B(2015•安徽)Doyousleepwell?Ifyouranswerisnothefollowingmighthelpyou.SetacertainbedtimeandrisingtimeAcertainbedtimeandrisingtimecanhelpyoubuildupyourbodyclocks.Setabedtimewhichisgoodandnat

　　      B

　　(2015•安徽)Doyousleepwell?Ifyouranswerisnothefollowingmighthelpyou.

　　Setacertainbedtimeandrisingtime

　　Acertainbedtimeandrisingtimecanhelpyoubuildupyourbodyclocks.Setabedtimewhichisgoodandnaturalforyou.Don’tchangeyourbedtimeandrisingtimeonweekends.

　　AvoidexcitingactivitiesjustbeforesleepingExcitingactivitiesgetyourthoughtsrunning.Atthesametimeifyoumaketomorrow'splanorreadanexcitingstorybeforeturningoffthelightitdoesn’tgiveyouenoughtimetorelaxbeforeyoutrytosleep.

　　KeepthebedroomforsleepingonlyIt5sabadhabitforyoutouseyourbedroomasaplacetoeatwatchTVreadtalkonthephoneordiscussimportantmatterswithyourfamilymembers.Breakthathabittogetbettersleep.

　　Don’tgotobedtooearlyYourbodyusuallyletsyousleeponlythenumberofhoursitneeds.Youshoulddecidehowmanyhoursyoumustsleepinordernottoexperiencedaytimesleepiness.

　　Takeawarmshowerbeforeyourbedtime

　　Atwenty-minutewarmshoweratatemperatureofabout45-50notonlyisagreatrelaxataday'sendbutalsoraisesyourbodytemperaturebyseveraldegrees.Thecomingdropintemperatureofyourbodywillnaturallymakeyoufeelsleepy.

　　4.Ifyouwanttobuildupyourbodyclocksyoushould.

　　   A.setacertainbedtimeandrisingtime

　　   B.gotobedneithertooearlynortoolate

　　   C.keepthebedroomforsleepingonly

　　   D.takeawarmshowerbeforesleeping

　　5.Whyshouldyouavoidexcitingactivitiesjustbeforesleeping?

　　   A.Becausetheywillgetyourthoughtsrunning.

　　   B.Becauseyouhavetomaketomorrow'splan.

　　   C.Becauseyoushouldreadanexcitingstory.

　　   D.Becauseyouwillhavetoturnoffthelight.

　　6.Yourbedroomshouldbekeptforonly.

　　   A.talking   B.eating   C.reading   D.sleeping

　　7.Accordingtothepassagewillmakeyoufeelsleepy.

　　   A.takingacoldshower   B.thedroppingofyourbodytemperature

　　   C.yourdailyexpe