一般现在时与现在完成时
@% g2 a4 P" Z* T' ^( X( \/ C (1)I come from Shanghai．(上海人)
0 g K8 B; ?) A7 Z/ ?% x( C3 E I have come from Shanghai．(从上海来) 9 y8 R' p: e; U8 k: {
(2)You read very well．(强调能力)
2 A! t) x& T4 q: T: z, i You’ve read very well．(强调一次刚完成的动作) 外语学习网5 R. ^! x1 @/ M
(3) I forget．(一时想不起来了)
" H1 Z7 T8 a; u" H3 U' v1 V I have forgotten．(仍没想起来，可能已回忆起来了)
h. y( e' `8 G4 }+ o' Q( l (4) The book is written in simple English．(表状态)
: U+ i( u$ N) \* p, e8 z1 o The book has been written in simple English．(表动态，已用英语写成) " g: F2 C+ {, g9 S ]! }' H. k
(5) Every time I see him，he’s been reading．(两个动作不可能同时进行)．
4 N* A7 Z5 I% }& ? Every time l have seen him，he’s been reading．(强调两个动作同时进行) 8 b+ @6 Z+ ^* I" u2 e
(6) He is gone．(强调状态)He has gone．(强调动作和时间)
7 q/ _5 d* i0 z+ i! j (7) He won’t come till the play begins．(演出开始时)
' ^7 Q, W6 Q6 {7 V He won’t come till the play has begun．(戏已开始)
% M( L5 N5 u1 A% a (8)AfterI leave school，I’11 go to college．(两个动作紧密相接) 4 U0 }/ Z! F- \- X- C
After l have left school，I’ll go to college．(强调毕业后，两个动作可能有间隔) 4 I7 q( \% l# a) |. F
(9) It is a long time since I saw you last．
9 A# k; n$ U4 }- S @) g It’s been a long time since Isaw you last 这两句话一样，后一句是美国英语) . Q+ t# C7 l% M$ c& n) Z* D
(10) Where are you?(在哪儿) Where have you been?(去了哪儿) |
发表于 2012-8-15 23:36:10
