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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

答案:

41.D 42.A 43.D 44.A 45.C

46.A 47.D 48.C 49.C 50.A