题目

下列变化不可能通过一步反应直接完成的是(   ) A.Al→AlO2-  B.Al2O3→Al(OH)3         C.Al(OH)3→Al2O3  D.Al3+→AlO2- 答案：B 听力(共两节，满分30分) 第一节：(共5小题；每小题1.5分，满分7.5分) 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍 1．How much money did the car cost the man? A．80, 000 dollars B．60, 000 dollars C．40, 000 dollars 2．What does the woman imply? A．The man is forgetful B．The laptop is not new C．The man misunderstood her 3．Which of the following statements is TRUE about Marie? A．She has many hobbies B．She enjoys chatting on the phone C．She likes nothing but her friends． 4．How does the man feel about his driving to work? A．It takes him too much time B．The distance is a little long． C．He is satisfied with it． 5．When will the man probably get the carpet? A．Tomorrow morning B．On Wednesday morning C．On Wednesday afternoon 第二节：(共15小题；每小题1.5分，满分22.5分) 听第6段材料, 回答第6至7题。 6．What are the new buildings on the right? A．Dormitory buildings B．Classroom buildings C．Office buildings 7．What’s in front of the classmate buildings? A．A sports ground B．Students’ dormitories C．A beautiful garden 请听第7段材料，回答第8至10题。 8．How old is the man probably? A．Fifty years old B．Fifty-three years old C．Sixty-three years old 9．Why does he want to sell the house? A．He wants to live with his children． B．The town is too crowded C．He has been frightened since his wife died． 10．What is probably the result? A．The man still stays in the hous B．The woman buys the house C．The woman doesn’t buy the house． 请听第8段材料，回答第l1至13题。 11．What season is it probably now？ A．Early spring B．Late autumn C．Late winter 12．What does the woman buy in the end? A．A red coat in a size 16 B．A red coat in a size 14 C．A blue coat in a size 16 13．What’s the change given to the woman? A．185 dollars B．25 dollars C．15 dollars 请听第9段材料，回答第14至17题。 14．What is the woman happy about? A．No one was late for the party B．Everyone came to the party． C．The guests enjoyed the food． 15．What made the man a bit upset? A．The dumplings his mother made B．The dumplings he made C．The noise from the party 16．What is Bob blamed for? A．Not buying a film B．Being late for the party C．Being absent from the party． 17．Who held the party? A．Cathy B．Bob C．The speaker 听第10段材料，回答第18至20题。 18．How many buildings are mentioned in the talk? A．Two B．Three C．Four 19．What is the speaker probably? A．A TV hostess B．A historian C．A tour guide 20．What can we learn from the talk? A．The church looks like a European palace B．The Story House is made of wood and brick． C．There are 20, 000 dragons around the Grand Hotel．