1．解析：　主旨大意题。通读全文可知，本文主要就“动物如何保护自己的领地”进行了介绍。

　　答案：　C

　　2．解析：　细节理解题。根据第一段第三句“Most animals rely on various threats，either through sounds or smells.”可知，答案选B。

　　答案：　B

　　3．解析：　词义猜测题。根据第二段第二、三句可知，当某种动物发现有其他的动物侵入自己的领地时，会通过视觉上的展示来恐吓对方。它们会竖起羽毛或皮毛，以使自己看起来更大、更强壮。因此exaggerate应为“扩大，增大”之意。

　　答案：　A

　　4．解析：　细节理解题。根据最后一段第一句“Actual fighting usually only happens in overcrowded conditions，when resources are not enough.”可知，当过度拥挤导致生存资源匮乏时，就有可能发生打斗。

　　答案：　D

　　5．解析：　细节理解题。根据最后一段倒数第二句“Under most natural conditions，territoriality is an effective way of maintaining a healthy population.”可知，答案选C。

　　答案：　CEvery day is a gift，and if you look forward to spending each day with happiness，wake up every morning with a positive attitude and enjoy a beautiful day!

　　Set up a daily plan for yourself and ensure that you reserve enough time for your homework.Also，don’t forget to spare some time for play！Stop being lazy and start participating in your life instead of just watching it pass by.Try to do something fun and constructive every day.Read a book，write something interesting in your diary，try a new hobby，spend time with your friends，or just watch your favorite show on television，and you will see how every moment of your day untelevision，and you will see how every moment of your day unfolds.You’ll achieve better results，and ultimately greater success.

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