为什么有的疑问句用why is有的用why does why后面什么时候加is什么时候加does
\u5982\u4f55\u5224\u65ad\u4e00\u822c\u7591\u95ee\u53e5\u7528do\u6216does\u6216is\uff0care\u5982\u679c\u53e5\u5b50\u4e2d\u6709am,is,are\uff0c\u53ea\u8981\u628a\u5b83\u4eec\u63d0\u5230\u53e5\u5b50\u5f00\u5934\u5c31\u53ef\u4ee5\u4e86\u3002\u5982\u679c\u6ca1\u6709am,is,are\uff0c\u662f\u7b2c\u4e00\u6216\u7b2c\u4e8c\u4eba\u79f0\u6216\u590d\u6570\u7684\u53e5\u5b50\u7528do\uff0c\u662f\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u7684\u53e5\u5b50\u7528does\u5f00\u5934\u3002
\u4f8b\u5982\uff0cshe is a student\uff0c\u8fd9\u6837\u4e3b\u8bed\u540e\u9762\u662fbe\u52a8\u8bcd\u7684\u9648\u8ff0\u53e5\uff0c\u6539\u4e3a\u4e00\u822c\u7591\u95ee\u53e5\u5c31\u53ea\u7528\u628abe\u52a8\u8bcd\u63d0\u524d\uff0c\u6539\u4e3aIs she a student\uff1f
\u5982\u679c\u662fShe has a bag\uff0c\u8fd9\u6837\u4e3b\u8bed\u540e\u9762\u4e0d\u662fbe\u52a8\u8bcd\u7684\u53e5\u5b50\uff0c\u6539\u6210\u4e00\u822c\u7591\u95ee\u53e5\u5c31\u5728\u4e3b\u8bed\u524d\u9762\u52a0\u4e0ado\u6216does\uff0c\u5982Does she have a bag\uff1f
\u6269\u5c55\u8d44\u6599
\u6700\u5e38\u7528\u7684\u52a9\u52a8\u8bcd\u6709\uff1abe\uff0c have\uff0c do\uff0c shall\uff0c will\uff0c should\uff0c would\uff0cdid\uff0c
\u52a9\u52a8\u8bcd\u534f\u52a9\u4e3b\u8981\u52a8\u8bcd\u5b8c\u6210\u4ee5\u4e0b\u4f5c\u7528\uff1a
1\u3001\u8868\u793a\u65f6\u6001\uff0c\u4f8b\u5982\uff1a
He is singing.\u4ed6\u5728\u5531\u6b4c\u3002
He has got married.\u4ed6\u5df2\u7ed3\u5a5a\u3002
2\u3001\u8868\u793a\u8bed\u6001\uff0c\u4f8b\u5982\uff1a
He was sent to England.\u4ed6\u88ab\u6d3e\u5f80\u82f1\u56fd\u3002
3\u3001\u6784\u6210\u7591\u95ee\u53e5\uff0c\u4f8b\u5982\uff1a
Do you like college life?\u4f60\u559c\u6b22\u5927\u5b66\u751f\u6d3b\u5417\uff1f
Did you study English before you came here?\u4f60\u6765\u8fd9\u513f\u4e4b\u524d\u5b66\u8fc7\u82f1\u8bed\u5417\uff1f
4\u3001\u4e0e\u5426\u5b9a\u526f\u8bcdnot\u5408\u7528\uff0c\u6784\u6210\u5426\u5b9a\u53e5\uff0c\u4f8b\u5982\uff1a
I don't like him.\u6211\u4e0d\u559c\u6b22\u4ed6\u3002
5\u3001\u52a0\u5f3a\u8bed\u6c14\uff0c\u4f8b\u5982\uff1a
Do come to the party tomorrow evening.\u660e\u5929\u665a\u4e0a\u4e00\u5b9a\u6765\u53c2\u52a0\u665a\u4f1a\u3002
He did know that.\u4ed6\u7684\u786e\u77e5\u9053\u90a3\u4ef6\u4e8b\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1--\u52a9\u52a8\u8bcd
1\u3001\u5982\u679c\u5bbe\u8bed\u662f\u540d\u8bcd\uff0c\u4e5f\u5c31\u662f\u63d0\u95ee\u67d0\u9898\u7684\u7b54\u6848\uff0c\u7528\u7cfb\u52a8\u8bcd\uff0c\u5355\u6570\u5c31\u662fis\u3002
2\u3001\u5982\u679c\u5bbe\u8bed\u662f\u5b9e\u610f\u52a8\u8bcd\uff0c\u4e5f\u5c31\u662f\u63d0\u95ee\u67d0\u52a8\u4f5c\u7684\u76ee\u7684\uff0c\u7528\u52a9\u52a8\u8bcd\uff0c\u4e09\u5355\u5f62\u5f0f\u4e3adoes\u3002
why
\u8bfb\u97f3\uff1a\u82f1 [waɪ] \u7f8e [waɪ]
\u91ca\u4e49\uff1a(\u7528\u4e8e\u95ee\u53e5)\u4e3a\u4ec0\u4e48\uff0c\u4e3a\u4f55\u3002
\u8bed\u6cd5\uff1awhy\u7684\u610f\u601d\u662f\u201c\u4e3a\u4ec0\u4e48\u201d\uff0c\u53ef\u7528\u4f5c\u7591\u95ee\u526f\u8bcd\uff0c\u4e5f\u7528\u4f5c\u5173\u7cfb\u526f\u8bcd\uff0c\u8fd8\u7528\u4f5c\u8fde\u63a5\u526f\u8bcd\uff0c\u53ef\u4ee5\u5f15\u5bfc\u540d\u8bcd\u4ece\u53e5\u3002
\u4f8b\u53e5\uff1a
Why don't you look where you're going?
\u8d70\u8def\u600e\u4e48\u4e0d\u770b\u7740\u70b9\u513f\u9053\u5462\uff1f
\u6269\u5c55\u8d44\u6599why\u7684\u8fd1\u4e49\u8bcd\uff1awherefore
wherefore
\u8bfb\u97f3\uff1a\u82f1 [ˈweəfɔː(r)] \u7f8e [ˈwerfɔːr]
\u91ca\u4e49\uff1a\u4e3a\u4ec0\u4e48\uff08\u7591\u95ee\u526f\u8bcd\uff09\uff1b\u4e3a\u6b64\uff08\u5173\u7cfb\u526f\u8bcd\uff09\u3002
\u8bed\u6cd5\uff1a\u7528\u4f5c\u5173\u7cfb\u526f\u8bcd\uff0c\u610f\u601d\u662f\u201c\u4e3a\u4ec0\u4e48\uff0c\u4e3a\u4e86\u4ec0\u4e48\u7684\u7f18\u6545\u3001\u7406\u7531\u6216\u76ee\u7684\u201d\u3002
\u4f8b\u53e5\uff1a
We are victorious, wherefore let us rejoice.
\u6211\u4eec\u80dc\u5229\u4e86\uff0c\u56e0\u6b64\u8ba9\u6211\u4eec\u5c3d\u60c5\u6b22\u4e50\u3002
句中如果含有be动词，那么就将be动词作为助动词使用，帮助否定、疑问。若句中无助动词，如can等情态动词、be动词等时，就应该借助助动词do/does/did。
比较：1. He is a student. 一般疑问句：Is he a student? 否定句：He isn't a student.
2. She lives in China. 一般疑问句：Does she live in China? 否定句：She doesn't live in China.
其实，英语句子就只是两种句型：主系表和主谓宾。
当把陈述句转换成疑问句时，主系表结构将系动词be提前，而主谓宾结构在句首添加助动词do或者does。
扩展阅读：why开头的疑问句大全 ... why引导的疑问句 ... why的三种回答方式 ... why开头的疑问句有哪些 ... why后面接什么语序 ... why疑问句的否定形式 ... why提问用什么回答 ... why的后面加什么 ... 以why开头的疑问句并回答 ...
