问题 选择题

After five days' fighting, the enemy had to admit        .  [ ]

A. defeat  

B.debate  

C.success  

D.decade

答案

答案:A

单项选择题

Human relations have commanded people’s attention from early times. The ways of people have been recorded in innumerable myths, folktales, novels, poems, plays, and popular or philosophical essays. Although the full significance of a human relationship may not be directly evident, the complexity of feelings and actions that can be understood at a glance is surprisingly great. For this reason psychology holds a unique position among the sciences.

" Intuitive " knowledge may be remarkably penetrating and can significantly help us understand human behavior whereas in the physical sciences such common sense knowledge is relatively primitive. If we erased all knowledge of scientific physics from our world, not only would we not have cars and television sets, we might even find that the ordinary person was unable to cope with the fundamental mechanical problems of pulleys and levers. On the other hand, if we removed all knowledge of scientific psychology from our world, problems in interpersonal relations might easily be coped with and solved much as before. We would still " know " how to avoid doing something asked of us and how to get someone to agree with us: we would still " know " when someone was angry and when someone was pleased. One could even offer sensible explanations for the " whys " of much of the self’s behavior and feelings. In other words, the ordinary person has a great and profound understanding of the self and of other people which though unformulated or only vaguely conceived, enables one to interact with others in more or less adaptive ways. Kohler in referring to the lack of great discoveries in psychology as compared with physics, accounts for this by saying that " people were acquainted with practically all territories of mental life a long time before the founding of scientific psychology. "

Paradoxically, with all this natural, intuitive, commonsense capacity to grasp human relations, the science of human relations had been one of the last to develop. Different explanations of this paradox have been suggested. One is that science would destroy the vain and pleasing illusions people have about themselves; but we might ask why people have always loved to read pessimistic, debunking writings, from Ecclesiastes to Freud. It has also been proposed that just because we know so much about people intuitively, there has been less incentive for studying them scientifically: why should one develop a theory, carry out systematic observations, or make predictions about the obvious In any case, the field of human relations, with its vast literary documentation but meager scientific treatment, is in great contrast to the field of physics in which there are relatively few nonscientific books.

Which of the following is TRUE according to the passage()

A. Intuition couldn’t explain the motive of one’s behavior

B. Scientific psychology seems to be the most advanced subject

C. The scientific method is difficult to apply to psychology

D. Some believe that the obvious deserves no scientific study

实验题

(16分)铁、铝、铜等金属及其化合物在日常生活应用广泛,请根据下列实验回答问题:

(1)生铁中含有一种铁碳化合物X(Fe3C)。 X在足量的空气中高温煅烧,生成有磁性的固体Y,将Y溶于过量盐酸的溶液中含有的大量阳离子是       ;X与过量浓硝酸反应后溶液中含有的盐的化学式      ,检验该盐溶液中含有的阳离子的试剂为________________

(2)某溶液中有Mg2+、Fe2+、Al3+、Cu2+等四种离子,向其中加入过量的NaOH溶液后,过滤,将滤渣高温灼烧并将灼烧后的固体投入过量的稀盐酸,所得溶液与原溶液相比,溶液中大量减少的阳离子是________

A.Mg2+       B.Fe2+           C.Al3+            D.Cu2+

(3)氧化铁是重要的工业颜料,用废铁屑制备它的流程如下:

回答下列问题:

①操作Ⅰ的名称是                ,操作Ⅱ的名称是                

操作操作Ⅱ的方法为_____________________________________________________________

_______________________________________________________________________________

②Na2CO3溶液可以除油污,原因是(用离子方程式表示)                            

③请完成生成FeCO3沉淀的离子方程式:Fe2+ + HCO3     FeCO3↓+          + H2O

(4)有些同学认为用KMnO4溶液滴定也能进行铁元素含量的测定(5Fe2++MnO4-+8H+===

5Fe3++Mn2++4H2O)

①实验前,首先要精确配制一定物质的量浓度的KMnO4溶液250mL,配制时需要的仪器除

天平、玻璃棒、烧杯、胶头滴管外,还需        

②该实验中的KMnO4溶液需要酸化,用于酸化的酸是           

a.稀硝酸       b.稀盐酸       c.稀硫酸       d.浓硝酸

③某同学设计的下列滴定方式,最合理的是      (夹持部分略去)(填字母序号)