The english homework

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1、The UnitedStates iswell-knownforitsnetworkofmajorhighwaysdesignedtohelpadrivergetfromoneplacetoanotherintheshortestpossibletime.__21__thesewidemodernroadsaregenerally__22__andwellmaintained,with__23__sharpcurvesandmanystraight__24__,adirectrouteisnotalwaysthemost__25__one.Lar

2、gehighwaysoftenpass__26__scenicareasandinterestingsmalltowns.Furthermore,thesehighwaysgenerally__27__largeurban centres whichmeansthattheybecomecrowdedwith__28__trafficduringrushhours,__29__the“fast,direct”waybecomesaveryslowroute.       However,thereis__30__alwaysanotherrout

3、etotake__31__youarenotinahurry.Notfarfromthe__32__new“superhighways”,thereareoftenolder,__33__heavilytravelledroadswhichgothroughthecountryside.__34__ofthesearegood two-lane (双车道)roads;othersareunevenroads__35__throughthecountry.Thesesecondaryroutesmaygoupsteepslopes,alonghig

4、h__36__,ordownfrighteninghillsidesto towns__37__indeepvalleys.Throughtheselessdirectroutes,longerandslower,theygenerallygotoplaces__38__theairiscleanandthe scenery (风景)isbeautiful,andthedrivermayhavea__39__togetafresh,clean__40__oftheworld.21.A)Although          B)Since      

5、                  C)Because                 D)Therefore22.A)stable               B)splendid                    C)smooth                  D)complicated23.A)little                 B)few                          C)much                     D)many24.A)selections          B)separat

6、ions                C)series                     D)sections25.A)terrible             B)possible                    C)enjoyable               D)profitable26.A)to                    B)into                          C)over                      D)by27.A)lead                 B)conn

7、ect                     C)collect                   D)communicate28.A)large                B)fast                           C)light                      D)heavy29.A)when                B)for                           C)but                        D)that30.A)yet                

8、   B)still                          C)almost                   D)qui