2025外研版八上英语专项练习之阅读理解Unit 6 When disaster strikes（含.pdfVIP

Unit6.Whendisasterstrikes

A

Adebrisflowisafast-moving,powerfulmixtureofwater,soil,rocks,andeven

largetrees.It’strulyoneofthemostmenacingnaturaldisasters.Heavyrainisa

commontrigger.Whencontinuousdownpourssoaktheground,thesoillosesitsgrip

onthemountainside.Earthquakescanalsoplayarole,shakinglooserocksandsoil.

Deforestation,wheretreesarecutdownwithoutrestraint,worsensthesituation,as

rootsthatonceheldthesoilinplacearegone.Then,thewater-saturatedsoil,along

withrocksandtrees,rapidlyrushesdownslopes,likeanunstoppablefreighttrain,

crushinganddestroyingeverythinginitsway.​

Debrisflowscanbringaboutextremelyseriousproblems.Theycancompletely

washawayhouses,bridges,androads,instantlyturningpeople’shomesintoruinsand

leavingfamilieshomeless.Thesedestructiveflowsalsoravagefarms,ruiningcrops

andendangeringlivestock.In2020,asmalltowninChinasufferedadevastating

debrisflow.Injustafewhours,manybuildingswereflattened,anddozensofpeople

wereseverelyhurt,theirlivesforeverchanged.​

Ifyoufindyourselfnearadebrisflow,thekeyistoactquickly.Runtohigher

groundimmediately,asfastasyourlegscancarryyou.Never,underany

circumstances,trytocrosstheflowingmudormovedownhill,astheseactionscan

leadtobeingsweptaway.Additionally,stayinginformedaboutweatherwarnings

throughappsorlocalnews,andavoidinglivingnearsteepslopesinthefirstplace,

cangreatlyincreaseyourchancesofstayingsafefromthisterrifyingdisaster.

1.Whatdoesadebrisflowmainlyconsistof?

A.OnlywaterandsoilB.Water,soil,rocksandlargetrees

C.JustrocksandtreesD.Airandsand

2.WhichofthefollowingisNOTacauseofdebrisflows?

A.GentlebreezeB.HeavyrainC.EarthquakesD.Deforestation

3.WhathappenedtothesmalltowninChinain