题目

我国著名化学家傅鹰告诫我们“化学给人以知识,化学史给人以智慧。”回顾苯的结构的探索历程,曾有人提出两种立体结构: 就上述两种立体结构回答下列有关问题: (1) 若苯的结构为(Ⅰ),则在下列项目中它与苯的凯库勒式结构不同的是__________ a.一氯代物种数             b.二氯代物种数 c.与溴水的作用             d.燃烧时烟的浓度 (2) 利用苯的结构(Ⅰ)能解释下列事实的是__________ a.不能使酸性高锰酸钾溶液褪色  b.苯的邻位二 Listening Comprehension Part A:Short Conversations Directions:In part A, you will hear ten short conversations between two speakers.At the end of each conversation, a question will be asked about what was said.The conversations and the questions will be spoken only once.After you hear a conversation and the question about it, read the four possible answers in your paper, and decide which one is the best answer to the question you have heard. 1.A.At a car shop B.At a garage C.In a parking area D.In a car showroom 2.A.School master and student B.Teacher and student C.Classmates D.Father and son 3.A.The meeting started earlier. B.His car was broken. C.He met with traffic jam. D.He lost his way. 4.A.Interesting B.Better C.Exciting D.Disappointing 5.A.Change her address B.Mail some letters C.Deliver some telegrams D.Call the post office 6.A.Sports B.A football match C.TV programme D.Football teams 7.A.She is always unfriendly. B.She is always friendly. C.She misunderstood the man. D.She does not like the man. 8.A.Listen to the concert at home. B.Go to the concert alone. C.Go to the concert with the man. D.Do nothing at home. 9.A.Where his uncle is. B.The way to the new railway station. C.How far the new railway station is. D.How soon the bus will come. 10.A.They should wait longer for Jane. B.Jane probable won't come. C.He forgot to tell Jane to come. D.Jane is very busy. Part B:Passages Directions:In part B, you will hear two short passages, and you will be asked three questions on each of the passages.The passages will be read twice but the questions will be spoken only once.When you hear a question, read the four possible answers on your paper and decide which one would be the best answer to the question you have heard. Questions 11 through 13 are based on the following passage. 11.A.He was arrested. B.He was taken off the plane. C He was sitting in the noisy airport building. D.He made a mistake. 12.A.Angry B.Frightened C.Annoyed D.Polite 13.A.A time bomb B.The alarm clock C.The smoke D.The passport Questions 14 through 16 are based on the following passage. 14.A.2 B.3 C.4 D.6 15.A.“The Hours” B.“The Pianist” C.“Chicago” D.“Nowhere in Africa” 16.A.The reconstruction of the World Trade towers. B.The location of the new World Trade towers. C.The expense to rebuild the World Trade towers. D.The time to rebuild the World Trade towers. Part C:Longer conversations Directions:In part C, you will hear two longer conversations.The conversations will be read twice.After you hear each conversation, you are asked to fulfill the task by filling in the numbered blanks with the information you have heard. Blanks 17 through 20 are based on the following conversation. Complete the form.Write no more than THREE words for each answer. Blanks 21 through 24 are based on the following conversation. Complete the form.Write no more than ONE word for each answer.
化学 试题推荐