询问证人应个别进行，应制作笔录。( )

如图所示，游泳池宽度L=15m，水面离岸边的高度为0.5m，在左岸边一标杆上装有一A灯，A灯距地面高0.5m，在右岸边站立着一个人，E点为人眼的位置，人眼距地面离1.5m，若此人发现A灯经水反射所成的像与左岸水面下某处的B灯经折射后所成的像重合，已知水的折射率为1.3，则B灯在水面下多深处？（B灯在图中未画出）

有X、Y、Z三种元素，已知：①X、Y、Z的单质在常温下均为气体；②X单质可在Z单质中燃烧，生成气态XZ；③XZ极易溶于水，电离出X⁺和Z^－，其水溶液可使蓝色石蕊试纸变红；④每2个X₂分子可与1个Y₂分子化合生成2个X₂Y分子，X₂Y在常温下为无色液体；⑤Z单质溶于X₂Y中，所得溶液具有漂白作用。

（1）推断X，Y两种元素：X________，Y_________（填元素名称）。

（2）写出⑤过程中的化学反应的方程式                                    。

（3）写出工业上制取Z单质的化学方程式                                  。

（4）写Z单质与石灰乳反应的化学方程式                                   。

III. Cloze test 完形填空 1’ * 20 = 20’

阅读下面短文，掌握其大意，然后从26－45各题所给的四个选项（A、B、C和D）中选出能填入相应空白处的最佳选项。

People from Great Britain brought the English language to North America in the 16th and 17th centuries. And in the  36  300 years, there were  37  many changes in  38  places that now people can  39  tell an English person  40  an American in the way he or she talks.

Many old words  41  in England but were kept in America. For example, 300 years ago people in Great Britain got their water from something they called either a

“faucet”, a “spigot”, or a “tap”. All these words are  42  heard in different parts of America, but only “tap” is still common in  43 . Americans often made up new words or changed old  44 . “Corn” is one kind of plant in America and  45  in England.

Also, over the last three centuries the English language  46  thousands of new words for things that weren’t known  47 . And often, American and English people used two  48  names for them. A tin can (洋铁罐头) is called “tin” for short in England, but a “can” in America. The word “radio” is  49  all over the world, including America. But many English people call it a “wireless”. And almost anything having something to do  50  cars, railroads, etc.  51  different names in British and American English．

But now American and British English may be growing closer together. One  52  is the large amount (数量) of American speech that British people hear daily in movies, on television, or  53  travelers.  54  this, Americans seem to be influencing (影响) the British more and more. So some day, English may even be  55  on both sides of the Atlantic (大西洋).  

36．A. following     B. recent       C. oldest        D. last

37．A. such              B. too                C. so                 D. great

38．A. either            B. both               C. neither          D. two

39．A. hardly            B. difficulty        C. clearly          D. easily

40．A. with              B. from                C. to               D. and

41．A. disappeared   B. were disappeared   C. spoke   D. were spoken

42．A. not                B. hardly              C. yet             D. still

43．A. America         B. the two countries   C. England     D. British

44．A. word              B. forms              C. ones             D. ways

45．A. another           B. also planted     C. a plant        D. a kind of food

46．A. added          B. has added            C. discovered     D. has discovered

47．A. anywhere    B. in some countries  C. before     D. for centuries

48．A. new              B. short                 C. different      D. surprising

49．A. produced       B. made                 C. developed      D. used

50．A. to                B. away                 C. with             D. from

51．A. has              B. have                 C. has given       D. was given

52．A. thing           B. cause                C. reason           D. expression

53．A. from            B. through             C. on                D. by

54．A. For              B. Because             C. Besides         D. Because of

55．A. different         B. more different   C. the same         D. more useful

甲签发一张金额为1万元的本票交收款人乙，乙背书转让给丙，丙将本票金额改为7万元后转让给丁，丁又背书转让给戊。如果戊向甲请求付款，甲只应支付1万元，戊所受损失6万元应向丁和丙请求赔偿。( )

红细胞运输气体的机能主要由（）完成。