一般現(xiàn)在時(shí)與現(xiàn)在完成時(shí)
　　(1)I come from Shanghai．(上海人)
　　I have come from Shanghai．(從上海來(lái))
　　(2)You read very well．(強(qiáng)調(diào)能力)
　　You’ve read very well．(強(qiáng)調(diào)一次剛完成的動(dòng)作) 外語(yǔ)學(xué)習(xí)網(wǎng)
　　(3) I forget．(一時(shí)想不起來(lái)了)
　　I have forgotten．(仍沒(méi)想起來(lái)，可能已回憶起來(lái)了)
　　(4) The book is written in simple English．(表狀態(tài))
　　The book has been written in simple English．(表動(dòng)態(tài)，已用英語(yǔ)寫(xiě)成)
　　(5) Every time I see him，he’s been reading．(兩個(gè)動(dòng)作不可能同時(shí)進(jìn)行)．
　　Every time l have seen him，he’s been reading．(強(qiáng)調(diào)兩個(gè)動(dòng)作同時(shí)進(jìn)行)
　　(6) He is gone．(強(qiáng)調(diào)狀態(tài))He has gone．(強(qiáng)調(diào)動(dòng)作和時(shí)間)
　　(7) He won’t come till the play begins．(演出開(kāi)始時(shí))
　　He won’t come till the play has begun．(戲已開(kāi)始)
　　(8)AfterI leave school，I’11 go to college．(兩個(gè)動(dòng)作緊密相接)
　　After l have left school，I’ll go to college．(強(qiáng)調(diào)畢業(yè)后，兩個(gè)動(dòng)作可能有間隔)
　　(9) It is a long time since I saw you last．
　　It’s been a long time since Isaw you last 這兩句話一樣，后一句是美國(guó)英語(yǔ))
　　(10) Where are you?(在哪兒) Where have you been?(去了哪兒)