首页
登录
职称英语
Human vision like that of other primates has evolved in an arborealenvironme
Human vision like that of other primates has evolved in an arborealenvironme
游客
2023-12-17
23
管理
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. [br] 【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://tihaiku.com/zcyy/3280289.html
相关试题推荐
[originaltext]Onceagain,USnetworktelevisionfindsitselfturningsociety
1Television—themostpervasiveandpersuasiveofmoderntechnologies,ma
MurovyovkaNaturePark,aprivatenaturereserve,istheresultofthevision
MurovyovkaNaturePark,aprivatenaturereserve,istheresultofthevision
MurovyovkaNaturePark,aprivatenaturereserve,istheresultofthevision
MurovyovkaNaturePark,aprivatenaturereserve,istheresultofthevision
WhichuniversityofferscoursesthroughoneoftheBBC’stelevisionchannel?A、O
[originaltext]Onceagain,USnetworktelevisionfindsitselfturningsociety
ChildrenintheUKarenotreadingenoughathome,favouringtelevisionandc
ChildrenintheUKarenotreadingenoughathome,favouringtelevisionandc
随机试题
Animationmeansmakingthingswhicharelifelesscomeliveandmove.Sincee
DaretoDreamOurdreamsatnight
Youcan【B1】_______tothesightoftheworld’sski【B2】_______【B3】_______—y
塔式起重机严禁在夜间进行安装作业。()
A. B. C. D.
患者女性,38岁,反复口腔溃疡7年,伴间断四肢大关节游走性肿痛,近1周自觉左眼视
调解劳动争议应贯彻自愿原则,具体包括()A:申请调解自愿 B:接受调解自愿
()是不同市场之间债券的互换。A:替代互换B:市场间利差互换C:互补互换D
期货从业人员在从事期货业务前应具备( )。A.专业技能 B.专业知识 C.
下列选项中,项目监理机构在施工阶段造价控制的主要任务有()。A.预防并处理费用索
最新回复
(
0
)