英语阅读理解答案Thezipperisawonderfulinvention.Howdidpeopleeverlivewithoutzippers?Zippersareverycommon,soweforgetthattheyarewonderful.Theyareverystrong,buttheyopenandcloseveryeasily.Theycomeinmanycolors

　　英语阅读理解答案

　　Thezipperisawonderfulinvention.Howdidpeopleeverlivewithoutzippers?Zippersareverycommon,soweforgetthattheyarewonderful.Theyareverystrong,buttheyopenandcloseveryeasily.Theycomeinmanycolorsandsizes.

　　Inthe1890s,peopleintheUnitedStatesworehighshoeswithalongrowofbuttons,too.Peoplewantedaneasierwaytoputonandtakeoffclothes.

　　WhitcombL.Judsoninventedthezipperin1893.HewasanengineerinChicago.Hecalledthezipperaslidefastener.However,itdidn’tstayclosedverywell.Thiswasnotsatisfactory,andpeopledidn’tbuymanyofthem.ThenDrGideonSundbackfromSwedensolvedthisproblem.

　　Azipperhasthreeparts:1.Therearedozensofmetalorplastichooks(calledteeth)intworows.2.Thesehooksarefixedtotwostripsofcloth.Theclothstripscanbendeasily.3.Afastenerslidesalongandfixesthehookstogether.Whenitslidestheotherway,ittakesthehooksapart.

　　DrSundbackputthehooksonthestripsofcloth,andthereforeheldallthehooksinplace.Theydon’tcomeapartveryeasily.Thissolvedtheproblemofthefirstzippers.

　　1.Zippersarebetterthanbuttonsbecause_____.

　　A.theyaremuchstronger

　　B.theyhavemorecolorsandsizes

　　C.theyopenandclosemoreeasily

　　D.theystayclosedmuchbetter

　　2.Azipperstaysclosedwhenitsfastener_____.

　　A.takesthehooksapartB.slidesalongthehooks

　　C.fastensthehookstogetherD.holdssomehooksinplace

　　3.Theproblemofthefirstzipperswasthat_____.

　　A.peopledidn’tbuymanyofthem

　　B.theywereveryexpensive

　　C.theydidn’tcloseeasily

　　D.theycameapartveryeasily

　　4.DrSundbacksolvedtheproblemofthefirstzippersby_____.

　　A.fixingthehooksontwoclothstrips

　　B.fixingaslidefastenertothetwoclothstrips

　　C.fixingthetwoclothstripsintheproperposition

　　D.fixingdozensofmetalhooksintworows

　　5.Whichofthefollowingisthemainideaofthepassage?

　　A.Azipperhashooks,clothstrips,andaslidefastener.

　　B.Peopledidn’tlikethefirstzippers.

　　C.MrJudsonandDrSundbackgaveusawonderfu