题目内容
3．There are different plants andanimals（animal）on Earth．分析 --地球上有不同的植物和动物．
解答 答案：animals 考查单词填空．根据题干：There are different plants and（animal）on Earth．地球上有不同的植物和动物．前面plants是复数形式，and是并列关系，所以animal也要用复数形式animals．故答案是animals．
点评 考查单词填空．准确的翻译句意及分析句子结构是关键，然后再用合适的形式完成句子．
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