Cats are animals of habit. They like to go to sleep 1._____ 本文来自通途教育

about same time every day and for a certain length of time. They 2._____

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seem to have natural clock inside them that tells them 3._____ copyright www.pn

when sleeping. Besides their regular sleep, cats take naps(打盹). 4._____

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Some scientists think that people should also take cat nap. The 5._____ www.pn

habit would do good for people's health. 6._____ 内容来自通途教育

Cat naps helped build up energy in the body. 7._____

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Since cats have moods(情绪) like these of people, 8._____ 内容来自通途教育

scientists believe that people can improve their moods with 9._____ copyright www.pn

cat-napping. People might be more happier and more active.10.____ 本文来自通途教育

参考答案：1. right 2. same-the same 3.have-have a 4. sleeping-to sleep 5. nap-naps 6. for –to 7. helped-help 8. these-those 9. with-by 10. 去掉more www.pn