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语法,谚语

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老师您好:请问:1.A black sheep.(谚语)是什么意思? 2.There is a pen in the pencilcase.对a pen 提问应是用what is 还是 What's there ? 为什么?谢谢!!!
语法,谚语
解题思路: 如下
解题过程:
1.A black sheep.(谚语) 意思是:害群之马,败家子
2.There is a pen in the pencilcase.对a pen 提问应用what is .
what's in the pencilcase?
理由如下:
There be句型的特殊疑问句形式有以下三种变化:
① 对主语提问:当主语是人时,用"Who's+介词短语?";当主语是物时,用"What's + 介词短语?"。注意:无论原句的主语是单数还是复数,对之提问时一般都用be的单数形式(回答时却要根据实际情况来决定)。如:
There are many books on the desk . →What's on the desk ?
There is a little girl in the room.→Who is in the room?
② 对地点状语提问:提问地点当然用"Where is / are+主语?"啦!例如:
There is a computer on the desk. → Where is the computer?
There are four children on the playground. →Where are the four children?
③ 对数量提问:一般有两种句型结构:
How many+复数名词+are there+介词短语?
How much+不可数名词+is there+介词短语?
最终答案:略