【牛津（广州，深圳，沈阳）版】九年级下U5Sport

（B卷提升篇）

学校：__________班级：__________姓名：_________考号：___________

温馨提示：

本试卷共分第Ⅰ卷和第Ⅱ卷两部分，第Ⅰ卷为选择题；第Ⅱ卷为非选择题；满分为90分，考试时间为100分钟。

第Ⅰ卷选择题

语法选择(共15小题，每小题1分，满分15分)

Coldweatherduringwintermonthsmaykeepmanypeoplefromleavinghomeandrunningin_____1____openair.However,anewstudyshowsthatthedropintemperatureisagoodreasontorun.Infact,researcherssaythatyourperformance（身体机能）____2_____whenyourunincoldweather.

Manypeoplesayrunninginwinterisdifficult.Tworeasonsarethelowtemperaturesandbitterwinds.Yetmanyrunnersmightfinditeasierthanrunninginhotweather,____3_____lowertemperaturesreducestressonthebody.Whenyourunincoldweather,yourheartrateislowerthaninwarmerconditions.Besides,thebodyneedslesswater____4_____acolddaythaninwarmweather.

ThisinformationcomesfromJohnBrewer,asportsscientist_____5____worksatSt.Mary’sUniversityinLondon.Brewersayseverymovementproducesheat.Heexplainsthatonewaytoloseheat____6_____bysweating（出汗）,______7___thebodyalsolosesheatbytransportingthebloodtothesurfaceoftheskin.Butsweatingputsmuchstrain（张力）ontheheart,particularlyinhotconditionsbecauseitis___8____hardertoloseheatwhentheexternal(外部)environmentiswarmaswell.

Inaddition,runninginhighertemperaturesresultsinfasterheartrates.Scientistsfound___9______heartrateswereabout6percenthigherinthehotterconditions.However,runningincoolertemperatureshas____10____advantages.Oneisthatthebodydoesnothavetoworksohardtopumpblood(泵出血液)tothe_____11_____surfaceincoolertemperatures.____12______meansrunningrequireslessenergy.Severalwebsitesnotethatthemostimportantthingforpeople_____13_____incoldconditionsistoweartherightclothing.And_____14_____,keepingasdryaspossibleisveryimportantwhen_____15_____inlowtemperatures.

1．A．a B．an C