練習(xí)：
1.Paragraph 2 A An introduction of a Toyota’s 225 horsepower V6 engine.
2.Paragraph 4 B A description of the nanomotor in terms of power and size.
3.Paragraph 5 C Surface tension.
4.Paragraph 6 D Previous inventions of nanoscale products.
E The working principle of the nanomotor.
F Possible fields of application in the future.
5.Doctors envision that the nanomotor would travel through human bodies to __________ .
6.Surface tension means the tendency of atoms or molecules to __________ .
7.Nanoconveyors could be used.to __________ .
8.Applying a small electric current causes atoms to __________ .
A remove disease
B resist separating來源：考試大
C shuffle between two molten metal droplets
D power nanomachines
E sop up molecules from the large droplet
F transport nanoscale objects
答案與題解：
1．分析文章標(biāo)題：The Tiniest（最小的） Electric（電動(dòng)的） Motor（發(fā)動(dòng)機(jī)） in the World（在世界上）
文章主題詞：the tiniest, electric motor
2. 分析被選項(xiàng)小標(biāo)題：來源:考試大網(wǎng)
A An introduction（引入， 介紹） of a Toyota（豐田汽車）’s 225 horsepower （馬力）V6 engine（發(fā)動(dòng)機(jī)）（motor的近義詞）.
B A description（描述） of the nanomotor（納米發(fā)動(dòng)機(jī)
） in terms of （在...方面）power（動(dòng)力， 權(quán)力） and size（大小，尺寸）.
C Surface tension（表面張力）.
D Previous（以前的， 早先的） inventions（發(fā)明） of nanoscale（納米級(jí)的） products（產(chǎn)品）.
E The working principle （工作原理）of the nanomotor（納米發(fā)動(dòng)機(jī)）.
F Possible（可能的） fields（領(lǐng)域， 天地， 運(yùn)動(dòng)場(chǎng)） of application（運(yùn)用） in the future（將來）.
分析：A， B， D和E與文章主題相關(guān)， 因此成為答案可能性較大， 而C和F初看起來偏離文章主題，因此成為答案的可能較小。
3．解答概括大意題
A． An introduction（引入， 介紹） of a Toyota（豐田汽車）’s 225 horsepower （馬力）V6 engine（發(fā)動(dòng)機(jī)）（motor的近義詞）.
B． A description（描述） of the nanomotor（納米發(fā)動(dòng)機(jī)
） in terms of （在...方面）power（動(dòng)力， 權(quán)力） and size（大小，尺寸）.
C． Surface tension緊張(狀態(tài)), 拉緊, 張力（表面張力）.
D． Previous（以前的， 早先的） inventions（發(fā)明） of nanoscale（納米級(jí)的） products（產(chǎn)品）.
E． The working principle （工作原理）of the nanomotor（納米發(fā)動(dòng)機(jī)）. F． Possible（可能的） fields（領(lǐng)域， 天地， 運(yùn)動(dòng)場(chǎng)） of application（運(yùn)用） in the future（將來）.
1． Paragraph 2 ____.考試大(www．Examda。com)
（第1段）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（相似的） engine（發(fā)動(dòng)機(jī)）might power a tiny mechanical doctor that would travel through your body to remove your disease.
（第2段）The motor works by shuffling（來回移動(dòng)） atoms（原子） between（在...之間） two molten（熔化的） metal（金屬） droplets (小滴) in a carbon（碳） 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 the atoms it had previously lost. This quick shift in energy produces a power stroke.
1.Paragraph 2 A An introduction of a Toyota’s 225 horsepower V6 engine.
2.Paragraph 4 B A description of the nanomotor in terms of power and size.
3.Paragraph 5 C Surface tension.
4.Paragraph 6 D Previous inventions of nanoscale products.
E The working principle of the nanomotor.
F Possible fields of application in the future.
5.Doctors envision that the nanomotor would travel through human bodies to __________ .
6.Surface tension means the tendency of atoms or molecules to __________ .
7.Nanoconveyors could be used.to __________ .
8.Applying a small electric current causes atoms to __________ .
A remove disease
B resist separating來源：考試大
C shuffle between two molten metal droplets
D power nanomachines
E sop up molecules from the large droplet
F transport nanoscale objects
答案與題解：
1．分析文章標(biāo)題：The Tiniest（最小的） Electric（電動(dòng)的） Motor（發(fā)動(dòng)機(jī)） in the World（在世界上）
文章主題詞：the tiniest, electric motor
2. 分析被選項(xiàng)小標(biāo)題：來源:考試大網(wǎng)
A An introduction（引入， 介紹） of a Toyota（豐田汽車）’s 225 horsepower （馬力）V6 engine（發(fā)動(dòng)機(jī)）（motor的近義詞）.
B A description（描述） of the nanomotor（納米發(fā)動(dòng)機(jī)
） in terms of （在...方面）power（動(dòng)力， 權(quán)力） and size（大小，尺寸）.
C Surface tension（表面張力）.
D Previous（以前的， 早先的） inventions（發(fā)明） of nanoscale（納米級(jí)的） products（產(chǎn)品）.
E The working principle （工作原理）of the nanomotor（納米發(fā)動(dòng)機(jī)）.
F Possible（可能的） fields（領(lǐng)域， 天地， 運(yùn)動(dòng)場(chǎng)） of application（運(yùn)用） in the future（將來）.
分析：A， B， D和E與文章主題相關(guān)， 因此成為答案可能性較大， 而C和F初看起來偏離文章主題，因此成為答案的可能較小。
3．解答概括大意題
A． An introduction（引入， 介紹） of a Toyota（豐田汽車）’s 225 horsepower （馬力）V6 engine（發(fā)動(dòng)機(jī)）（motor的近義詞）.
B． A description（描述） of the nanomotor（納米發(fā)動(dòng)機(jī)
） in terms of （在...方面）power（動(dòng)力， 權(quán)力） and size（大小，尺寸）.
C． Surface tension緊張(狀態(tài)), 拉緊, 張力（表面張力）.
D． Previous（以前的， 早先的） inventions（發(fā)明） of nanoscale（納米級(jí)的） products（產(chǎn)品）.
E． The working principle （工作原理）of the nanomotor（納米發(fā)動(dòng)機(jī)）. F． Possible（可能的） fields（領(lǐng)域， 天地， 運(yùn)動(dòng)場(chǎng)） of application（運(yùn)用） in the future（將來）.
1． Paragraph 2 ____.考試大(www．Examda。com)
（第1段）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（相似的） engine（發(fā)動(dòng)機(jī)）might power a tiny mechanical doctor that would travel through your body to remove your disease.
（第2段）The motor works by shuffling（來回移動(dòng)） atoms（原子） between（在...之間） two molten（熔化的） metal（金屬） droplets (小滴) in a carbon（碳） 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 the atoms it had previously lost. This quick shift in energy produces a power stroke.