What is color? Why do some of the things around us look red, some green, others blue?
Colors are really made by reflected(反射)light. We see color because most of the things reflect light. Something is red, for it reflects most of the red light. In the same way, if something is green, it reflects most of the green light. If something reflects all light, it is white. If it doesn’t reflect any light, it is black.
Some of the light is reflected and some is taken in (吸引)and turned into heat. The darker the color is, the less light is reflected, the more light is taken in. So dark-colored clothes are warmer in the sun than light-colored clothes.
根據(jù)短文內(nèi)容,判斷正(T)誤(F)
1.When something reflects light, we can see its color.
2.Something looks white because it reflects all light.
3.The dark-colored clothes are warm because less light is taken in.
4.In summer light-colored clothes make people feel cool.
5.Color is the best title of this passage.
年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:初中英語 來源:江蘇省興化市2017屆九年級(jí)下學(xué)期網(wǎng)上閱卷第二次適應(yīng)性訓(xùn)練英語試卷 題型:單項(xiàng)填空
Recycling is one way to protect the environment, so don’t bottles or newspapers.
A. give away B. put away C. run away D. throw away
查看答案和解析>>
科目:初中英語 來源:人教版八年級(jí)上冊英語unit2 第2課時(shí) 測試 題型:單項(xiàng)填空
Eating too much at night ______ your health.
A. is good for B. is bad at
C. is good with D. is bad for
查看答案和解析>>
科目:初中英語 來源:人教版八年級(jí)上冊英語unit2 第3課時(shí) 測試 題型:單項(xiàng)填空
What time do you usually get up______?
A. everyday B. every day
C. some day D. one day
查看答案和解析>>
科目:初中英語 來源:人教版八年級(jí)上冊英語unit2 第3課時(shí) 測試 題型:單詞拼寫
1.The girl often helps her mother do h______.
2.Surfing the I______ is a quick way to get information.
3.What a lazy boy! Peter takes a shower t______ a month.
4.My favorite p______ is Animal World.
5.M______ I can go shopping this afternoon?
查看答案和解析>>
科目:初中英語 來源:綿陽關(guān)帝中學(xué)2017秋人教新目標(biāo)九上 Unit 6 單元測試( 題型:單項(xiàng)填空
She has taken my book ___.
A. by mistaken B. by mistake C. for wrong D. make a mistake
查看答案和解析>>
科目:初中英語 來源:外研版英語九年級(jí)上冊Module 7 Unit 3限時(shí)同步檢測系列卷(語法篇) 題型:單項(xiàng)填空
Jin Yong is one of the greatest________writers.He is still________.
A. living;alive B. living;live C. alive;living
查看答案和解析>>
科目:初中英語 來源:外研版英語九年級(jí)上冊Module 7 Unit 3限時(shí)同步檢測系列卷(語法篇) 題型:單項(xiàng)填空
Mark Twain_________at the age of 75 in 1910.
A. died B. dead C. death
查看答案和解析>>
科目:初中英語 來源:人教版七年級(jí)上英語同步練習(xí)1Unit 2 This is my sister.sectionA 題型:單項(xiàng)填空
Mom, this is my teacher, Miss Lin. Miss Lin, ____
A. thank you. B. how are you?
C. this is my mom. D. hi.
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com