2025年英语专业四级考试——自然科学完形填空高难试题集
一、单项选择题
要求：从每小题的四个选项中选出可以填入空白处的最佳选项。
1.Thehumanbrainissocomplexthatscientistsarestillstrugglingtounderstandits__________functions.
A.essential
B.fundamental
C.vital
D.fundamentalandessential
2.Accordingtorecentstudies,the__________ofalanguagecangreatlyinfluencethewaywethink.
A.structure
B.syntax
C.grammar
D.vocabulary
3.Theprocessofphotosynthesisinplantsinvolvesthe__________ofcarbondioxideandwatertoproduceglucoseandoxygen.
A.conversion
B.transformation
C.combination
D.reaction
4.Thetheoryofplatetectonicsexplainsthe__________oftheEarthscrustandthemovementofcontinents.
A.formation
B.origin
C.composition
D.dynamics
5.Inordertoprotecttheenvironment,manycountrieshaveimplemented__________policiestoreducegreenhousegasemissions.
A.environmental
B.ecological
C.sustainable
D.renewable
二、完形填空
要求：阅读下面短文，从每小题的四个选项中选出可以填入空白处的最佳选项。
Thestudyof__________hasalwaysbeenanimportantfieldinthenaturalsciences.ItinvolvestheinvestigationoftheEarths__________andthe__________thatoccurwithinit.Geology,asa__________ofnaturalscience,aimstounderstandthe__________oftheEarthandits__________.
Inthepast,geologistsbelievedthattheEarthwas__________andunchanging.However,intheearly20thcentury,thetheoryof__________wasproposed,whichrevolutionizedourunderstandingoftheEarths__________.
ThetheoryofplatetectonicssuggeststhattheEarthscrustisdividedintoseveral__________platesthatmoverelativetoeachother.Thismovementleadstovarious__________,includingearthquakes,volcaniceruptions,andtheformationofmountains.
Anotherimportantaspectofgeologyisthestudyof__________.Fossilsprovidevaluableinformationaboutthe__________oflifeonEarthandthe__________thathaveoccurredovermillionsofyears.
Today,geologistsuseavarietyoftoolsandtechniquestostudythe