1. 表示多长时间,是对时间段的提问。与延续性动词连用, 主要用来对一段时间(如three days, four weeks 等)提问。常用“for+一段时间”和“since+时间点” 回答
A:How long did he stay here? 他在这儿呆了多久
B:About two weeks. 大约两个星期。
A:How long does it take to get to London from here? 从这里到伦敦要多长时间?
B:At least ten hours. 至少要10个小时。
2. 表示某东西有多长。如
A:How long is the river? 这条河有多长?
B:About 500 km. 大约500千米。
二、how often的用法
how often用来提问某动作或状态发生的频率,即问某人在一段时间内做某事做了几次。主要对频度副词或状语(如:always,usually, often, never或 twice a day ,once a week, ,three times a month 等)提问。用英语表示多少次,除了一次(once)和两次(twice)外, 其他都用基数词+times来表示,三次 “three times”,五次 “five times”。
A:How often does he come here? 他(每隔)多久来一次
B:Once a month. 每月一次。
A:How often do you visit your mother? 你多长时间看你妈妈一次?
B:Once a week. 一周一次。 A :How often do you go to the movie? 你多久去看一次电影?
B:Often. 我经常去看电影。 Danny ate breakfast twice last week.上周Danny吃了一次早餐。
Mr. Wood ate breakfast seven times last week.伍德老师上周吃了七次早餐。) 三、how soon的用法
三、how soon 指再过多久,是对将来的时间点的提问。 回答时主要用来对表示将来的一段时间(如:in an hour, in two weeks 等)提问。如A:How soon will he be back? 他要多久才回来?小时以后。
A:How soon shall we know the results? 我们多久能知道结果? B:I don’t know. 我不知道 四,
四. how far意思是“多远”,对距离提问时用。
How far is it by rail from Shanghai to Guangzhou? ------- 650 kilometres. 乘火车从上海到广州有多少路程?
How far is it from you home to your school ? ---About two kilometers. 从你家到学校有多远呢?
How far 和How long 的区别
how long : 持续多长时间(多久)How long have you been here? For five months.
长度(多长) How long is the bridge? It’s 500 metres.
how far : 距离(多远) How far is it from here to the zoo?
对比:
How Long 是提问事物的长度,与距离无法,如北京上海高速路多长,长城多长,长江多长?
How far 强调两个地点间的距。
How long does it take you to get to school from home? It takes tem minutes by bus.
How long is the BJ-SH express高速?
How long is the Great Wall?
How far is it from your home to school? It’s about 10 Kilometers.
一,选填 (how long, how often,
---3.______________ do you visit you grandparents? ----Once a week.
---4. ________________ should I throw it -----Five metres.
----6______________ do his parents let him watch TV? ----- Three times a week.
二 选择题:
1._ —
A. How long B. How often C. How far
A How much B How often C How long D How soon
3.____yogurt do you need? ____Three cups.
A. How long B. How far C. How long D. How much
4._____can we board(上 )o—In twenty minutes.
5—Sorry, I do not know.
A. how far B. how soon C. how many D. how long
按英语的习惯用法,in the morning(afternoon/evening)表示“在早上(下午)晚上”之意,
而on the morning(afternoon/evening)of则表示“在某个具体的一天的早上(下午/晚上)”之意,试比较:
1)He often reads English and Chinese in the morning. 他常在早上朗读英语和语文。
2)At 5∶13 on the morning of April 18th,1906
on the morning 指的是在特定的某一天的早晨,on the morning不能单独用,后面必须跟上介词of特指某一天的早上,或者morning前加形容词或名词。例如“在寒冷的早晨”on a cold morning 然而in the morning就没有特定的指某一天的意思了。in the morning可以单独使用,作为固定的时间状语来使用
当表示在具体某一天早晨,下午,晚上,或者说出天气状况时,要使用介词on. 例如
on a windy morning
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