题目内容
What is colour? Why do some of the things around us look red, some green, others blue?
Colours are really made by reflected (反射) light. We see colour 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 (吸收) and turned into heat. The darker the colour is, the less light is reflected, the more light is taken in. So dark-coloured clothes are warmer in the sun than light-coloured clothes.
1.When something reflects light, we can _______ .
A. see its colour B. see its heat
C. not see its colour D. see nothing
2.The dark-coloured clothes are warm because _________ is taken in.
A. more light B. less light
C. more colour D. less colour
3.In summer ________ make people feel cool.
A. dark-coloured clothes
B. red-coloured clothes
C. green-coloured clothes
D. light-coloured clothes
阅读短文,根据上下文意思,将方框中的句子还原到短文中适当位置,使其通顺完整,并将其字母代号写在横线上。其中有一句是多余选项。
Last summer I had an awful car accident and I had to spend two months in hospital. I hope my sad experience will be a lesson to all drivers, especially those who think it is safe to drink and drive.
__1._ I had a lot of wine with my friends. I thought I could drive home that night, but thirty minutes later, I was losing control of myself, yet I still went on because I really wanted to go to bed. __2.___ The last thing I remember was trying to get out of the car with blood pouring down my head and broken glass all over my body. I remember trying to get out but my legs were stuck and I could hardly move. Luckily, I was wearing a seat belt(安全带). _3.__ The next thing I remember was lying on a hospital bed. It seemed I only broke my leg.
___4.__ I hope that people both young and old will drive more safely in the future.
A. This is one of the dangers of drinking and driving. B. Most people say that saved my life. C. I remember that day I was feeling a bit upset. D. The car is my favorite one. E. My car then hit a parked truck on the side of the road. |