题目内容

16.I don't think it's a good idea,___?(  )
A.is itB.isn't itC.do ID.don't I

分析 我认为这不是一个好主意,对吗?

解答 答案是A.本题考查反意问句.反意问句的基本结构是"陈述句+简略疑问句?",陈述句用肯定,则疑问句用否定;陈述句用否定,疑问句用肯定;疑问句中的主语和助动词与陈述句一致,当陈述句含I (don't) think 等表达说话人本人看法、观点的主句后接宾语从句时,反意疑问句与从句一致,本句中助动词和主语与"it's a good idea"一致;这种句式后的宾语从句否定迁移,反意问句的疑问句部分用肯定;所以答案选择A.

点评 反意疑问句的解题,首先理解反意疑问句的作用--证实上文的内容;其次理解反意疑问句的基本结构;并且积累常见的特殊结构,最后结合语境判断.

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7.Doctors sometimes prescribe light therapy to treat a form of depression in people who get too little morning sun.But too much light at other times may actually cause such mood disorders. Long-lasting exposure to light at night brings depression,a new study finds,at least in animals.
The new data confirm observations from studies of people who work night shifts,says Richard Stevens of the University of Connecticut Health Center.Mood disorders join a growing list of problems,including cancer,obesity and diabetes梩hat can occur when light throws life out of balance by disturbing the biological clock and its timing of daily rhythms.
In the new study,Tracy Bedrosian and Randy Nelson of Ohio State University exposed mice to normal light and dark cycles for four weeks.For the next four weeks,half of the mice remained on this schedule,and the rest received continuous dim light throughout their night.Compared with mice exposed to normal nighttime darkness,those getting dim light at night lost their strong preference for sweet drinks,"a sign they no longer get pleasure out of activities they once enjoyed,"Bedrosian says.
In a second test,mice were clocked on how long they actively tried to escape a pool of water. Those exposed to night lights stopped struggling and just floated in the water,a sign of"behavioral despair",10times as long as the mice that had experienced normal nighttime darkness.All symptoms of depression disappeared within two weeks of the mice returning to a normal light-dark cycle,the researchers report.The scientists also could quash the behavioral symptoms by injecting (注射) the brains of animals with a drug that prohibits the activity of certain molecules linked with human depression.This finding further suggests that light at night may cause something related to depression.
Human studies linking nighttime light and mood disorders are important but can't easily detect molecular underpinnings (分子基础) as animal studies can,says George Brainard of Thomas Jefferson University.The new work,he says,suggests that the change of the biological clock by light at night can be"an extremely powerful force in regulating biology and behavior.

63.After being exposed to continuous nighttime light,the miceD.
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C.remained active as before           D.showed less interest in their favorites
64.What does the underlined word"quash"in Para.4probably mean?C
A.study             B.predict
C.ease              D.cause
65.We can leam from the last paragraph thatA.
A.light at night may have practical value
B.the biological clock is beneficial to humans
C.human mood disorders cannot be healed easily
D.human studies are more important than animal studies
66.What is the main idea of the passage?A
A.Nighttime light may foster depression.
B.A drug has been found to cure mood disorders.
C.The study on animals can be applied to humans.
D.Human biological clock can be controlled by lieht.
11.A popular saying goes,"Sticks and stones may break my bones,but words will never hurt me."However,that's not really true.Words have the power to build us up or tear us down.It doesn't matter whether the words come from someone else or ourselves-the positive and negative effects are just lasting.
We all talk to ourselves sometimes.We're usually too embarrassed to admit it,though.However,we really shouldn't be,because more and more experts believe talking to ourselves our loud is a healthy habit.
This"self-talk"helps us motivate(激发)ourselves,remember things,solve problems,and calm ourselves down.Be aware,though,that as much as 77% of self-talk tends to be negative.So in order to stay positive,we should only speak words of encouragement to ourselves.We should also be quick to give ourselves a pat on the back.The next time you finish a project,do well on a test,or finally clean your room,join me in saying,"Good job!"
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B.Almost everybody has the habit of talking to oneself.
C.Talking to ourselves helps us to solve all the problems.
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8.Do you often feel tired in the morning even though you've been in bed for seven or eight hours the night before?Like many people,you are not sleeping as much as you think you are.In other words,your sleep efficiency is not that good.
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Keep a consistent(一致的) sleep schedule
Go to bed and wake up at the same time,or relatively the same time,every day.Consistency is key to a good night's sleep,especially when it comes to waking up.When you have a consistent wake-up time,your brain adapts to this and moves through the sleep cycle in preparation for you to feel rested and alert at your wakeup time.
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