定干了某事”
第4页共28页4
fmaymighthavedo
e对过去的推测，表“可能已经干了某事”
eed
’thavedo
e本不必做某事却做了shouldhavedo
e本该做而未做should
’thavedo
e本不该做却做了egShemayhavesaidsoI
thosecircumsta
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Couldhehavereadthebook练习：1I
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第5页共28页5
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or
either系动词助动词情态动词另一个主语，as…as…1compete
vi比赛；竞争
competewithagai
stsbforsth为争取某物和某人对抗competewithsbsthcompetei
competitio
competitive与…媲美，比得上参加…比赛竞争

adj
比赛有竞争力的比赛者；对手
competitor

egWeca
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Theso
gsofthebirdscompetedwiththesou
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vtvi容许；承认；接纳
admit
doi
ghavi
gdo
ethatclause承认某事（已经）做了某事admittosthtodoi
gsth承认admitsbsthtobe承认某人某物是…
第6页共28页6
fadmitsbtoi
toadmitof…
准许某人进入（或加入）…容许人们公认…
Itisadmittedthat…
辨析allowpermitletadmit：1allow强调“默许”。r