【正文】
Section A( 1a—1c) by: tan jie Unit9 When was it invented ? What are the Four Great Inventions in ancient China? Do you know? papermaking 造紙術(shù) pass 指南針 printing 印刷術(shù) gunpowder 火 藥 invent invention inventor Key Words: be invented 補(bǔ)充 : actor 演員 visit –or 游客 collectorcollection 收藏 translateortranslation翻譯 Inventor invention發(fā)明 主動(dòng)語(yǔ)態(tài) :主語(yǔ)執(zhí)行謂語(yǔ)動(dòng)作 被動(dòng)語(yǔ)態(tài) :主語(yǔ)承受謂語(yǔ)動(dòng)作 被動(dòng)語(yǔ)態(tài)的 構(gòu)成 : be動(dòng)詞 + (及物 動(dòng)詞的 ) 過(guò)去分詞 (is, are) + done 一般現(xiàn)在時(shí) (were) + done 一般