题目

小林有几种长度测量方法： ①测 1张纸的厚度：先用刻度尺测出 100张纸的厚度，然后算出 1张 纸的厚度； ②测量一段曲线的长度：把曲线看成是由许多小段直线组成的，用圆规量取一段较 小的半径，从一端量到另一端，最后用圆规所量次数 ×半径，就可算出曲线的长度； ③测量细铜 丝的直径：先将细铜丝在铅笔上紧密排绕 30圈测出总长度，然后算出细铜丝的直径。其中测量方法相同的是：（ ） A． ①② B． ②③ C． ①③ D． ①②③1、Different things usually stand for different feelings. Red, for example, is the color of fire, heat, blood and life. People say red is an exciting and active color. They associate（使发生联系） red with a strong feeling like   1  . Red is used for signs of   2  , such as STOP signs and fire engines. Orange is the bright, warm color of   3   in autumn. People say orange is a   4   color. They associate orange with happiness. Yellow is the color of __5__. People say it is a cheerful color. They associate yellow too, with happiness. Green is the cool color of grass in __6__. People say it is a refreshing color. In general, people __7__ two groups of colors: warm colors and cool colors. The warm colors are red, orange and __8__. Where there are warm color and a lot of light, people usually want to be __9__. Those who like to be with __10 _ like red. The cool colors are __11_  and blue. Where are these colors, people are usually worried. Some scientists say that time seems to __12 _ more slowly in a room with warm colors. They suggest that a warm color is a good __13_  for a living room or a __14_ . People who are having a rest or are eating do not want time to pass quickly. __15   colors are better for some offices if the people working there want time to pass quickly. 　　1. A. sadness     B. anger       C. administration    D. smile 　　2. A. roads       B. ways        C. danger            D. places 　　3. A. land        B. leaves      C. grass             D. mountains 　　4. A. lively      B. dark        C. noisy             D. frightening 　　5. A. moonlight   B. light       C. sunlight          D. stars 　　6. A. summer      B. spring      C. autumn            D. winter 　　7. A. speak       B. say         C. talk about        D. tell 　　8. A. green       B. yellow      C. white             D. gray 　　9. A. calm        B. sleepy      C. active            D. helpful 　　10.A. the other   B. another     C. other one         D. others 　　11.A. black       B. green       C. golden            D. yellow 　　12.A. go round    B. go by       C. go off            D. go along 　　13.A. one         B. way         C. fact              D. matter 　　14.A. factory     B. classroom   C. restaurant        D. hospital 　　15.A. Different   B. Cool        C. Warm              D. All