九年级Unit6sectionA第二课时VIP免费

HeelScoopElectricitystylen.鞋跟n.勺；铲子n.电n.样式；款式WordspreviewA:Whenwasthe_______invented?B:Ithinkitwasinventedin______.A:Whenwasthe_______invented?B:Ithinkitwasinventedin______.19711885187619271879Wasitinventedbefore/after/in…?lightbulb1879lightbulb1879Whenwasitinvented?Itwasinventedin1879.Whowasitinventedby?ItwasinventedbyEdison.What’situsedfor?It’susedforseeinginthedark.Car1885Whenwasitinvented?Whowasitinventedby?Whatisitusedfor?Benz.Itwasinventedin1885.Itisusedfortravelingfast.ItwasinventedbyBenz.Itisusedforwakingpeopleupinthemorning.Itisusedforwakingpeopleupinthemorning.analarmclock.Whatisitusedfor?A:Whatisthe________usedfor?B:Itisusedfor__________________A:Whatisthe________usedfor?B:Itisusedfor__________________makingthefoodhot.(makethefoodhot)A:Whatistheusedfor?B:Ithinkitisusedfor________.(work)working观察与思考：beusedfor意为“被用来做……”，介词for表示目的和用途，后面接______或______。例如：Knivesareusedfor______________刀子是用来切东西的。•练习：翻译句子•(1)它用来在黑暗中照明。______________________________•(2)钢笔是用来写的。_________________________________名词动名词cuttingthingsItisusedforseeinginthedark.Thepensareusedforwriting.1879Edisonseeinthedark1839Daguerre[də'ger]takepicturesA:Whenwas____________invented?B:A:Whowasitinventedby?B:A:Whatisitusedfor?B:It’simaginationthatmakestheworldcolorfulandpeoplehaveneverstoppedtryingtoturndreamsrealistic.Thousandsofinventionscomeouteveryyear…Listenandnumbertheinventions[1-3]intheorderyouhearthem.2a___shoeswithspecialheels___shoeswithlights___hotice-creamscoop,runsonelectricity123InventionWhatisit/aretheyusedfor?shoeswithspecialheels________thestyleoftheshoesshoeswithlightsseeing___________hotice-creamscoop________reallycoldice-creamListenagainandcompletethechart.2bchangingservinginthedarkMakeconversationsusingtheinformationin2b.Whataretheshoeswithlightsusedfor?2cThey’reusedforseeinginthedark.Whatarehotice-creamscoopusedfor?They’reusedforservingforreallycoldice-cream.Whatareshoeswithspecialheelsusedfor?They’reusedforchangingthestyleoftheshoes.Thefirstinventionisshoeswith________.Peoplealwayshittheirtoeson__________onthewaytothebathroomatnight.Sopeoplecanusethemfor________inthe______.Listenagainandfillintheblanks.somethingseeingdarklightsThesecondinventionisaspecialice-cream______.Itrunson_________andbecomeshot.It’s_____forservingreally_____ice-cream.scoopelectricityusedcoldThelastinventionisshoeswithspecial_____.Peoplecanmovetheheels_____and______.Youcan_____theheelsifyouaregoingtoa______or______themifyouarejustgoingoutfor_________.heelsdownupraisepartylowershoppingThehistoryofzippers•拉链的出现是一个世纪之前的事。当时，在欧洲中部的一些地方，人们企图通过带、钩和环的办法取代钮扣和蝴蝶结，于是开始进行研制拉链的试验。•1893年，一个叫贾德森的美国工程师，研制了一个“滑动氏没紧装置”，并获得了专利，这是拉链最初的雏形。这项装置的出现，曾对在高统靴上使用的扣钮扣钩造成了影响。但这一发明并没有很快流行起来，主要原因是这种早期的锁紧装置质量不过关，容易在不恰当的时间和地点松开，使人难堪。•1913年，瑞典人桑巴克把金属锁齿附在一个灵活的轴上。其工作原理是：每一个齿都是一个小型的钩，能与挨着而相对的另一条带子上的一个小齿下面的孔眼匹配。•拉链最先用于军装。第一次世界大战中，美国军队首次订购了大批的拉链给士兵做服装。但拉链在民间的推广则比较晚，直到1930年才被妇女们接受，用来代替服装的钮扣。•拉链是在1926年获得现在...