If you heat ice, it melts.If we catch the 10 o’clock train, we shall (will, can, may) get there by lunch-time.If we caught the 10 o’clock train, we would (could, might) get there by lunch-time.If we had caught the 10 o’clock train, we would (could, might) have got there by lunch-time. 請問，這四種類型的區別在哪？第一種型別條件句 真實條件句的一種 whenever條件句a). 表示普遍真理和客觀事實If you pour oil on water, it floats.如果溫度降到0度，水會結冰。b). 表示現在習慣動作If I make a promise, I keep it.假如你去看電影，你會更喜歡看哪種電影？假如現在下雨，我就坐車去上班。c). 表示過去習慣動作If it rained, I went to work by car.If I made a promise, I kept it.過去我要是餓了的話，我通常都會大吃一頓。回答以下問題：Example: What happens if we heat ice? If we heat ice, it melts.What happens to water if the temperature rises to 100 degrees centigrade?How many days are there in February if it is a leap year?What happens if flowers don’t get any water?Who do businessmen go to see if they want to borrow money?What do you expect a teacher to do if you make a mistake?What do we get if we mix red with yellow?What kind of music did you prefer if you went to a concert?第二種型別條件句 真實條件句主體If it is fine tomorrow, we can have a picnic somewhere.If you wake up before me, give me a call.If we should miss the 10 o’clock train, we shan’t get there till after lunch.從句不管主語的人稱和數如何，一律用should+不定式，主句動詞可根據語義意圖採用不同形式。Should 僅表示一種不太肯定的委婉口氣，並不影響條件的真實性。If he should fail to come, ask Philip to work in his place.If he should come tomorrow, I would tell him everything.如果再下雨的話，花就會開。Set your alarm clock, and you won’t oversleep.= If you set your alarm clock, you won’t oversleep.Set your alarm clock, or (else) you’ll oversleep.
條件句
條件句是有“條件狀語分句+主句”構成的複雜句。請看以下四種類型的條件句：
If you heat ice, it melts.If we catch the 10 o’clock train, we shall (will, can, may) get there by lunch-time.If we caught the 10 o’clock train, we would (could, might) get there by lunch-time.If we had caught the 10 o’clock train, we would (could, might) have got there by lunch-time. 請問，這四種類型的區別在哪？第一種型別條件句 真實條件句的一種 whenever條件句a). 表示普遍真理和客觀事實If you pour oil on water, it floats.如果溫度降到0度，水會結冰。b). 表示現在習慣動作If I make a promise, I keep it.假如你去看電影，你會更喜歡看哪種電影？假如現在下雨，我就坐車去上班。c). 表示過去習慣動作If it rained, I went to work by car.If I made a promise, I kept it.過去我要是餓了的話，我通常都會大吃一頓。回答以下問題：Example: What happens if we heat ice? If we heat ice, it melts.What happens to water if the temperature rises to 100 degrees centigrade?How many days are there in February if it is a leap year?What happens if flowers don’t get any water?Who do businessmen go to see if they want to borrow money?What do you expect a teacher to do if you make a mistake?What do we get if we mix red with yellow?What kind of music did you prefer if you went to a concert?第二種型別條件句 真實條件句主體If it is fine tomorrow, we can have a picnic somewhere.If you wake up before me, give me a call.If we should miss the 10 o’clock train, we shan’t get there till after lunch.從句不管主語的人稱和數如何，一律用should+不定式，主句動詞可根據語義意圖採用不同形式。Should 僅表示一種不太肯定的委婉口氣，並不影響條件的真實性。If he should fail to come, ask Philip to work in his place.If he should come tomorrow, I would tell him everything.如果再下雨的話，花就會開。Set your alarm clock, and you won’t oversleep.= If you set your alarm clock, you won’t oversleep.Set your alarm clock, or (else) you’ll oversleep.