Question

    Many of us have developed the bad habit of staying up late. It is_______for our health.

The Sleep Research Center at the University of Surrey found a direct link_______the time of sleeping and genes （基因). Each cell （细胞) in our bodies _____some information in our DNA that acts as a kind of operating instruction. ______, each cell only reads a part of the instruction it needs.   Professor DerkJan Dijk asked,“Can ______affect how a gene reads instructions?” He carried out an experiment and asked his ______to spend a week sleeping around seven hours to eight hours a night. And then the next week he______them to sleep six to seven hours a night.

Blood samples were taken each week to compare______genes were in blood cells. They were being used during the long and ______nights.

It is clear that changing the time of sleeping can______our genes, which influence our health. And we may fall______more easily when we sleep less. The important message is that getting sleep about eight hours a night can make an exciting _____to our health in just a few days. It is in this way that it_______our genes. So stop staying up late to listen to______broadcast, read one more chapter, have one more drink or do a little bit more work.______you don’t think it will make some differences, you will regret. Anyway, going to bed early and getting up early is a good habit.

1.A.real B.easy C.kind D.bad

2.A.between B.around C.in D.under

3.A.hurts B.makes C.carries D.goes

4.A.However B.Especially C.Luckily D.Quietly

5.A.study B.play C.sleep D.sing

6.A.workers B.volunteers C.doctors D.students

7.A.asked B.stopped C.prepared D.enjoyed

8.A.what B.which C.how D.why

9.A.small B.dark C.short D.brave

10.A.eat B.change C.bring D.sell

11.A.ill B.smart C.sad D.shy

12.A.difficulty B.difference C.importance D.invitation

13.A.looks after B.looks around C.looks for D.looks like

14.A.other B.another C.others D.the other

15.A.Until B.Unless C.If D.When

Answer

1.D

2.A

3.C

4.A

5.C

6.B

7.A

8.B

9.B

10.B

11.A

12.B

13.A

14.B

15.C

【解析】

本文是一篇说明文。主要介绍了熬夜对基因的影响。

1. 考查形容词词义辨析。句意为：这对我们的健康是________。real真实的；easy容易的；kind善良的；bad坏的。从上句“Many of us have developed the bad habit of staying up late.”可知，作者认为熬夜是一种坏习惯，对我们的健康不好。故选D。

2. 考查介词词义辨析。句意为：萨里大学的睡眠研究中心发现，睡眠时间与基因之间有直接联系。between 两者之间；around （在三者及三者以上）之间；in在……里面；under在……下面。分析语境可知，空格处指“两者之间”。故选A。

3. 考查动词词义辨析。句意为：我们身体的每个细胞________我们DNA的信息，这些信息充当操作指令的角色。hurts 伤害；makes制造；carries携带；goes去。根据语境可知空格处意指“携带信息”。故选C。

4. 考查副词词义辨析。句意为：________，每个细胞只读取它需要指令的一部分。However然而；Especially尤其是；Luckily幸运地；Quietly安静地。联系上句“Each cell（细胞） in our bodies 3 some information in our DNA that acts as a kind of operating instruction.”可知，本句与上句之间是转折关系。因此“However”用在这里符合语境，指每个细胞自身具有缺陷性。故选A。

5. 考查名词词义辨析。句意为：________会影响基因如何读取指令吗？ study学习；play玩耍；sleep 睡眠；sing唱歌。从上文“The Sleep Research Center at the University of Surrey found a direct link between the time of sleeping and genes.”可知选C。

6. 考查名词词义辨析。句意为：他做了一个实验，让他的________一周每晚睡七到八个小时。workers工人们；volunteers志愿者们；doctors医生们； students学生们。这里描述的是教授做实验的方法，实验主体应该是参与实验的志愿者们。故选B。

7. 考查动词词义辨析。句意为：然后下一周，他________他们每晚睡六到七个小时。asked问，要求；stopped阻止；prepared准备；enjoyed享受。联系上句，教授先让志愿者每晚睡七到八个小时，第二周再让他们每晚睡六到七个小时。故选A。

8. 考查疑问词词义辨析。句意为：每周抽取血液样本对比________基因在血细胞中。what 什么；which哪些；how怎样；why为什么。分析语境可知指“哪些”。故选B。

9. 考查形容词词义辨析。句意为：它们在漫长而________黑夜中被使用。 small小的；dark黑暗的； short短的；brave勇敢的。根据语境可知指“在漫长而黑暗的夜里”。故选B。

10. 考查动词词义辨析。句意为：很明显，改变睡眠时间可以________我们的基因，影响我们的健康。eat吃掉；change 改变；bring带来；sell出售。从“which influence our health”可知，改变睡眠时间可以改变我们的基因，从而影响我们的健康。故选B。

11. 考查形容词词义辨析。句意为：当我们睡得少的时候，我们可能更容易________。ill生病的；smart 聪明的；sad难过的；shy害羞的。联系上文及常识可知，熬夜或睡眠不足对身体有害，因此人就容易生病。故选A。

12. 考查名词词义辨析。句意为：重要的信息是，每晚睡近八小时能在短短几天内给我们的健康带来令人兴奋的________。difficulty困难；difference不同，差异；importance重要性；invitation邀请。make a difference是一个固定短语，意为“有影响”。又因这里谈论的是睡眠充足对人体的影响。故选B。

13. 考查动词短语辨析。句意为：就是通过这样的方式，它来______我们的基因。looks after照顾； looks around环顾四周； looks for寻找； looks like看起来像。根据前一句“The important message is that getting sleep about eight hours a night can make an exciting 12 to our health in just a few days.”可知充足的睡眠来照顾我们的基因。故选A。

14. 考查普通代词词义辨析。句意为：所以别再熬夜多听________广播节目，再多读一章书，再多喝一杯或多做一点工作。other其他的；another另一个；others其他人或事；the other 其余的（常用结构one...the other）。联系上文可知，熬夜对人体有害，此处指不要再熬夜听其他的广播节目。故选B。

15. 考查连词词义辨析。句意为：________你认为这不会起什么作用，你会后悔的。Until直到；Unless除非，如果不；If 如果；When当……时。根据句意可知，空格前后两句是假设关系。故选C。