2019_2020学年高中英语课时分层作业5LearningaboutLanguage（含解析）外研版选修8

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1、课时分层作业(五)[语言知识练习固基础]单句语法填空1．Thestudentsbegintheirclassesatafixed(fix)time.2．ThepoemissocomplicatedthatIcannotmakeoutitsmeaning.3．Chewing(chew)yourfoodwellbeforeyouswallowisgoodforyourstomach.4．Ifplasticandrubberareburnt,they'llgiveoffpoisonous(poison)gases.5．BeforeenteringahouseinsomeAsiancountr

2、ies,it'sgoodmanners(manner)totakeoffyourshoes.6．Shedidn'tdaretogoagainstherfather'swishesandwenttotheartschoolagain.7．Themanisinfamous(famous)andoftendoessomethingillegal.8．Itisawonderthatheremainsaliveafterdroppingfromtheroofofatenstoreybuilding.9．Theheadmaster'srequirement(require)isthatallthe

3、studentswearschooluniformsatschool.10．Somepeopletriedmanywaystoloseweight,endingupgaining(gain)weightsoonagain.[高考题型练习提能力]Ⅰ.阅读理解Thousandsofyearsagopeoplechewedguminthenaturalform.Themostcommonancientchewinggumwastreeresinlumps，butpeoplealsochewedvarioussweetgrasses，leaves，grainsandwaxes.Chewingg

4、umhasbeenusedinvariousformsandflavors.Thefirstcommercialchewinggumwasmadeandsoldin1848byJohnBaconCurtis.HecalledhischewinggumtheStateofMainePureSpruceGum.JohnBaconCurtisandhisbrothercameupwiththepracticalideaofhowtomakeandsellsprucegumaschewinggum.OnJuly27，1869，AmosTylerreceivedthefirstpatentint

5、heUnitedStatesforchewinggum.However，Tylerneversoldhisgumcommercially.AnOhiodentist，WilliamFinleySemplewashonoredforthisworkusingthefirstpatenttomanufacture(大量生产)chewinggumsinceDecember1869.In1869，MexicanGeneralAntonioLopezdeSantaAnnatoldhisideaofchicle(糖胶树胶)toThomasAdams.Adamstriedtomaketoys，mas

6、ks，andrainbootsoutofchicle，butnoneofhisproductswerecommerciallysuccessful.Thenhesimplyaddedflavortothechicle!Thatwasthefirststepincreatingtheworld'sfirstmodernchewinggum!ThefirstmassmarketedchewinggumwascalledAdamsNewYorkChewingGum.Inthe1870s，Adams&Sonssold“SourOrange”flavoredgumasanafterdinnerc

7、andy.In1871ThomasAdamspatentedamachineforthemanufactureofgum.However，allthesekindsofgumhadonebigproblem:theycouldnotholdflavor.Theproblemwithholdingflavorwasnotfixeduntil1880，whenWilliamWhitecombinedsugarandcornsyrupwithchic