If it rains tomorrow, we will cancel the picnic.
If I had a lot of money, I would buy a yacht.
If he were ready, we would go.
If I had enough money, I would travel around the world.
If +S + 動詞過去式，S+ would +動詞原形
If it fine tomorrow, we will go on a picnic.
If I (know)her phone number, I call her.
What you say if you (talk) with an alien?
If I rich, I buy the mansion.
If I had left ten minutes earlier, I would not have missed the train.
She would have died if the climber had not found her.
If +S + 動詞過去完成式，S+ would +have +past participle
4. if 子句和主要子句的時間點不一致時
If I had taken the medicine then, I might be fine now.
主要子句中有 “now” 是以假設語氣的過去式來表現與現在事實相反的假設，所以 如果主要子句與從屬子句各自表示不同的時間點，就必須要分開考慮。
If you a little more careful, you not
Such a mistake.
She in time for school if she
If I the train, I present at the party now.
I wish I knew her telephone number.
I wish I hadn’t bought such an expensive bag.
Note: wish 後面一定要用假設語氣，不可以用現在式
I wish I could play the guitar as well as you.
I wish my father would give up smoking.
I wish she had been at home when I called.
I wished she were at home when I called.
I wish I were a bird.
I wished I were a bird.
I wish I (know)his home address.
I wish she (not tell) a lie to me.
I (wish) she kept quiet.
He talks as if he were an expert in economics.他說的好像他是經濟學專家一樣
You looks as if you had seen a ghost.你看起來好像之前看到鬼似的
He talked as if he were an expert in economics.他當時說的好像他是經濟學專家一樣
You looked as if you had seen a ghost.你當時看起來好像之前看到鬼似的
As if 後面也可以加直述句。當說話者判斷應該是事實的時候as if子句可以用直述句
You talk as if you are angry.(you are angry應該是事實)
You talks as if you were angry.（you are not angry應該是事實）
As if 後 +to V
Her guest suddenly stood up as if to leave.
You behave as if you a star.
She looked as though she never me before.
1. were to
If you were to win the lottery, what would you do?
If you were to present her with a bunch of roses, she would be pleased.
If our daughter should need our help, she would call us.
1. What would happen if he were to tell others about our secret?
2. If you should be unable to come, please let me know soon.
- Nov 25 Tue 2008 23:31