worth 作表语不作定语 worthy做表语及定语 worthwhile作表语及定语 worth的用法: 1. be worth (…钱）值…钱 2. be worth +n. 值得… 3. be worth doing （不用被动，主动表被动） =be worthy of being done / be worthy to be done 例句：1. The book is
worth 50 yuan. 2. The book is worth our attention. 3. The book is worth reading. 4. The book is worth of being read / to be read.
worthy的用法 ? a worthy + 名词 ? be worthy of +名词 ? be worthy of + doing (being done) / to do (to be done) 例句1. a worthy cause 崇高的事业 2. The book is worthy of our attention. 3. The book is worthy of being read / to be read. worthwhile 可以做表语及定语 ? a worthwhile+名词 ? It is worthwhile to do / doing sth 例句：a worthwhile cause崇高的事业 It is worthwhile to read the book/ reading the book.