→Why didn’t Mary come to school yesterday?
注:how long, how soon和how often都含有“多久”的意思,都能对时间状语进行提问,应注意其区别:
how long提问“一段时间”,即对介词短语for... 和since... 提问,可用于一般现在时、一般过去时、一般将来时、现在完成时等。如: They stayed there for ten years. (问多长时间,状语) →How long did they stay there?
how soon提问“多久以后”,即表示所间隔的时间段,如介词短语in... 等,常与一般将来时连用,这种情况有时也可用when提问。如: He will be back in an hour. (问多久以后,状语) →How soon/When will he be back?
They will finish the work very soon. (问多久以后,状语) →How soon will they finish the work?
how often提问频度、“多久一次”,即重复动作所发生的时间间隔,不强调次数,常与一般现在时和一般过去时连用。如: I watch TV every evening. (问多久一次,状语) →How often do you watch TV?
小升初英语句型转换方法
→Whydidn’tMarycometoschoolyesterday?注:howlong,howsoon和howoften都含有“多久”的意思,都能对时间状语进行提问,应注意其区别:howlong提问“一段时间”,即对介词短语for...和since...提问,可用于一般现在时、一般过去时、一般将来时、现在完成时等。如:Th
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