Unit1寒假提前练习 高中英语人教版必修第三册.docx
- 文档编号:2301820
- 上传时间:2022-10-28
- 格式:DOCX
- 页数:11
- 大小:813.07KB
Unit1寒假提前练习 高中英语人教版必修第三册.docx
《Unit1寒假提前练习 高中英语人教版必修第三册.docx》由会员分享,可在线阅读,更多相关《Unit1寒假提前练习 高中英语人教版必修第三册.docx(11页珍藏版)》请在冰豆网上搜索。
Unit1寒假提前练习高中英语人教版必修第三册
2019新人教版必修三寒假练习Unit1
第一课时
一.阅读理解
Microplasticsaretinybitsofplasticoftentoosmalltobeseen.Plasticdoesn'tdecomposelikenaturalmaterials.Instead,itjustbreaksintosmallerandsmallerpieces.Nooneknowsexactlyhowmuchplasticisintheoceans.Sincetheseaissolargeandsodeep,itshardtogetagoodideaofhowmuchplasticitcontains.Butinrecentyears,scientistshavemadegreatereffortstogetamoreaccurateidea.
Somestudieshavesuggestedthatsince1950.about17millionmetrictons(公吨)ofplastichaveenteredtheAtlanticOcean.Scientistsbelievethattheplasticpreviouslyfoundonbeachesandonthesurfaceofthewaterisonlyabout1%ofalltheplasticintheoceans.ResearchersfromtheUnitedKingdom(UK)wanttofindoutwheretheother99%was.
Fortwomonthsin2016theresearcherstooksamplesat12differentlocationsintheAtlanticOceanfromtheUKtoSouthAmerica.Theycollectwatersamplesfromthreedifferentdepthsinthetop200meters.Byrunningthewaterthroughspecialfllters(过滤器),theywereabletocollectthemicroplastics,whichtheycouldviewandstudywithamicroscope.
Basedontheirmeasurments.theresearcherslearnedthatjustthetop200metersoftheAtlanticOceanholdsbetween12and21millionmetrictonsofplastics.ButtheAtlanticOceanisverydeep,andthescientistsonlycheckedthetop200meters.TheysaythatifmicroplasticsarespreadthroughtherestoftheAtlanticliketheywereinthetop200meters,thintherearcprobablyabout200millionmetrictonsofmicroplasticsintheAtlanticOcean.
ThoughthescientistsonlystudiedtheAtlanticoceantheresultssuggestthattheremaybefarmoremicroplasticinalloceansthanwerealized.Theproblemsgofarbeyondoceanpollution.MicroplasticparticleshavebeenfoundjustineverywherearoundtheworldfromAntarcticatothebottomofthesea.
Scientistpredictthattheamountofplasticenteringouroceansislikelytotripletoverthenext20years.Havingagoodideaofhowmuchplasticisalreadythenmightbeagoodfirststeptofightingtheproblem.
5.Whatdocstheunderlinedword“decompose”inParagraph1mean?
A.turnupB.breakdownC.giveoffD.bringout
6.Whatisthelatestideaabouttheplasticintheseas?
A.Previousdataofplasticconsistsofonlyaverysmallpart.
B.Thereisonly17millionmetrictonofplasticontheearth.
C.Theamountofplasticintheseasisonthedecreaseinrecentyears.
D.Theamountofplasticintheseasisincreasingby1%yearly.
7.Whatistheauthor’sattitudeaccordingtothetext?
A.Pessimistic.B.Confident.C.Objective.D.Conserved.
8.Whatdoestheauthorexpecttotakeplace?
A.Morepollutantswillturnoutinthefuture.B.Measureswillbetakentodealwithplastic.
C.Theoceanswillbecleanedinthefuture.D.Morepeoplewillbeawareofplasticpollution.
二.七选五
Whileitmayseemlikeeveryonesurfsthewebthesedays,thereisfinelinebetweencasuallycheckingyoursocialmediapagesandhavingafullblownInternetaddiction.IfyoufearthatyoumayloseinterestinotheraspectsofyourlifebecauseyouprefertobeontheInternet,youmaybeonyourwaytoanInternetaddiction.___1__
Admityouareatriskofanaddiction.
MoreandmorepeopleintheworldarebecomingaddictedtotheInternet.Youarenottheonlyonewiththisproblem;itisbecomingmoreandmorecommonandmoreandmorewellknown.___2___.
Setasidelimitedtimeforcomputeruse.
Makesurenottoturnitontoomanytimesaweek.Ifyouhavealaptop,makesuretoputitsomewherethatyoucanrememberbutnotsomewherethatyouseeeveryday.Trykeepingthelidclosedwhenyouarenotusingit;___3___IfyouhaveadesktopPC,trynottogonearitorputsomethingoveritlikeasheet.
Callpeopleinsteadofsendinginstantmessagesortexts.
Ifyouarefreeonweekends,callfriendsandaskthemtogooutside.Thiswilldistractyoufromthecomputer.___4___
Useanalarmclockortimer.
Beforeusingyourcomputer,decideonatimelimitsuchas30minutes.Settheclockortimerandmakesurethatyougetoffthecomputerwhenthetimeisup.Alternativelycreateashutdowntimeronyourdesktop.___5___.
A.Makeasmalllistofwhatyouwanttodowithinthattime.
B.Whenthecomputerisnotlookingatyouyouarelesslikelytouseit.
C.Thiscanbeprogrammedtoshutdownyourcomputerafterthesettime
D.Luckily,therearewaystoavoidlivingyourlifeinfrontofthecomputer.
E.ThiswillstopyoufromusingtheInternetsooftenorgoingontoanotherpage.
F.Ifyouhaveaproblemonweekdays,phoneyourfriendsoraskforhelpinperson.
G.Donotbeembarrassed;findotherswiththesameproblemandhelpeachotherbeatit.
三.语法填空
Asyouknow,scienceplays____1____veryimportantroleinoureducation.Doyouwanttok
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Unit1寒假提前练习 高中英语人教版必修第三册 Unit1 寒假 提前 练习 高中英语 人教版 必修 第三
![提示](https://static.bdocx.com/images/bang_tan.gif)