Although a week's normal sleep was enough to restore the affected genes to their normal pattern, researchers said that long periods of sleeplessness could lead to serious health problems including heart disease．
Prof Colin Smith, one of the authors of the new paper, which was published in the Proceedings of the National Academy of Sciences journal, said: "This is only a week of short time sleeping and it is only five and a half or six hours night, Many people have that amount of sleep for weeks, months and maybe, even years so we have no idea how much worse it might be." If these processes continue to be disordered, you could see how you are going to get damage of organs, tissues, heart disease, etc． A．Genes in our bodies play a key role in the constant process of self-repair．
B．The group of lack of sleeping was found to have changed the function of 711 genes．
C．The other participants were monitored as they slept with their rest disturbed on some of
the nights. D．The results suggest that shorter sleep provides a more permissive environment only for heart disease． E．If you are not able to repair cells and tissues that are damaged then you are going to suffer
permanent ill health.
F．Studies have also shown the lack of sleep can lead to some other problems, for example
limiting our ability to drive a car safely．
G．The findings suggest that long-lasting lack of sleep could prevent the body from fully
repairing itself and raise the risk of a host of diseases．
第四部分书面表达（共两节，35分）
第一节情景作文（20分）
假如你是李华，一名高中生。在春节期间社区里有很多外来务工人员坚守岗位，未能回
家。下面四幅图描述了你和小区里的伙伴节前为他们送去温馨，共享节日欢愉的过程。请根据图片的先后顺序，写一篇周记，记录下此事。
注意：1、周记的开头已为你写好；
2、适当进行补充扩展；
3、词数不少于60。
提示词： migrant worker外来务工人员 security guard保安
By M_sapphire
The Spring Festival is drawing near．However, in our community, many migrant workers remain at their posts, far away from their families and hometowns. ……
第二节开放作文（15分）
请根据下面提示，写一篇短文。词数不少于50。
You are discussing the following picture with your English friend Jim．Now you are telling him how you understand the picture and what makes you think so．
9
[键入文字]
By M_sapphire
11
[键入文字]
By M_sapphire
13
2013石景山一模试卷解析
完型填空：
47. make donations to表示给...捐赠，在这里是被动语态。
48. 这句话的意思是她不想让别人过度的宣扬捐赠这件事情，gift代替了donation。
49. get out表示消息泄露了出去。
54. despite引导了让步关系的句子，根据句意：尽管她没有真正受过教育，但是她获得了两个名誉博士学位。
55. 容易误选love，整篇文章的主题围绕她将自己毕生的积蓄捐赠出来展开，所以展现出来的应该是无私的精神，love过于空泛，并且也可根据前句的generosity得出。
阅读理解：
A篇
56. 从第二段的最后几句以及第三段的it took quite different now可以得出答案。
57. 根据最后一段的大意可以推测出答案B，大家之所以立马开始干活是因为大家对老板来办公室的时间非常了解，老板马上就快来的时候，员工们便立刻开始干活。
58. 根据文章主旨推测，员工的工作实际上仅仅是为了敷衍而已，因此对公司缺少奉献的态度。
59. 整个故事的展开是围绕着老板的上班时间进行的，因此A选项最符合要求。
B篇
60. 答案在第一段的最后一句，For those secretaries whose bosses ask them to print out all their e-mails and leave them in their in-trays, this means using up a great deal of paper every month。
61. 根据第二段的本句话可以得出，This highlights a further potential problem with e-mail in today's offices - it is taking up time rather than saving it．
62. 答案根据倒数第二段的大意可以得出。
63. if used correctly, it is an invaluable tool for businesses of all sizes与C选项描述的意思是相符的。
C篇
64. 指代前面提到的It will never be done until we have succeeded in ending war。
65. 根据第二段的I believe this to be a big error，说明作者是不信任的。
66. 最后一段提到了几个It开始的句子，如It has become a common place，It has begun to be thought，It has begun to be understood，说明人们开始逐渐明白了。
D篇
67. 答案是第一段的最后一句，we're now the only wealthy country without such a policy， developed就是wealthy的同意替换词。
68. 根据第三段大意或是第三段的society expects- and needs- parents to persist in their roles for 18 years, or longer if needed可知。
69. 最后一段的The state recognizes this in the large body of family laws that govern children's welfare, yet parents receive little help in meeting the life-changing responsibilities society imposes可知答案。
70. 由最后一段最后一句得知答案。
七选五：
71. 空格的前句提到了基因的变化可以带来疾病，因此在A选项中强调基因在自我修复功能上起重大作用。
By M_sapphire
72. the finding代指前面提到的现象。
73. the group代指空格前提到的实验里边的分组。
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