壹、worth壹般只用作表語
1．主語（物）+be +worth + 名詞。
Hawaii is a beautiful place for travelling and worth a visit. 夏威夷是個旅遊勝地，值得壹遊。
The new bike is worth 350 yuan 。這輛新自行車值350元。
2．主語（人）+ be +worth + (表示金錢或財產)名詞。表示“擁有……財產”。
He is worth several million dollars .他有好幾百萬美元的財產。
How much is Mr. Green worth ?格林先生有多少財產。
3．主語（物）+ be + worth +動名詞。
The book is worth reading .這本書值得壹讀。
The car isn't worth repairing.這輛汽車不值得修了。
請註意：（1）在這種情況下，名子的主語與動名詞在邏輯上有動賓關系，因此這個動名詞應該是及物的（如上述例句）或具有及物性質的短語動詞（如下述例句）。
The broadcast programme is worth listening to .這條廣播節目值得壹聽。
The picture is worth taking good care of .那幅畫值得好好保存。
（2）在這結構中，也可用先行詞it 作主語。
It is worth repairing the TV set. 這臺電視機值修壹下。
（3）worth前面，壹般用well修飾，不用very。
The scheme is well worth a try .這個計劃很值得壹次。
4．Worth one's while "對……是值得做的，對……有益的，使感興趣的”，主語是動名詞或動詞不定式。句首用it作形式主語。
（1） It is worth (one's) while + doing sth.值得某人做某事。
It is worth out while discussing the question again .這個問題值得我們再討論壹下。
（2） It is worth (one's)while +to do sth. =To do sth .is worth(one's)while.值得（某人）做某事。
It would be well worth your while to come to the meeting. 來參加這個會議對妳來說是很值得的。
二、worthy 可作定語和表語，作表語時是“值得”的含義。
1．Worthy 可作定語，意思是“可敬的，有價值得，相稱的”。
They are my worthy friends. 他們是我的可敬的朋友。
2． Worthy 作表語，後接不定式作狀語。如果句子的主語是動詞不定式的邏輯主語，則不定式有主動語態；如果是動賓關系，則用被動語態。
The problem is worthy to be considered .這個問題值得考慮。
3．Worthy of “值得……，配得上……”。
（1）主語 + be + worthy of + n .
The article is worthy of careful study . 這篇文章值得仔細研究。
Her achievements are worthy of the highest praise .她的成就值得高度的贊揚。
（2）主語 + be + worthy of + being done
The book is worthy of being read .這本書值得壹讀。
比較：The book is worthy to read.
The book is worth reading .
(3)worthy of 作後置定語。
He is a teacher worthy of great respect. 他是位受尊敬的教師。
He is a poet worthy of the name .他是壹位名副其實的詩人。