人教版英语八年级下册试题since 和 for 的用法(用于现在完成时)
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初中英语学习材料
madeofjingetieji
since 和for 的用法(用于现在完成时)
表示过去已经开始持续到现在的动作或状态常用的时间状语有：for, since, how long, so far, these days等。
1. since :
a).since +时间点①年代②时刻数③一段时间+ago
b).现在完成时：主句(主语+have/has +延续性动词的过去分词)+ since +从句一般过去时
c) It’s +时间段+since +短暂性动词的过去式
d).时间段+has passed +since +短暂性动词的过去式
for +一段时间
练习：
用since和for填空
1) ______ two years 2) _______ two years ago 3) _______ last month
4) ______ 1999 5) _______ yesterday 6) _______ 4 o’clock
7) ______ 4 hours 8) _______ an hour ago 9) _______ we were children
10) _____ lunch time 11) ______ she left here
12). He has lived in Nanjing ________ the year before last.
13). I’ve known him __________ we were children.
14). Our teacher has studied Japanese _________ three years.
15). She has been away from the city ___________ about ten years.
16). It’s about ten years __________ she left the city.
2. for: for +一段时间= since +一段时间+ ago
3. 与时间段连用时，短暂性动词应改为相应的延续性动词。
1) come/go to ------ be at /in 2)leave ----be away from 3)buy ----have
4) borrow /lend -----keep 4)open ---be open 5)close---be closed
6) die---be dead 7) start/begin ----be on 8) join—--be in /be a member of /be a soldier
9) become –be 10) fall asleep ---be asleep 11)catch a cold – have a cold
12) have/has gone to → have been in 13) put on → wear14) finish/end → be over 15) marry → be married
练习：.短暂性转换延续性
1) His grandfather died two years ago .
His grandfather has ____ ____ for two years.
_____two years _____ his grandfather ____.
Two years ____ ____ ____ his grandfather _____.
2) I became a teacher in 2000.
I ________ __________ a teacher for _________ _________.
3) The shop closed two hours ago.
The shop ________ _________ _________ for _________ _________.
4) The door opened at six in the morning.
The door ________ ________ ________ for six hours.
5)He left Fuzhou just now.
He _______ ________ ________ _________ Fuzhou for five minutes.
6)The film began two minutes ago.
The film ____ ____ ____ for ____ ____.How time flies!
7)They borrowed it last week.
They _________ _________ it since __________ __________.
8)I bought a pen two hours ago.
I _________ _________ a pen for ________ __________.
9)They married in 1990.
They ________ _________ __________since _________.
10)The meeting finished at six.
The meeting ________ ______ ______ for six hours.
11)My brother joined the army two years ago.