9．The Middle East countries and other world powers have been facing major political tensions which have made the stability of the crude oil prices very unpredictable．Each day the prospect（前景）of oil prices has become more and more unclear．
Water fuel has been developed as an alternative source of fuel which has fast become popular around the world．This exciting technology has various advantages．More than 70percent of the Earth is covered with water and this fuel source does not produce any harmful pollutants or dangerous emissions（散發(fā)物）either．They in fact also double the mileage（里程）of the cars that are powered by them．
Water fuel technology has been known to be the best additional form of fuel source for petrol or other fuel sources．However，any claim that this technology can be only an additional source and not a replacement is totally incorrect and misleading．such ideas have been implied by those who look down on this technology，On the contrary，this technology has numerous benefits such as it does not produce any harmful emissions which can affect the climate changes．It further helps to reduce the level of noise produced by the engines．
Various researches reflect that running costs on fuels for automobiles can be easily saved up to 40percent with the help of water cell technology．This technology can easily work on various cars powered by gas．It can also be used for trucks，vans and other vehicles．The tap water can also be easily used directly and you do not need any special water that is specially treated to be used for this purpose．You can easily find a lot of details so that you can adapt your car to use the technology．

64．We can learn from the first paragraph that the price of oilC，
A．has been rising for a long time    B is going down at present
C is unstable for political reasons   D is decided by powerful countries
65．Water fuel technology has many advantages EXCEPT thatD．
A water fuel will not pollute the environment
B it is very simple to get such kind of fuel
C cars powered by the fuel can be used longer
D it has already been popular around the world
66．People holding the opposite idea think thatB．
A the world climate won't be influenced by fuel
B petrol can't be completely replaced by water fuel
C the engines will give out less noise than before
D water fuel can't act as an additional source for gas
67．What is the best title for the text？A
A．Water Fuel-Becoming a Reality Now        B．Water Fuel-Lower Cost
C．Water Fuel-a Long Way to Go              D．Water Fuel-a Safer Choice．

分析 本文是一篇科教類閱讀，主要向讀者介紹了一種名叫"水燃料"的資源已經(jīng)成為了現(xiàn)實．

解答 64-67．CDBA
64題答案：C考查細節(jié)推理，根據(jù)原文第一段的which have made the stability of the crude oil prices very unpredictable．這（政治緊張）使得原油價格的穩(wěn)定性變得十分難以預測．可知本題答案為C選項．
65題答案：D考查細節(jié)推理，D選項"水燃料在全世界都很受歡迎"是一個事實，而并非其優(yōu)勢；故本題答案為D選項．
66題答案：B考查細節(jié)推理，根據(jù)原文第三段However，any claim that this technology can be only an additional source and not a replacement is totally incorrect and misleading．然而，任何諸如這項科技只能是一種附加資源而不是替代品的聲稱都是完全錯誤及誤導的．可知本題答案為B選項．
67題答案：A考查主旨大意，文章主要講的是一種名為"水燃料"的資源已經(jīng)成為了現(xiàn)實并且在全世界都受到了歡迎．

點評 本文是一篇科教類閱讀，題目涉及多道細節(jié)理解題，做題時結(jié)合原文和題目有針對 性找出相關(guān)語句進行仔細分析，結(jié)合選項選出正確答案．推理判斷也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確的答案．

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