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1、（江苏专版）2017高考英语二轮复习与策略专题限时集训20主旨大意题专题限时集训(二十)主旨大意题A(2016南京三模)An electric car is powered by all electric motor instead of a gasoline engine.The electric motor gets energy from a controller, which regulates the amount of power, and this is based on the drivers use of an accelerator pedal.The electric c
2、ar(also known as electric vehicle or EV) uses energy stored in its rechargeable batteries，which are recharged by common household electricity.Unlike a hybrid car，which is fueled by gasoline and uses a battery and motor to improve efficiency，an electric car is powered exclusively by electricity. Hist
3、orically, EVs have not been widely adopted because of limited driving range before needing to be recharged，long recharging time，and a lack of commitment by automakers to produce and market electric cars that have all the comforts of gaspowered cars. Thats changing.As battery technology improves by s
4、imultaneously increasing energy storage and reducing cost，major automakers are expected to introduce a new generation of electric cars.Electric cars produce no tailpipe emissions，reduce our dependency on oil，and are cheaper to operate.Of course，the process of producing the electricity moves the emis
5、sions further upstream to the utility companys smokestack，but even dirty electricity used in electric cars usually reduce our collective carbon footprint.Another factor is convenience. In one trip to the gas station，you can pump 330 kilowatthours of energy into a 10gallon tank. It would take about 9
6、 days to get the same amount of energy from household electric current.Fortunately，it takes hours and not days to recharge an electric car，because the process is much more efficient.Just as the major car companies were reducing their electric car programs in 2004 and 2005，the perfect storm was brewi
7、ng on the horizon: a combination of growing acceptance of global warming，oil price increases and runaway sales of the Toyota Prius，a hybrid car which uses gas and electricity.The major auto companies went right back to the drawing board and emerged with big plans for electric cars.As global oil supp
8、lies are used up and oil becomes more and more expensive，electric cars are the logical and ecological alternative for the future.本文主要介绍了电动汽车的概念和工作原理、电动汽车的发展历史以及与传统燃油动力汽车比较的优势和劣势，最后还讲了电动汽车的发展前景。1Which of the following was a reason why electric cars were not popular?AElectric cars were not comfortable
9、.BElectric cars were much more expensive.CAutomakers failed to market electric cars.DRecharging electric cars took a long time.D细节理解题。根据第二段第二句可知，电动汽车重新充电需要很长时间是其未能流行的原因。故选项D符合题意。2The main purpose of the text is to _Ashow readers how hybrid cars workBpersuade readers to buy electric carsCgive readers
10、 information about electric carsDprove that electric cars are superior to gasoline carsC主旨大意题。综览全文可知，文章首先介绍了电动汽车的概念和工作原理，然后讲了电动汽车的发展历史以及与传统燃油动力汽车比较的优势和劣势，最后指出了电动汽车的发展前景。由此可知，本文的主要目的是给读者提供一些关于电动汽车的信息。故选项C符合题意。3Whats the writers attitude towards the future of electric cars?ANegative.BPositive.CObjecti
11、ve.DDoubtful.B推理判断题。根据最后一段末句可知，作者对电动汽车的未来持积极的态度。故选项B符合题意。B(2016广州模拟)The United States of America was founded in 1776 after the 13 independent American states rose up against the ruling British，defeated them in the American Revolutionary War，and signed The Declaration of Independence，the document whi
12、ch declared the creation of the new country.The men who led the revolution，drafted The Declaration of Independence，and wrote the first American laws are known as“founding fathers”Benjamin Franklin，whose picture is on the US 100dollar note，was appointed to prepare The Declaration that was eventually
13、signed by the other founding fathers.Franklin was born in 1706 in Boston to a soap maker named Josiah Franklin.His father could not afford full schooling for all his children，but Benjamin loved books and worked in his elder brothers printing business before starting a newspaper called The Pennsylvan
14、ia Gazette in 1729.He wrote and drew cartoons for the newspaper.In addition，he worked to improve living conditions in the city：introducing street lights，cleaning the roads and building libraries.In the 1740s，Franklin retired from his newspaper and turned to science with great success.He was a very s
15、mart man and his work on electricity，including the“kite experiment”which confirmed the nature of lightning，made him famous throughout the world.Franklin earned the title of the“First American”for his efforts to unite the 13 American states，and to win their independence.This part of the story starts
16、in London.He was sent to the city to persuade the British to treat the American states more fairly.It was here that he began interacting with important political thinkers and activists of the time and developing his own political ideas.Following his return to America in 1761 he became much more active in American politics and in the battle against British rule.After the Unit
