if從句的時態(tài)
if從句的時態(tài)
if從句是英語的一個重要知識點,學習英語的人必須要掌握if從句的時態(tài)。下面是學習啦小編為你整理的if從句的時態(tài)的相關資料,希望大家喜歡!
if從句的時態(tài)
當主句是一般現(xiàn)在時態(tài)時,從句也是一般現(xiàn)在時態(tài):
當主句是一般過去時態(tài)時,從句也是一般過去時態(tài);
當主句是一般將來時態(tài)時,從句便是一般現(xiàn)在時態(tài)
1.在時間或條件狀語從句中,一般現(xiàn)在時也表示將來。
例: We’ll go there if it doesn’t rain this afternoon.
這是固定的搭配法,如果都用i will to know if there will be a.....
這樣就出現(xiàn)2個將來時了,事實上雖然都是沒發(fā)生過都可以用將來時,但還是有動作的先后順序的
2. 我想知道(I want to)肯定是一般的動作,如果(if)這種帶假設的肯定是沒發(fā)生,肯定是用將來時。
if從句的用法
if有兩個意思:“是否”和“如果”.
當做“是否”講時一般引導賓語從句,時態(tài)依據(jù)時間狀語來做決定,
如:I don't know if he will come tomorrow.
當做“如果”講的時候,又分為兩種情形:
1.真實性條件狀語從句,此時遵循“主將從現(xiàn)”原則,即主句用將來時,而if條件狀語從句用一般現(xiàn)在時來代替將來時.
如:If it doesn't rain tomorrow,I will go shopping with my friends.
2.虛擬性條件狀語從句,初中階段常接觸對現(xiàn)在和對將來的虛擬,此時主句多用過去將來時(would+動詞原形),而從句用一般過去時(V-ed).
如:If I knew his telephone number,I would tell you.
if的釋義及造句
conj.如果,倘若; 即使; 〈口〉是否; 假設
n.條件,設想;
1. If you wait, all that happens is that you get older.
如果你等待,發(fā)生的只有變老。
2. If you love life, life will love you back.
熱愛生活,生活也會厚愛你。(Arthur Rubinstein)
3. If you're not satisfied with the life you're living, don't just complain. Do something about it.
對于現(xiàn)況的不滿,不能只是抱怨,要有作出改變。
4. Friendship means understanding, not agreement. It means forgiveness, not forgetting.It means the memories last, even if contact is lost.
友情是理解,不是妥協(xié);是原諒,不是遺忘。即使不聯(lián)系,感情依然在。
5. You have to do everything you can. You have to work your hardest. And if you do, if you stay positive, then you have a shot at a silver lining.
你需要盡你所能,最大限度地去努力。只要你這么做,只要你能保持樂觀,你就會看見烏云背后的幸福線。
6. The house seemed muted, hushed as if it had been deserted.
房子里似乎悄然無聲,安靜得好像已經(jīng)沒人在住一樣。
7. He'd phoned Laura to see if she was better.
他打電話給勞拉看她是不是好些了。
8. Things might have been different if I'd talked a bit more.
如果當時我再多說一點的話,結果或許會不一樣。
9. If your skin becomes red, sore or very scaly, consult your doctor.
如果皮膚發(fā)紅、瘙癢或脫皮,要向醫(yī)生咨詢。