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