In the 13th century, Marco Polo travelled a long way to China. He was a famous Italian 31 During his stay in China, he saw many wonderful things. One of the things he 32 was that the Chinese used paper money. People in 33 coun­tries didn’t use paper money until the 17th century. However,people in China began to use paper money in the 10th century. 34 was invented by a Chinese about 2 000 years ago. His name was Cai Lun. He then 35 these pieces of paper together and made them into a 36 .
Now paper mainly comes from trees. We use it every day. 37 we waste a lot of it. If we keep on doing so, people 38 cut down many more trees. Then there will not be any trees left. If there are no 39 , there will be no paper.
So how can we 40 paper? When we mak­ing notes,we can use 41 sides of each piece of paper. We can buy drinks in bottles instead of 42 in paper packets. We can also use cotton handkerchiefs ( 棉手帕) and not the paper ones.
43 we go shopping, we can use fewer paper bags. If the salesman gives us a paper bag, we can keep it and 44 it later. We can help to protect trees if we think 45 . We should to it now,before it is too late.
小题1:A．travellerB．actorC．doctorD．driver小题2:A．dislikedB．disagreedC．inventedD．discovered小题3:A．EasternB．WesternC．SouthernD．Northern小题4:A．IronB．PaperC．TelevisionD．Silk小题5:A．collectedB．dividedC．movedD．put小题6:A．magazineB．newspaperC．bookD．dictionary小题7:A．SometimeB．Some timeC．SometimesD．Some times小题8:A．have toB．mustn’tC．used toD．shouldn’t小题9:
A.books
B.trees C, leaves D. factories