问题补充：
Look at the paper in the picture carefully. Is there anything different from your notebook paper? This kind of paper feels as soft as your notebook paper. It’s also easy to write on. But do you know, this kind of paper is made from stone?
As we know, stone is easy to get on the earth, so it’s cheap. And the stone paper is about 20% to 30% cheaper than ordinary paper. The stone paper causes little pollution and helps protect the environment, because it makes tree and water free. The following table shows what is needed to make one ton of stone paper and one ton of ordinary paper.
Ingredients
(成份)
One ton of
Trees
Water
Bleach
(漂白剂)
Stone
Additives
(添加剂)
Stone paper
No
No
No
0.8 ton
0.2 ton
Ordinary paper
5 tons
72 M3
Yes
0.2-0.3 ton
0
Now in Beijing, some students begin to use stone paper to do their homework. And during the two sessions (两会) in , stone paper was also used.
【小题1】Stone paper is .A．cheapB．difficult to write onC．not softD．bad【小题2】 We need ton of stone to make one ton of stone paper..A．0.8B．0.3C． 0.2 D．0.25【小题3】 in Beijing begin to use stone paper to do their homework.A．All the studentsB．Some studentsC．Many studentsD．NobodyAAB
答案：
(答案→)AAB
解析：
1.A细节题。根据stone is easy to get on the earth, so it’s cheap可知Ａ对。从It’s also easy to write on知Ｂ错；由This kind of paper feels as soft as your notebook知Ｃ错。
2.A根据表格Stone这栏可知stone paper用石头0.8吨，故选Ａ。
3.B根据Now in Beijing, some students begin to use stone paper to do their homework可知是有些学生，故选Ｂ。
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