greatest president.He had also been named best president in a similar study in 2000"可知林肯曾两次被选为最伟大的总统。故选A。

　　6．Which of the following belong to the ten leadership qualities considered?

　　 a．Being able to persuade the public.

　　 b．Taking effective measures during a financial crisis.

　　 c．Balancing home life and career.

　　 d．Pursuing equal justice for all.

　　A．a，b，c　　　　　　　　B．b，c，d

　　C．a，b，d D．a，c，d

　　解析：选C　细节理解题。结合第一段内容可知abd符合，故选C项。

　　7．Who is rated worst among the following four presidents?

　　 A．John F．Kennedy. B．George Washington.

　　 C．Bill Clinton. D．George W．Bush.

　　解析：选D　细节理解题。结合文章倒数第二段可知布什总统是最低的，故选D。

　　8．The text is mainly about .

　　 A．the ten qualities a great president needs

　　 B．a study of American presidents

　　 C．the values the American nation honors most

　　 D．how Abraham Lincoln improved the country

　　解析：选B　主旨大意题。结合第一段可知文章介绍了一份谁是美国最伟大总统的的调查。故选B。

　　C

　　Welcome to the future. It's year 2050 and Scotland is now powered completely by "clean" energy.

　　Homes have entire roofs made of solar materials, rooms are kept warm by wallpaper, and people go to and from work in electric and hydrogen (氢) cars. Oil is still being found in the North Sea, but it's not now only used to keep aircraft flying. And a new 500­mile underwater link with Iceland has been built to catch heat from the hot springs. There's still a role for king coal - but the black diamonds are now environment­friendly.

　　People will be able to import the electricity they need and export any excess(超过的量) they make through rooftop windmills(风车). New technology will store electricity better and provide it on demand. Heat exchangers will provide heating and hot water.

　　Harmful carbon dioxide waste is being piped offshore to St Fergus and from there into some of the remaining oil­producing fields to be stored safely without entering the atmosphere. Gas remains the preferred energy source of industry and is now shipped in liquid form. But hydrogen is imported through pipelines from France and from a geothermal (地热的) plant in Iceland.

　　Hydrogen­fueled cars have become popular. Electric bikes are common in cities using the new urban two­wheel network. Electric vehicles have become common, and their performances have been improved because of the developments in electrical drive technology like high­temperature super conducting motors. Many people leave their vehicles in a giant park where they can be recharged from the national electrical system . Oilseed rape (油菜) is widely grown to fuel some motors .

　　9.What does the underlined phrase in paragraph 2 mean?

　　A．The hot springs.　　　　B．Oil.

　　C．Coal. D．Oil and coal.

　　解析：选C　词义猜测题。分析句意可知，此处的the black diamonds应与coal对应。故选C。

　　10．Which sources of energy play a more important role in people's daily life in the future?

　　A．Oil and coal. B．Hydrogen and gas.

　　C．Electricity and gas. D．Solar energy and wind.

解析：选D　推理判断题。根据第一段"Homes have entire roofs made of solar materials ...