after的用法

　　after有以后;后來等意思，那么你知道after的用法嗎?下面跟著學習啦小編一起來學習一下，希望對大家的學習有所幫助!

　　after的用法：

　　注意after和in的使用：從某時說到多少時間以后，不用after，而用in。如果指“某個時刻，日期或事件以后”，用after。

　　He will/would arrive in four weeks.

　　表達“某事件的若干時間以后”時，應是“若干時間after事件”，而不是“after若干時間of事件”?？烧ftwo hours after his arrival，不可說after two hours of his arrival。在“two hours after his arrival”前加不同的介詞，有不同的意思:“two hours after his arrival”單用時指“他到達兩小時以后”。若前面加the，如the two hours after his arrival指“他到達以后的兩小時”，加for指“在他到達以后的兩小時全段時間里”，加in 跟沒有in意思相同，加within指“在他到達以后的兩小時中的某時刻”;

　　指“若干時間after日期或月份”時，常把當天的日期或當月除外。如five days after 3 July，指從7月4日算起的5天以后，也就是7月9日。但有例外，five days after I July可能指7月8日，months after July可能指11月，注意避免這種結構產生誤解;

　　指“從過去的某時或某事說到現(xiàn)在”時，不用after，用since，所以可說Since his graduation he has been abroad.(since不可改成after)一定要改的話，可表示為After his graduation he went abroad. 這里的after是介詞，用作連接詞時用法一樣。

　　He went abroad after he graduated.

　　不可說 He has been abroad after he graduated.

　　half after four，five minutes after eight等是美國英語，相當于英國英語half past four，five minutes past eight等，英國方言中也有half after four等表達方式;

　　after引導的狀語從句，用現(xiàn)在時態(tài)，不用將來時態(tài)。

　　I shall start after he comes.

　　after常指時間先后的次序，而behind常指位置，如August comes after July，用after,，而A garden lies behind the house，用behind。不過有時after和behind可以通用。

　　Please shut the door after/behind you.

　　He came in after/behind her.

　　be after指“追求，要求”，

　　He is after you.

　　他正在追求你。

　　He is always after me to teach him the violin.

　　他老是要我教他小提琴。

　　after all有時指“雖然這樣”，

　　In coming home we got caught in the rain and became wet through and through, after all I don't mind as we had a fine time.

　　不可說be after doing …，這里不是指想要做什么，或是將要做什么，而是已經做了什么。但是可以用after doing…的結構。

　　After completing this form, give it to the secretary.

　　after作為副詞時，通常不單用，而是以其他形式出現(xiàn)，如afterwards，then或afterthat。

　　I'm going to do my exams, and afterwards I'm going to study medicine.

　　after英語例句：

　　1. No matter where you go in life or how old you get, there's always something new to learn about. After all, life is full of surprises.

　　不管你生活在哪里，你有多少歲，總有新東西要學習，畢竟，生活總是充滿驚喜。

　　2. He was fired from his job after roughing up a colleague.

　　他因為對一位同事動粗而被開除了。

　　3. The mystery hero imme-diately alerted police after spotting a bomb.

　　那個無名英雄發(fā)現(xiàn)炸彈后馬上報了警。

　　4. After a three-weekend courtship, Pamela accepted Randolph's proposal of marriage.

　　經過3個周末的追求之后，帕梅拉接受了倫道夫的求婚。

　　5. The ballot was re-run on Mr Todd's insistence after accusations of malpractice.

　　因被控舞弊，在托德先生的堅持下重新進行了投票。

　　6. He does deserve some good luck after so much wretchedness.

　　經過這么多苦難之后，他應該行點好運了。

　　7. After sixteen years of marriage they have grown bored with each other.

　　結婚16年后，他們已經漸漸彼此厭倦了。

　　8. After years of neglect and decline the city was cleaning itself up.

　　多年的玩忽職守和經濟蕭條過后，這個城市在進行自我整頓。

　　9. After his elevation to the papacy, he reigned for two years.

　　他升任教皇后在位兩年。

　　10. She dropped out after 20 kilometres with stomach trouble.

　　20公里后她因胃痛而退出了比賽。

　　11. They were spotted after three hours adrift in a dinghy.

　　他們在小舢板上漂浮了3個小時后才被發(fā)現(xiàn)。

　　12. These chaps know their stuff after seven years of war.

　　7年的戰(zhàn)爭過后，這些家伙都成了作戰(zhàn)行家。

　　13. After the pain of defeat passes, England have some thinking to do.

　　失敗的痛苦過去以后，英國人應該認真反思一下。

　　14. Hopefully, you won't have any problems after reading this.

　　希望你讀完這個后就不會有任何問題了。

　　15. She travelled to India after taking her A levels.

　　她參加完高等程度考試后去印度旅行了。