how long 和how soon 的用法和区别

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  • how long,how soon和how often都含有how,并且都和“多长时间、多久”有关,但它们的用法不相同.

    how long意为“多久、多长时间”,主要是对一段时间进行提问,答语通常是(for)three days/weeks/months等时间段,它可用于各种时态.

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

    How long have they lived here?他们住在这里有多久了?

    —How long were you not at school last year?去年你多久没上学?

    —About two weeks.约两周.

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    how soon意为“还要多久”,是对从某个基本时间到将来某动作结束或某动作发生这段时间提问,常用在一般将来时态的句子中,其答语通常是“in + 一段时间”.

    —How soon can you finish the work?还要多久你能完成这项工作?

    —In half an hour.半小时后.

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    how often意为“多久……次、是否经常”,用来提问在某一特定的时间进行某个动作的次数,答语通常是always,usually,often,sometimes,once/twice a day/month等.

    —How often do you get to school very early?你多久早到校一次?

    —Usually.通常.

    —How often do you see a film?你多久看一次电影?

    —Once a month.每月一次.

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    自我测试 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

    选择填空.

    1.— _______ did the meeting last?—About half an hour.

    A.How soon B.How long C.How far D.How much

    2.— _______ will Ezhou-Huanggang Bridge be finished?—In a few months.

    A.How soon B.How long C.How often D.How far

    3.— ________ will it take you to get to the post office?

    —About half an hour.

    A.How old B.How long C.How soon D.How often

    4.— _________ do you write to your mother?—Once a month.

    A.How many times B.What time is it C.How soon D.How often

    5.— _______ a year does your school have sports meetings?—Twice a year.

    A.How often B.How soon C.How long D.How many times

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    答 案:1.B 2.A 3.B 4.D 5.A