格列喵

Ask 較為客氣請求

I asked a friend of mine to help me. (我請求我的一位朋友幫助我)

The teacher asked you to be present ( 老師要求你在場)。

當不及物動詞用時，ask + for 連用亦意為「要求，請求」，表示想要得到某物，如

I asked for help. (我請求協助)；She asked for a cup of tea. (她要求一杯茶)。

Request 則比較正式，語氣較強，指比較正式、比較有禮貌的請求，通常是你有權得到你所要求的

⚠️Request +for

I requested assistance. (我請求幫助)

They requested financial support. (他們要求資助)

Many people have requested the next song. (許多人要求聽下一首歌)

The letter requested us to leave the house within six weeks. (這封信要求我們在六週內搬出這棟房子)。

I need to request for a personal leave this Friday.我這週五需要請一天事假。

Require 是指根據需要、法律、協定、規章以及其他客觀情況所提出的要求，尤其是用在被動態，意為「要求；規定」 ⚠️require+ sth+ of+ sb

We require extra help. (我們需要額外的幫助)

Silence is required of all examination candidates. (所有應試者都要保持安靜)

I have done all that is required by law. (我已做到法律所要求的一切)。

Demand 的語氣更強，表示你有正當權利得到某事物所提出的要求，是指堅決或強烈地要求、理直氣壯地提出要求，而且堅持不讓對方拒絕要求或不會接受否定的回答

The policeman demanded his name and address. (警察要求他說出姓名和住址)

The dissatisfied customers demanded to see the manager of the store. (不滿的顧客要求見商店經理)。

ask/ request/ require/ demand+ that (should) +Vr 表達虛擬語氣 (subjunctive mood)

He asked that they (should) be allowed to use a dictionary. (他要求准許他們使用字典)。

The teaching staff requested that the principal should reconsider his decision. (全體教學人員請求校長重新考慮他的決定)

The director required that we should work all night. (主任要求我們通宵工作)

The boss demanded that John (should) finish it within a week. (老板要求約翰在一週內完成它)

ask / request /require + O(人). + to Vr，但 demand 則沒有這用法。例如：

*demand + to + Vr = 可以

I asked her to get in touch with Mike as soon as possible. (我要求她儘快與麥可聯繫)

I requested him to come before nine. (我要求他九點以前來)

They required me to keep silence. (他們要求我保持沉默)

require (不可被動語態  但可以+Ving，以主動形式表示被動語態。

這種用法與 need 和 want 等字的用法相同，

它們後面可以接動名詞或不定詞被動態(to Vr/ Ving)。例如：

 ask, demand 和 request 則無此種用法。

My watch requires/needs/wants repairing. (我的手錶需要修理)
= My watch requires/needs/wants to be repaired.