C．Sleep texting can reduce the quality of one’s sleep.
D．Sleep texting does more harm to one’s health than sleepwalking. 【答案】 17.D 18.D 19.B 20.C 21.C 【解析】
试题分析：这篇短文主要介绍了睡眠短信类似于梦游”是一种不寻常的睡眠行为。形成这种行为的原因是频繁的使用手机并发信息。专家说在睡眠中大脑控制运动技能的一部分是醒着的而大脑的控制记忆和判断一部分可能还在睡觉。所以出现了睡眠短信这一现象。
17.细节理解题。细节理解题。根据短文第二段Her phone showed that during the night,
Priedeman had read a text message from her friend. She did it while she was fast asleep.描述，那不是一个梦。她的手机显示,在夜间她读过从她的朋友发来的短信。她睡着的时候做的这件事。故选D
18.细节理解题。根据短文It’s possible for the part of the brain that controls motor skills (动作技能) to wake up, while the part of the brain that controls memory and judgment(判断) may be still asleep.描述，有可能大脑控制运动技能的部分醒来,而大脑的控制记忆和判断一部分可能还在睡觉。可知在睡眠中大脑控制运动技能的一部分是醒着的，故选D
19.词意猜测题。根据上下文可知因为睡眠短信是无意识,所以这是一个难以打破的习惯。故选B。
20.细节理解题。根据根据最后一段描述，可知医生建议在睡觉时将所有电子设备移到卧室以外。故选C。
21.是非判断题。根据But because sleep texting is unconscious, it’s a difficult habit to break.可知A错误，根据 One in three teenagers sends more than 100 text messages a day,可知B错误。根据第三段可知sleep texting is similar to sleepwalkin，故D项错误，根据短文大意，故C正确，故选C。
考点：健康保健类短文阅读。
Happiness is important for everyone. Most people want to be happy but few know how to find happiness. Money and success don’t bring lasting happiness. Happiness depends on ourselves. In other words, we make our own happiness.
Some people believe that if they are wealthy, they will be able to do anything they want, which means happiness. On the other hand, some people believe that holding a high position in the government is happiness. In this way, you have not only money, but also many other things which can’t be bought by money. However, other people believe that having lots of money is not
happiness, nor is holding a high position in the government. These people value(重视) their beliefs, or their intelligence, or their health. They think these can make them happy. Here are a few ways to help you be happier.
The first secret of happiness is to enjoy the simple things in life. Too often, we spend so much time thinking about the future, for example, getting into college or getting a good job, that we don’t enjoy the present. You should enjoy life’s simple pleasures, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have close friends usually enjoy happier and healthier lives.
The second secret of happiness is to be active. Many people go dancing or play sports. People can forget about their problems and only think about the activities.
Finally, many people find happiness in helping others. According to studies, people feel good when they volunteer their time to do many meaningful things for other people. If you want to feel
happier, do something nice for someone. You can help a friend with his or her studies, go shopping to get food for an old neighbor, or simply help around the house. Now maybe you know how to find happiness!
22.The underlined word “wealthy” means “__________” in the article. A．pleased C．excited
B．healthy D．rich
23.Some people who hold a high position in the government think they can _________. A．get money and something they can’t buy with money B．do what they want to do at any time
C．enjoy health which makes them work hard
D．take an active part in all kinds of activities every day
24.The writer thinks the secret of happiness is that people ___________. A．think about getting a good job B．think of presents they don’t like C．often spend time with close friends
D．often spend time on entering the college 25.Many people find it happy to ___________. A．remember the old days and troubles B．do some meaningful things for others C．go shopping to buy some food
D．make much money and little success 26.The passage mainly tells us __________. A．how to find happiness B．how to save happiness
C．to do something good for others D．to value our beliefs or health 【答案】 22.D 23.A 24.C