2025年托福考试听力特训试卷四十六：生物科技与人类未来
考试时间：______分钟总分：______分姓名：______
一、选择题
要求：选择每个句子中缺失的正确单词或短语。
1.Theadvancementsinbiotechnologyhaveopenedupnumerousopportunitiesforimprovinghumanhealth.
a)enhancements
b)developments
c)discoveries
d)innovations
2.GeneticengineeringallowsscientiststomanipulatetheDNAoforganismsforvariouspurposes.
a)modify
b)alter
c)change
d)adjust
3.TheuseofrecombinantDNAtechnologyhasrevolutionizedthepharmaceuticalindustry.
a)transformed
b)reformed
c)restructured
d)reshaped
4.Nanotechnologyhasthepotentialtodiagnoseandtreatdiseasesatacellularlevel.
a)microscale
b)molecular
c)nanoscale
d)mesoscale
5.Bioprintingisa3Dprintingtechniquethatuseslivingcellstocreatebiologicalstructures.
a)organic
b)biological
c)organic
d)living
6.Bioreactorsareusedtoproducelargequantitiesofbiologicalsubstanceslikeinsulin.
a)reactors
b)containers
c)chambers
d)vessels
7.CRISPR-Cas9isagroundbreakinggene-editingtoolthatcancorrectgeneticmutations.
a)technology
b)technique
c)method
d)approach
8.Theuseofstemcellsinregenerativemedicineholdspromisefortreatingvariousconditions.
a)potential
b)hope
c)prospect
d)expectation
9.Biotechnologyhasplayedacrucialroleincombatingclimatechangebydevelopingbiofuels.
a)vital
b)essential
c)important
d)significant
10.Theethicalimplicationsofbiotechnologyareatopicofongoingdebateanddiscussion.
a)moral
b)ethical
c)philosophical
d)legal
二、简答题
要求：回答以下问题，每题不超过100字。
1.Whatisgeneticengineering,andhowdoesitdifferfromnaturalselection?
2.Explaintheroleofbioreactorsintheproductionofbiologicalsubstances.
3.Describethepotentialbenefitsofnanotechnologyinmedicine.
4.HowdoesCRISPR-Cas9workasagene-editingtool?
5.Whatarestemcells,andhowaret