We use plastic wrap to protect our foods. We put our garbage in plastic bags or plastic cans. We sit on p" />

制服一区字幕精品|一二三区欧洲视频|国产无遮挡裸体女|好吊色91青青草|色欲TV亚洲国产|私人高清强伦中文字幕|国产在线自慰欧美综合图区|色欲av成人一区二区三区在线观看|九九九久久精品亚洲视频久久精品|亚洲无码中文在线

公共英語(yǔ)考試網(wǎng)
新聞動(dòng)態(tài)  報(bào)考指南  考試大綱  經(jīng)驗(yàn)交流   考試答疑區(qū)   公共英語(yǔ)學(xué)友圈    網(wǎng)絡(luò)課程免費(fèi)試聽
一級(jí) ：真題|模擬題|輔導(dǎo)　二級(jí) ：真題|模擬題|輔導(dǎo)  三級(jí)：真題|模擬題|輔導(dǎo)  四級(jí)：真題|模擬題|輔導(dǎo)  五級(jí) : 真題|模擬題|輔導(dǎo)  公共英語(yǔ)三級(jí)保過(guò)班
地區(qū)信息

公共英語(yǔ)考試一級(jí)閱讀：Plastic

作者： 　 發(fā)布時(shí)間：2008-07-23 11:26:37　 來(lái)源：育路外語(yǔ)考試頻道
  • 文章正文
  • 網(wǎng)校課程
  • 資料下載
  • 熱門話題
  • 論壇
 Plastic
　　 We use plastic wrap to protect our foods. We put our garbage in plastic bags or plastic cans. We sit on plastic chairs, play with plastic toys, drink from plastic cups, and wash our hair with shampoo from plastic bottles!
　　 Plastic does not grow in nature. It is made by mixing certain things together. We call it a produced or manufactured material. Plastic was first made in the 1860s from plants, such as wood and cotton. That plastic was soft and burned easily.
　　 The first modern plastics were made in the 1930s. Most clear plastic starts out as thick, black oil. That plastic coating inside a pan begins as natural gas.
　　 Over the years, hundreds of different plastics have been developed. Some are hard and strong. Some are soft and bendable. Some are clear. Some are many-colored. There is a plastic for almost every need. Scientists continue to experiment with plastics. They hope to find even ways to use them!
熱門資料下載：
公共英語(yǔ)考試論壇熱貼:
【責(zé)任編輯：蘇婧  糾錯(cuò)】
外語(yǔ)培訓(xùn)咨詢電話：010-51294614
                       MORE>>
　考試科目輔導(dǎo)