評論
打印
Their income is ________________(一般家庭的3～5倍).
答案：three to five times that of ordinary households
解析：本題考查數的表達。考生要學會用"倍數+the size (length,volume) of..."，"...倍數+that of (what it was)..."的句型進行倍數的表達。Household是個集合詞，表示家庭，如：average household(中等家庭);multiperson household(多人口家庭);peasant household(農戶)。"家務"叫做household affairs。
