56、Modern means of communication prove to be very convenient for researchers to be kept __________in‘their respective field.

　　A.known

　　B.informed

　　C.noticed

　　D.told

　　57、A camera takes light rays bounced off objects and__________them on a sheet of a film.

　　A.concentrates

　　B.mixes

　　C.combines

　　D.focuses

　　58、Are you__________ spending more money on the space program?

　　A.in favor of

　　B.by favor of

　　C.in favor to

　　D.out of favor

　　59、Professor Wang, __________ for his informative lectures, was warmly received by his students.

　　A.Knowing

　　B.Known

　　C.to be known

　　D.having known

　　60、The goals__________ he had fought ail his life no longer seemed important to him.

　　A.after which

　　B.with which

　　C.for which

　　D.at which

　　61、In all, 6 000 companies are __________ in producing the parts that are needed for these aircraft.

　　A.eoncemed

　　B.recommended.

　　C.involved

　　D.offended

　　62、He looks as if he__________ nothing about the news.

　　A.Would kno

　　B.would have known

　　C.knew

　　D.should know

　　63、__________ the interference from the local residents, the delegation would have caught the train bound for Edinburgh.

　　A.Due to

　　B.Except for

　　C.In caffe of

　　D.But for

　　64、The government is trying to do something to__________ better understanding between the two countfies.

　　A.raise

　　B.promote

　　C.heighten

　　D.increase

　　65、None of US expected the chairman to__________ at the party.We thought he was still in hospital.

　　A.turn in

　　B.turn over

　　C.turn up

　　D.turn down

　　答案：BDABC

　　66、That voung man still denies__________the fire behind the store.

　　A.start

　　B.to start

　　C.having started

　　D.to have started

　　67、__________ under a microscope，a fresh snowflake has a delicate six-pointed shape.

　　A.Seen

　　B.Seeing

　　C.To see

　　D.To be seen

　　68、A liar cannot make himseIf__________.

　　A.believe

　　B.to believe

　　C.believing

　　D.believed

　　69、Not until Columbus discovered America__________ to Europe.

　　A.bananas were brought

　　B.are bananas brought

　　C.bananas brough!

　　D.were bananas brought

　　70、You don't have to be in such a hurry.1 would rather you__________ on business first.

　　A.would go

　　B.will go

　　C.went

　　D.have gone

　　71、It is important that the hotel reeeptionist__________that guests are registered correctly

　　A.has made sure

　　B.made sure

　　C.must make sure

　　D.make sure

　　72、Final grades should be__________plenty of good evidence.

　　A.based on

　　B.basis on

　　C.adjusted to

　　D.on foundation of

　　73、The lady's appointment would be terminated as of September 29，unless__________ to that time she requested a hearing.

　　A.superior

　　B.inferior

　　C.prior

　　D.junior

　　74、It's a pity th'at Professor Smith has failed to make his idea__________ in the classroom.

　　A.understanding

　　B.to be understood

　　C.understood

　　D.to understand

　　75、Tired __________ he was，he insisted on going ahead with the plan at once.

　　A.even if

　　B.Hthough

　　C.likel

　　D.as

　　答案：CCDBCCADDC