考研英語(yǔ)長(zhǎng)難句詳解參考
26. 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. 雖然這些分子允許可見(jiàn)波長(zhǎng)(visible wavelength)的輻射 陽(yáng)光的絕大部分能量就匯集于此 不受阻擋地穿透,但它們卻會(huì)吸收某些較長(zhǎng)波長(zhǎng)(longer-wavelength),亦即從地球表面輻射出的.紅外發(fā)射(infrared emission),這種輻射若不是二氧化碳的緣故就會(huì)被重新輸送回太空。
難句類型:復(fù)雜修飾、抽象詞
解釋:前面的分句中有一個(gè)不算很長(zhǎng)的插入語(yǔ),但是因?yàn)樗迦氲奈恢谜迷诠潭ù钆鋋llow something to do somthing中間,將allow和to分得很遠(yuǎn),所以讀起來(lái)讓人感覺(jué)很不舒服。
后面的分句中的最后一行radiation that would otherwise be transmitted back into space是其前面的infrared emissions的同位語(yǔ)。其中的otherwise是副詞作狀語(yǔ),表示如果后面的分句所說(shuō)的they absorb some of the longer-waverlength, infrared emissions不發(fā)生時(shí)的后果。
意群訓(xùn)練: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 Earths surface, radiation that would otherwise be transmitted back into space.
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