Question

15．這個(gè)男孩還沒有到獨(dú)立處理這樣的難題的年齡．
The boyis not old enough to deal with such a difficult problem by himself．

Answer 1

分析 is not old enough to deal with such a difficult problem by himself．

解答 答案：is not old enough to deal with such a difficult problem by himself．
結(jié)合句意，表達(dá)的是客觀是說用一般現(xiàn)在時(shí)，表達(dá)不夠怎樣去做某事用be not+adj+enough to do sth，主語the boy，故is，故is not old enough to，處理deal with，這樣的難題such a difficult problem，by oneself獨(dú)自的，故答案是is not old enough to deal with such a difficult problem by himself．

點(diǎn)評(píng) not+adj．+enough to do sth是不夠…而不能做某事 
too+adj．+to do sth．是太…以致不能做某事，其實(shí)兩者可以互換!
例：He is not tall enough to catch the bird．=too short to catch the bird