Question

1．他太虛弱了，讓他一直在電腦前工作是不可能的．
He isso weak that it's impossible to keep him working in front of the computer．

Answer 1

分析 so weak that it's impossible to keep him working．

解答 答案：so weak that it's impossible to keep him working．這里是說客觀事實用一般現(xiàn)在時，表示如此…以致于，用so/such…that，這里是用形容詞weak，表示如此虛弱，故用副詞so來修飾weak，故so weak that，表示做某事是怎么樣的用it作為形式主語，動詞不定式作為真正主語的句型it's+adj+to do sth，形容詞不可能的impossible，讓某人一直做某事keep sb doing sth，故 keep him working，故答案是so weak that it's impossible to keep him working．

點評 such…that作"如此…以致"解，連接一個表示結果的狀語從句．與so…that 意思相同，但用法不同．如：so…that這一結構中，so后邊可加形容詞或副詞，
而such后邊要用名詞（這個名詞前面可以帶形容詞，也可以不帶）He has made such great progress that the teachers are pleased with him．
他進步得很快，老師們對他感到很滿意．