how long可以用于什么時(shí)態(tài)

how long可以用于什么時(shí)態(tài)

　　how long是多久的意思，那how long可以用在什么時(shí)態(tài)呢?下面是學(xué)習(xí)啦小編為你整理的how long的時(shí)態(tài)的相關(guān)資料，希望對(duì)大家有用!

　　how long的時(shí)態(tài)

　　how long

　　多久; 多長(zhǎng);

　　表示段時(shí)間,與答句中的for連用,表示段時(shí)間.how long~……for 3days

　　現(xiàn)在完成或進(jìn)行時(shí)：how long is...

　　過去式：how long was...

　　將來時(shí)：how long will...

　　how long的常見用法

　　1. There's no telling how long the talks could drag on.

　　誰也說不準(zhǔn)談判還會(huì)拖多久。

　　2. It is an open question how long that commitment can last.

　　這一承諾能維持多久還不確定。

　　3. How long he'll be able to do so is a moot point.

　　不知道他還能這樣做多久。

　　4. "How long have you lived here?" — "Twenty odd years."

　　“你在這里住多久了?”——“20多年了。”

　　5. How long is the usual stay in hospital?

　　住院通常要多長(zhǎng)時(shí)間?

　　6. How long is the tunnel?

　　隧道有多長(zhǎng)?

　　7. How long did you stick it for?

　　你堅(jiān)持了多久?

　　8. How long have you lived around here?

　　你住在這一帶有多長(zhǎng)時(shí)間了?

　　9. How long would the roof hold?

　　房頂能支撐多久?

　　10. How long will I be under the anaesthetic ?

　　我會(huì)麻醉多長(zhǎng)時(shí)間?

　　how long 和how soon 的用法和區(qū)別

　　how long "多長(zhǎng)時(shí)間“一般用于現(xiàn)在完成時(shí)態(tài)

　　how soon "多久以后”一般用于將來時(shí)態(tài)

　　how long,how soon和how often都含有how,并且都和“多長(zhǎng)時(shí)間、多久”有關(guān),但它們的用法不相同.

　　how long意為“多久、多長(zhǎng)時(shí)間”,主要是對(duì)一段時(shí)間進(jìn)行提問,答語通常是(for)three days/weeks/months等時(shí)間段,它可用于各種時(shí)態(tài).

　　How long do you stay in Beijing every year?每年你在北京住多久?

　　How long have they lived here?他們住在這里有多久了?

　　—How long were you not at school last year?去年你多久沒上學(xué)?

　　—About two weeks.約兩周.

　　how soon意為“還要多久”,是對(duì)從某個(gè)基本時(shí)間到將來某動(dòng)作結(jié)束或某動(dòng)作發(fā)生這段時(shí)間提問,常用在一般將來時(shí)態(tài)的句子中,其答語通常是“in + 一段時(shí)間”.

　　—How soon can you finish the work?還要多久你能完成這項(xiàng)工作?

　　—In half an hour.半小時(shí)后