2018_2019学年高考英语一轮复习unit21humanbiology高考试卷分块专练北师大版选修720180608181

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1、Unit21HumanBiology高考试卷分块专练第一节(共15小题；每小题2分，满分30分)A(2018·张家界模拟)Planningtogotoagym?Ifyouareoneofthosewhohavespentmanydaysplanningtojoinagymortoattenditregularly,thenwhynotchoosesomehomeexercises?Herearesomehomeexerciseswithoutequipment.JumpingjacksThisoneis

2、thebesthomeworkoutwithoutweights,whichisagreatexercisethatwillworkyourhandsandlegs.Performthisexercisebystandingwithyourfeetplacedtogetherandarmsatyoursides.Nowtuckinyourabs(收腹)andjumpbybendingyourknees.Atthesametime,moveyourfeetapartasmuchasyoucanandrai

3、seyourhandstobringintolinewithyourshoulders.Whileyoucomebackyoumustbeinastartingposition,feettogether,handsatsidesandkneesbent.Youmustlandonyourheelsandagainjump.JoggingJoggingisoneofthebesthomeexerciseswithoutweights.Youdon'tneedtohavealawnorjoggingtrac

4、kathometoperformthisexercise.Therearemanybenefitsofjogging.Itwillworkyourentirelegs.Moreover,itisaclassiccardiovascular(心血管的)workout.Makesureyouwearjoggingfootwearevenifyouarejoggingathometoavoidanystressonyourfeet.Also,youcangraduallyincreasethejoggingt

5、imeandspeed.Rotating(旋转)exerciseStartbyrotatingyourwrists,clockwise(顺时针方向地)andanticlockwise.Now,alternatelyrotateyourfeetinthesamefashion.Nowplacebothyourhandsontheshouldersandstartrotatingyourshouldersclockwiseandanticlockwise.Placeanexercisematandliefl

6、atonyourback.Nowliftyourleftlegandrotateitclockwise;donotbendyourknees.Nowresttheleftleg,liftyourrightlegandrotateitanticlockwise.Itisnecessarytosetaperfectmoodforexercisewhichwillhelpyousticktotheexerciseroutineandexcitement.Makesureyouwearproperexercis

7、eclothestoperformtheworkoutwithease.Also,puttingonyourfavoritemusicwillmakeyourexercisesessionmorelively.Ifyougetboredwithexercises,justdance,afterallit'salsooneofthebesthomeexercises.21．Whilejoggingathome,you________.A．mayexerciseyourbodyentirelyB．hadbe

8、tterchooseapairofpropershoesC．shouldfindaspaceasthejoggingtrackfirstD．muststicktoafixedtimeandspeed解析：选B　细节理解题。根据Jogging部分的第六句“Makesureyouwearjoggingfootwearevenifyouarejoggingathometoavoidanystressonyourfeet.”可知，在家中慢跑时也要确