英语常用语法：时态一致

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英语常用语法：时态一致
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4 K' Z8 {% E, M& {1 O" _1 q& o6 u　　1)并列谓语的时态一致。
　　【例如】Yesterday I went shopping, bought some books and had dinner at a good restaurant.
: S: D0 ^& V6 X) L5 s9 b　　The soldier looked at him, exchanged glances with his comrade and took out the gun.
　　2)主从复合句的时态一致。
' Y- h3 Q# A/ {2 b　　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。
9 Z$ r) k. \; b# L6 d0 V% b' V　　【例如】
; p8 @( w% Q. P( Q　　I wonder what will happen tomorrow.
+ A# {, Y8 Y) s+ R* b  `, b  G' k　　I wonder what happened to him yesterday.
　　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】
; i  r& _+ h+ n　　He told me he made a big mistake.
6 D1 o5 ~6 L/ y6 F　　He told me he would go to Beijing the next day.
2 T, @; {! J7 J　　He told he had finished his task.
　　The teacher told students that the earth moves around the sun.(客观真理)
  J) `% G# ~! x3 g$ [　　3)定语从句和比较状语从句时态不受主句影响。
( \0 ~* v) `( s6 E　　【例如】
/ c9 y5 U1 V7 P- U, D　　The universityswhereshe is studying was founded in 1950.
　　You now speak English better than you spoke it last year.
' ~3 E0 @- P; L5 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.
4 a* @; k: X2 R6 u4 ^　　I will go to visit the Summer Palace as soon as I arrive in Beijing.
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