30秒搞懂 英文的比較 什麼跟什麼一樣 as...as 用法

as xxx as 是一個常用的句型，用來表示英文的比較，例如兩個事物或人之間、或什麼跟什麼之間、或數學上的比較。例如：

• The eraser is as long as the beads.
• The broom is as tall as the tree.
• The key is as heavy as the rock.

上面這張圖片我本來第一眼還覺得沒什麼問題，看第二次之後才發現原來是要寫：

1. The eraser is as long as seven beads.
2. The broom is as long as seven straws.
3. The key is as long as five pins.
4. The nail is as long as seven screws.

英文的比較 as ... as 基本用法

在這個句型中，xxx 必須是形容詞，例如常見的：

• 長度：long, tall, short, thick, thin
• 重量：heavy, light
• 寬度：wide, narrow
• 速度：fast, slow
• 溫度：hot, cold
• 強度：strong, weak

as ... as 數學的用法

在數學語境中，"as xxx as" 可用來表示兩個數值或量之間的相等或相似關係。

1. 用來表示兩個數值相等。例如：
   這種用法在實際語境中比較少見，因為我們通常直接使用等號 (=) 來表示相等。不過，為了說明，這樣說是可以的： "2 is as large as 2."
2. 用來表示兩組數值之間的差異相近。例如：
   The difference between 3 and 2 is as small as the difference between 4 and 3.
3. 用來表示兩組數值的比例相等。例如：
   The ratio of 2 to 3 is as same as the ratio of 4 to 6.

練習題

以下是一些練習題，幫助你學習 as xxx as 文法：

1. The apple is as ____ as three tomatoes. (長度)
2. The sky is as ____ as the sea. (顏色)
3. The water is as ____ as ice. (溫度)
4. The sun is as ____ as fire. (溫度)
5. The wind is as ____ as a hurricane. (強度)

答案：

1. long
2. blue
3. cold
4. hot
5. strong

延伸閱讀：

• As … as - 當代英語文法 - 劍橋線上詞典

以上為大部分適用的文法規則，但難免會遇到例外或是其他的用法。
歡迎預約一堂 1on1 家教老師問到飽、無痛學習英文。