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Directions: You are to write a composition of no less than 200 words with the following information and do your composition on the ANSWER SHEET, You are to come up with the title for the essay.Now many people enjoy emails and other people prefer face-to-face conversations. Which is better and why
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There are two ways to create colors in a photograph. One method, called addtive, starts with three basic colors and adds them together to produce some other color. The second method, called subtractive, starts with white light (a mixtu re 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; green and blue mix to produce cyan. When equal parts of all three of these primary colored beams of light overlap, the mixture appears white to the eye. In the subtractive process colors are produced when dye (as in paint or color photographic materials) absorbs some wavelengths and so passes on only part of the spectrum. The subtractive primaries are cyan (a bluish green), magenta (a purplish pink) and yellow; these additive primaries or dyes that 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. How is the passage organized
案例分析题When I came to the United States, I didn’t speak any English. When anyone asked me something, I always said "Yes." But I really didn’t know what they were saying. Once I went to a large store to buy a mouse (鼠标) for my computer. When I got there, I was worried about the price. At last I found a cheap mouse. I checked the price to make sure of it before I went to the cashier. While I was at the cashier’s, she asked me something. I said, "Yes," even though I didn’t understand what she said. Then she told me what I had to pay. The price was different. I knew something was wrong. But I was afraid to say anything. Later, at home, I thought about what the cashier said to me. What made the price go up Then my husband came home. He looked at the receipt and found out what was wrong. The cashier’s question was, "Would you like a one-year warranty (保修)" and my answer was, "Yes." Since that day, I have never said "Yes" before I understand the question. And I have never paid more than the actual (实际的) price. The writer paid more than the price of the mouse because of the warranty.（）
案例分析题When I came to the United States, I didn’t speak any English. When anyone asked me something, I always said "Yes." But I really didn’t know what they were saying. Once I went to a large store to buy a mouse (鼠标) for my computer. When I got there, I was worried about the price. At last I found a cheap mouse. I checked the price to make sure of it before I went to the cashier. While I was at the cashier’s, she asked me something. I said, "Yes," even though I didn’t understand what she said. Then she told me what I had to pay. The price was different. I knew something was wrong. But I was afraid to say anything. Later, at home, I thought about what the cashier said to me. What made the price go up Then my husband came home. He looked at the receipt and found out what was wrong. The cashier’s question was, "Would you like a one-year warranty (保修)" and my answer was, "Yes." Since that day, I have never said "Yes" before I understand the question. And I have never paid more than the actual (实际的) price. The writer learned an important lesson from her own story.（）
Ironically, a study finds that we’re awful gift-givers precisely because we spend too much time trying to be considerate.We imagine our friends 46 a gift that is impressive,expensive,and sentimental. We imagine the look of happinessand surprise on their faces and the warmth we feel. 47 .But there’s something thatthe most sentimental-gift-givers tend not to think too much about: 48 the gift is practical in the first place. 49 , practicality seems like an enemy of great gift giving. Beautiful jewelry, lovely watches, perfect rugs, finely crafted kitchen hardware: These things50great gifts because they communicate something beyond practicality. Theycommunicate that the giver cares. But do the receivers care Often,no. "Gift receivers would be 51 ifgivers gave them exactly what they requested 52 . attemptingto be’thoughtful and considerate’ by buying gifts they did not explicitly request" to surprisethem, the researchers write. Their clever paper asks givers and receivers to 53 gifts from two perspectives: desirability (e.g. the cost of a coffee maker) and feasibility(e.g. the 54 of the coffee maker).Across several experiments, theyfind that givers consistently give gifts based on desirability and receivers 55 favor gifts based on feasibility .
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