英语常用语法：时态一致

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英语常用语法：时态一致

　　1)并列谓语的时态一致。
  k) \! {! y. A　　【例如】Yesterday I went shopping, bought some books and had dinner at a good restaurant.
　　The soldier looked at him, exchanged glances with his comrade and took out the gun.
! k0 O0 X% m2 l+ {　　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】
# ~2 U  m9 k) {1 `　　I wonder what will happen tomorrow.
　　I wonder what happened to him yesterday.
# b) [' W7 M5 {5 C& ?) N( x) B　　I wonder what is happening now outside.
' O- s  h. f$ u( m/ M$ ]　　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。
7 u0 o! c$ \9 _2 M2 T　　【例如】
　　He told me he made a big mistake.
: N* b1 s( P2 M9 c　　He told me he would go to Beijing the next day.
　　He told he had finished his task.
- Z7 k  E# H9 {. F　　The teacher told students that the earth moves around the sun.(客观真理)
8 S9 S/ r3 G% U, R4 ~　　3)定语从句和比较状语从句时态不受主句影响。
9 C5 Q0 o  e9 ~; m: p" e( N　　【例如】
# o* L8 j) e+ `. \- h　　The universityswhereshe is studying was founded in 1950.
: d8 G: T3 j- r1 L; o; [; {* l　　You now speak English better than you spoke it last year.
　　4)时间和条件状语从句中，常用现在时表示将来。
* Q6 _* ]4 N, a3 ~　　【例如】
$ a2 Y1 ]- a' s3 d　　We will cancel our trip if it rains tomorrow.
　　I will go to visit the Summer Palace as soon as I arrive in Beijing.
" _& ^9 Z, M" L  u- G9 b
4 H7 D- N, c" k1 p" r. h

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