设a，b∈R+，且a+6=1，则的最小值是（）。 A.2 B. C.3 D.4 E.

下列各句中，没有语病的一句是 (    )（2分）

A．我虽然生在北平，一直到二十七岁才离开，但北平的地方那么大，事情那么多，我知道的真是太少了。

B．中美双方希望通过此次访问增进互信、扩大合作、加强对话，推动中美关系健康稳定地向前发展。

C．社会竞争越来越激烈，人的心理压力也越来越大，有相当部分高血压病的产生就是由于生活压力大、工作紧张诱发的。

D．公民美德是社会公民个体在参与社会公共生活实践中，应具备的社会公共伦理品质或实际显示出来的具有公共示范性意义的社会美德。

人类便于取用的河水、湖水及浅层地下水等淡水大约占水圈总水量的

A．0.01%

B．0.2%

C．1.0%

D．5.0%

E．12.0%

第二节：完形填空(共20小题，每小题1.5分，满分30分)

阅读下面短文，掌握其大意，然后从36-55各题所给的四个选项A、B、C和D中，选出可以填入空白处的最佳选项。

When I was ten, my family moved to a housing project in East Los Angeles. Even though we struggled to make  36  meet, my parents stressed to me .  37  fortunate we were to live in a great country with  38  opportunities. They imbued(灌输) in me the  39  of family, faith and love for our country.

The following year, my dad, Benjamin, injured his back working in a cardboard-box factory and was  40  as a hairstylist. He rented space in a shopping mall and gave his shop the fancy name of Mr Ben's Coiffure.

The owner of the shopping center gave Dad a discount on his  41  for cleaning the parking lot three nights a week, which  42  getting up at 3 a.m. To pick up trash, Dad used a little machine that looked like a lawn mower  43  Morn and I emptied garbage cans and picked up litter  44  .

I did this job for two years, but the lessons I learned have  45  a lifetime. I acquired discipline, a strong work ethic and a  46  attitude towards life, I also learned at an early age the importance of  47  life's competing interests---in my  48  , school, homework and a job. All  49  helped during my senior year of high school, when I worked 40 hours a week at a fast-food restaurant while  50  precollege courses.

The hard work paid off. I attended the U.S. Military Academy and went on to receive graduate 51  in law and business from Harvard,  52  I joined a big Los Angeles law firm. In these jobs and in everything else I've done, I have never forgotten those days in the parking lot. The experience has  53 me that there is dignity in all work and that if people are working to  54  themselves and their families that is something we should  55  .

36. A. ends        B. demands     C. challenges  D. friends

37. A. so         B. what      C. why       D. how

38. A. priceless      B. resistless     C. limitless     D. sightless

39. A. efforts     B. decisions    C. concepts     D. activities

40. A. retired     B. resigned  C. replaced     D. retrained

41. A. sales        B. rent      C. machine    D. shop

42. A. meant      B. kept       C. needed    D. started

43. A. since       B. although     C. when     D. while

44. A. with joy    B. on purpose C. by hand   D. in time

45. A. proved     B. impressed   C. marked    D. lasted

46. A. practical      B. pleasant      C. positive      D. tolerant

47. A. developing   B. balancing   C. comparing  D. facing

48. A. case       B. example     C. dream     D. attempt

49. A. generally   B. lately      C. really          D. typically

50. A. applying      B. doing     C. following   D. taking

51. A. titles        B. instructions C. chances      D. degrees

52. A. after that      B. ever since  C. after which       D. after then

53. A. equipped      B. prepared   C. taught          D. guided

54. A. serve for      B. feed on    C. provide for       D. count on

55. A. believe    B. honor    C. remember  D. support

写作（60分）

人生是一次远行，行程中总有一些美好的、珍贵的、受益的东西储存在心间。它可能是一段真情，一片风景，一个物件，或者是一句真诚的劝说，一次难得的机遇，一回成功的体验……，人生又是一本本日历，不同时间段折合成册。刚刚升入初三的你，在装订你的这段历程时会梳理出怎样的册页呢？请以“总有一种记忆值得珍藏”为题完成作文。

要求：①除诗歌外，文体不限。  ②为充实文章内容，字数不少于600字。③文中不得出现真实的人名。

电子商务的功能是什么？电子商务有哪些服务类型？