完形填空。 There are robots all around us. Some do very1 jobs like flying a

题文

完形填空。     There are robots all around us. Some do very    1    jobs like flying airplanes and driving subway trains. And some do simple jobs.      When an automatic washing machine     2   , water goes in. The machine waits until the water is hot    3    washing the clothes. It does this by "feedback" (反馈). Information about what's    4    is "fed back" into the robot to tell it    5    next.      Our eyes, ears and other ns (感官) are    6    feedback. They tell us    7    round us. So robots arelike people in    8    ways. They work and they have feedback.      But    9    robots look like people. Many are    10    ways. Robots control (控制) the temperature of ourhous, our cookers, our hot water systems. We can    11     the controls to the temperature we want. The robot does     12   . Its feedback usually come    13    thermostat (自动调温器).      Our kind of thermostat is a strip of metal (金属条), which bends (弯曲) when it gets hot. At the righttemperature, it bends just enough    14    a switch. This turns off the heat. As the air around it gets     15   , the metal gets straight, and this turns the heat on again.

(     )1. A. easy            (     )2. A. is switched on  (     )3. A. after          (     )4. A. happening       (     )5. A. how to do       (     )6. A. we              (     )7. A. what will happen(     )8. A. some            (     )9. A. many            (     )10. A. hide           (     )11. A. t           (     )12. A. something      (     )13. A. up           (     )14. A. to work       (     )15. A. cold          

题型：未知 难度：其他题型

答案

1-5 DABAB  6-10 BBCCC  11-15 ADCAC

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