共用题干 第三篇Ways to Create Colors in a PhotographThere are two ways to create colors in a photograph.One method called additive,starts with three basic colors and adds them together to produce some other color. The second method,called subtractive,starts with

题目
共用题干
第三篇

Ways to Create Colors in a Photograph

There are two ways to create colors in a photograph.One method called additive,starts with three basic colors and adds them together to produce some other color. The second method,called subtractive,starts with white light(a mixture of all colors in the spectrum)and,by taking away some or all other colors,leaves the one desired.
In the additive method,separate colored lights combine to produce various other colors.The three additive primary colors are green,red and blue(each providing about one-third of the wavelengths in the total spectrum).Mixed in varying proportions,they can produce all colors.Green and red light mix to produce yellow,red and blue light mix to produce magenta(a purplish pink);green and blue mix to produce cyan(a bluish green).When equal parts of all three of these primary-colored beams of light overlap(重叠),the mixture appears white to the eye.
In the subtractive process colors are produced when dye(染料)absorbs some wavelengths and so passes on only part of the spectrum.The subtractive primaries are cyan,magenta and yellow; these primaries or dyes absorb red,green and blue wavelengths respectively,thus subtracting them from white light. These dye colors are the complementary colors to the three additive primaries of red,green and blue.Properly combined,the subtractive primaries can absorb all colors of light, producing black.But,mixed in varying proportions,they too can produce any color in the spectrum.
Whether a particular color is obtained by adding colored lights together or by subtracting some light from the total spectrum,the result looks the same to the eye.The additive process was employed for early color photography. But the subtractive method,while requiring complex chemical techniques,has turned out to be more practical and is the basis of all modern color films.

What color filter would absorb red wavelengths?
A:Red.
B:Magenta.
C:Cyan.
D:Yellow.
参考答案和解析
答案:C
解析:
这是一道理解主旨的题。第一段第一句明确提出,照片中的颜色是通过加色法和减色法两种方式形成的。之后二、三段分别详细介绍了两种方式的具体情况。A、B、D选项均不是文章主旨。
第二段最后一句话提到当等比例的三原色重叠时,形成白色。因此B选项是正确的。
这是一道关于减色法过程的细节题。根据第三段第二句话可知,减色法中的三原色分别是蓝绿色、紫红色、黄色;它们分别从白色中吸取红色、绿色、蓝色的光波。故可得出蓝绿色吸收的是红色的光波。
根据文章内容可知,加色法的三原色分别为红、绿、蓝,减色法的三原色分别是蓝绿色、紫红色、黄色。没有黑色和白色。
根据最后一段可知,通过加色法和减色法所获的特定颜色用肉眼来看效果是一样的。加色法用于早期彩色照片的处理,而减色法虽然需要复杂的化学工艺,却被证实是更为实用的方法,所以它成为了现代彩色胶片的基础。由此可知相对于加色法,减色法更为有效。
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相似问题和答案

第1题:

Your samples should give us some idea of the colors and quality () the products

A、for

B、with

C、on

D、of


参考答案:D

第2题:

three ways of presenting grammar are most frequently used and discussed; they are the deductive method, the inductive method and _________________.

A、the discovery method

B、the cognitive method

C、the guided method

D、the guided discovery method


参考答案:D

第3题:

three ways of presenting grammar are most frequently used and discussed; they are the deductive method, the inductive method and ______________.

A. the guided discovery method

B. the cognitive method

C. the discovery method

D. the guided method


正确答案是:A

第4题:

共用题干
第三篇

Ways to Create Colors in a Photograph

There are two ways to create colors in a photograph.One method called additive,starts with three basic colors and adds them together to produce some other color. The second method,called subtractive,starts with white light(a mixture of all colors in the spectrum)and,by taking away some or all other colors,leaves the one desired.
In the additive method,separate colored lights combine to produce various other colors.The three additive primary colors are green,red and blue(each providing about one-third of the wavelengths in the total spectrum).Mixed in varying proportions,they can produce all colors.Green and red light mix to produce yellow,red and blue light mix to produce magenta(a purplish pink);green and blue mix to produce cyan(a bluish green).When equal parts of all three of these primary-colored beams of light overlap(重叠),the mixture appears white to the eye.
In the subtractive process colors are produced when dye(染料)absorbs some wavelengths and so passes on only part of the spectrum.The subtractive primaries are cyan,magenta and yellow; these primaries or dyes absorb red,green and blue wavelengths respectively,thus subtracting them from white light. These dye colors are the complementary colors to the three additive primaries of red,green and blue.Properly combined,the subtractive primaries can absorb all colors of light, producing black.But,mixed in varying proportions,they too can produce any color in the spectrum.
Whether a particular color is obtained by adding colored lights together or by subtracting some light from the total spectrum,the result looks the same to the eye.The additive process was employed for early color photography. But the subtractive method,while requiring complex chemical techniques,has turned out to be more practical and is the basis of all modern color films.

What does the passage mainly discuss?
A: Recent developments in camera technology.
B:How to make white light.
C:The additive and subtractive methods of producing color.
D:The discovery of the spectrum.

答案:C
解析:
这是一道理解主旨的题。第一段第一句明确提出,照片中的颜色是通过加色法和减色法两种方式形成的。之后二、三段分别详细介绍了两种方式的具体情况。A、B、D选项均不是文章主旨。
第二段最后一句话提到当等比例的三原色重叠时,形成白色。因此B选项是正确的。
这是一道关于减色法过程的细节题。根据第三段第二句话可知,减色法中的三原色分别是蓝绿色、紫红色、黄色;它们分别从白色中吸取红色、绿色、蓝色的光波。故可得出蓝绿色吸收的是红色的光波。
根据文章内容可知,加色法的三原色分别为红、绿、蓝,减色法的三原色分别是蓝绿色、紫红色、黄色。没有黑色和白色。
根据最后一段可知,通过加色法和减色法所获的特定颜色用肉眼来看效果是一样的。加色法用于早期彩色照片的处理,而减色法虽然需要复杂的化学工艺,却被证实是更为实用的方法,所以它成为了现代彩色胶片的基础。由此可知相对于加色法,减色法更为有效。

第5题:

There are many different ways of presenting grammar in the classroom. Among them, three are most frequently used and discussed. Which one does not be|ong to them?

A.The deductive method.
B.The inductive method.
C.The guided discovery method.
D.The productive method.

答案:D
解析:
考查语法教学。常用的三种语法教学法有:演绎法(deductive method)、归纳法(inductive method)和指导发现法(guided discovery metllod)。因此答案为D。

第6题:

Which two are true?()

A.A finalizer may NOT be invoked explicitly.

B.The finalize method declared in class Object takes no action.

C.super.finalize()is called implicitly by any over riding finalize method.

D.The finalize method for a given objec twill be called no more than once by the garbage collector.

E.The order in which finalize will be called on two objects is based on the order in which the two objects became finalizable.


参考答案:B, D

第7题:

Where the cargo can be loaded in two different ways,one of which is more economical of space than the other,but each of which is a usual method of loading cargo of the relevant type,the Charterer ______ in whichever of these ways he pleases,unless he is expressly forbidden so to do by the charter-party.

A.Has to load

B.Can load

C.Loads

D.Is loaded by


正确答案:B

第8题:

One method by which stores advertise their goods is to _______ them in attractive ways in the store windows.

A、consult

B、convey

C、display

D、confront


正确答案:C

第9题:

There are many different ways of presenting grammar in the classroom. Among them, three are most frequently used and discussed. Which one does not belong to them?

A.The deductive method
B.The inductive method
C.The guided discovery method
D.The productive method

答案:D
解析:
考查语法教学方法。常用的三种语法教学法有:演绎法(The deductive method)、归纳法(The inductive method)和指导发现法(The guided discover),method)。因此答案为D。

第10题:

共用题干
第三篇

Ways to Create Colors in a Photograph

There are two ways to create colors in a photograph.One method called additive,starts with three basic colors and adds them together to produce some other color. The second method,called subtractive,starts with white light(a mixture of all colors in the spectrum)and,by taking away some or all other colors,leaves the one desired.
In the additive method,separate colored lights combine to produce various other colors.The three additive primary colors are green,red and blue(each providing about one-third of the wavelengths in the total spectrum).Mixed in varying proportions,they can produce all colors.Green and red light mix to produce yellow,red and blue light mix to produce magenta(a purplish pink);green and blue mix to produce cyan(a bluish green).When equal parts of all three of these primary-colored beams of light overlap(重叠),the mixture appears white to the eye.
In the subtractive process colors are produced when dye(染料)absorbs some wavelengths and so passes on only part of the spectrum.The subtractive primaries are cyan,magenta and yellow; these primaries or dyes absorb red,green and blue wavelengths respectively,thus subtracting them from white light. These dye colors are the complementary colors to the three additive primaries of red,green and blue.Properly combined,the subtractive primaries can absorb all colors of light, producing black.But,mixed in varying proportions,they too can produce any color in the spectrum.
Whether a particular color is obtained by adding colored lights together or by subtracting some light from the total spectrum,the result looks the same to the eye.The additive process was employed for early color photography. But the subtractive method,while requiring complex chemical techniques,has turned out to be more practical and is the basis of all modern color films.

Which of the following is NOT a pair of additive and subtractive primary colors?
A:Yellow and blue.
B: Magenta and green.
C:Black and white.
D:Cyan and red.

答案:C
解析:
这是一道理解主旨的题。第一段第一句明确提出,照片中的颜色是通过加色法和减色法两种方式形成的。之后二、三段分别详细介绍了两种方式的具体情况。A、B、D选项均不是文章主旨。
第二段最后一句话提到当等比例的三原色重叠时,形成白色。因此B选项是正确的。
这是一道关于减色法过程的细节题。根据第三段第二句话可知,减色法中的三原色分别是蓝绿色、紫红色、黄色;它们分别从白色中吸取红色、绿色、蓝色的光波。故可得出蓝绿色吸收的是红色的光波。
根据文章内容可知,加色法的三原色分别为红、绿、蓝,减色法的三原色分别是蓝绿色、紫红色、黄色。没有黑色和白色。
根据最后一段可知,通过加色法和减色法所获的特定颜色用肉眼来看效果是一样的。加色法用于早期彩色照片的处理,而减色法虽然需要复杂的化学工艺,却被证实是更为实用的方法,所以它成为了现代彩色胶片的基础。由此可知相对于加色法,减色法更为有效。

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