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阅读部分酸、碱、盐溶解性表，试回答：

（1）从表中找出一种不溶性的碱______（写化学式）．

（2）HCl、Ca（NO3）2两种溶液能否发生反应______（填“能”或“否”）．

（3）完成Na2CO3与表中的一种碱反应制取烧碱的化学方程式______．

OH-NO3-Cl-SO42-CO32-
H+溶溶溶溶
Na+溶溶溶溶溶
Ca2+微溶溶微不
Ba2+溶溶溶不不
Cu2+不溶溶溶不

答案

（1）根据分析可以知道铜离子和氢氧根离子的交叉点为不，所以不溶的碱为氢氧化铜

（2）根据复分解反应发生的条件可以知道盐酸和硝酸钙不能生成沉淀气体或水，故不能反应

（3）与碳酸钠反应生成烧碱，可以知道反应物应该为碱，而生成的烧碱可有溶于水，所以生成碳酸盐应该是沉淀，故可以选用氢氧化钙与碳酸钠反应制取．

故答案为：

（1）Cu（OH）2

（2）否

（3）Na2CO3+Ca（OH）2═2NaOH+CaCO3↓

单项选择题

( )方式要求当年开工、当年不能竣工的单项工程或单位工程按照工程形象进度，划分不同阶段进行结算。

A．按月结算

B．竣工后一次结算

C．按年结算

D．分段结算
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阅读理解
阅读理解。
                                                    DONALD SLOAN
Gates Hall                                                                                          After May 2009:
University of Kansas                                                                          46 Clayton Drive
Lawrence, KS 66045                                                                     St. Louis,M0 63130
913-243-1682                                                                                       314-726-8840
Objective 
     To work with the client (委托人) population in social service position.
Education
     B.A., Universicy of Kansas,IJawrence,KS,2009
Major: Social Services
Minor: Applied Psychology
Experience 
     Assistant Activities Supervisor. Fairview Nursing Home, Lawrence, KS, November
2006-present. Help organize and implement recreational activities for nursing home
residents. Activities include crafts, dances, day trips, sing-alongs, and visiting performers.
     Hotline Volunteer. Teen Crisis Center, Lawrence, KS, September 2006-May 2007.
Handled crisis calls from teenagers in the community. Dealt with drug use, unwanted
pregnancies, failing grades, and the breakdown of parent teen relationships.
     Nurse's Aide. Danyers General Hospital, St. Louis, MO. Summer 2006. Assisted
nurses in patient care. Took histories, updated charts, and helped prepare patients for
surgery.
Activities
     University Concert Board. Work with other board members to plan and implement on
campus concerts.
     Senior Gift Campaign. Help manage the campaign to raise funds for the senior class
gift to the university.
     Residence Hall Programming Board. Planned social events for Eggar Residence Hall.
Skills
     Fluent in French. Water safety instructor. Skilled at working with people.
Interests
     Skiing, softball, classical music, and guitar.
1. This passage is most probably ____.
A. an advertisement for enrolling new employees
B. a school report at the end of an academic year
C. a self-introduction meant to apply for a job
D. a part of a recommendation letter from a university
2. According to the "Experience" section, we can infer that Donald Sloan can be ____.
A. a wise leader
B. a skillful performer
C. a gifted scientist
D. a good social worker
3. From the passage we learn that Donald Sloan ____.
A. is good at singing and dancing
B. is about to graduate from a university
C. has an interest in being a surgeon
D. specializes in applied psychology
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