41.Glass may _______ at high temperature.

A.profit

B.pronounce

C.sting

D.melt

42.Silver _______ electricity far better than other materials.

A.equips

B.strikes

C.cracks

D.conducts

43.Everyone is encouraged to _______ food or clothing for those who suffered a great deal in theflood.

A.attribute

B.distribute

C.contribute

D.drift

44.White teeth are a sharp _______ to black skin.

A.content

B.contract

C.contrast

D.contain

45.Tom is _______ about photography.He spends nearly all his money on it.

A.justice

B.innocent

C.fierce

D.crazy

46.We need help from the other countries.But we do not_______ on others for support.

A.engage

B.lean

C.strip

D.multiply

47.We will _______ the plan because of the cost.

A.council

B.journal

C.damp

D.oppose

48.Our train is _______ at Shanghai at seven o’clock this evening.

A.due

B.crystal

C.cushion

D.cooperation

49.Her voice was _______ in the noise.

A.filled

B.entertained

C.enormous

D.drowned

50.He is very _______ in his family and never does anything against his wife.

A.hence

B.possess

C.outer

D.humble

答案：46.B 47.D 48.A 49.D 50.D

答案：41.D 42.D 43.C 44.C 45.D