In this experiment，scientists observed that_________

公共英语三级

单选题 In this experiment，scientists observed that__________．

A．some flies avoided the fruit without an addictive
B．some flies preferred the fruit with an addictive
C．the eggs of the flies were not damaged
D．the impact on the flies did not last long

参考答案：A进入在线模考

推断题。从文章第三段第五句“Flies that avoided the fruit which had been bitter were deemed to have learned from their expe-rience．”可知，那些果蝇通过学习能力的提升能够避开带有添加剂的水果，由此可以推断，果蝇已经有经验，看见同种水果也会避开，所以果蝇也会避开没有添加剂的同种水果，故选A。

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1 The forthcoming report says that__________．

A．long-lived flies are better at laying eggs
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2 According to Dr．Kawecki，greater brain activity__________．

A．reduces oxygen consumption
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3 We learn from the text that__________．

A．the research findings need to be tested further
B．biologists are doing similar research on other animals
C．the animal world usually follows the same universal laws
D．biologists are applying their findings to other areas

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