题目

以下是一个化学反应的微观示意图，下列有关说法正确的是（ ） A . 反应物的分子个数比为2：3 B . 反应物分子分裂成原子，原子重新组合 C . 该反应基本类型属于置换反应 D . 反应前后原子的种类与数目发生改变 答案：B 第二节：完形填空（共20小题，每小题1分；满分20分） 阅读下面短文，掌握其大意，然后从41-60各题所给的四个选项（A、B、C和D）中，选出一个最佳选项。   When I was twelve, I suddenly developed a strong feeling for writing poetry(诗歌). I gave up all my other hobbies, such as   41  stamps, and spent all my   42  time reading poetry and writing it. The   43  of writing poetry on every possible occasion (机会) soon   44  me into trouble at school. If a lesson did not  45  me. I would take out my notebook and start writing poems in class. Of course I did this very   46  , but it was not long before I got   47  . One day while I was busy writing a poem during a  48  lesson, I looked up to find the teacher standing   49  me in   50    because I was not   51  attention. He tore the poem up, with a  52  not to waste time in his lesson.   53  I was sure that I had written a good poem, 54  that evening I wrote it out from memory again. Not long after, I  55  about a poetry competition and I decided to send in my poem. Weeks later, long   56  I had given up hope, I got a letter informing me that I had won the first  57  . Everyone at school    58  me for it except the geography teacher, who  59  me more carefully than ever. He was quite  60  that I was not going to write poetry in his lesson! 41．A．keeping      B．collecting  C．gathering  D．getting 42．A．other              B．rest                     C．free              D．more 43．A．habit               B．kind                       C．means              D．type 44．A．came            B．entered                   C．arrived            D．got 45．A．interest            B．surprise                  C．understand       D．develop 46．A．silently            B．carelessly                C．carefully          D．quickly 47．A．held                B．caught                    C．taken            D．improved 48．A．Chinese          B．English                   C．maths              D．geography 49．A．over                B．on                          C．below              D．after 50．A．pride            B．anger                   C．care                 D．satisfaction 51．A．calling             B．making                   C．noticing           D．paying 52．A．warning           B．smiling                   C．suggestion     D．demand 53．A．As usual     B．In other words         C．By the way      D．All the same 54．A．however     B．so                          C．thus                 D．even 55．A．read                   B．got                         C．noticed            D．looked 56．A．before            B．after                       C．ago                 D．until 57．A．position           B．reward                    C．victory            D．prize 58．A．praised            B．thanked                  C．surprised          D．puzzled 59．A．saw                 B．watched                  C．looked at         D．cared about 60．A．afraid             B．angry                         C．sure                 D．sorry