when_was_it_invented

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1、Whenwasitinvented?SectionBWhoinventedtea?Didyouknowthattea,themostpopulardrinkintheworld(afterwater),wasinventedbyaccident?Althoughteawasn’tbroughttotheWesternworlduntil1610,thisbeveragewasdiscoveredoverthreethousandyearsbeforethat.AccordingtoanAncientChineseleg

2、end,theemperorShenNongDiscoveredteawhenhewasboilingdrinkingwateroveranopenfire.Someleavesfromanearbybushfellintothewaterandremainedthereforsometime.Theemperornoticedthattheleavesinthewaterproducedapleasantsmell.Laterhedecidedtotastethehotmixture.Itwasquitedelici

3、ous.Andinthisway,oneoftheworld’sfavoritedrinkswasinvented.Readthearticleandwriteanswerstothequestions.Whatisthearticleabout?Itisabouttheinventionoftea.Itwasinventedoverthreethousandyearsago.ItwasinventedbytheChineseemperorShenNong.Itwasinventedbyaccident.3.Whowa

4、sitinventedby?4.Howwasitinvented?2.Whenwasitinvented?主动语态:主语是动作的执行者。被动语态:主语是动作的承受者。被动语态结构为：be+过去分词将下列句子变为被动语态。1.Iopenthedoor.Thedoorisopenedbyme.2.Heoftenhelpshomelesspeople.Homelesspeopleareoftenhelpedbyhim.3.Ihandedoutsomepapersjustnow.Somepaperswerehandedoutb

5、ymejustnow.(主动语态)(主动语态)(主动语态)(被动语态)(被动)(被动语态)常用的被动语态短语bemadeoffromintobeusedtodofordoingas由--制成的看出原材料看不出原材料原材料制成成品befilledwithbecoveredwitheg.1.Paperismadewood.from2.Tablesaremadewood.3.Woodismadepaperandtables.ofinto被用来--被用作用--充满被--覆盖Exercise把下列句子变成被动句1.Bellinv

6、entedthetelephone.2.Tomboughtsomebooksyesterday.ThetelephonewasinventedbyBell.Somebookswereboughtyesterday.3.Theyvisitedthecitylastyear.4.MrGreenofteninvitesmetohishouse.5.Peopleallovertheworldlovefootball.Thecitywasvisitedbythemlastyear.IamofteninvitedbyMrGreen

7、tohishouse.Footballislovedbypeopleallovertheworld.6、TheyhavegrownriceinSouthChina.7.Wemustplantmoretreesnextyear.8.Iamgoingtocleanourclassroomtomorrow.Moretreesmustbeplantednextyear.Ourclassroomisgoingtobecleanedtomorrow.RicehasbeengrowninSouthChina.汉译英。（1）计算机是何

8、时发明的？（2）谁发明了计算机？（3）计算器是用来做什么？（4）你认为什么是最有用的发明？（5）每天它能够给人们更多时间工作和玩。1.Whenwasthecomputerinvented?2.Whowasthecomputerinventedby?3.What’sthecalculatorusedfor?4.Whatdoyouth