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2020年云南专升本公共英语练习题三套
2020年云南专升本公共英语练习题（一）
Adolphin(海豚)looksmorelikeafishthancertainfishesdo.Itisanexcellent
swimmer.Thedolphinseemstoflashthroughthewater.Likefish,dolphinsare
completelyathomeinthewater.Theretheyplay,feed,sleep,andgivebirthto
theiryoung.Dolphinsliveintheseaandcanliveonlyinthesea.
Yettheyarenotfish.Adolphinmustcometothesurfacetobreathe.Fishcan
takeoxygenfromthewater.Dolphinscannot.Likeus,theybreathewithlungandmust
taketheiroxygenfromtheair.Andtheyaremammals(哺乳动物).
Mostmammalsarelandanimals.Dolphinsareevolvedfromlandanimals.Longago,
dolphinancestors(祖先)leftthelandforthesea.Amongtheanimalswasakindthat
wouldbecomethedolphinweknow.Nooneissureexactlywhatkindofanimalitwas.
Butthereisreasontothinkitwasrelatedtograss-eatinganimalslikethecow.
Moderndolphinsarefish-eaters.Yettheirstomachsarelikethoseofanimalsthat
eatplants.Themake-upoftheirbloodisalsolikethatofgrass-eatinganimals.
1.Thebesttitleforthispassageis.
A.DolphinsB.FishC.MammalsD.Cows
2.Whatcanwelearnfromthefirstparagraph?
A.Adolphinisaspecialkindoffish.B.Dolphinscan’tswimveryquickly.
C.Dolphinscanliveonlyinthesea.D.Dolphinsproducetheirbabiesonland.
3.Differentfromfish，dolphins.
A.liveonland.B.breathewithlungs.
C.breatheunderwater.D.livewithoutoxygen.
4.Dolphinsareevolvedfrom.
A.fish-eatingmammals.B.seaanimals.C.grass-eatingfish.D.landanimals.
5.Whatcanbeinferredfromthepassage?
A.Dolphinshavehighlyevolved.
1/6
B.Mammalsdon’teatplantsatall.
C.Allfishesdevelopedfromlandanimals.
D.Dolphinswereoncecloselyrelatedtohumans.
答案
1、A
2、C
3、B
4、D
5、A
2020年云南专升本公
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