who的介詞形式怎麼寫

who[英][hu:][美][hu]

pron.誰 什麼人 關係代詞，有先行詞 孰

一、強調句型的用法

在英語中，我們常用It is／was… who/that結構來突出強調句子的某一成分(一般是句子中主語，賓語或狀語)。在這個句型中，it沒有詞彙意義，只是引出被強調的成分。如果被強調的成分是表示人的詞，用who或that來連線都可以。如果是其它成分，則一律用that來連線。

E.g. It is my mother who／that cooks every day.

E.g. It was yesterday that Tom passed in the maths exam．

二、使用本句型的幾個注意事項

1．被強調成分是主語，who／that之後的謂語動詞應該在人稱和數上與原句中的主語保持一致。

e.g. It is I who am right． e.g. It is he who is wrong．

e.g. It is the students who are lovely．

2．即使被強調成分是句子中的時間狀語，地點狀語，原因狀語等，也不能用when，where， because，要用 that。

E.g. It was after the war was over that Einstein was able to come back to his research work again .

E.g. It was in front of the bank that the old lady was robbed．

E.g. It was because of the heavy rain that he came late．

3．如果被強調的成分有同位語，同位語也應提前。

It was from him，his chemistry teacher，that Paul learned to watch carefully in class．

4．被強調成分是作主語的代詞，用主格，是作賓語的代詞，用賓格。 It was he that helped me yesterday. It was me that he helped yesterday.

5．被強調部分既包括人又包括物，用that不用who

lt was the things and people that they remembered that they were talking about．

三、考試中，為了增加試題難度，強調句型經常以疑問句形式出現。其一般疑問句形式是：

Is／Was it+被強調成分+who／that

Is it h who teaches you English?

其特殊疑問句形式是：疑問詞+is／was+被強調成分+that...

Why was it that you did not attend the meeting yesterday?

When was it that this traffic accident happen?

Where was it that you put my English dictionary?

四、區分定語從句和強調句型某些定語從句和強調句型形式差不多，容易混淆。如果去掉it is／ was ... that句子仍然通順成立，則為強調句型，不成立不通順，則為定語從句。

E.g. It was three years ago that he went to American for a further study·

去掉It was that句子為Three years ago he went to America for a further study．句子通順，意思完整，那麼，這就是一個強調句型。

it ..用作強調句時，不作句子成分，也就是說去掉it is that 句子還是能夠單獨使用。這是和定語從句的區別。還用that引導的名詞性從句也是這樣的。 下面講下強調句型：

1、 強調句型特點是：去掉It be …that/who…，句子成分完整。

It is in the street that I met her 強調句 把it is that 去掉，句子完整，in the street I met her. It is clear that not all boy like foot ball，去掉後，clear not all boy like football不完整，不是強調句（是主語從句）

2、 強調句中只有that/who/whom，不會出現where，which， when等。

It is the street where I met her 定語從句 where 關係副詞 做定語從句中的地點狀語

3、 如果強調時間地點 就看前面有沒有介詞， It is in the morning/at some place that.......一般情況下就是強調

判斷是否是強調句一般用以下方法：

把 It is/was ……that 去掉，看句子是否完整，若完整，則為強調句，若不完整，則為從句。 例：It was at the school gate that I met an old friend of mine.(強調句)

It was the school gate where I met an old friend of mine. （定語從句）who

1、 (用作疑問代詞)誰，什麼人

Did Mary tell you who that girl's father is?

瑪麗有沒有告訴你那女孩的父親是誰?

Who has borrowed my pen?

誰借了我的鋼筆?

2、 (用作限定關係代詞)...的人

The girl who spoke is my best friend.

那講話的女孩是我最好的朋友。

3、 (用作非限定關係代詞)他她他們她們

I went to the movies with Mary， who I think you once met.

我與瑪麗一起去看電影。我想你見過她。