问题 选择题

“绿色化学”是人们最近提出的一个新概念,主要内容之一是指从技术、经济上设计可行的化学反应,尽可能减少对环境的副作用,下列化学反应符合绿色化学概念的是(  )。

A.制CuSO4:Cu+2H2SO4(浓)=CuSO4+SO2↑+2H2O

B.制CuSO4:2Cu+O2=2CuO,CuO+H2SO4(稀)=CuSO4+H2O

C.制Cu(NO3)2:3Cu+8HNO3(稀)=3Cu(NO3)2+2NO↑+4H2O

D.制Cu(NO3)2:Cu+4HNO3(浓)=Cu(NO3)2+2NO2↑+2H2O

答案

答案:B

“绿色化学”有别于工业上对“三废”的处理与利用,其目的是研究和寻找能利用的无害原材料,最大限度地节约能源,在化工生产各个环节中都实现净化和无污染的反应途径。如果从化学反应过程和化工工业生产方面来考虑,应该是尽可能地减少或是消除有害物质的使用和产生。即“绿色化学”是始端污染预防,而不是终端污染控制。

完形填空

第二节 信息匹配(共5小题;每小题2分,满分10分)

阅读下列图书馆的各个区域的相关信息,然后为每个人物选择相应的区域。请在答题卡上将对应题号的相应选项字母涂黑。   (如选E请涂AB,如选F请涂CD)

A.Bing Wing Carrels

Study desks with a lockable storage compartment are located on the third floor of the Bing Wing of Green Library. Graduate students and Visiting Scholars are given priority for carrel assignments. Undergraduate students, if assigned, may use a carrel for one quarter at a time.

B.The Velma Denning Room

The Velma Denning Room provides a focused environment for the data and software services offered by Social Science Data and Software (SSDS).SSDS provides access to an extensive collection of datasets from consortia, foreign governments, international organizations and U.S. agencies and offices on CD-ROM and diskette. Users can view, download, or transfer numeric data on CD-ROM and diskette from computer workstations.

C.Bender Room

The Albert M. Bender Room, with its wonderful views of the Quad and the hills beyond the campus, offers comfortable seating and a quiet atmosphere for study, leisure reading, and reflection. The Bender Room contains a collection of good books of current and classic interest in fiction and non-fiction. This collection has been made possible by a generous gift from the Stanford University Bookstore.

D.Lane Reading Room

The Lane Reading Room, houses the Humanities and Area Studies Resource Center. From the beginning, the room has served as a reading room, first for general purposes, and later for the study of rare books and manuscripts(手稿). Traditional study and reading space is now complemented by Internet access (available from all seating in the room) and computer workstations. The Lane Reading Room houses the Humanities Digital Information Service (formerly the Academic Text Service), which provides access to SUL/AIR's electronic library of humanities texts as well as to electronic indexes, publications, and the Internet.

E. Dissertation(专题论文) Rooms

Dissertation Rooms are available to currently registered doctoral students. Priority is given to those students in the Humanities and Social Sciences who use the Green Library collections. Because the rooms are in high demand, all rooms are double-assigned and are available only to students who are both currently registered and advanced to candidacy.

F.Jonsson Social Sciences Reading Room

The Jonsson Social Sciences Reading Room is designed to facilitate a range of social science learning and research activities. A social science reference collection of over 15,000 volumes as well as classic texts, new and notable publications, and current issues of core journals in the social sciences are available. The Jonsson Reading Room is also home to the Social Sciences Resource Center computer cluster. 

请阅读以下人物信息, 并为这几个人选择他们今天要去的区域:

56. Lisa intends to go into studies on Humanities and Area Studies, and she is considering which specific question should be focused on. Rather than getting easy access to electronic texts, she would like to take a quick look at the new publications in the printed form first.

57. Ali is on a visit to the university. He has been invited to stay on campus for 2 weeks. At the library, he may need a place that can be locked up to keep his belongings.

58. Jack has finished his project on humanities. For several months he was seated in front of the computer screen writing his dissertation. Today he wants a change. A comfortable place with interesting novels, short stories, or even fairytales is most favorable.

59. Ann, with a Master’s degree in Social Sciences, is one of the currently registered doctoral students. Her supervisor has asked her to search for some information in the SUL/AIR's electronic library. This is an urgent task.

60. Nick is doing a research on the Middle East. He badly needs a wide range of datasets from the area. He also plans to store the data on CD-ROM so that he can use them later.

56.   Lisa           A.    Bing Wing Carrels

57.   Ali             B.    The Velma Denning Room

58.   Jack         C.    Bender Room

59.   Ann           D.    Lane Reading Room

60.   Nick              E.    Dissertation Rooms

F.    Jonsson Social Sciences Reading Room

判断题