1.Tom is _______ about photography. He spends nearly all his money on it.
A. justice
B.innocent
C.fierce
D.crazy

2.Glass may _______ at high temperature.
A. profit 
B.pronounce 
C.sting 
D.melt

3.Silver _______ electricity far better than other materials.
A. equips 
B.strikes 
C.cracks 
D.conducts

4.Everyone is encouraged to _______ food or clothing for those who suffered a great deal in the flood.
A. attribute 
B.distribute 
C.contribute 
D.drift

5.White teeth are a sharp _______ to black skin.
A. content 
B.contract 
C.contrast 
D.contain

【答案】1.D  2.D  3.D  4.C  5.C