16.Is this a defect,or are the authors working out of,or trying to forge,a different kind of aesthetic? 8 w+ q% d& D5 r( m" X* f 这究竟是一种缺陷呢,或者是否表明,这些作者是在按照一种与众不同的美学体系进行创作,抑或是在试图创立一种与众不同的美学体系?5 k/ C. O7 a0 Y7 ?
17.Black Fiction surveys a wide variety of novels,bringing to ourattention in the process some fascinating and little-known works likeJames Weldon Johnson's Autobiography of an Ex-Colored Man.) r6 W8 ?. Z0 k
《黑人小说》考察了极为广泛的一系列小说,在此过程中让我们注意到了某些引人入胜但却鲜为人知的作品,如詹姆斯·韦尔登·约翰逊(James WeldonJohnson)的《一个曾经是有色人的自传》(Autobiography of an Ex-Colored Man)- m" O7 l X6 o5 p& k8 ^
18.Although these molecules allow radiation at visible wavelengths,where most of the energy of sunlight is concentrated,to passthrough,they absorb some of the longer-wavelength,infrared emissionsradiated from the Earth's surface,radiation that would otherwise betransmitted back into space. ) d6 l2 m! t0 G* K3 a$ X5 y% Z 虽然这些分子允许可见波长(visiblewavelength)的辐射——阳光的绝大部分能量就汇集于此——不受阻挡地穿透,但它们却会吸收某些较长波长(longer-wavelength),亦即从地球表面辐射出的红外发射(infrared cmission),这种辐射若不是二氧化碳的缘故就会被重新输送回太空。% _5 L6 e; M: L8 i- z
19.The role those anthropologists ascribe to evolution is not ofdictating the details of human behavior but one of imposingconstraints-ways of feeling,thinking,and acting that “come naturally”in archetypal situations in any culture. + x+ r( w/ m3 K4 G3 }, v 这些人类学家所归诸于生物进化的作用,不是规定人类行为的种种细节,而是将各种限制强加于人类——即在任何文化的典型情景中都会“自然表露”的情感、思维、以及行动方式。 8 o- y! A+ `% s8 N- Y 20.A low number of algal cells in the presence of a high number ofgrazers suggested,but did not prove,that the grazers had removed mostof the algae.$ e# C% e7 s! T: ^3 p ? C: D
在存在大量食草动物的同时却只有少量的水藻花粉囊,这暗示出——但没能证明——食草动物已吞噬了大部分水藻。 / Y2 ]; C) k" m( G* F 21.Studies by Hargrave and Geen estimated natural community graz-ingrates by measuring feeding rates of individual zooplankton species inthe laboratory and then computing community grazing rates for fieldconditions using the known population density of grazers. ' y+ c* N3 ]' m5 a' N e 由哈格雷夫(Hargrave)和吉恩(Geen)所进行的研究,对自然条件下的群落食草比例进行了估计,其手段是通过测量出实验室内单独的浮游动物种类的结食比例,然后利用已知的食草动物种群密度,计算出实地状况下的群落食草比例。