關(guān)于4個(gè)英語句子的并列結(jié)構(gòu)問題
1、A great many people are surfing on line within a stretching spider web,either to entertain themselves or to meet their work’s needs.
2、The spider web serves as a symbol of Internet,both connecting people and isolating them from each other.
第一個(gè)句子中,通過either...or...連接的是to的結(jié)構(gòu),而第二個(gè)句子中both...and...連接的是doing.它們兩個(gè)為何不同?
因?yàn)閑ither...or和both...and本身的區(qū)別還是所在句子的不同而引起的一個(gè)接to,一個(gè)接doing?
3、Once indulged in the fictitious world,people feel reluctant to approach others and to concentrate on real life.
4、It is necessary for us to use Internet in a reasonable way and restrain from overindulgences.
第三句中有個(gè)and引起的并列,前面是to approach,后面是to concentrate,因?yàn)椴⒘?所以前后結(jié)構(gòu)一致,這個(gè)我理解,呵呵.可是第四個(gè)句子中and前是to use,而and后是restrain,為何不是to restrain哩?