搜搜考试网请高手帮我分析一下以下句子(来自新概念第四册第二课)的结构好吗?
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请高手帮我分析一下以下句子(来自新概念第四册第二课)的结构好吗?
1.They would devour all our crops and kill our flocks and herds,if it were not for the protection we get from insect-eating animals.
2.He estimated that there were more than 2,250,000 in one acre,that is something like 6,000,000 spiders of different kinds on a football pitch.
3.We owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders.
1.They would devour all our crops and kill our flocks and herds,if it were not for the protection we get from insect-eating animals.
2.He estimated that there were more than 2,250,000 in one acre,that is something like 6,000,000 spiders of different kinds on a football pitch.
3.We owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders.
1（They）主语 （would devour）谓语（ all our crops）宾语 and （kill ）谓语（our flocks and herds）宾语,if （it）主语 （were not ）系动词（for the protection ）表语（we get from insect-eating animals）定语从句---（条件状语从句.）
2 He主语 estimated谓语（ that there were more than 2,250,000 in one acre）宾语从句,（that is something like 6,000,000 spiders of different kinds on a football pitch）定语从句
3 We 主语owe a lot to谓语 the birds and beasts宾语（ who eat insects )定语从句but all of them主语 put together定语 kill 谓语only a fraction of the number宾语 destroyed by spiders定语
2 He主语 estimated谓语（ that there were more than 2,250,000 in one acre）宾语从句,（that is something like 6,000,000 spiders of different kinds on a football pitch）定语从句
3 We 主语owe a lot to谓语 the birds and beasts宾语（ who eat insects )定语从句but all of them主语 put together定语 kill 谓语only a fraction of the number宾语 destroyed by spiders定语