11. Thirty years ago, scientists _____ the theory that protons and neutrons are composed of three smaller particles.
　　 A．came about
　　 B．gave away
　　 C．gave up
　　 D．came up with
　　12. Bob is doing his homework in the room, please don’t ____ him.
　　 A．curb
　　 B．disturb
　　 C．detect
　　 D．confront
　　13.If this is what his job requires, then the job isn’t really ____ having.
　　 A．worthy
　　 B．worthwhile
　　 C．worth
　　 D．worthless
　　14. I am not going there again—they ___me ＄5 for a cup of coffee!
　　 A．charged
　　 B．required
　　 C．made
　　 D．cost
　　15. The plane was ____ at 10 o’clock if it had not been for a thick fog.
　　 A．to have taken off
　　 B．to have been taken off
　　 C．to take off
　　 D．to be taking off
　　16. It took me some time to ____ what had caused this terrible accident.
　　 A．carry out
　　 B．work out
　　 C．come to
　　 D．draw up
　　17. Surely it doesn’t matter where charities get their money from: what ___ is what they do with it.
　　 A．judges
　　 B．impresses
　　 C．conveys
　　 D．counts
　　18. There is no point ___ here any longer since our hostess is getting impatient with us.
　　 A．to stay
　　 B．in staying
　　 C．to be staying
　　 D．for staying
　　19.____, we decided to go fishing last Sunday.
　　 A．The weather being fine
　　 B．The weather was fine
　　 C．As the weather being fine
　　 D．The weather was being fine 　
　　20. Almost all doctors believe that this illness can not be ____ easily.
　　 A．consulted
　　 B．recovered
　　 C．disappeared
　　 D．cured
　　多做题，勤思考，考试大编辑相信联考胜利一定属于你！

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