…… worth + V-ing ……
結(jié)構︰worth＋動名詞
說明︰此句型意為“值得…”。worth 是<介系詞>，使用時要用<名詞>或<動名詞>做<受詞>，形成<介系詞詞組>，當 <形容詞>用。worth 之后接<動名詞>時，<主詞>必須為該<動名詞>之<受詞>，否則<動名詞>之后須另加<介系詞>，使<主詞>做其<受詞>.這種<句型>不可用虛<主詞> it 做<主詞>.
London is a city worth visiting. 倫敦是值得參觀的城市。
He who does his duty is worth praising. 凡是忠于職守的人都值得贊揚。
A book worth reading once is worth reading time and time again.
值得一看的書值得一看再看。
The work is worth doing. 這個工作值得去做。
He is worth doing the work for. 值得為他去做這份工作。
be worthy of + V-ing
結(jié)構︰be worthy of＋動名詞
說明︰此句型意為“值得…”。等于“be worthy＋to be＋過去<分詞>”。worthy 是<形容詞>，也引導<形容詞詞組>；同 worth 一樣，使用 worthy 時，不可用虛<主詞> it 做<主詞>.
This book is worthy of reading. 這本書值得一讀。
He who does his duty is worthy of praising. 凡是忠于職守的人都值得獎勵。
The event is worthy of being remembered. 那事件是值得記憶的。
On/Upon + V-ing ……
結(jié)構︰On／Upon＋動名詞…
說明︰此句型意為“一…就…”。相當于 once 引導的<副詞子句>.on 后面所跟的<動詞>的動作執(zhí)行者必須與<主要子句>的一致。
Upon reaching an appropriate age， children are encouraged， but not forced， to “l(fā)eave the nest”。 一達到適當?shù)哪挲g，孩子們就被鼓勵，而不是被強迫，“離開老窩”。
On entering the classroom， I found a book lying on the floor.
一走進教室，我就發(fā)現(xiàn)一本書丟在地上。
Upon receiving your letter， I was as happy as could be. 一收到你的信，我非常高興。
before + V-ing ……
結(jié)構︰before + 動名詞 ……
說明︰此句型意為“在…之前”。before 后面動作的執(zhí)行者，應該與<主要子句>中的動作執(zhí)行者一致。
Before entering a house in some Asian countries， it is good manners to take off your shoes.
在某些亞洲的國家，進屋子之前脫下鞋子才是有禮貌的。
Before reading the book， you had better ask yourself if you have the time.
在讀這本書之前，你問問自己是否有時間。
Before visiting him， I called him up in advance. 在拜訪他之前，我先打電話給他。
of one's own + V-ing
結(jié)構︰of one's own＋動名詞
說明︰此句型意為“由某人親自所…的”。本<詞組>為<形容詞詞組>，置于<名詞>之后，做后位<修飾語>.
This is a picture of his own painting. 這是他的親筆畫。
This is a coat of her own making. 這是她親手做的外衣。
I least expected that this should be a house of his own constructing.
我怎么也沒想到這房子是他自己造的。
keep …… from + V-ing
結(jié)構︰主詞＋keep／prevent／stop／discourage＋受詞＋from＋動名詞
說明︰此句型意為“防止…／阻止…／使…不能…／勸阻某人不要…”。有時把 from 省略。
It will take everybody's efforts to keep city noises from increasing.
那是需要每個人的努力來防止都市噪音的增加。
The rain kept us from getting there on time. 那場雨使我們不能準時到達那里。
They should try to keep prices from rising. 他們應該設法阻止價錢上漲。
Sometimes we can prevent a cloud from producing rain. 有時我們可以阻止云產(chǎn)生雨。
Nobody can prevent him from running the risk. 沒有人能夠阻止他去冒險。
The bad weather prevented us from getting there on time.
惡劣的天氣阻止了我們準時到達那里。
They didn't even try to stop him getting it. 他們甚至沒有試圖去阻止他得到它。
You should have stopped him from going swimming. 你本來應該阻止他去游泳。
A strong will will stop one from committing a crime. 強烈的意志會阻止一個人去犯罪。
Even his closest friends discouraged him from seeking higher office.
甚至他最知己的朋友也勸阻他去尋求更高的職位。
He was discouraged from making another attempt. 他受勸阻去做另一次的嘗試。
結(jié)構︰worth＋動名詞
說明︰此句型意為“值得…”。worth 是<介系詞>，使用時要用<名詞>或<動名詞>做<受詞>，形成<介系詞詞組>，當 <形容詞>用。worth 之后接<動名詞>時，<主詞>必須為該<動名詞>之<受詞>，否則<動名詞>之后須另加<介系詞>，使<主詞>做其<受詞>.這種<句型>不可用虛<主詞> it 做<主詞>.
London is a city worth visiting. 倫敦是值得參觀的城市。
He who does his duty is worth praising. 凡是忠于職守的人都值得贊揚。
A book worth reading once is worth reading time and time again.
值得一看的書值得一看再看。
The work is worth doing. 這個工作值得去做。
He is worth doing the work for. 值得為他去做這份工作。
be worthy of + V-ing
結(jié)構︰be worthy of＋動名詞
說明︰此句型意為“值得…”。等于“be worthy＋to be＋過去<分詞>”。worthy 是<形容詞>，也引導<形容詞詞組>；同 worth 一樣，使用 worthy 時，不可用虛<主詞> it 做<主詞>.
This book is worthy of reading. 這本書值得一讀。
He who does his duty is worthy of praising. 凡是忠于職守的人都值得獎勵。
The event is worthy of being remembered. 那事件是值得記憶的。
On/Upon + V-ing ……
結(jié)構︰On／Upon＋動名詞…
說明︰此句型意為“一…就…”。相當于 once 引導的<副詞子句>.on 后面所跟的<動詞>的動作執(zhí)行者必須與<主要子句>的一致。
Upon reaching an appropriate age， children are encouraged， but not forced， to “l(fā)eave the nest”。 一達到適當?shù)哪挲g，孩子們就被鼓勵，而不是被強迫，“離開老窩”。
On entering the classroom， I found a book lying on the floor.
一走進教室，我就發(fā)現(xiàn)一本書丟在地上。
Upon receiving your letter， I was as happy as could be. 一收到你的信，我非常高興。
before + V-ing ……
結(jié)構︰before + 動名詞 ……
說明︰此句型意為“在…之前”。before 后面動作的執(zhí)行者，應該與<主要子句>中的動作執(zhí)行者一致。
Before entering a house in some Asian countries， it is good manners to take off your shoes.
在某些亞洲的國家，進屋子之前脫下鞋子才是有禮貌的。
Before reading the book， you had better ask yourself if you have the time.
在讀這本書之前，你問問自己是否有時間。
Before visiting him， I called him up in advance. 在拜訪他之前，我先打電話給他。
of one's own + V-ing
結(jié)構︰of one's own＋動名詞
說明︰此句型意為“由某人親自所…的”。本<詞組>為<形容詞詞組>，置于<名詞>之后，做后位<修飾語>.
This is a picture of his own painting. 這是他的親筆畫。
This is a coat of her own making. 這是她親手做的外衣。
I least expected that this should be a house of his own constructing.
我怎么也沒想到這房子是他自己造的。
keep …… from + V-ing
結(jié)構︰主詞＋keep／prevent／stop／discourage＋受詞＋from＋動名詞
說明︰此句型意為“防止…／阻止…／使…不能…／勸阻某人不要…”。有時把 from 省略。
It will take everybody's efforts to keep city noises from increasing.
那是需要每個人的努力來防止都市噪音的增加。
The rain kept us from getting there on time. 那場雨使我們不能準時到達那里。
They should try to keep prices from rising. 他們應該設法阻止價錢上漲。
Sometimes we can prevent a cloud from producing rain. 有時我們可以阻止云產(chǎn)生雨。
Nobody can prevent him from running the risk. 沒有人能夠阻止他去冒險。
The bad weather prevented us from getting there on time.
惡劣的天氣阻止了我們準時到達那里。
They didn't even try to stop him getting it. 他們甚至沒有試圖去阻止他得到它。
You should have stopped him from going swimming. 你本來應該阻止他去游泳。
A strong will will stop one from committing a crime. 強烈的意志會阻止一個人去犯罪。
Even his closest friends discouraged him from seeking higher office.
甚至他最知己的朋友也勸阻他去尋求更高的職位。
He was discouraged from making another attempt. 他受勸阻去做另一次的嘗試。