18. Thus,for instance,it may come as a shock to mathematicians to learn that the Schrodinger equation for the hydrogen atom is not a literally correct description of this atom,but only an approximation to a somewhat more correct equation taking account of spin,magnetic dipole,and relativistic effects;and that this corrected equation is itself only an imperfect approximation to an infinite set of quantum field-theoretical equations. (5)
因此,举例来说,对数学家而言,了解到下述情形可能会令其惊愕不已,即薛定谔(Schrodinger)的氢原子方程式并非是对该原子作出的一种绝然正确的描述,而仅仅是个近似值,趋近于一个在某种程度上更为正确的将自旋、磁性偶极子、以及相对论效应考虑在内的方程式;而这个得以纠正的方程式就其本身而言也只是一个不完美的近似值,趋近于无穷无尽的一整套量子场论方程式。
难句类型:复杂修饰、插入语、省略
解释:读到此句时,数学家不见得震惊,晕倒的考生恐怕不在少数。不但句子结构复杂,而且罗列了大量的专有名词。对于不是理科的同学来讲,在阅读这篇文章的现场清楚地明白应该读到什么程度远比研究这些生僻的专有名词更重要。其实是否知道薛定鄂方程对读者来说并不见得重要,GRE考试的出题者也不见得知道它;关键是要读懂句子的主要意思;数学家不能理解不精确和近似值的伟大意义。不过在本书中,出现的句子均以阅读训练为目的,所以读者仍要把句子的结构读清楚。主句中的主语it是一个开工主语,其具体的内容应该是从to learn开始一直到句子结束的长达八行的不定式,但是此不定式实在太长,如果放在句首则句子无法平衡。Learn后面带着两个以that引导的宾语从句,中间以分号和and分开,可以把分号以后的句子看成是and it may come as a shock to mathematicians to learn that的省略形式。
意群训练:Thus, for instance, it may come as a shock to mathematiians to learn that the Schrodinger equation for the hydrogen atom is not a literally correct description of this atom, but only an approximation to a somewhat more correct equation taking account of spin, magnetic dipole, and relativistic effects; and that this corrected equation is itself only an imperfect approximation to an infinite set of quantum field-theoretical equations.
体坛英语资讯:Russia ensures 2-0 lead over China in Fed Cup quarterfinal
体坛英语资讯:Espanyol and Barcelona draw, Valencia and Sevilla thrill in Kings
体坛英语资讯:Phelps apologizes to Chinese fans, appreciates their support
体坛英语资讯:Nadal advances to third round at Australian Open
体坛英语资讯:Maradona blasts rules for FIFA awards
体坛英语资讯:Celtics recover to sink Knicks at MSG
体坛英语资讯:Hiddink takes over at Chelsea
体坛英语资讯:Spain defeats England 2-0 in friendly international
体坛英语资讯:Having lost 6-7 kilos, Ronaldo is closer to return
体坛英语资讯:Atletico Madrid striker Aguero says happy at club
体坛英语资讯:Russian coach Hiddink close to Chelsea job
体坛英语资讯:Safin, Federer to clash, Nalbandian crashes out of Australian Open
体坛英语资讯:Away games for Real Madrid and Barcelona in match day 23
体坛英语资讯:Friendly between Brazil and Italy in jeopardy due to political refugee
体坛英语资讯:Jankovic not surprised Serbia becomes force in tennis world
体坛英语资讯:Real Madrid withdraw UEFA appeal over Diarra, Huntelaar
体坛英语资讯:Murray crashes out, Nadal moves on at Australian Open
体坛英语资讯:Ronaldo helps United take blows en route to final
体坛英语资讯:Lakers make big statement in OT win over Celtics
体坛英语资讯:Spaniard Roma wins 13th stage on cars
体坛英语资讯:Federer masters Roddick to make Australian Open final
体坛英语资讯:Ronaldinho back to Brazilian squad for Italy friendly
不可不读的绝对英文经典
体坛英语资讯:Giggs solo sends United back top
体坛英语资讯:Nadal, Murray through to Rotterdam semifinals
体坛英语资讯:German Antoine Hey appointed Kenyas soccer coach
体坛英语资讯:Bulgarian chess star Topalov beats American champion Kamsky at second match
体坛英语资讯:British PM: Olympics a shot in the arm for economy
体坛英语资讯:Nadal, Murray to fight for Rotterdam title
体坛英语资讯:Mallorca goalie Moya suffers injury setback
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |