问题 写作题

书面表达。

     假设你是你校校报的记者李华, 请就以下内容写一封100词左右的电子邮件,

与你校的校长预约一次采访。

     1. 时间:11月10日星期五下午5时

     2. 地点:校长办公室

     3. 采访内容:中学生如何利用互联网辅助学习,并需要为文章配校长照片

     4. 请校长就能否有时间接受采访给予回复

     注意:

     1. 邮件的开头和结尾已给出,但不计入总词数

     2. 可适当增加细节,以使行文连贯

Dear headmaster,

     ____________________________________________________________________

_______________________________________________________________________

_______________________________________________________________________

     Best wishes

                                                                                                                 Yours,

                                                                                                                 Li hua

答案

Dear headmaster,

     I'm a reporter for our school newspaper. I'm writing to know whether you will have time to accept my

interview at 5 on Friday afternoon, November 10. If possible, I would like to interview you in your office

at that time. I mainly want to listen to your opinion about how we students should use the Internet to assist

ourselves with our studies. What's more, I need to take a photo of you for this article.

     I'd appreciate it if you would let me know whether you can accept my interview as soon as possible.

     Best wishes,

                                                                                                                                            Yours,

                                                                                                                                            Li Hua

答案不唯一

实验题

甲酸为不溶于水易溶于乙醇的无色晶体,苯酚常温下能溶于水,易溶于酒精。酸性强弱为:盐酸>苯甲酸>碳酸>苯酚>碳酸氢钠。现有苯甲酸、苯酚一起溶于乙醇所得的混合液,设计一个简单的实验方案,把这三种物质分离为各自的纯净物。按分离的先后顺序的多种可能方案:

方案一:按酸性由弱到强顺序分离

方案二:按酸性由强到弱顺序分离;

……

供选择试剂:①10%氢氧化钠溶液②37%盐酸③Na2CO3溶液④NaHCO3溶液⑤大理石⑥KMnO4溶液⑦生石灰⑧10%H2SO4

(1)      甲同学按实验方案一进行,请填写相关内容。

实验步骤写出相应的离子方程式
①取试样加入足量10%的NaOH溶液,充分振荡后再将反应混合物倒入蒸馏烧瓶中蒸馏得到乙醇、水的混合物和产品A①OH-+C6H5-OH→C6H5O-+H2O

                      

②向步骤①的馏分中加入足量的生石灰,再次蒸馏浓缩,蒸气冷凝后得乙醇。CaO+H2O=Ca(OH)2
③向产品A中通入足量CO2,静置后分液得    和溶液B。 

                          

④再向溶液B中加入足量       、静置、过滤后可得苯甲酸。 

                          

      (2)方案一中需要蒸馏操作,该操作需要的仪器除了铁架台、酒精灯、石棉网、接液管、锥形瓶和连接导管、橡胶塞外还要有                            

(3)方案一需要制取CO2应选用下述哪种装置              (填符号),该装置检验气密性的方法是                                      

填空题