英語助動詞讀書筆記
助動詞一般沒有詞意,不能單獨作謂語動詞。其作用在於幫助構成各種時態、語態、否定、疑問等。下面是小編精心為您整理的,希望您喜歡!
1、助動詞be***am, is, are, was, were, being, been***的用法
***1*** be後跟現在分詞構成進行時態。
Who is playing the violin?誰在拉小提琴?
She was reading a book then.那時她正在讀書。
***2***be後跟過去分詞構成被動語態。
He was asked to do the work.有人要他幹這件工作。
You are invited to attend the meetintg.有人邀請你參加會議。
***3***be 後跟不定式作謂語,有如下幾種情況:
①表示計劃、安排將要發生的事。
Who are we to meet?我們要見誰呀?
I'm to have supper with John this afternoon.今天下午我要與約翰一起吃晚飯。
②表示指示、命令,否定式表禁止。
You are to see the headmaster today.今天你必須去見校長。
You are not to enter the room without permission.未經允許你不能進入房間。
③表示義務、責任等,同should。
You are to be back before 5.你得在5點鐘以前回來。
What is to be done?該幹什麼。
④表示可能性,與情態動詞may, can同義。
Such books are to be found in any library.這種書任何圖書館都有。
Not a sound was to be heard.一點聲響也沒有。
⑤表示後來發生的事,可以用來表示命運或註定
They say good-bye, little knowing that they were never to meet again.他們告別了,沒想到再也不能相見了。
He was to regret the decision.他有一天會後悔做出這一決定的。
⑥用於習語
Where am I to go? 我該向何處去?
What am I to do? 我該怎麼辦?
2、助動詞have***has, had, having***的用法
***1***助動詞have可以構成完成時或完成進行時
He has been a doctor for 10 years.他當醫生十年了。
This is the place I have been longing to visit.這就是我一直渴望參觀的地方。
***2***和不定式構成謂語,表示客觀上不得不做的事情。
We've missed the train. We'll have to wait for another one.我們己經誤了火車,我們只能等下一列。
-Do we have to start work?我們得立刻工作嗎?
-No. We don't have to.不,不必了。
3、do***does, did*** 的用法
***1***構成疑問句或否定句
How did you know about it?你是怎樣知道這件事的。
He does not smoke. 他不抽菸。
***2***加強語氣。
He did tell that.他的確告訴了此事。
Do come and see us.一定來看我們。
***3***代替前面剛出現的動詞,避免重複。
-You like popular music, don't you?你喜歡流行音樂,是吧?
-Yes , I do.是的,我喜歡。
He speaks French as fluently as she does.他講法語和她講的一樣流利。
***4***用於倒裝句中。
Never did he pay attention to my words.他從不注意我的話。
Only then did I understand the importance of English.只是那時,我才瞭解到英語的重要性。
***5***構成否定的祈使句。
Don't be so careless.不要那麼粗心。
Do not hesitate to come for help.只管來求助。
4、shall***should***和will***would*** 的用法
***1***shall***should***用於第一人稱的將來時中,單純表示來
I shall think it over.我要好好考慮一下。
When shall I see you again?我何時再見到你?
I rang up to tell her that I should leave for London. 我打電話告訴她我要去倫敦。
***2***will用於第二、第三人稱的將來時態中,在現代英語中可以用於所有人稱
He will be 30 next month. 他下月將是30歲。
You will have an English test tomorrow.明天你有英語小測驗。
He wanted to know when you would finish the writing.他想知道你何時完成寫作。