题目内容
6.He turned to his mother for help when he came across the difficulty.分析 他遇到困难时向母亲求助.
解答 turned 考查谓语动词.根据句意"他遇到困难时"可知是向母亲"寻求帮助",turn to sb.for help意为"向某人求助",根据主语He可知此处是谓语动词,结合从句中的谓语came,所以是一般过去时,故填turned.
点评 本题考查谓语动词,解题时首先要根据语境和逻辑来推断出空所需要的词性,或者是根据句子结构的需要来推断词性,然后根据句意和所给的首字母写出正确答案.

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