英文imagine的用法

假設語氣: (1)Imagine if the rainforests had disappeared in the stone age, what would our ancestors have done then? (2)Imagine that the rainforests had disappeared in the stone age, what would our ancestors have done then? (3)Imagine the rainforests had disappeared in the stone age, what would our ancestors have done... 顯示更多 假設語氣:
(1)Imagine if the rainforests had disappeared in the stone age, what would our ancestors have done then?
(2)Imagine that the rainforests had disappeared in the stone age, what would our ancestors have done then?
(3)Imagine the rainforests had disappeared in the stone age, what would our ancestors have done then?


陳述語氣:
(1)Imagine if you are a millionaire.
(2)Imagine that you are a millionaire.
(3)Imagine you are a millionaire.


Q:都對嗎?若皆對,這兩種語氣中用if和that差在哪?
更新: 感謝PONY和Ed的回答
我剛好正疑惑我列的假設語氣部分,怎麼看起來兩句間都缺連接詞。
更新 2: 所以陳述語氣(1)
Imagine (what will happen), if you are a millionaire. ,是來自what will happen和痘號一併省略?
更新 3: 假設語氣(1),也可改成以下兩型式?
Imagine what our ancestors would have done then, if the rainforests had disappeared in the stone age.
Imagine if the rainforests had disappeared in the stone age. What would our ancestors have done then?
2 個解答 2