内容：新概念英语答案:第三册Lesson1APumaatlarge多项选择题
1Expertseventuallydecided7toinvestigate______.
a.becausetheydidnotbelievethatpumasexistedinEngland
b.becausetheywantedapumafortheLondonZoo
c.whenawomansawapumainasmallvillage
d.becausepeople'sdescriptionsofthepumahadalotincommon
2Whatparticularpieceofevidencepersuadedtheexpertsthatapumahadbeenseeninthevillage
a.Thepumahadnotattackedthewoman.
b.Thewomanhaddescribedtheanimalshehadseenas‘alargecat’.
c.Apumahadcomeveryclosetoahumanbeing.
d.Thepumahadbehavedlikeacat.
3Whatwastheproblemtheexpertswereunabletosolve
a.Howthepumahadmanagedtocoversuchgreatdistanceswithinaday.
b.Howthepumahadescapedfromazoo.
c.Whomthepumahadbelongedto.
d.Howthenumahadclimbedatree.
Structure结构
4Theaccumulatingevidencemadetheexperts______theanimalwasapuma.
a.tothink
b.thinking
c.think
d.thought
5Peoplesaid______thepuma.
a.tohaveseen
b.tosee
c.theysaw
d.theyhadseen
6______,itimmediatelyranaway.
a.Observingher
b.Onbeingobserved
c.Havingbeenobserved
d.Onherbeingobserved
7Pumasneverattackahumanbeingexcept______cornered.(line9)
a.theyare
b.being
c.thattheyare
d.whentheyare
8Theexpertswerenowfullyconvincedthattheanimal______apuma.
a.mustbe
b.shouldhavebeen
c.canonlybe
d.couldonlyhavebeenVocabulary词汇
9Thewomansaw‘alargecat’______fiveyardsawayfromher.
a.atleast
b.fouror
c.nomorethan
d.within
10Apumawillnotattackahumanbeingunlessitfeelsitselftobe______.
a.inacorner
b.inatrap
c.atanangle
d.undercover
11Abusinessmanonafishingtripisprobablysomeonewho______.
a.sellsfish
b.fishesforpleasure
c.netsfish
d.earnshislivingasafisherman
12Aprivatecollectorisamanwhocollects______.
a.forhisownbenefit
b.onhisown
c.inprivate
d.unknowntothepublic
1.Expertsfromthezoofeltobliged...
正确答案：D
incommon-simliar
2.(A)只是一个具体的特定的事列，阅读理解题的时候要把握中心大意
(B)largecat
3.(C)答案正确
做理解题时要紧扣主题、紧扣中心大意
句型结构题和词汇题是关键
4.C选项正确think
make-makesomebodydo,bemadetodo
在主动语态中不定式to的符号应该省略
被动语态中不定式to的符号必须补充完整
5.把say改成claim-Peopleclaimedtohaveseenthepuma.
D正确-清楚的道明了动作发生的先后关系
结构形式和assoonas相一致的——B答案正确
主动-Onobservingher,itimmediatelyranaway.
7.unless--if...not/exceptontheconditionthat
when=if
except可以和名词/名词性从句进行搭配，也可是when/if引导的从句形式
D正确
8.mustbe只是对客观现实的推测，时态不一致
情态动词表达推测的语意概念时，对于过去事实推测一定要用情态动词have以及过去分词形式进行搭配