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4
听力训练
现在完成时(3)
1.要表达从过去某一时刻开始，持续到现在的动作或状态，我们也可以借助现在完成时。常与for或since（since then）引导的时间状语(从句)连用，用how long 提问，谓语动词用延续性动词。
语法探究 1
I haven’t done much exercise _____ I got my computer last year.
I have had this _______ three month.
______ _______ it has become part of my life. like
______ _______ have you been like this?
since
Since then
How long
for
现在完成时可以表示某一行为或某一状态从过去某一时间一直持续到现在。这类句子通常包含由for或since引导的时间状语，for后接段时间，since后接时间点。如：
I have lived in Beijing for 10 years.
我在北京住了10年了。
I have been in this school since 2000.
从2000年起我就一直在这所学校。
Presentation
How long have you played football?
How long have you been like this?
How long have you had the dog?
I stayed in the hotel for a week last summer.
I have stayed in the hotel for a week .
I will stay in the hotel for a week next month.
表示某一行为或状态持续多长时间时，根据时间的不同，可以使用不同的时态。
用how long对现在完成时的时间状语提问。
终止性动词可以和延续性动词进行转换。
(1) 转化为“be+形容词/副词等”。
die → be dead