题目

制作洋葱根尖细胞有丝分裂装片的正确步骤是       A．解离—染色—漂洗—制片                              B．解离—漂洗—染色—制片       C．制片—染色—解离—漂洗                              D．制片—解离—漂洗—染色 答案：BWe may look at the world around us, but somehow we manage not to see it until whatever we’ve become used to suddenly disappears.  36 , for example, the neatly-dressed woman I  37  to see—or look at—on my way to work each morning. For three years, no matter  38  the weather was like, she was always waiting at the bus stop around 8:00 am. On  39  days, she wore heavy clothes and a pair of woolen gloves. Summertime  40  out neat, belted cotton dresses and a hat pulled low over her sunglasses. 41 , she was an ordinary working woman. Of course, I  42  all this only after she was seen no more. It was then that I realized how  43  I expected to see her each morning. You might say I  44 her.“Did she have an accident? Something  45 ?” I thought to myself about her  46 . Now that she was gone, I felt I had  47  her. I began to realize that part of our  48  life probably includes such chance meetings with familiar  49 : the milkman you see at dawn, the woman who 50  walks her dog along the street every morning, the twin brothers you see at the library. Such people are  51  markers in our lives. They add weight to our  52  of place and belonging. Think about it.  53 , while walking to work, we mark where we are by  54  a certain building, why should we not mark where we are when we pass a familiar, though  55 , person?小题1:A．MakeB．TakeC．GiveD．Have小题2:A．happened B．wantedC．usedD．tried小题3:A．whatB．howC．which D．when小题4:A．sunnyB．rainyC．cloudyD．snowy小题5:A．tookB．brought C．carriedD．turned小题6:A．ClearlyB．ParticularlyC．Luckily D．Especially小题7:A．believedB．expressedC．remembered D．wondered小题8:A．longB．oftenC．soonD．much小题9:A．respected B．missedC．praisedD．admired小题10:A．betterB．worseC．moreD．less小题11:A．disappearance B．appearanceC．misfortuneD．fortune小题12:A．forgotten B．lostC．knownD．hurt小题13:A．happyB．enjoyableC．frequentD．daily小题14:A．friendsB．strangersC．touristsD．guests小题15:A．regularly B．actuallyC．hardlyD．probably小题16:A．commonB．pleasantC．importantD．faithful小题17:A．choiceB．knowledgeC．decisionD．sense小题18:A．BecauseB．IfC．AlthoughD．However小题19:A．keepingB．changingC．passingD．mentioning小题20:A unnamed        B. unforgettable    C. unbelievable     D. unreal