Unit+5+Into+the+Unknown+Using+language+练习 高二英语外研版（2019）选择性必修第四册

UsinglanguageI.

从方框内选择合适的单词补全下列短语，然后用短语的正确形式完成下列句子（每项限用一次）。run,set,clear,out,throw,waters,from,twicea.steer________of

b.________forone'slife

c.check________d.think________e.________out

f.testthe________g.shrink________

h.________oneselfinto1.We________________tofindthetruthbehindthemysterylastyear.2.Theclosedtouristareasarealwaysdangerous,so________________themwhenyoupayavisittothisancientcity.3.Ancientpeoplealways________________whentheycameacrosswildanimals.4.John'sbeen________________hisworktodeveloprenewableresourcesintheocean.5.Maybeweshould________________aboutinvestingsomuchmoneyinaprojectweknowsolittleabout.6.Mybrotherisalwayscuriousabouteverythingashenever________________steppingintotheunknown.7.Theresearchers________________theexperimentalresultstomakesuretherewerenoerrorstomisleadtheirjudgements.8.Yourideasaboutthemysteriouseventmightnotbepopularwithpeople,sobeforeyoustartpresentingityoushould________________.II.

从括号内选择合适的连接词完成下列句子。1.Itsuddenlyoccurredtohim________(which,that)hehadgotlostintheforest.2.Greenformsofenergyare________(what,how)weneedtoslowglobalwarming.3.Itisbynomeansclear________(what,how)thescientistswillsaytoexplainhowMayacivilisationvanished.4.Itdoesn'tmatter________(whether,why)youturnrightorleftatthecrossing—bothroadsleadtothemysteriousruins.5.Thenewcomerwenttothelibrarytheotherdayandsearchedfor________(whatever,wherever)hecouldfindaboutStonehenge.6.Evidencehasbeenfoundthroughyearsofstudy________(that,why)thedinosaurswentextinctabout65millionyearsago,afterlivingonEarthforabout165millionyears.III.

阅读下面短文并完成其后的问题。It'shumannaturetowanttouncoverthetruthabouteverything.However,therehavebeenanumberofoccurrencesthroughouthistorythathavedefiedexplanation,oratleastthathavepersistentlybeenlabeledasmysterious.UnexplainedPhenomenaIntroductionsBigfootItwasfirstseeninNorthAmerica.Witnessesdescribeditasanape-like(像猿的)creature.Someofthemaresaidtobe6-10feettall,weighingover500poundsandcoveredinbrownorredfurwithlargeeyesandbigheads.Footprintsupto24incheslonghavebeenfound.Researchershavefoundthingsrelatedtoit,suchaswaste,furandsoon.Butsofartherehasbeennootherevidencetoproveitsexistence.UFOsThereisnodoubtthatUFOs(UnidentifiedFlyingObjects)exist

—

manypeopleseethingsintheskiesthattheycan'tidentify,rangingfromaircrafttometeors(流星).Whetherornotanyofthoseobjectsandlightsarealienspacecraftisanothermatterentirely.Whilecarefulinvestigationhasrevealedknowncausesformostsightings,someUFOincidentswillalwaysremainunexplained.BermudaTriangleTheBermudaTriangle,whichisanareaintheAtlanticOcean,isknownastheDevil'sTriangle.Themysteryhereisthattheareaseemstobeextremelydangerousandlotsofshipsandplaneshavedisappeared.Thoughscientistsworldwidearestillattemptingtogettothebottomofthisproblem,nohardproofhasbeenabletothrowlightonitsofar.CropcirclesCropcirclesarestrangepatternsthatappearmysteriouslyovernightinfarmers'fields.ThecirclesaremostlyfoundintheUnitedKingdom,buthavespreadtodozensofcountriesaroundtheworldoverthedecades.Themysteryhasinspiredcountlessbooks,blogs,fangroups,researchersandevenHollywoodfilms.1.WhatthingshaveresearchersfoundthatrelatetoBigfoot?

2.IsthereenoughevidencetoprovethatUFOsarealienspacecraft?

3.WhatmakestheBermudaTrianglemysterious?

4.Wherearecropcirclesfound?

参考答案UsinglanguageI.a.clear

b.run

c.out

d.twice

e.set

f.watersg.from

h.throw1.setout

2.steerclearof

3.ranfortheirlives

4.throwinghimselfinto

5.thinktwice

6.shrinksfrom

7.checkedout

8.test