31.He drove very fast to _______ that red car.

　　A. scatter B.overtake C.site D.sponsor

　　32.Slides are sometimes called ________ film.

　　A. whistle B.vigorous C.robot D.transparent

　　33.Professor Smith _______the most important part in his paper.

　　A. omitted B.disputed C.designed D.chased

　　34.This knife is made of steel _______ and it can be used for a long time.

　　A. mixed B.alloy C.champion D.grasp

　　35.The theory of _______ was developed by Darwin and is now understood by nearly

　　everybody in the world.

　　A. determination B.distribution C.discipline D.evolution

　　36.Mr. Green has recently been _______ to director of the president’s office.

　　A. pushed B.purchased C.promoted D.promised

　　37.We don’t think that his _______ ability has been well developed.

　　A. possible B.potential C.underneath D.vital

　　38.Our _______ talks promise a good future for our cooperation.

　　A. interior B.insurance C.initial D.invisible

　　39.The _______ can help people to see very small objects.

　　A. metropolitan B.microphone C.microscope D.microwave

　　40.Physically we feel comfortable. But _______, we suffer a lot.

　　A. psychologically B.moderately C.naturally D.precisely

       41.Mary has a _______ view of our future. But nobody believes what she said.

　　A. portable B.primary C.possession D.positive

　　42.Nobody knows his _______ for helping us.

　　A. motive B.motion C.mood D.moral

　　43.Both sides agree to establish a _______ zone between the south and north.

　　A. midst B.mild C.mention D.neutral

　　44.This is a _______ moment for our research. We should be careful.

　　A. critical B.belt C.conscience D.copper

　　45.This textbook is for the _______ students, not for the beginners.

　　A. observation B.transportation C.advanced D.transfer

　　46.When I read the newspaper, I always read the _______ first.

　　A. headlines B.headquarters C.heaven D.horizon

　　47.They _______ our house at $10,000.

　　A. count B.vanish C.weave D.assess

　　48.When he studied at college, Jack was supported by a _______.

　　A. treatment B.assistance C.scholarship D.protein

　　49.Even as _______, he made several wonderful inventions.

　　A.a stock B.a representative C.an undergraduate D.a gulf

　　50.An emergency _______ is very important in case of fire.

　　A. exit B.deposit C.discharge D.elaborate

        参考答案：31.B 32.D 33.A 34.B 35.D 36.C 37.B 38.C 39.C 40.A

　　41.D 42.A 43.D 44.A 45.C 46.A 47.D 48.C 49.C 50.A