taking a warm bath.If he wakes during the night he should try turning on the light and reading for a while.Taking warm milk and a biscuit or two may be helpful.Above all，he should try not to worry about sleeplessness.When someone is tired enough he nearly always falls asleep.