【正文】 e used paper money． In western countries， people did not use paper money until the 15th century． _______1________ A Chinese man called Cai Lun invented paper almost 2， 000years ago． He made it from wood． _______2_______ He then put these pieces of paper together and made them into a book． ________3_______ We use a lot of paper every day． If we keep on wasting so much paper， there will not be any trees left on the earth． If there are no trees， there will be no paper． Every day，people throw away about 2， 800tons of paper． It takes 17trees to make one ton of paper． This means that we are cutting nearly 48， 000trees every day． Since it takes more than 10years for a tree to grow， we must start using less paper now． If we don’t， we will not have enough time to grow more trees to take the place of those we use for paper． ________4_______ We can use both sides of every piece of paper， especially when we are making n otes． We can choose drinks in bottles instead of those in paper packets． We can also use cotton handkerchiefs（手帕） and not paper ones． When we go shopping， we can use fewer paper bags． If the shop assistant does give us a paper bag， we can save it and reuse it later． ________5_______ If we all think carefully， we can help protect trees． But we should do it now， before it is too late． A． Now paper still es from trees． B． Everyone can help to save paper． C． However， people in China began to use paper money in the 7th century． D． He took the wood from trees and made it into paper． E． So how can we save paper？ 參考答案 I. II. 由 for several years可知，本句用現(xiàn)在完成時(shí)。 III. (A) 由原文第一段第一句話得知，很少人知道在眼睛上有盲點(diǎn)。 ”與上下句關(guān)系密切。本句意為 “因?yàn)槲覀冏约旱恼Z言已聽了數(shù)年了，所以聽我們的語言是很好的聽者。 will e ’s go and have a drink