关于2道简单的英语题的疑惑1.If you don't know what

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1. what it means 是动词know的宾语从句.
宾语从句的重点是：时态一致,陈述句语序.而What does it mean是疑问句语序.
2. There is no need to do sth没有必要做某事.There be...表示“有”,有必要应用there be .如果用It seems,就应改为：
It seems that there is no need to help the lazy people.
祝你进步!======以下答案可供参考======
供参考答案1:
1.在宾语从句中腰将从句的疑问句语序改成陈述句
2. There is no need 表示没有必要，加seems 是似乎没必要
It seems that。。。
供参考答案2:
1. what it means 在这里是做know的宾语从句。在宾语从句中要用陈述句语序。而What does it mean?是疑问句语序。
2. There is no need to do sth.表示做某事是没有必要的。There be...表示“有”，有必要当然要用there be