题目内容：

    If you are in Shanghai and want to throw away a cup of milk tea, be careful. You need to follow these steps: first, pour out any leftover(残留物）into a wet waste bin; second, put the paper wrapper(包装材料)into a recyclable waste bin; third, throw the single-use cup into a dry waste bin.

Sound difficult? You'll have to get used to it. From July lst, people in Shanghai are required to sort(分类)their garbage according to strict rules.

Why should we sort our garbage? The answer lies in the increasing amount of waste we are producing. Chinese cities produce over 200 million tons of waste each year, according to China Economic Net. Most of this waste is buried in landfills, which may pollute the water and soil. Moreover, we are running out of space for new landfills.

In fact, more than half of our waste can be recycled. Recyclable garbage can be made into new materials. For example, wet garbage can be used to make gas, heat and many other kinds of useful things. But in order to recycle garbage efficiently（有效地）, we need to sort our garbage.

Can't garbage-processing companies do the sorting job? They can. But that requires a lot of work and costs lots of money. Things will become much easier if each of us can sort our own garbage. Besides, the difficult task of sorting might encourage people to produce less waste. Do you still want to buy that milk tea?

1.If you want to throw some paper, which of the following dustbins should you throw in?

A.a recyclable waste bin B.apoisonous waste bin

C.a dry waste bin. D.a wet waste bin

2.What does the underlined word "landfills" mean in Chinese?

A.沙漠 B.森林地区 C.郊区 D.垃圾填埋

3.What can be used to make gas and heat?

A.wet garbage. B.dry garbage.

C.recyclable garbage. D.harmful garbage.

4.What's the best title for the text?

A.The reasons for sorting garbage B.Wonderful ways of sorting garbage

C.An introduction of sorting garbage D.An environmental city-Shanghai