现在完成时用since或for填空用since或for填空He has lived in Nanjing ( ) the year before last.I have known him ( ) we were children.He has been in the village ( ) last week.要给出理由.
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现在完成时用since或for填空用since或for填空He has lived in Nanjing ( ) the year before last.I have known him ( ) we were children.He has been in the village ( ) last week.要给出理由.
现在完成时用since或for填空
用since或for填空
He has lived in Nanjing ( ) the year before last.
I have known him ( ) we were children.
He has been in the village ( ) last week.
要给出理由.
现在完成时用since或for填空用since或for填空He has lived in Nanjing ( ) the year before last.I have known him ( ) we were children.He has been in the village ( ) last week.要给出理由.
用since或for填空
1.He has lived in Nanjing ( since ) the year before last.
2.I have known him ( since ) we were children.
3.He has been in the village ( since ) last week.
since既可以做连词又可以做介词,意思是【自从.】.for一般用作介词.
句1意思是：自从前年开始,他就已经住在南京了.
句2意思是：自从我们小时候,我们就认识.since we were children是句子,要用连词引导.
句3意思是：自从上周起,他就已经在这个村子里了.
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since
since
since
since+过去的具体时间
since+时间段 +ago
since+从句
for+时间段
since
since
since
看到“时间点”用since，看到“时间段”用for
上面三个句子：第一句，the year before last是一个时间点（前年），第二句，we were children，你可以理解为“我们还是小孩子的那个时间点”，第三局，last week不难看出是时间点。可是we were children感觉像...
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since
since
since
看到“时间点”用since，看到“时间段”用for
上面三个句子：第一句，the year before last是一个时间点（前年），第二句，we were children，你可以理解为“我们还是小孩子的那个时间点”，第三局，last week不难看出是时间点。
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since
since
since
since表示自从什么时候开始，for可表示因为，但是放在句中不符合句意
since+过去的具体时间
since+时间段 +ago
since+从句
for+时间段
所以全部填since
希望能帮到你！