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
40
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
AllofthefollowingitalicizedphrasesexpresscauseEXCEPTA、Hedidn’tanswerf
论述注册商标专用权保护意义。
下列三部著作出现顺序排列正确的是()。A.《诗经》《论语》《春秋》 B.《春秋
患者,女,37岁。月经量多,皮肤散在出血点。血象:血红蛋白120g/L,白细胞8
患者,男,32岁,腰痛3个月,既往无腰痛病史和外伤史,长期久坐后渐感腰痛,右侧为
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性。()
牙体缺损修复时首先要做的是A.去除病变组织 B.恢复功能 C.恢复语
关于施工项目投标保证金的说法,正确的有( )。 A.招标人在招标文件中可以
混凝土的( )指标应根据结构设计的使用年限、所处的环境类别及作用等级确定。A.
队列研究中,下列哪项不是暴露的选择来源A.特殊暴露人群 B.有该病的前驱症状者
最新回复
(
0
)