问题 填空题

今年我国“世界环境日”的主题为“绿色奥运与环境友好型社会”。(标识如图)

                       

(1)北京奥运会采取的下列措施中,与“绿色奥运”理念无关的是:             。(填序号)

①招募志愿者为奥运会提供服务;②在奥运场地使用新型清洁燃料汽车;③奥运工程建设中,应用太阳能、地热等能源。

(2)“祥云”火炬的燃料是丙烷(C3H8),丙烷在空气中点燃生成二氧化碳和水,符合“绿色奥运”的要求,其化学方程式为                                            

⑶ 汽车尾气中含有CO和NO,消除这两种物质对大气污染的方法是在汽车的排气管上装一个“催化转化器”,使它们发生反应生成两种参与大气循环的气体。这两种气体是:          

答案

(1) ①     (2) C3H8 + 5O23 CO2 + 4H2O     (3) CO2 和N2

题目分析:(1)“绿色奥运”理念,就是低碳环保,而使用清洁燃料、新能源能够减缓环境污染,故②③是正确的,而招募志愿者为奥运会提供服务与“绿色奥运”理念无关。故选①

(2)根据题意,丙烷在空气中点燃,即与氧气反应,生成二氧化碳和水,故反应的化学方程式为C3H8+5O23CO2+4H2O。

(3)根据题意,一氧化碳和一氧化氮在催化剂的作用下能生成两种参与大气循环的气体,而根据质量守恒定律可知,化学反应中元素种类不变,该反应的反应物中共含有C、N、O三种元素,则生成的两种气体中也应含有这三种元素,且这两种气体为参与大气循环的气体,故为二氧化碳和氮气。

点评:熟练掌握书写化学方程式的方法和原则,充分了解参与大气循环的主要气体的种类,是解答本题的关键。

选择题
阅读理解

E

The knowledge society will be a highly competitive one, for organizations and individuals alike, information technology, although only one of many new features of the next society, is already having one important effect: it is allowing knowledge to spread nearinstantly, and making it accessible to everyone. Given the ease and speed at which information travels, every institution in the knowledge society—not only businesses, but also schools, universities, hospitals and increasingly government agencies too—has to be globally competitive, even though most organizations will continue to be local in their activities and in their markets. This is because the Internet will keep customers everywhere informed of what is available anywhere in the world, and at what price.

This new knowledge economy will rely heavily on knowledge workers. At present, this term is widely used to describe people with considerable theoretical knowledge and learning, such as doctors, lawyers, teachers, accountants and chemical engineers. But the most striking growth will be in “knowledge technologists”: computer technicians, software designers, analysts in clinical labs, manufacturing technologists. These people are as much manual(体力) workers as they are knowledge workers; in fact, they usually spend far more time working with their hands than with their brains, but their manual work is based on a large amount of theoretical knowledge which can be acquired only through formal education, not through an apprenticeship(学徒期). They are not, as a rule, much better paid than traditional skilled workers, but they see themselves as “professionals”, just as unskilled manual workers in manufacturing were the dominant social and political force in the 21st century, knowledge technologists are likely to become the dominant social—and perhaps also political—force over the next decades.

67.The quick spread of knowledge in the next society______

A.is based on information technology

B.results from a highly competitive society

C.is likely to increase information flow

D.will become the biggest problem to handle

68.“Knowledge workers” mentioned in the passage most likely______.

A.work with hands rather than brains

B.have received primary and secondary education

C.have acquired theoretical knowledge through apprenticeship

D.have received higher education and acquired theoretical knowledge

69.The underlined word “dominant” in this passage probably means______.

A.most influential   B.most interesting    C.most diligent    D.most serious

70.The chief reason for fierce competition in the knowledge society is that______.

A.individuals are easily influenced by information

B.customers keep track of new products worldwide

C.anyone can have access to knowledge anytime and anywhere

D.local organizations such as universities and hospitals will be globalized