题目

能源和人们的生产生活息息相关。 （1）目前人们使用的燃料大多数来自化石燃料。化石燃料包括天然气、煤、。 （2）天然气的主要成分是甲烷，甲烷燃烧的化学方程式为。 （3）化石燃料不可再生，目前人们正在积极开发和利用许多新能源，请例举一种。 答案：（1）石油（2）CH4+2O2  CO2+2H2O（3）太阳能、风能等（其他答案合理给分）　　完形填空 　　Coffee is the 1 American drink at all hours of the day. You will probably need a few nays to decide  2 like it ‘black’ or  3 cream and sugar. Other kinds of coffee ,  4 ‘expresso’(速溶咖啡) , are available (可得到的) 5 some of the large cities . 　　You will discover that Americans  6 as much tea as other nationalities do. As a result, you   7 in the quality (质量) of American tea. In public restaurants, tea  8 by giving you a cup  9 a pot of hot water with a tea bag at the side. You can then make the tea as strong  10 you like it. In private homes, 11 ,tea is frequently (频繁) made with loose tea  12 tea bags. 　　 13 tea and coffee, other drinks popular in America  14 cola, milk and milk drinks  15 mikshakes(奶昔) , fruit juice and other mild (温和的) drinks. During warm weather  16 tea is perhaps most popular drink  17 all ; others prefer iced coffee. You may  18 that Americans drink a lot of water, sometimes  19 their meals. It is safe  20 the water anywhere in the country . 1． [　　] A．usual B．unusual C．usually D．unused 2． [　　] A．when you B．if you C．you if D．do you 3． [　　] A．with B．together C．within D．without 4． [　　] A．such a B．such an C．as D．such as 5． [　　] A．on B．in C．round D．over 6． [　　] A．does not drink B．did not drink C．are not drinking D．do not drink 7． [　　] A．may be disappointed B．should be disappointed C．can be disappointed D．ought to be disappointed 8． [　　] A．are served B．was served C．is serving D．is served 9． [　　] A．and B．but C．or D．wish 10． [　　] A．so B．when C．since D．as 11． [　　] A．but B．however C．though D．how 12． [　　] A．instead B．instead of C．take the place D．in place of 13． [　　] A．Except B．Beside C．Besides D．Except for 14． [　　] A．are B．is C．was D．were 15． [　　] A．call B．calling C．called D．to call 16． [　　] A．icing B．iced C．ice D．icy 17． [　　] A．of B．during C．in D．between 18． [　　] A．see B．notice C．observe D．watch 19． [　　] A．and B．or C．under D．with 20． [　　] A．to drink B．drinking C．drunk D．drank