人教版高中英语 课时精练：Unit3__Using__Language课时作业

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1、课时精练：Unit3UsingLanguage课时作业Ⅰ.单词拼写1．Hegavea________(信号)tothedrivertocarryon.2．Hisfatherisabaseball________(教练)．3．Myfatherboughtan________(电子的)dictionaryforme.4．GenerosityispartoftheAmerican________(性格，特征)．5．Thisisanew________(类型)ofmachine，withlotsofmetersonit.6．Couldyouteachme

2、howto________(下载)musicfromtheInternet?7．Hisfirst________(出现)onstagewasattheageofthree.8．Haveyou________(拖)thefloor?9．Thelittleboywasso________(调皮的)thathisteacherdidn'tknowwhattodowithhim.10．Letmeknowifanydifficulties________(出现)．Ⅱ.阅读理解AShoppingonlineinsearchofabargain(便宜货)can

3、oftenleaveyoufeelingdisappointedoroutofpocketratherthansatisfied.Youcanavoidthisbyfollowingoursimpleadvice：PRODUCT—Beforeyoulookforthecheapestpriceyouneedtodecidewhatproductyouactuallywant.Youcandothisbyresearchingonline，theeasiestwayistoGooglefordifferentproductssothatyoucan

4、decideonwhatwouldbebestforyou.SEARCH&COMPARE—Youarenowreadytouseacomparisonwebsitetotryandfindoutthebestprices.Youshouldneverjustuseonecomparisonwebsite，usingtwoormorewillgiveyouabalancedviewofthemarket.Comparisonwebsitesarenecessary.Youneedtofirstcheckoutwhatkindoftechnology

5、asiteuses.AlthoughtheideabehindFroogle(nowcalledGoogleProducts)isattractive，thetechnologyitusesisnotasadvancedassitessuchasKelkooandPricerunner.Froogleusesaregularsearchengine.Anddon'texpectpricecomparisonsitestobeasure－firewayofgettingabargain.Thesiteswillonlyshowproductsfro

6、mcompanieswhopaythem.Thisisnotnecessarilyabadthing—suppliersvaluetheirreputation(名声)andtheirbusinessrelationships.ANDSEARCHAGAIN—Beforeyoubuyyoushouldsearchtheproductusingapricecomparisonservice，thentryagainjustusingastandardsearchengine—itmightfindtheproductwithacheaperprice

7、.IfyouuseFirefoxtosurfthewebthenthere'sanadd－on(附加的)toolthatyoucandownloadwhichfindsthecheapestpriceforaproductforyou.ItiscalledtheInvisibleHandanditisfreetodownload.Forexample，ifyou'reshoppingonlineatAmazon，theInvisibleHandwillpopupandtellyouthatitis￡56cheaperatDixons.Thetoo

8、lwillonlyworkwhenyouarelookingatproducts，soitshouldn'tdisturbyourday