英语句子开头的动词，什么时候用不定式，什么时候用动名词，什么时候用动词原形 英语句子动词开头,什么时候用原形,什么时候用ING,什么时候...
\u5982\u679c\u5728\u82f1\u8bed\u4e2d\uff0c\u53e5\u5b50\u7684\u5f00\u5934\u662f\u52a8\u8bcd\uff0c\u90a3\u4e48\u8fd9\u4e2a\u52a8\u8bcd\u4ec0\u4e48\u65f6\u5019\u7528\u539f\u578b\uff0c\u4ec0\u4e48\u65f6\u5019\u7528\u52a8\u540d\u8bcd\uff0c\u4ec0\u4e48\u65f6\u5019\u7528\u4e0d\u5b9a\u5f0f\uff1f\u4e50\u610f\u89e3\u7b54\uff1a
\u5f53\u8981\u7528\u52a8\u8bcd\u76f8\u5173\u7684\u52a8\u4f5c\u4f5c\u4e3b\u8bed\u65f6,\u52a8\u8bcd\u8981\u7528+ing\u5f62\u5f0f.
Smoking is bad for your health.
\u7528\u52a8\u8bcd\u539f\u5f62\u7684\u51e0\u60c5\u51b5
1.\u52a0\u52a9\u52a8\u8bcddo, does\u6216did \u7684\u80af\u5b9a\u53e5\u53d8\u6210\u5426\u5b9a\u53e5\u65f6\uff0c\u5176\u540e\u9762\u7684\u52a8\u8bcd\u8981\u7528\u52a8\u8bcd\u539f\u5f62\uff1b
He didn\u2019t work hard at English last term.
2.\u60c5\u6001\u52a8\u8bcd\u540e\u9762\u8981\u7528\u52a8\u8bcd\u539f\u5f62\uff1b
Must I be at home tonight?
3.be going to, will, shall \u7b49\u6784\u6210\u7684\u5c06\u6765\u65f6\u6001\uff0c\u5176\u540e\u9762\u7684\u52a8\u8bcd\u8981\u7528\u52a8\u8bcd\u539f\u5f62\uff1b
There will be on a new interesting film at the cinema.
4.\u7948\u4f7f\u53e5\u8981\u7528\u52a8\u8bcd\u539f\u5f62\uff1bBe careful, Lin tao!
5.let\u5f00\u5934\u7684\u7948\u4f7f\u53e5\uff0c\u5176\u540e\u9762\u7684\u52a8\u8bcd\u8981\u7528\u52a8\u8bcd\u539f\u5f62\uff1b
Let\u2019s have a look at the pictures.
6.had better \u540e\u9762\u8981\u7528\u52a8\u8bcd\u539f\u5f62\uff1b
you\u2019d better put on more clothes. It\u2019s very cold outside.
7.why not \u4e4b\u540e\u8981\u7528\u52a8\u8bcd\u539f\u5f62\uff1b
Why not come a little earlier?= Why don\u2019t you come a little earlier?
8.\u52a8\u8bcd\u4e0d\u5b9a\u5f0fto\u4e4b\u540e\u8981\u7528\u52a8\u8bcd\u539f\u5f62\uff1b
Please give me something nice to eat.
9.feel, hear, see, watch \u7b49\u611f\u5b98\u52a8\u8bcd\u4e4b\u540e\u8981\u7528\u52a8\u8bcd\u539f\u5f62\u3002\u5982\u679c\u8868\u793a\u8fd9\u4e00\u52a8\u4f5c\u6b63\u5728\u8fdb\u884c\uff0c\u5c31\u7528\u73b0\u5728\u5206\u8bcd\u3002
Sometimes we can hear a girl sing in the room.
I feel my left leg hurting badly.
\u8868\u793a\u76ee\u7684\u65f6\uff0c\u4e00\u822c\u7528\u4e0d\u5b9a\u5f0f to do\u5f00\u5934\u3002
\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01
\u539f\u5219\u4e0a\u8bb2\u82f1\u8bed\u53e5\u5b50\u662f\u4e0d\u80fd\u7528\u52a8\u8bcd\u539f\u5f62\u5f00\u5934\u7684\uff0c\u4f46\u662f\u7948\u4f7f\u53e5\u4e2d\u5e38\u5e38\u7701\u7565\u4e86Please,\u6216\u5c06please\u653e\u5728\u53e5\u672b\u3002\u4f8b\u5982please open the door\u6211\u4eec\u5f80\u5f80\u8bf4\u6210 open the door please \uff01\u6216\u76f4\u63a5\u7528 Open the door\u3002\u56e0\u6b64\u53ea\u6709\u5728\u7948\u4f7f\u53e5\u4e2d\u7528\u52a8\u8bcd\u539f\u5f62\u5f00\u5934\u3002\u4f60\u6240\u8bf4\u7684\u52a8\u8bcdING\u5f62\u5f0f\u5b9e\u9645\u662f\u52a8\u540d\u8bcd\uff0c\u5f53\u52a8\u8bcd\u52a0\u4e0aING\u540e\u53ef\u4ee5\u8bf4\u662f\u52a8\u540d\u8bcd\u6216\u73b0\u5728\u5206\u8bcd\u800c\u73b0\u5728\u8bcd\u662f\u4e0d\u53ef\u4ee5\u505a\u4e3b\u8bed\u7684\uff0c\u52a8\u540d\u8bcd\u548c\u4e0d\u5b9a\u5f0f\u90fd\u5c5e\u4e8e\u975e\u8c13\u8bed\u52a8\u8bcd\u3002\u82e5\u6307\u4e00\u4e2a\u62bd\u8c61\u52a8\u4f5c\u65f6\u7528ING\u800c\u6307\u67d0\u4e00\u6b21\u5177\u4f53\u7684\u52a8\u4f5c\u65f6\u5019\u7528\u4e0d\u5b9a\u5f0f\u4f8b\u5982\uff1a
Riding bike can make a man smart.\u9a91\u5355\u8f66\u80fd\u662f\u4e00\u4e2a\u4eba\u654f\u6377\u3002To complete the porgram deeds much effort\u5b8c\u6210\u8fd9\u4e2a\u9879\u76ee\u9700\u8981\u5f88\u5927\u7684\u52aa\u529b\u3002\u5728\u5c31\u662f\u52a8\u540d\u8bcd\u8868\u793a\u4e3b\u52a8\u610f\u4e49\u800c\u4e0d\u5b9a\u5f0f\u5f80\u5f80\u8868\u76ee\u7684\u3002
当你仅仅是想省略开头的主语时，那么开头的动词就要用动名词，原因很简单；
当你想表示祈使句语气时（比如命令、斥责、哀求等），就用原形。
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绛旓細To do鏀惧湪鍙ュ瓙涓槸鈥滀负浜...鈥濈殑鎰忔濓紝濡:To get to the zoo,you must cross the roadDoing鏄敤浣滃姩鍚嶈瘝锛屽锛欴oing homework is important.Do鐢ㄥ湪绁堜娇鍙ヤ腑锛屽锛歄pen the door,please.
