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27.  ____ in a friendly way, they both were satisfied with the result.

A. Their quarrel settled

B. Their quarrel being settled

C. Having been settled their quarrel        

D. After their quarrel settled

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24.       Have you told my father about the awarding ceremony?

– Yes, but he is too busy. I don’t think he ___. But in case he ____, let him sit between us.

A. is coming; is        B. will come; does    

C. would come; will    D. comes; do

25  – Mary, where does the great noise come from?

    -- A group of girls ___ football at the back of our house.

A.Play        B.are playing 

C.have played     D.having been playing

26  According to a survey, many people can be successful ____ mainly because they believe too much in TV ads.

A.taken up        B.taken over      C.taken in     D.taken off

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22.My uncle promised to buy me a nice gift for my birthday, _____ beyond my imagination.

A. which   B. that   C. the one   D. something

23  – Do you think John is coming to attend Mr.Lee ‘s lecture?

  -- Sure, I have ___ him to .

A promised  B suggested  C demanded  D persuaded

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第一节  单项填空(15分)

21.Some of the exercises appear to be _____ones that you have done, but after taking____second look, you will find that they are different.

   A. /, the        B. the, the       C. the, a        D. /,  a

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25. 某校化学小组学生利用下图所列装置进行“铁与水反应”的实验,并利用产物进一步制取FeCl3·6H2O晶体。(图中夹持及尾气处理装置均已略去)

(1)装置B中发生反应的化学方程式是                  

(2)装置E中的现象是                          

(3)停止反应,待B管冷却后,取其中的固体,加入过量稀盐酸充分反应,过滤。简述检验滤液中Fe3+的操作方法:                       

(4)该小组学生利用上述滤液制取FeCl3·6H2O晶体,设计流程如下:

滤液→FeCl3溶液→FeCl3·6H2O晶体

①步骤I中通入Cl2的作用是                   

②步骤II从FeCl3稀溶液中得到FeCl3·6H2O晶体的主要操作包括:                                           

③该流程中需保持盐酸过量,主要原因是(结合离子方程式简要说明)                                           

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24.明矾水溶液呈____性,原因是_  __                 ;小苏打水溶液呈____性,原因是_   _                _.

把上述两溶液混合后呈现的现象有          _,反应现象的离子方程式是_  __                

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23. 水玻璃在工业上可作粘合剂,当它与NH4Cl溶液接触时,会很快凝结。原因是          

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22. 有一不饱和的NaOH溶液。加入a mol Na2O、b mol Na2O2或c mol NaOH恰好得到NaOH饱和溶液(同一温度下).则a、b、c的关系为

   A.a=b=c/2   B.a=b>c/2   C.a=b<c/2   D.a>b>c

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21. Al3+ + 3H2O     Al(OH)3 +3 H+ 的平衡体系中,要使平衡向水解方向移动,且使溶液的pH值增大,应采取的措施是  

A.加热   B.加适量NaOH溶液   C.通入氯化氢气体   D.加入固体三氯化铝

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20. 0.02mol·L-1的HCN溶液与0.02mol·L-1的NaCN溶液等体积混合,已知混合液中[CN-]<[Na+],则下列关系正确的是 A.[Na+]>[]>[]>[H+]   B.[HCN]+[ ]=0.04 mol·L-1 C.[Na+]+[H+]=[]+[]   D.[]>[HCN]

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