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Unit4ListeningandSpeakingandReadingandThinking提升测评

I.阅读理解

Atsunamiisanaturaldisaster.Theword“tsunami”comesfromJapanese.

AtsunamiisaverylargeseawavethatformsmainlyinthePacificOceanarea.Peoplemaybekilledandpropertycanbedestroyedwhenatsunamihitsland.

Whatcausesthesedangerousseawaves?Sometimes,tsunamisarecausedbyearthquakestakingplaceunderwater.Afterearthquakeshappen,waterbeginstomoveupanddown.Wavesbegintoform,andeachwaveofthiskindiscalledatsunami.

Atsunamiislessthanonemeterhighandcanmoveataspeedofalmost800kilometersperhourwhileitisfaroutintheocean.Butitriseshigherandhighermovesmoreandmoreslowlyasitcomesclosertoland.

Themeteorologicalbureau（气象局）warnspeopleovertheradioandtelevisionwhenatsunamiisheadingforland.Thesewarningshavehelpedsavemanylives.

1.Accordingtothepassage,atsunamicanbecausedby________.

A.anunderwaterearthquake

B.heavyrain

C.waveshittingland

D.tornados

2.Asthetsunamimovestowardsland,it________.

A.picksupspeedgradually

B.becomesfarlessdangerous

C.riseshigherandhigher

D.becomeslowerandlower

3.Accordingtothispassage,________.

A.atsunamican’tcauselotsoftrouble

B.peoplecansavetheirlivesbythemselveswhenatsunamicomes

C.thewarningsfromthemeteorologicalbureaucanhelppeoplesavetheirlives

D.noonecanescapewhenatsunamiiscoming

II.七选五

DuaneInnes,anengineer,causedacaraccidenttosavethelifeofthedriverBillPace.1ButinbillPace’scase,Innes’decisiontoputhisowncarintoPace’spathsavedPace’slife.

WhileInneswasdrivinghistruck,henoticedPace’struckchangingdirectionsuddenly.2Whenhelookedbackatthedriver,hesawthatPacelostconsciousness（知觉）behindthewheel.Thecarswereapproachingabusycrossroads,andInnesknewthatPacecouldbejustasecondfromadangerou