题目内容
6．In western countries，dogs are considered helpful and good friends of humans．分析 在西方国家，狗被认为是对人类有帮助的并且是人类的好朋友．
解答 答案：helpful．
根据所给首字母提示结合语境推测句意是"在西方国家，狗被认为是对人类有帮助的并且是人类的好朋友"，be considered+形容词（作宾语补足语）"被认为…"，由此判断设空处缺少形容词"有帮助的"用helpful，所以答案是：helpful
点评 做这类题型，首先根据所给单词首字母明确句子所要考查的单词的拼写，再结合相关语法知识对单词做出形式上的变化．
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