题型：阅读选择 题类：常考题 难易度：普通
牛津译林版初中英语九年级上册Unit 3 Teenage problems单元测试卷
The word 'day' has two meanings. When we talk about the number of days in a year. We are using 'day' to mean 24 hours. But when we talk about day and night. We are using 'day' to mean the time between sunrise and sunset. Since the earth looks like a ball. The sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place. is moved from day into night and from night into day over and over by the spinning(旋转)of the earth. At the equator(赤道)day and night are sometimes the same length, they are each twelve hours long. The sun rises at 6 o'clock in the morning and sets at 6 o'clock in the evening. For six months the North Pole is tilted(倾斜)toward the Sun. In those months the Northern Hemisphere(半球)gets more hours of sunlight than the Southern Hemisphere. Days are longer than nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the SUN. Then the Southern Hemisphere gets more sunlight. Days are longer than nights. North of the equator nights ate longer than days. Winter is the season of long nights. Summer is the season of long days.
I'm sure you all know how important recycling is. Recycling is when you take old things and turn them into new things. It sounds like magic. But it's actually very scientific.
| Material | The first thing you have to do is to collect items that can be recycled. Only certain materials can be recycled. These include things made out of paper, metal, glass and plastic. |
| Daily things | Can you think of everyday items made of these materials? Soda cans are good example. They are made out of metal. Magazines and newspaper are made out of paper. So are cereal boxes. Some bottles of juice are made out of glass. Bags and yogurt containers are made out of plastic. There are many things that can be recycled. |
| Loop | These things are usually stamped with the recycling loop. It has 3 arrows that go in a triangular (三角形) circle. This shows that cycle (循环) continues. Items are thrown away but continue their lives as something else. |
| Process | Let's go back to the process of recycling. ①The items are put in a recycling bin. ②A truck carries the items to a recycling plant. ③The materials are separated and squashed (被压扁成) into square cubes. ④Companies buy and turn them into new products. |
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