河南省2023-2024学年八年级第一学期学习评价（4）物理试卷答案试卷答案,炎德英才答案网站目前收集并整理关于河南省2023-2024学年八年级第一学期学习评价（4）物理试卷答案试卷答案得系列试题及其答案，更多试题答案请关注我们

河南省2023-2024学年八年级第一学期学习评价（4）物理试卷答案试卷答案

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So,ifyou'reconvincedthatthisisforyou,takeadvice:approachitwithcaution,swimwithafriend,andmaybestartinthesummer,whenthewatertemperaturesarehigher.A.Cold-waterswimmingcansubstituteformedicine.B.However,manyparticipantssaytheygetusedtoit.C.Ifyoudon'tmindgettingwet,itcanbefuntoo.D.It'salsothoughttostrengthenourdigestivefunction.E.Weallknowexercisecanextendpeople'slifespan.F.Forexample,ithelpsreducethestressofexercisingathighaltitudes.G.Cold-waterswimmingcanfunctionasadoseofmedicine.【语篇导读】本文是一篇说明文

文章主要介绍了冷水游泳的诸多好处，比如强身健体、提升幸福感、缓解压力、锻炼意志力等

5.C根据上下文可知，设空处应是承上启下的句子，继续补充说明游泳带来的好处，尤其是精神层面的

结合选项可知，C项切题

6B根据上下文可推知，设空处与上文构成转折，表明冷水游泳虽冷，但许多参与者都已经习惯了冷水游泳，承接下文讲冷水游泳的好处，结合选项可知，B项切题

7G设空处位于本段段首，应为本段的主题句

根据下文可知，本段主要说明冷水游泳可以治愈某些健康问题

故G项能够概括本段的主要内容，切题

8.D根据设空处上文Doctorssaygettingintocoldwatermakesastressresponse,butthemoreyoudoit,yourreactiontostressisreduced..以及下文Inaddition,cold-waterswimmingcanexerciseswimmers'willpower.可知，设空处应是继续介绍冷水游泳的其他好处，D项切题

9.F根据上文Someexpertsbelievecold--waterswimminghelps“cross-adaptation'”,whereoneformofstresspreparesthebodyforanother.可知，这个表述显然有些抽象，F项正好对此进行举例说明，切题

三、完形填空（共20小题；每小题2分，满分40分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项

Youarewhatyoueat,somaybeit'stimethatyoustartedeatingwisely.ExpertsatthefirstChineseStudentsNutritionandHealthFestivalinKunmingdidasurveylastweek10youngpeople'sbadeatinghabit:watchingtelevision11havingmealsorsnacks.Doingthismeansyoudon'tpay12toyourfood,forgethowfullyouare,andsoovereat.Itcanalso13digestiondiseases.Onewayto14thisisonlytoeatincertainareasofyourhome.Itisnotgoodtohavesnacksinsteadof15.Manystudentsthinkthateatingsmallsnackscanhelp16.Butitoftenresultsinovereatingandhealthproblemsrelated17ashortageofvegetables,carbohydrates(a碳水化合物)andvitamins.Snackingonlyworks18itiswellplannedandifit19healthyfoodssuchasnuts,vegetables.20ratherthanwaterisverybad,too.Gaswhichcancause21problems.Waterisimportantinmakingyourbraincellsandevery22inyourbodyworkproperly.Foryourbodyto23fat,itneedsatleasteightglassesof24wateraday.Liquidslikesodaandcoffeeactuallywill25waterfromyourbody.Refusingtodrinkmilkisanotherunhealthyhabit.Milkisthebestnaturalfood-it26youwithprotein,whichmakesyourbonesstrongandteethhealthy.Choosingmeatandcertainvegetablesoverothers.Differentfoodsprovidedifferentkindsof27.Ifyoudon'thaveabalanceddiet,thiscanresultinaweakerbody.Childrenlovebright-coloredfoods.Somefoodmanufacturers(制造厂，生产商)addextrapigments(色素)to28kids,Buttheseareinfact29.Eatingthroatpillsasiftheyweresweetsisanunhealthyeatinghabit,too.10.A.findingoutB.foundoutC.findingD.found11.A.butB.whileC.orD.and12.A.moneyB.billsC.attentionD.back13.A.causeB.affectC.produceD.make14.A.keepB.causeC.avoidD.get15.A.vegetablesB.mealsC.foodD.fruit16.A.readB.thinkC.studyD.diet·42·

河南省2023-2024学年八年级第一学期学习评价（4）物理试卷答案第一部分

9.两台起重机都在匀速吊起货物,甲机吊起的货物质量与乙机吊起的货物质量之比为1:3,吊起的高度之比为5:2,所用的时间之比为4:3,则两台起重机的功率之比P甲:P乙为(BA.8:45B.5:8C.10:9D.10:1

河南省2023-2024学年八年级第一学期学习评价（4）物理试卷答案第二部分（待更新）

21.小刚想测量燃气的热值,他用燃气灶把2kg、初温为25^C的水加热到100^C。,然后查看燃气表消耗了0.03m^3的燃气,假设燃气完全燃烧,同时查阅到燃气灶的效率为40%。[已知水的比热容c水=4.210^3J//k],求;(1)水吸收热量;(2)燃气的热值。Q放