题目

下列计算结果正确的是（ ） A . 3x2﹣2x2＝1 B . 3x2﹣2x3＝5x5 C . 3x2y﹣3yx2＝0 D . 4x+y＝4xy 答案：C 完形填空 　　By the third year of teaching I’d begun to expect Christmas break more for the school holiday and less for the excitement of the children．I was teaching fourth grade and my students had made me 　　1　　．I just had to get through one of the hardest days of the school year． 　　The morning bell rang．I walked 　　2　　 through the cold into the overly heated school building．Twenty-two smiling faces 　　3　　 me at the school bus stop．I forced myself to 　　4　　 their smiles．Back into the classroom, they 　　5　　, comparing plans for the 　　6　　．I had to remove one student from each arm 　　7　　 I could take a seat at my desk for my morning duties．Before I could find my roll book(点名册)my desk was covered with 　　8　　 and gifts followed by a 　　9　　 of “Merry Christmas” wishes． 　　“Oh, thank you,” I must have 　　10　　 a million times．Each gift was truly special to me, except my 　　11　　 mood．It was kind of them to 　　12　　 me．After a while, I heard a small nervous 　　13　　 say my name．I looked up to see Brandon standing 　　14　　 by my desk, holding a small, round gift．“This is for you．” 　　“Thank you, Sweetheart．” I laid it on my desk with the others． 　　“Um, could you 　　15　　 it now?” 　　I gently tore at the paper and tape．“　　16　　,” he said, “it’s breakable．” Slowly I opened a small, green Christmas tree ornament(装饰物), complete with a hook already 　　17　　．It dawned on me what he had done．Then a nearby student said that he just pulled that off his own tree．I tried to keep my 　　18　　 back． 　　Later that day, I sat 　　19　　 the ornament in my hands．Was I really so important to this child that he had searched for something to give me? Now every year as I 　　20　　 pull a green Christmas ball from my ornament box, I remember the deep influence my students have on me． (1) [　　] A． excited B． tired C． amazed D． relaxed (2) [　　] A． eagerly B． aimlessly C． gently D． heavily (3) [　　] A． watched B． greeted C． delighted D． warned (4) [　　] A． return B． forget C． ignore D． refuse (5) [　　] A． calmed B． settled C． chatted D． argued (6) [　　] A． study B． weekend C． vacation D． lesson (7) [　　] A． before B． when C． after D． because (8) [　　] A． letters B． books C． chalks D． cards (9) [　　] A． knowledge B． collection C． series D． bunch (10) [　　] A． confirmed B． assessed C． responded D． explained (11) [　　] A． pleased B． low C． thrilled D． angry (12) [　　] A． talk about B． think of C． turn to D． connect with (13) [　　] A． call B． sound C． shout D． voice (14) [　　] A． shyly B． bravely C． rudely D． sadly (15) [　　] A． classify B． collect C． open D． check (16) [　　] A． Careful B． Dangerous C． Patient D． Hasty (17) [　　] A． exposed B． adapted C． adjusted D． attached (18) [　　] A． trees B． hooks C． gifts D． tears (19) [　　] A． looking into B． turning over C． giving away D． packing up (20) [　　] A． anxiously B． hurriedly C． delicately D． casually