题目

 下列芳香烃的一氯取代物的同分异构体的数目最多的是  (     )A．连二苯：                  B．菲  C．蒽                 D．连三苯                        答案： B Even though it was only October, my students were already whispering about Christmas plans. With each passing day everyone became more  31  waiting for the final school bell. Upon its   32  everyone would run for their coats and go home, everyone except David David was a small boy in ragged clothes. I had often  33 what kind of home life David had, and what kind of mother could send her son to school dressed so 34 for the cold winter months, without a coat, boots, or gloves. But something made David   35  . I can still remember he was always  36 a smile and willing to help. He always  37 after school to straighten chairs and mop the floor. We never talked much. He  38  just smile and ask what else he could do ,then thank me for letting him stay and slowly  39 home.Weeks passed and the  40  over the coming Christmas grew into restlessness until the last day of  41 before the holiday break. I smiled in  42  as the last of them hurried out the door. Turning around I saw David 43 standing by my desk.  “I have something for you” he said and   44 from behind his back a small box.  45   it to me, he said anxiously, “Open it. ”I took the box from him, thanked him and slowly unwrapped it. I lifted the lid and to my 46  saw nothing. I looked at David’s smiling face and back into the box and said. “The box is nice, David, but it’ s  47 . ” “ Oh no it isn’t ,” said David “ It’s full of love, my mum told me before she died that love was something you couldn’t see or touch unless you know it’s there .” Tears filled my eyes  48  Ilooked at the proud dirty face that I had rarely given  49  to. After that Christmas, David and I became good friends and I never forgot the meaning 50 the little empty box set on my desk.      小题1:A．courageous B．anxiousC．seriousD．cautious小题2:A．warningB．callingC．ringingD．yelling小题3:A．scoldedB．wonderedC．realizedD．learned小题4:A．modestlyB．naturallyC．inappropriatelyD．inaccurately小题5:A．popularB．specialC．upsetD．funny小题6:A．expressingB．deliveringC．sharingD．wearing小题7:A．practicedB．wanderedC．stayedD．studied小题8:A．wouldB．shouldC．mightD．could小题9:A．aim atB．head forC．put offD．turn to小题10:A．excitementB．argumentC．movement D．judgement小题11:A．yearB．schoolC．education D．program小题12:A．vainB．returnC．reliefD．control小题13:A．quietlyB．sadlyC．weaklyD．helplessly小题14:A．searchedB．foundC．raisedD．pulled小题15:A．HoldingB．SendingC．HandingD．Leaving小题16:A．delightB．expectationC．appreciationD．surprise小题17:A．emptyB．cheapC．uselessD．improper小题18:A．asB．untilC．becauseD．though小题19:A．adviceB．supportC．commandD．attention小题20:A．fromB．behindC．overD．towards