冀教版英語九上unit3buyingandselling(lesson24)同步測試-免費閱讀
【正文】 ”與上下句關系密切。 根據原文第二段得知，這個實驗的步驟依次是：做一張硬紙板，在上面寫上兩個英文字母，舉著硬紙板，閉上右眼，移動硬紙板更近些，能看到字母 R。 本短文主要講的是聽，因此本題應選 C。本句表示 “或許能用它寫 ”。 es B. es。 a B. the 。 good C. well。 In the 13th century， the famous Italian traveler， Marco Polo， traveled a long way to China． During his stay in China， he saw many wonderful things． One of the things he discovered was that the Chinese 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
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