A. opened and closed B. to be opened and closed C. being opened and closed D. to open and close 解析:本题the noise of中的of是介词,后面应该用-ing形式,desks作-ing的逻辑主语,所以答案为C。 原则六、-ing形式或to do可作主语或宾语,-ed形式则不可以 例11. ___...
2. worthy:be worthy of +n. 当名词为抽象名词时表示"……值得……" be worthy to be done "某事值得被做" The question is not worthy to be discussed againand again. 3. worth-while:be worth-while to do sth "值得做某事" worth while:It is worth while doing ...
worth while: It is worth while doing sth It is worth while sb to do sth. 典型例题 It is not ___ to discuss the question again and again. A.worth B.worthy C.worth-while D.worth while 答案C. 由worth的用法可知,此句只适合词组be worth-while to do sth.。...
worth用作表语时,不能单独使用,其后通常接动词的-ing形式,而不能接动词不定式。常用的句式有: 1. “主语+be+worth+动词的-ing形式+……”此时,句子的主语就是worth之后动词-ing形式的逻辑宾语。例如: Now John is worth talking to.(现在值得与约翰谈一谈。) ...
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