擅长:语法理论,语言学,文化背景
Infants are wired to look at parents’ faces (1) to try to understand their world(2).
第一个不定式,跟前面的系表are wired 组成“合成谓语”,即:be wired to do sth. 最好看作 “趋向合成谓语”。wired 是形容词,意为“紧张不安的;急躁的”。
第二个不定式,作目的状语。
英语中,有些be + adj. to do 结构, 系表结构和不定式构成“合成谓语”,不要拆分。这类结构具有“情态意义”,“合成谓语” 包括以下几种情况:表示“能力、义务、意愿、推测、倾向”等。它们在意义上相当于对应的情态动词。
(1)能力类:be + able/unable
+ to do = can do/can’t do
(2)义务类:be supposed/expected/obliged to do = should do
(3)推测类:be + sure/certain/likely/bound + to do = must do/may do
(4)意愿类:be +
willing/unwilling, reluctant + to do = will do/ won’t do
(5)趋向类:be + ready/anxious/eager/curious/apt + to do
以上解答属于个人观点。