41.This is an _______ that will not be easily forgotten.
    A.impact
    B.academic
    C.insult
    D.alternative
    42.Please _______ me for my rudeness. I really do not know the custom here.
    A. engage
    B.comfort
    C.execute
    D.forgive
    43.Water and air are _______ to human beings. We can not live without them.
    A.harbour
    B.function
    C.definite
    D.essential
    44.When the airplane takes off, the passengers are told to _______ their seat belts.
    A.fountain
    B.fix
    C.tight
    D.fasten
    45.This is not what we asked you to do. You can not get more pay for the _______ work.
    A.owing
    B.device
    C.tired
    D.extra
    46.My throat is _______. I cannot speak any more.
    A.sore
    B.purchase
    C.glow
    D.faint
    47.Many years ago, a lot of factories were _______ from big cities to the mountainous areas in case of war.
    A.transferred
    B.transformed
    C.transmitted
    D.transported
    48.He said in his letter that he would _______ some photographs but I couldn’t find anything in the envelope.
    A.case
    B.double
    C.enclose
    D.nonsense
    49.Many English words are _______ from Latin.
    A.displayed
    B.spread
    C.lost
    D.derived
    50.I feel _______ to say that I can not believe what he said.
    A.wanted
    B.observed
    C.obliged
    D.wandered
    答案:
    41.C 42.D 43.D 44.D 45.D
    46.A 47.A 48.C 49.D 50.D