把正確的選項填入空白處，使短文意思完整。（5分）
In many countries, people produce power from coal, but it is very dirty and causes acid rain. Some countries use nuclear energy to produce power.1         . To solve the energy problem, people all over the world are looking for new ways to produce power.
China is one of the first countries in the world to use biogas technology. 2         . This renewable energy is used in people’s everyday life.
3         . Now there are electric vehicles in many countries. They are very efficient and cost very little to run. 4          , there will be an increase in electricity needs if they are widely used.
In China, the best—known maglev train is the German—built one in Shanghai. The train can reach a top speed of 431 km per hour.5          . There is no wheel noise, because there are no wheels. However, maglev guide paths are much more expensive than traditional steel railways.
A．Farmers recycle straw, grass and animal waste to make biogas.
B．Although electric vehicles produce no pollution.
C．However, nuclear power can be very dangerous.
D．It is quiet and quick.
E．Electric vehicles were developed in the 1990s.

小題1:C
小題2:A
小題3:E
小題4:B
小題5:D

小題1:聯(lián)系前文一些國家使用核能來發(fā)電，可知選C，然而，核電非常危險。
小題2:聯(lián)系上文對生物技術(shù)的描述可知選A，農(nóng)民們回收秸稈，雜草和動物糞便來制造沼氣。
小題3:聯(lián)系下文，現(xiàn)在許多國家有電動車�？芍xE，在九十年代電動車發(fā)展起來。
小題4:聯(lián)系上下文對電動車的描述，可知前后是轉(zhuǎn)折關(guān)系，故選B，雖然電動車不產(chǎn)生污染。
小題5:聯(lián)系上文每小時431千米的速度，及下文沒有車輪噪音的描述可知選D，它非�？�，并且靜音。
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