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On the earth, all living things need others. Each kind of life eats 76________
one another kind of life in order to live, and together they form 77________
a food chain. Some food chains are simple, while others don¡¯t. But 78________
all food chains begin with the sun, and one of the links disappears, all 79________
food chains become break up. It is known that all lives need to live on 80________
the sunlight. But only animals can use sunlight directly. Plants are 81________
as ¡°factors¡±. They make food from sunlight, water and other things. 82________
Plants feed food to other things. Animals can¡¯t use the sun¡¯s energy 83________
only after it has changed by the plants. Some animals feed directly 84________
by plants, while others eat smaller animals. They eat plants indirectly. 85________
76. ÕýÈ· 77. È¥µôone
78. don¡¯t¸ÄΪaren¡¯t 79.andºó¼Óif/when
80. break¸ÄΪbroken 81. animals¸ÄΪplants
82. È¥µôas 83. can¡¯t¸ÄΪcan
84. hasºó¼Óbeen 85. by¸ÄΪon
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