首页
登录
职称英语
The nature of light is not wholly known, but it is generally believed to be
The nature of light is not wholly known, but it is generally believed to be
游客
2024-10-06
19
管理
问题
The nature of light is not wholly known, but it is generally believed to be matter, as in its(1)______, it obeys the laws(2)______matter. So closely is it connected with heat and electricity that there can be (3)______ doubt of their all being(4)______ different modifications of the same substance. The effects of light(5)______ other bodies and how light is affected by them(6)______ some important principles.
Rays of light are reflected from one surface to(7)______. It is by this reflection of light that objects are(8)______ visible. However, unless light falls directly(9) ______the eye they are invisible, and are not(10)______felt until after a certain series of operations upon the various coverings of the eye. Smooth and(11)______surfaces reflect light most powerfully, and send to the eye the images of the objects (12)______ the light proceeded before reflection. Glass would be of no use to us as a mirror, were it not first(13)______on one side, interrupting the rays in their(14)______from the glass into the air. The reason why trees, rocks and animals are not all mirrors is that their surfaces are(15)______, and rays of light reflected from such a surface are(16)______in every direction. Stand before a mirror and your image is formed and appears to be as far(17)______the glass as you are before it. Rays of light(18) ______reflected at the same(19) ______at which they fall upon a mirror, two persons can stand in (20)______ position that each can see the image of the other without seeing his own. [br] (13)
选项
A、coated
B、painted
C、drawn
D、overlapped
答案
A
解析
动词辨析题。be coated表示“被涂上涂料”,符合文意,故[A]为正确答案。be painted表示“刷上油漆”,be drawn表示“被画上”,be overlapped表示“被覆盖”,均与文意不符,故排除后面三个选项。
转载请注明原文地址:https://tihaiku.com/zcyy/3789002.html
相关试题推荐
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
随机试题
Forthispart,youareallowed30minutestowriteashortessaytoexpressyour
多跨静定梁是由若干根单跨静定梁铰接而成的静定结构,在工程中常用于桥梁和房屋结构中
氨基糖昔类抗生素对哪类细菌无效()A:革兰阴性菌 B:铜绿假单胞菌 C:结
下列结构中,不属于桥梁基础的是()A.刚性基础 B.承台 C.沉井 D.
土体的破坏主要是由于剪切引起的,就土体剪切强度相关试验回答下面问题。 通过试验
属于阴的脉象是A.洪脉 B.长脉 C.浮脉 D.实脉 E.涩脉
()对于知识相当于挑战对于()A.理解;攀登
“旧三中心论”指的是() A.学生中心B.教师中心C.课堂中心D
根据国务院《建设工程质量管理条例》的规定,竣工验收要由建设单位组织()进行。
长输电线路大跨挡距之间测量,通常采用的方法有( )。A.钢盘尺测量法 B.全
最新回复
(
0
)