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助動詞的方法

時間:2017-07-26 16:43:10 英語零起點 我要投稿

助動詞的實用方法

  協(xié)助主要動詞 構成謂語的詞叫助動詞(Auxiliary Verb),也叫輔助動詞。被協(xié)助的動詞稱作主要動詞(Main Verb)。以下是小編整理的關于助動詞的實用方法,希望大家認真閱讀!

  1助動詞be

  一般疑問句:

  陳述句變?yōu)橐话阋蓡柧鋾r,如句中有be動詞(am/is/are/ was/were),可直接將它們提至主語前。

  如主語為第一人稱,應將其改為第二人稱。例如:

  I'm watching TV.

  Are you watching TV?

  如主語為第三人稱,那么單數用is,復數用are。

  例如:

  He is good at swimming

  Is he good at swimming?

  My classmates are kind and polite.

  Are your classmates kind and polite?

  時態(tài)為一般過去時,例如:

  He was an engineer.

  Was he an engineer?

  They were on a long journey.

  Were they on a long journey?

  特殊疑問句:

  特殊疑問句有兩種語序:

  如疑問詞作主語或主語的定語,即對主語或主語的`定語提問,其語序是:

  “特殊疑問詞+陳述句”,例如:

  Alice is singing in the room.

  Who is singing in the room?

  如疑問詞作其他成分,即對其他成分提問,其語序是:

  “特殊疑問詞+一般疑問句”,例如:

  He is from Canada.

  Is he from Canada?

  Where is he from?

  2助動詞do

  一般疑問句:

  陳述句變?yōu)橐话阋蓡柧鋾r,如句中只有一個實義動詞作謂語時,句首加do或does,主語后的實義動詞用原形。

  例句:

  I want to have a haircut.

  Do you want to have a haircut?

  She like that red car.

  Does she like that red car?

  時態(tài)為一時般過去時,則在句首加did,主語后的實義動詞用原形。

  例句:

  She came by train.

  Did she come by train?

  特殊疑問句:

  特殊疑問詞+一般疑問句,例如:

  He plays basketball every night.

  Does he play basketball every night?

  What does he do every night?

  3助動詞have

  一般疑問句:

  在現在完成時中,陳述句變?yōu)橐话阋蓡柧鋭t需將has/have提前,放在句首。

  例句:

  I have finished my homework.

  Have you finished your homework?

  He has changed his mind.

  Has he changed his mind?

  特殊疑問句:

  特殊疑問詞+陳述句,例如:

  He has cleaned the room yesterday.

  Who has cleaned the room yesterday?

  特殊疑問詞+一般疑問句,例如:

  I have studied English for three years.

  Have you studied English for three years?

  How long have you studied English?

  4助動詞shall和will

  注意:Shall只用于第一人稱,如用于第二、三人稱,就失去助動詞的意義,變?yōu)榍閼B(tài)動詞,且有命令意味。

  變?yōu)橐话阋蓡柧,只需將shall和will提前至句首。例如:

  We should study harder at English.

  Should we study harder at English?

  He will go to Shanghai.

  Will he go to Shanghai?

  變?yōu)樘厥庖蓡柧,例句?/p>

  I shall look after the sheep.

  Who shall look after the sheep?

  She will go to Beijing tomorrow.

  When will she go to Beijing?

  5助動詞should和would

  should無詞義,只是shall的過去形式,只用于第一人稱;

  would也無詞義,是will的過去形式。

  用法與shall,will相似,只是shall,will表示一般將來時,should,would表示過去將來時。

  注意:這里的shall,will,would,should只作助動詞使用,無詞義,而非情態(tài)動詞。

【助動詞的實用方法】相關文章:

1.助動詞的用法

2.情態(tài)助動詞用法

3.意大利助動詞的核心用法

4.助動詞的具體用法

5.日語補助動詞的用法

6.英語常見助動詞的用法

7.英語情態(tài)助動詞用法

8.意大利語助動詞的用法