施瓦辛格巅峰力量数据:由 how often 谈起 新浪教育
来源:百度文库 编辑:中财网 时间:2024/05/08 09:03:50
我们通常六点半起床。 Sometimes he goes to see his grandpa on weekends.
周末,他有时候去看望爷爷。
但是,在日常生活中,我们不可能总是用陈述句来表达自己的或他人的一些行动,或者事物所存在的状态。我们还要向对方提出一些问题,请求对方回答。在这种情况下,我们还要用疑问句。如:
1. -How often do you play football?
-I usually play football after school.
2. -How often does Mary go to the concert?
-She often goes to it on Saturday evening.
3.-How often does my daughter take the medicine?
-Three times a day.
不知大家是否注意到,我们针对上面所说的频度副词和表示"在某段时间内某种动作的次数"的状语提问时,都要用how often。换句话说,如果要回答由how often提问的句子,我们通常要用频度副词或诸如every day, each week, once a week, twice a day, four times a month等来回答。例如:
4. -How often do you borrow books from the library?
-Twice a month.
5. -How often does your mother do the washing?
-She does it every day.
6. -How often can you go to the movie?
-Once a week.
在大家所做的练习中,常见的有"句型转换"。这种题型有一种"就划线部分提问",要求针对陈述句中的划线部分提出问题(也就是把陈述句变成特殊疑问句),其中就有针对上面所说的频度副词或every day, each week, once a week, twice a day, four times a month等提问的句子。这时候自然要用how often来提问了。例如:
Jack watches TV three times a week.→How often does Jack watch TV? Our school has a sports meeting twice a year.
→How often does your school have a sports meeting?
要注意的是,陈述句在变成这种特殊疑问句时,其结构是:“How often+助动词(或系动词 be)+主语+实义动词(如果前面是系动词be的某种形式,则不再用实义动词)+其它成分?”