提示：
段首開頭或段落結(jié)尾部分的句子中出現(xiàn)了概括句、觀點句、定義句，則這些句子可能就是其所在段落的段落主題句， 如：
2007年綜合AB概括大意完成句子考題：(60th Anniversary ceremony in Moscow
第3段：(段首句)The second world war is perhaps the most catastrophic(災(zāi)難性的)event that mankind has ever suffered. The war affected 80 per cent of the world's people at that time, from 61 countries, and claimed 55 million lives.
段首句是觀點句，因此很可能就是段落主題句。選項F(world’s worst disaster/世界上最嚴(yán)重的災(zāi)難)正好與該句內(nèi)容呼應(yīng)， F是答案。
(三)2008年教材變動情況
2008年教材上新增了大約17篇文章，詞匯選項、閱讀判斷、概括大意完成句子、閱讀理解、補全短文、完型填空各個題型上都有新增文章。理工類和衛(wèi)生類新增的文章更體現(xiàn)專業(yè)性。新增文章的語言難度和問題考點設(shè)置情況在一定程度上反映了08年考題的出題趨勢。
(難度B/A級/2008年理工類教材新增文章)
The Tiniest Electric Motor in the World
1. Scientists recently made public the tiniest electric motor ever built. You could stuff hundreds of them into the period at the end of this sentence. One day a similar engine might power a tiny mechanical doctor that would travel through your body to remove your disease.
2. The motor works by shuffling(來回運動) atoms(原子) between two molten metal droplets(小滴) in a carbon nanotube(納米管). One droplet is even smaller than the other. When a small electric current is applied to the droplets, atoms slowly get out of the larger droplet and join the smaller one. The small droplet grows – but never gets as big as the other droplet – and eventually bumps into the large droplet. As they touch, the large droplet rapidly sops up (吸入)the atoms it had previously lost. This quick shift in energy produces a power stroke(動力行程).
3.The technique exploits the fact that surface tension -- the tendency of atoms or molecules to resist separating -- becomes more important at small scales. Surface tension is the same thing that allows some insects to walk on water.
4.Although the amount of energy produced is small -- 20 microwatts(百萬分之一瓦) -- it is quite impressive(給人印象深刻的) in relation to(與...相比) the tiny scale of the motor. The whole setup is less than 200 nanometers on a side, or hundreds of times smaller than the width of a human hair. If it could be scaled up to the size of an automobile engine, it would be 100 million times more powerful than a Toyota Camry’s 225 horsepower V6 engine.
5. In 1988, Professor Richard Muller and colleagues made the first operating(工作的， 運行的) micromotor(微型發(fā)動機), which was 100 microns(微米) across, or about the thickness of a human hair. In 2003, Zettl's group created the first nanoscale motor. In 2006, they built a nanoconveyor(納米傳送帶), which moves tiny particles along like cars in a factory.
6.Nanotechnology(納米技術(shù)) engineers try to mimic nature, building things atom-by-atom. Among other things, nanomotors could be used in optical circuits to redirect light, a process called optical switching. Futurists envision(預(yù)想) a day when nanomachines(納米機器), powered by nanomotors(納米發(fā)動機), travel inside your body to find disease and repair damaged cells.
練習(xí)：
1.Paragraph 2_______
2.Paragraph 4_______
3.Paragraph 5_______
4.Paragraph 6_______
A.An introduction of a Toyota’s 225 horsepower V6 engine.
B.A description of the nanomotor in terms of power and size.
C.Surface tension(表面張力).
D.Previous inventions of nanoscale(納米級的) products.
E.The working principle of the nanomotor.
F.Possible fields of application in the future.
段首開頭或段落結(jié)尾部分的句子中出現(xiàn)了概括句、觀點句、定義句，則這些句子可能就是其所在段落的段落主題句， 如：
2007年綜合AB概括大意完成句子考題：(60th Anniversary ceremony in Moscow
第3段：(段首句)The second world war is perhaps the most catastrophic(災(zāi)難性的)event that mankind has ever suffered. The war affected 80 per cent of the world's people at that time, from 61 countries, and claimed 55 million lives.
段首句是觀點句，因此很可能就是段落主題句。選項F(world’s worst disaster/世界上最嚴(yán)重的災(zāi)難)正好與該句內(nèi)容呼應(yīng)， F是答案。
(三)2008年教材變動情況
2008年教材上新增了大約17篇文章，詞匯選項、閱讀判斷、概括大意完成句子、閱讀理解、補全短文、完型填空各個題型上都有新增文章。理工類和衛(wèi)生類新增的文章更體現(xiàn)專業(yè)性。新增文章的語言難度和問題考點設(shè)置情況在一定程度上反映了08年考題的出題趨勢。
(難度B/A級/2008年理工類教材新增文章)
The Tiniest Electric Motor in the World
1. Scientists recently made public the tiniest electric motor ever built. You could stuff hundreds of them into the period at the end of this sentence. One day a similar engine might power a tiny mechanical doctor that would travel through your body to remove your disease.
2. The motor works by shuffling(來回運動) atoms(原子) between two molten metal droplets(小滴) in a carbon nanotube(納米管). One droplet is even smaller than the other. When a small electric current is applied to the droplets, atoms slowly get out of the larger droplet and join the smaller one. The small droplet grows – but never gets as big as the other droplet – and eventually bumps into the large droplet. As they touch, the large droplet rapidly sops up (吸入)the atoms it had previously lost. This quick shift in energy produces a power stroke(動力行程).
3.The technique exploits the fact that surface tension -- the tendency of atoms or molecules to resist separating -- becomes more important at small scales. Surface tension is the same thing that allows some insects to walk on water.
4.Although the amount of energy produced is small -- 20 microwatts(百萬分之一瓦) -- it is quite impressive(給人印象深刻的) in relation to(與...相比) the tiny scale of the motor. The whole setup is less than 200 nanometers on a side, or hundreds of times smaller than the width of a human hair. If it could be scaled up to the size of an automobile engine, it would be 100 million times more powerful than a Toyota Camry’s 225 horsepower V6 engine.
5. In 1988, Professor Richard Muller and colleagues made the first operating(工作的， 運行的) micromotor(微型發(fā)動機), which was 100 microns(微米) across, or about the thickness of a human hair. In 2003, Zettl's group created the first nanoscale motor. In 2006, they built a nanoconveyor(納米傳送帶), which moves tiny particles along like cars in a factory.
6.Nanotechnology(納米技術(shù)) engineers try to mimic nature, building things atom-by-atom. Among other things, nanomotors could be used in optical circuits to redirect light, a process called optical switching. Futurists envision(預(yù)想) a day when nanomachines(納米機器), powered by nanomotors(納米發(fā)動機), travel inside your body to find disease and repair damaged cells.
練習(xí)：
1.Paragraph 2_______
2.Paragraph 4_______
3.Paragraph 5_______
4.Paragraph 6_______
A.An introduction of a Toyota’s 225 horsepower V6 engine.
B.A description of the nanomotor in terms of power and size.
C.Surface tension(表面張力).
D.Previous inventions of nanoscale(納米級的) products.
E.The working principle of the nanomotor.
F.Possible fields of application in the future.