2015必备的九年级英语知识点复习:since和for
成绩的提高是同学们提高总体学习成绩的重要途径,大家一定要在平时的练习中不断积累,小编为大家准备了2015必备的九年级英语知识点复习:since和for,希望同学们不断取得进步!
(1) since用于完成时态,既能用作介词,也能用作连词,后常接时间点,意思是“自从”。
He has been a worker since he came into this city.
自从他来到这个城市,他就是工人了。
I have never seen him since we last met in Shanghai .
自从我们上次在上海见过之后,我再也没见过他。
since作连词,还有“既然”的意思。
Since you are interested in it, just do it. 既然你对它感兴趣,那就做吧。
You can have fun now since you’ve finished your work.
既然你已经做完了功课,就开心玩会儿吧。
(2) for用于完成时,用作介词,后常接一段时间,意思是“经过…”。
I have learned English for five years.我已经学了五年英语了。
They have waited for you for 30 minutes.他们已经等了你三十分钟了。
for也可以用作连词,但意思是“因为”。
They missed the flight for they were late.他们由于完到了而误了航班。
He fell ill for many reasons.他由于多种原因病倒了。
以上就是常梦网为大家整理的2015必备的九年级英语知识点复习:since和for,怎么样,大家还满意吗?希望对大家的学习有所帮助,同时也祝大家学习进步,考试顺利!
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