请教：一个句子中什么情况下开头单词是动名词，什么有时候是动词不定式，什么时候又是动词原形？
\u521d\u4e2d\u54ea\u4e9b\u8bcd\u8bed\u540e\u9762\u8ddf\u52a8\u540d\u8bcd\u54ea\u4e9b\u8ddf\u52a8\u8bcd\u539f\u5f62\u54ea\u4e9b\u8ddf\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\u539f\u5f62do\uff1a1. \u4e00\u822c\u73b0\u5728\u65f6\uff0c\u975e\u4e09\u5355 don\u2019t / doesn\u2019t /do /does + do \u201c\u4e3b\u5c06\u4ece\u73b0\u201d
2. \u60c5\u6001\u52a8\u8bcd can /may/ must/ will/ would/ should /might/ have to / be able to + do
3. \u7948\u4f7f\u53e5\uff0cV\u539f\u5f62\u5f00\u5934
4. \u975e\u8c13\u8bedV Why not do? Why don\u2019t you do? Shall we do? Let\u2019s do
had better(not) do have sb. do let sb. do make sb. do \uff08\u88ab\u52a8\u5e26 to\uff09
\u611f\u5b98\u52a8\u8bcd see / hear/ /watch / notice/ find / feel sb. do (\u8fc7\u7a0b)
would rather do than do prefer to do rather than do
doing\uff1a 1.be + doing \uff08\u8fdb\u884c\u65f6\uff09 be always doing (\u611f\u60c5\u8272\u5f69)
2.\u52a8\u8bcd\u4f5c\u4e3b\u8bed\uff0c\u5f00\u5934\uff0c\u7528doing
3. \u4ecb\u8bcd in/ at/ for/ of / by / about/ with/ without / after/ before /including + doing
Be / get used to doing (\u4e60\u60ef\u4e8e\u2026) look forward to doing\uff08\u671f\u5f85\uff09
prefer doing to doing
4. speaking / listening skill writing paper swimming club singing class
5.There be \u2026doing (\u4e3b\u52a8) There be\u2026+p.p.(\u88ab\u52a8)
6. have trouble / problem / fun /\u2026time doing
7. \u611f\u5b98\u52a8\u8bcd see / hear/ notice/ find / feel sb. doing (\u6b63\u5728\u505a)
8.put off doing practice doing consider doing keep doing keep sb. doing
finish doing enjoy doing mind doing allow doing give up doing
be busy doing spend\u2026(in) doing end up doing stop doing(\u505c\u6b62\u505a)
try doing\uff08\u8bd5\u7740\u505a\uff09forget doing\uff08\u5fd8\u4e86\u505a\u8fc7\u67d0\u4e8b\uff09 remember doing\uff08\u8bb0\u5f97\u505a\u8fc7\u67d0\u4e8b\uff09
p.p. \u73b0\u5728\u5b8c\u6210\u65f6 have/ has +p.p. (since +\u8fc7\u53bb\u65f6\u95f4\u70b9 / in the last few years / over the years / so far / just / ever / never/ already/ yet/ before)
\u8fc7\u53bb\u5b8c\u6210\u65f6 had + p.p.
be+ p.p. \u88ab\u52a8\u8bed\u6001 get / have sth. + p.p. (\u8ba9\u522b\u4eba\u505a\u67d0\u4e8b)
a boy called / named\u2026 (\u88ab\u52a8\u610f\u4e49\uff0c\u8fc7\u53bb\u5206\u8bcd\u4f5c\u5b9a\u8bed) an organization set up
a book written by\u2026=A book that was written by\u2026
to do want to do would like to do plan to do decide to do wish to do attempt to do
hope to do used to do offer to do mean to do need to do seem to do learn to do fail to do(\u6ca1\u80fd\u2026) pretend to do agree to do can(not) afford to do get ready to do be supposed to do be afraid to do in order (not) to do ask sb.to do tell sb.to do order sb.to do allow sb.to do(sb. be allowed to do) help sb.(to)do encourage sb.to do lead sb.to do prefer to do too\u2026to do \u5f62+enough\u6216enough+\u540d to do
It\u2019s time to do \u7591\u95ee\u8bcd+to do be sure to do stop to do(\u505c\u4e0b\u6765\u53bb\u505a)
forget to do\uff08\u5fd8\u8bb0\u53bb\u505a\uff09remember to do\uff08\u8bb0\u5f97\u53bb\u505a\uff09 try to do \uff08\u8bd5\u56fe\u3001\u5c3d\u529b\u53bb\u505a\uff09
I\u2019m sorry / happy\u2026 to do It\u2019s+\u540d/ \u5f62+to do I find/ think/ feel/ make it+\u5f62 + to do
It takes sb. some time to do be willing to do be used to do(\u88ab\u7528\u6765) happen to do\uff08\u78b0\u5de7\uff09
\u7528\u6cd5\u76f8\u540clike to do /doing begin to do /doing start to do /doing continue to do /doing
\u52a8\u8bcd\u539f\u5f62\u6253\u5934\u65f6\uff0c\u4e00\u822c\u90fd\u662f\u7948\u4f7f\u53e5\uff0c\u4f8b Open the window please,
\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\u6253\u5934\u65f6\uff0c\u4e00\u822c\u5e26\u6709\u547d\u4ee4\u6027\u548c\u76ee\u7684\u6027\u3002 To remember his telephone number, I can't
go to sleep for a night.
\u52a8\u540d\u8bcd\u505a\u4e3b\u8bed\u7684\u7528\u6cd5
\u52a8\u540d\u8bcd\u505a\u4e3b\u8bed\u5f80\u5f80\u8868\u793a\u7ecf\u5e38\u6027,\u4e60\u60ef\u6027\u7684\u52a8\u4f5c, \u5728\u53e3\u8bed\u4e2d\u4e5f\u53ef\u4ee5\u8868\u793a\u5177\u4f53\u7684\u52a8\u4f5c.\u5982:
Seeing is believing.
Helping her is my duty.
\u52a8\u540d\u8bcd
Talking mends no holes.
\u7a7a\u8c08\u65e0\u6d4e\u4e8e\u4e8b.
Working with you is a pleasure.
\u548c\u4f60\u4e00\u8d77\u5de5\u4f5c\u662f\u4e00\u79cd\u4e50\u8da3.
\u52a8\u540d\u8bcd\u505a\u4e3b\u8bed\u548c\u4e0d\u5b9a\u5f0f\u505a\u4e3b\u8bed\u4e00\u6837,\u4e5f\u53ef\u4ee5\u7528it\u4f5c\u5f62\u5f0f\u4e3b\u8bed.\u5982:
It's rather tiring walking around in a city.
\u4e0d\u5b9a\u5f0f\u505a\u4e3b\u8bed\u5f80\u5f80\u8868\u793a\u5177\u4f53\u7684\u7279\u522b\u662f\u5c06\u6765\u7684\u52a8\u4f5c.\u5982:
It's no use crying over spilt milk.
\u8986\u6c34\u96be\u6536.
\u8fc7\u53bb\u5206\u8bcd\u505a\u53e5\u9996\u72b6\u8bed\uff0c\u5b83\u4e0e\u73b0\u5728\u5206\u8bcd\u3001\u4e0d\u5b9a\u5f0f\u7684\u533a\u522b\u5982\u4e0b\uff1a
\u73b0\u5728\u5206\u8bcd\u4e0e\u8fc7\u53bb\u5206\u8bcd\u4f5c\u72b6\u8bed\u7684\u533a\u522b\u3002
\u73b0\u5728\u5206\u8bcd\u505a\u72b6\u8bed\u4e0e\u8fc7\u53bb\u5206\u8bcd\u505a\u72b6\u8bed\u7684\u6700\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u4e24\u8005\u4e0e\u6240\u4fee\u9970\u7684\u4e3b\u8bed\u7684\u4e3b\u52a8\u4e0e\u88ab\u52a8\u5173\u7cfb\u7684\u533a\u522b\u3002
1\uff09\u73b0\u5728\u5206\u8bcd\u4f5c\u72b6\u8bed\u65f6\uff0c\u73b0\u5728\u5206\u8bcd\u7684\u52a8\u4f5c\u5c31\u662f\u53e5\u5b50\u4e3b\u8bed\u7684\u52a8\u4f5c\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u662f\u4e3b\u52a8\u5173\u7cfb\u3002
He went out shutting the door behind him.
\u4ed6\u51fa\u53bb\u540e\u5c06\u95e8\u968f\u624b\u5173\u4e0a\u3002
Not knowing what to do, he went to his parents for help.
\u7531\u4e8e\u4e0d\u77e5\u5982\u4f55\u529e\u662f\u597d\uff0c\u4ed6\u53bb\u627e\u7236\u6bcd\u5e2e\u5fd9\u3002
2\uff09\u8fc7\u53bb\u5206\u8bcd\u4f5c\u72b6\u8bed\u65f6\uff0c\u8fc7\u53bb\u5206\u8bcd\u8868\u793a\u7684\u52a8\u4f5c\u662f\u53e5\u5b50\u4e3b\u8bed\u627f\u53d7\u7684\u52a8\u4f5c\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u662f\u88ab\u52a8\u5173\u7cfb\u3002
Given more attention, the trees could have grown better.
\u5982\u679c\u5bf9\u8fd9\u4e9b\u6811\u591a\u5173\u5fc3\u4e00\u4e9b\uff0c\u5b83\u4eec\u672c\u6765\u4f1a\u957f\u5f97\u66f4\u597d\u3002
Faced with difficulties, we must try to overcome them.
\u5728\u9047\u5230\u56f0\u96be\u7684\u65f6\u5019\uff0c\u6211\u4eec\u5fc5\u987b\u8bbe\u6cd5\u514b\u670d\u3002
\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\u548c\u5206\u8bcd\u4f5c\u72b6\u8bed\u7684\u533a\u522b
1)\u5206\u8bcd\u4f5c\u72b6\u8bed\u4e00\u822c\u8868\u793a\u4f34\u968f\uff0c\u800c\u4e0d\u5b9a\u5f0f\u5e38\u5e38\u8868\u793a\u76ee\u7684\u3002
They stood by the roadside talking about the plan\uff0e\u4ed6\u4eec\u7ad9\u5728\u8def\u8fb9\u8c08\u8bba\u7740\u8fd9\u4e2a\u8ba1\u5212\u3002(\u4f34\u968f)
They stood by the roadside to talk about the plan\uff0e\u4ed6\u4eec\u7ad9\u5728\u8def\u8fb9\u4e3a\u7684\u662f\u8c08\u8bba\u8fd9\u4e2a\u8ba1\u5212\u3002(\u76ee\u7684)
2)\u5206\u8bcd\u4f5c\u72b6\u8bed\u653e\u5728\u53e5\u5b50\u5f00\u5934\uff0c\u9664\u8868\u793a\u539f\u56e0\u4e4b\u5916\u6709\u65f6\u8868\u793a\u65f6\u95f4\u6216\u6761\u4ef6\u3002\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\u4f5c\u72b6\u8bed\u65f6\uff0c\u9664\u4e86\u8868\u793a\u76ee\u7684\u4ee5\u5916\uff0c\u8fd8\u8868\u793a\u7ed3\u679c\u6216\u539f\u56e0\u3002
Reading attentively\uff0che forgot the time for lunch\uff0e\u7531\u4e8e\u5728\u4e13\u5fc3\u8bfb\u4e66\uff0c\u4ed6\u5fd8\u4e86\u5403\u5348\u996d\u7684\u65f6\u95f4\u3002(\u539f\u56e0)
Reading carefully\uff0che found something he had not known before\uff0e\u4ed6\u4ed4\u7ec6\u8bfb\u4e66\u65f6\uff0c\u53d1\u73b0\u4e86\u4e00\u4e9b\u4ece\u524d\u4e0d\u77e5\u9053\u7684\u4e1c\u897f\u3002(\u65f6\u95f4)
Reading carefully\uff0cyou'll learn something new\uff0e\u53ea\u8981\u4f60\u4ed4\u7ec6\u9605\u8bfb\uff0c\u4f60\u4f1a\u5b66\u5230\u4e00\u4e9b\u65b0\u7684\u4e1c\u897f\u3002(\u6761\u4ef6)
His family was too poor to support him\uff0e\u4ed6\u7684\u5bb6\u5ead\u592a\u7a77\uff0c\u4e0d\u80fd\u7ef4\u6301\u4ed6\u7684\u751f\u6d3b\u3002(\u7ed3\u679c)
The boy is not tall enough to reach the book shelf\uff0e\u8fd9\u7537\u5b69\u4e2a\u5b50\u4e0d\u591f\u9ad8\uff0c\u624b\u4f38\u4e0d\u5230\u4e66\u67b6\u3002(\u7ed3\u679c)
We are glad to hear the news\uff0e\u6211\u4eec\u5f88\u9ad8\u5174\u542c\u5230\u8fd9\u6d88\u606f\u3002(\u539f\u56e0)
\uff083\uff09\u4e0b\u9762\u4e00\u4e9b\u53e5\u578b\u662f\u4e0d\u5b9a\u5f0f\u505a\u72b6\u8bed\u65f6\u5019\u5e94\u8be5\u6ce8\u610f\u7684\uff1a
a\uff1anot/never too\u2026to, too\u2026not to , but/only too\u2026 to, too ready/eager/apt/inclined to \u8868\u793a\u80af\u5b9a\u610f\u4e49
b\uff1a\u505a\u7ed3\u679c\u72b6\u8bed\u7684\u4e0d\u5b9a\u5f0f\u53ea\u80fd\u51fa\u73b0\u5728\u53e5\u5b50\u7684\u672b\u5c3e\uff0c\u5e38\u89c1\u7684\u4e0d\u5b9a\u5f0f\u52a8\u8bcd\u6709\uff1afind, hear, see, be told, form, give, make, produce \u7b49\u3002
c\uff1a\u4e0d\u5b9a\u5f0f\u505a\u72b6\u8bed\u65f6\uff0c\u5176\u903b\u8f91\u4e3b\u8bed\u4e00\u822c\u4e3a\u53e5\u5b50\u7684\u4e3b\u8bed\uff0c\u5426\u5219\u7528for\u5f15\u5bfc\u4e3b\u8bed\u3002
\u52a8\u540d\u8bcd\u8f83\u4e3a\u4e3b\u52a8\uff0c\u8fc7\u53bb\u8f83\u4e3a\u88ab\u52a8\u3002\u3002
To be a teacher is not that easy.
要当老师可不是那么容易的。
Being a teacher is not that easy.
当个老师不是那么容易的。
当动词做主语时,既可用动名词，也可用动词不定式放在句首,祈使句中动词原形放在开头.
绛旓細鏉ュ懆鍏堢敓銇亰瀹呫伀琛屻亸鏃躲仾銈撱仩銇戙仼銆傛垜璁や负銇倱銇犮亼銇╂槸銇伄銇с仚锛堛仾銇仩锛夈亼銈屻仼鐨勭缉绾﹀舰銆傚悕璇嶃仾锛嬨伄銇с仚琛ㄧず鐩稿叧锛屽叧鑱斻備綘鐪嬧溿伄銇犫濈殑鐢ㄦ硶銆傗...銇戙倢銇┾濊〃鐜板紩瀛愶紝寮鍦虹櫧銆傝繖鏂囧悗鎺ヤ富鏂囥備緥濡傦紱鏉ュ懆鍏堢敓銇亰瀹呫伀琛屻亸鏃躲仾銈撱仩銇戙仼銆併仾銇亱涔般仯銇︽寔銇ｃ仸琛屻亸锛熸潵鍛ㄥ厛鐢熴伄銇婂畢銇...
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绛旓細in what many observers are calling the most difficult economic climate in decades.in 鏄釜浠嬭瘝 杩欓噷琛ㄧず鍦...鏂归潰锛鎯呭喌涓銆 what many observers are calling the most difficult economic climate in decades 鏄 what 寮曞鐨勫悕璇嶆т粠鍙 鍋歩n鐨勫璇 銆傝瘧鏂囷細 鍓嶅嚑涓湀閲岋紝澶鍜屽喅绛栬呬滑涓鐩撮兘...
绛旓細鍏蜂綋鎯呭喌瑕佸叿浣撳垎鏋愩傛瘮濡傦細Of all the boy students he is the tallest in his class. 鍦ㄧ彮涓婏紝浠栨槸鎵鏈夌敺鐢熶腑鏈楂樼殑銆傦紙= He is the tallest of all the boy students in his class. 锛塐f course, I know it. 鎴戝綋鐒剁煡閬撹繖浠朵簨浜嗐侽f this man I have never heard. 鎴戜粠鏉ユ病鍚杩...
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绛旓細The story锛堜富璇級 we tell锛堝畾璇級 is 锛堣皳璇級that锛堜粠鍙ワ級 average well-being rises,and the more people are able to adapt,the more widespread the improvement becomes.鍚庨潰鏄痶he more锛 the more 鍙ュ紡锛岃秺銆傘傘傚氨瓒娿傘傘傛垜浠璁茬殑鏁呬簨鏄 姘戠敓姝ｅ湪鏀瑰杽锛堜汉姘戠敓娲绘按骞虫鍦ㄦ彁楂橈級锛岃屼笖浜...
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