John found it a challenge to meet the needs of the boss． .he had no way to satisfy him．( )A．In needB．In caseC．In no timeD．In other words 题目和参考答案——青夏教育精英家教网—

16．The oldest and most common source（来源） of renewable energy known to man，biomass is one of the most important forms energy production in the United States and elsewhere．Since such a wide variety of biomass materials is everywhere--from trees and grasses to agricultural and city--life wastes--biomass promises to play a continuing role in providing power and heat for millions of people around the world．
According to the Union of Concerned Scientists（UCS），biomass is a kind of renewable energy source that produces no carbon dioxide（二氧化碳），because the energy it contains comes from the sun．When plant matter is burned，it gives off the sun's energy．In this way，biomass serves as a sort of natural battery（电池） for storing the sun's energy．As long as biomass is produced continuously--with only as much grown as is used-the"battery"lasts forever．
According to the Energy Information Administration，biomass has been one of the leading renewable energy sources in the United States for several years running through 2007，making up between 0.5and 0.9percent of the nation's total electricity supply．In 2008--although the numbers aren't all in yet--wind power probably took over first place because of the rapid development of wind farms across the country．
Producing power from biomass helps reduce some 11million tons of carbon dioxide each year．Some homeowners also try to make their own heat by using biomass materials．Such practice may save homeowner's money，but it also produces a lot of pollution．So，the best way is to encourage power plants to use it．

72．Why is biomass considered as"a sort of natural battery"？C．
A．It burns merely plant matter．
B．It keeps producing electricity．
C．It stores the energy from the sun．
D．It produces zero carbon dioxide．
73．We learn from the text that in 2008A．
A．Wind power would be the leader of renewable energy．
B．there was a rapid growth of electricity production
C．biomass might become the main energy source
D.0.5～0.9of power supply came from biomass
74．Why does the author encourage power plants to use biomass？C．
A．To prevent the waste of energy．
B．To increase production safety．
C．To reduce pollution．
D．To save money．
75．Where does the text probably come from？B．
A．A research plan．B．A science magazine
C．A book review．D．A business report．

15．Qibao Ancient Village
Qibao，located in the center of Minhang District，Shanghai，is a village with a history of one thousand years．In the village，wine and tea are served on old-fashioned square tables together with long benches，long-mouth copper pots and flat-end chopstick used．The most famous snacks in old Shanghai are square pastry，rice wine and steamed salted pork in wine．
Telephone：021-21087225
Entrance Ticket：45yuan per all-in-one ticket （preferable price of 30yuan is available now），
covering almost all tourist attractions inside the village．
Jinshan Village of Farmer Painting
Villagers skillfully make good use of folk arts such as printing and dyeing，embroidery （刺绣），wood carving．They take the various folk customs and the busy scenes of labor of villagers in the lower Changjiang valley as the theme of paintings and create farmer paintings in a simple style．
Telephone：021-57355555
Entrance Ticket：30yuan/person
Merry Countryside Tour in Zhonghua Village
The village provides tourists with accommodations，tours，chess，cards，fitness and entertainment through renting out separate farmhouse and sells tourist products and agricultural by-products related to the merry countryside tour．
Telephone：021-57395433
Entrance Ticket：Free
Pudong Lingkong Agric Gardening
It is one of Shanghai countryside tour scenic spots，which features art of teapots，crop plantation and export．The Geological Science Popularization Hall stores up tens of thousands of rare stones collected all over the world．
Telephone：021-33935557
Entrance Ticket：50yuan/person

32．Which tour is offering a discount on the entrance ticket now？A
A．Qibao Ancient Village．
B．Jinshan Village of Farmer Painting．
C．Merry Countryside Tour in Zhonghua Village．
D．Pudong Lingkong Agric Gardening．
33．A tourist who is planning to spend a night in the countryside will most probably callC．
A.021-21087225     B.021-57355555
C.021-57395433     D.021-33935557
34．Pudong Lingkong Agric Gardening may especially attract people who are interested inD．
A．traditional snacks
B．folk arts
C．farming
D．rare stones
35．What is the theme shared by the four tours？A
A．Countryside life．
B．Agricultural achievements．
C．City developments．
D．Traditional customs．

20．网上购物虽然便捷，但个人信息的安全问题不容忽视．（while）While it is convenient to shop online，we can't ignore the safety of our personal information．．

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