It is very    {#blank#}1{#/blank#} to deal with the rubbish in cities. This is because rubbish not only pollutes the environment but also does harm to people's   {#blank#}2{#/blank#} . We are trying to find some ways of dealing with the rubbish. First, the rubbish can be divided into different kinds. Newspaper and glass can be  {#blank#}3{#/blank#} . Used tins can be made into beautiful handicrafts（手工艺品）. Polluted water is a big {#blank#}4{#/blank#} . It must be dealt with properly before we let it flow into the river. Some harmful rubbish can be buried（埋）so that it will cause {#blank#}5{#/blank#} pollution.

    Different people like different things. What do these people like?

    Daming's grandparents like {#blank#}1{#/blank#} some exercise in a park every day. Daming's mother likes to {#blank#}2{#/blank#} for clothes. She spends much money on them. Betty's cousin likes to read {#blank#}3{#/blank#} and magazines and she also loves films. Tony's sister likes {#blank#}4{#/blank#} and going to concerts. Lingling's aunt and uncle like football, and they usually watch football on television.

    How do you {#blank#}5{#/blank#} presents for them?

There are many colors in nature. But do you think that a color has weight? Let's do a test.

First, put two objects with the {#blank#}1{#/blank#} weight into two boxes. Then cover the boxes. Third, wrap (包裹) one box with a red piece of paper, the other with white. Now hold the boxes {#blank#}2{#/blank#} your hand one by one. Which one is {#blank#}3{#/blank#} ? It is certain that you will think the red one is heavier. Why do you think so? A scientist did many {#blank#}4{#/blank#} and found that different colors have different weights in a man's mind.

Also, scientists say that people accept the colors they like, and {#blank#}5{#/blank#} the colors they hate. So your body and mind will be {#blank#}6{#/blank#} by using the colors you like. Or you'll be nervous {#blank#}7{#/blank#} even get ill. For example, you {#blank#}8{#/blank#} blue and hate red. If you stay in a room with red windows and wallpaper for two hours, you'll feel you have been there for {#blank#}9{#/blank#} hours. But if the room is blue, you'll feel you have been there for only an hour, And, if a person walks {#blank#}10{#/blank#} of a blue room and into a red room, his temperature will rise. That means our body temperature will change with different colors.