英语常用语法：时态一致

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英语常用语法：时态一致

& v1 v( v! d4 o* |1 o- `: ~- P　　1)并列谓语的时态一致。
1 s5 T. P) Q2 J" y4 h7 K( v　　【例如】Yesterday I went shopping, bought some books and had dinner at a good restaurant.
; ~8 ^3 N1 _2 b" J" D% X　　The soldier looked at him, exchanged glances with his comrade and took out the gun.
9 O8 }( h4 J# a　　2)主从复合句的时态一致。
　　a)主句为现在时、将来时、现在完成时，宾语从句谓语动词时态按情况而定。
　　【例如】
, x0 [( ^( b  W7 N" ?2 W( t' y* k, ~　　I wonder what will happen tomorrow.
5 t: Q. y& U& W# {  j4 {# Y　　I wonder what happened to him yesterday.
& E. R  Z; K0 ?　　I wonder what is happening now outside.
　　b)主句为过去时态，宾语从句一般用过去时态。如果宾语从句说明的是客观真理，用一般现在时。
　　【例如】
　　He told me he made a big mistake.
% O- Q, `1 T; c　　He told me he would go to Beijing the next day.
　　He told he had finished his task.
+ N; f) @  O7 _7 W1 s8 D( \　　The teacher told students that the earth moves around the sun.(客观真理)
- J0 I6 D( A2 |/ f　　3)定语从句和比较状语从句时态不受主句影响。
% H7 f( p, z1 J, Q5 u1 }- ~　　【例如】
　　The universityswhereshe is studying was founded in 1950.
( z7 T- u, F( l5 G& X1 d4 o% s　　You now speak English better than you spoke it last year.
3 M/ G7 O* k2 `" l2 A$ s8 R　　4)时间和条件状语从句中，常用现在时表示将来。
　　【例如】
　　We will cancel our trip if it rains tomorrow.
　　I will go to visit the Summer Palace as soon as I arrive in Beijing.

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