英语完形填空提升训练及答案

    通读下面的短文，掌握其大意。然后，从每小题的四个选择项中选出可填入相应空白处的最佳选项。

    Everyone likes things that are free, and businesses often give things for free to customers as a way of getting more people to pay attention to their products.

    Ariely, a scientist from MIT, did an experiment on what people would do when _1_ things that were free. He _2_ a group of students two kinds of chocolates: the good one for 15 cents each and the poor one for 1 cent each. The good chocolate was worth 1,00, so 15 cents was very cheap, _3_ the poor quality chocolate was worth 5 cents, so _4_ it for 1 cent wasn’t very cheap.

    Most people chose the high quality chocolate for 115 cents. That’s not a _5_. But then Ariely lowered the _6_ of both pieces of chocolate by 1 cent. If people were _7_ correctly, then they should _8_ choose the good quality chocolate. But that _9_ what happened. Most people chose the free chocolate. This doesn’t make sense in our _10_ way of understanding economic behavior (经济行为).

    What is happening here? Ariely _11_ that people want to get a good bargain, but they also want to reduce risk (风险). That is, they want to _12_ the chance of making a _13_. If you pay 14 cents for a piece of chocolate, and then you don’t _14_ like it, when you have it, you have lost 14 cents. But when something is free and you don’t like it, you haven’t lost anything. People would _15__ not to take a risk over getting a better bargain.

    ( ) 1. A. facing B. buying C. giving D. treating

    ( ) 2. A. posted B. produced C. offered D. told

    ( ) 3. A. if B. as C. for D. but

    ( ) 4. A. getting B. holding C. eating D. making

    ( ) 5. A. dream B. reason C. reply D. surprise

    ( ) 6. A. weight B. size C. price D. quality

    ( ) 7. A. working B. thinking C. planning D. looking

    ( ) 8. A. still B. once C. almost D. even

    ( ) 9. A. should be B. shouldn’t be C. is D. isn’t

    ( ) 10. A. easy B. old C. normal D. modern

    ( ) 11. A. questioned B. explained C. agreed D. added

    ( ) 12. A. find B. learn C. lower D. take

    ( ) 13. A. decision B. mistake C. promise D. warning

    ( ) 14. A. usually B. gradually C. certainly D. actually

    ( ) 15. A. start B. prefer C. manage D. afford

    答案：1.B 2.A 3.D 4.B 5.A 6.C 7.C8.B 9.D 10.C

    11.A 12.B 13.A 14.D15.D 16.D 17.A 18.C 19.C 20.B

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