Question

Although these molecules allow radiation at visible wavelengths, where most of the energy of sunlight is concentrated, to pass through, they absorb some of the longer-wavelength, infrared emissions radiated from the Earth's surface, radiation that would otherwise be transmitted back into space. 025  标志：Although these molecules allow radiation at visible wavelengths   , where most of the energy of sunlight is concentrated   , /to   pass through,/ but they absorb some of the longerwavelength, infrared emissions   (radiated from the Earth's surface,) (radiation that would otherwise be transmitted back into space).  解释：   前面的分句中有一个不算是很长的插入语，但是因为它插入的位置正好在固定搭配allow   something to   do something中间，将allow和to分得很远，所以读起来让人感觉很不舒服。后面的分句中的最后的一行radiation that would otherwise be transmitted back into space是其前面的infrared emissions的同位语。其中的otherwise词作状语，表示如果后面的分句所说的they absorb some of the longer-wavelength, infrared emissions不发生时的后果。 4

Accepted Answer

gre  意群训练： Although these molecule   s allow radiatio   n at visible wavelengths   , where most o   f the energy of sunligh   t is concentrated   , to pass through   , they absor   b some of th   e longer-wavelength   , infrared emissions radiated fro   m the Earth's surface   , radiation tha   t would otherwise be transmitted bac   k into space   .  译文：   尽管这些分子 允许   （大多数太阳能集中于此的   ）可见光波长的辐射 通过   ， 可是  它们   却吸收了   （从地球表面反射出来的）更长波长的红外线辐射   ，（如果没有二氧化碳分子   这种辐射将会被传送回太空）。 复杂修饰+插入语

en	Although these molecules allow radiation at visible wavelengths, where most of the energy of sunlight is concentrated, to pass through, they absorb some of the longer-wavelength, infrared emissions radiated from the Earth's surface, radiation that would otherwise be transmitted back into space.
category	gre
idx	025
parts	意群训练： Although these molecule s allow radiatio n at visible wavelengths , where most o f the energy of sunligh t is concentrated , to pass through , they absor b some of th e longer-wavelength , infrared emissions radiated fro m the Earth's surface , radiation tha t would otherwise be transmitted bac k into space .
mark	标志：Although these molecules allow radiation at visible wavelengths , where most of the energy of sunlight is concentrated , /to pass through,/ but they absorb some of the longerwavelength, infrared emissions (radiated from the Earth's surface,) (radiation that would otherwise be transmitted back into space).
cn	译文：尽管这些分子允许（大多数太阳能集中于此的）可见光波长的辐射通过，可是它们却吸收了（从地球表面反射出来的）更长波长的红外线辐射，（如果没有二氧化碳分子这种辐射将会被传送回太空）。
explain	解释：前面的分句中有一个不算是很长的插入语，但是因为它插入的位置正好在固定搭配allow something to do something中间，将allow和to分得很远，所以读起来让人感觉很不舒服。后面的分句中的最后的一行radiation that would otherwise be transmitted back into space是其前面的infrared emissions的同位语。其中的otherwise词作状语，表示如果后面的分句所说的they absorb some of the longer-wavelength, infrared emissions不发生时的后果。
type	复杂修饰+插入语
score	4

Radiation Infrared Transmitted Visible Energy Pass Absorb Emissions