首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Human vision like that of other primates has evolved in an arboreal environment. In the dense complex world of a tropical forest
Human vision like that of other primates has evolved in an arboreal environment. In the dense complex world of a tropical forest
admin
2013-02-04
57
问题
Human vision like that of other primates has evolved in an arboreal
environment. In the dense complex world of a tropical forest, it is more
important to see well to develop an acute sense of smell. In the 【M1】______
course of evolution members of the primate line has acquired large 【M2】______
eyes while the snout has shrunk to give the eye an unimpeding view. 【M3】______
Of mammals only humans and some primates enjoy color vision. The red
flag is black to the bull. Horses live in a monochrome world. Light visible to
human eyes, therefore, occupies only a very narrow band in the whole 【M4】______
electromagnetic spectrum. Ultraviolet rays are invisible to humans though
ants and honeybees are insensitive to them. Humans have no direct perception 【M5】______
of infrared rays like the rattlesnake that has receptors tuned into 【M6】______
wavelengths longer than 0. 7 micron. The world would look eery different 【M7】______
if human eyes are sensitive to infrared radiation. Then instead of the darkness 【M8】______
of night, we would be able to move easily in a strange shadowless world
where objects glowed with varying degrees of intensity. But human eyes excel
in other way. They are in fact remarkably discerning in color gradation. 【M9】______
The color sensitivity of normal human vision is rarely surpassed even 【M10】______
sophisticated technical devices.
【M8】
选项
答案
are改成were
解析
句法错误,虚拟语气。此句是典型的表示与现在事实相反的虚拟条件句,主句使用了would+ v,从句应该是用一般过去时。
转载请注明原文地址:https://kaotiyun.com/show/b4aO777K
0
专业英语八级
相关试题推荐
Sofirmlyentrenchedinthepoliticaleconomyhastheminimumwagebecomethatitslatestincreaseto£5.35($10.08)anhour,ca
Withregardtoitssize,Australiais______countryintheworld.
LeavingHomeGenerally,mostpeoplehaveintheirmindsapictureoftheir"idealhome",butifyouarestudentsorpeoplej
ThefirstsettlementinAustraliawasmadebythe______.
Themid-18thcentreswaspredominatedbyanewlyrisingliteraryform______,whichgivesarealisticpresentationoflifeofth
AdroughtthatagovernmentofficialcalledthemostsevereMexicohadeverbeenfacedhaslefttwomillionpeoplewithoutacce
AdroughtthatagovernmentofficialcalledthemostsevereMexicohadeverbeenfacedhaslefttwomillionpeoplewithoutacce
WhichofthefollowingdoesNOTbelongtothenovelsofthe"streamofconsciousness"schoolwriters’?
WaltWhitmanisoneofthegreatestAmerican______.
随机试题
毛泽东《论十大关系》的报告明确了建设社会主义的指导思想是()
何谓标准麻花钻的修磨?
纤维蛋白原减低见于
牙周维护期菌斑控制的主要方法是
黄体酮为体内天然的孕激素,口服后被肝脏迅速代谢灭活,所以只能肌肉注射油剂或使用栓剂。下列属于黄体酮化学结构的为()。
我国注册咨询工程师以()业务为主。
【背景资料】某公司在某省某城市承包了一个油库改造项目。项目包括新增5个2600m3储油罐,对原有部分输油管道进行改造。整个改造工程4月1日开工,工期120天。中间只允许罐区日常工作停工5天,从而完成管线的连接。新建储油罐与原轻质储油罐的最近距离8m;储
你发现一个同事在工作中遇到了困难,而你又具有解决这个困难的能力。在这种情况下,你通常采取的做法是()。
设函数f(x)连续且恒大于零,其中Ω(t)={(x,y,z)|x2+y2+z2≤t2},D(t)={(x,y)|x2+y2≤t2},证明当t>0时,F(t)>
Welcome,Freshmen.HaveaniPod.Takingastepthatmanyprofessorsmayviewasabitcounterproductive,somecollegesandu
最新回复
(
0
)