1)倍數+形容詞/副詞比較級+than
??The girl is ten times cleverer than her brother.
2)倍數+as+形容詞/副詞/(名詞)+as
??His apartment is three times as large as that of mine.
??Americans eat( )as they actually need every day. (CET-4 1998,6)
??A) twice as much protein
??B) twice protein as much twice
??C) twice protein as much
??D) protein as twice much
本題考查倍數的表達方法,正確形式應為:倍數+as+形容詞/副詞/(名詞)+as,故答案為A.