41.Professor Smith seldom _______ the class on time.

　　A.dismisses B.nervous C.misleads D.regrets

　　42.Mr. Wang _______ his wife and children when he went to the United States.

　　A.prescribed B.delayed C.decreased D.deserted

　　43.He _______ a lot of time in trying to develop the education system in this area.

　　A. involved B.investigated C.invested D.interfered

　　44.They spent many years _______ for oil in this small island.

　　A.exploring B.exploding C.exposing D.exploiting

　　45.We can’t _______ the fact that we are still a developing country.

　　A. ignore B.neglect C.imagine D.impress

　　46.Can you _______ the man who robbed you of your watch?

　　A. illustrate B.exhibit C.damage D.identify

　　47.Many children in developing countries can not go to school,because of _______

　　A.property B.sword C.trace D.poverty

　　48.What is your _______ to his coming?

　　A.altitude B.attitude C.attribute D.aspect

　　49.He _______ into the water and rescued the little girl.

　　A. inserted B.sloped C.heaped D.dived

　　50.You may _______ of the extra books in our department library.

　　A.deposit B.enclose C.fade D.dispose

　　答案：

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