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。
　　【例如】Yesterday I went shopping, bought some books and had dinner at a good restaurant.
. i1 s6 V" s# T/ a　　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。
　　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】
　　I wonder what will happen tomorrow.
　　I wonder what happened to him yesterday.
　　I wonder what is happening now outside.
1 Z2 @6 k4 {2 ~" A　　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】
8 y) j! v6 R7 F- R　　He told me he made a big mistake.
　　He told me he would go to Beijing the next day.
　　He told he had finished his task.
$ _! F  `+ f. z+ w　　The teacher told students that the earth moves around the sun.(客观真理)
　　3)定语从句和比较状语从句时态不受主句影响。
$ H5 G" C8 |- q2 Z( D　　【例如】
　　The universityswhereshe is studying was founded in 1950.
　　You now speak English better than you spoke it last year.
% q# R) V0 u) D9 M; ], [　　4)时间和条件状语从句中，常用现在时表示将来。
　　【例如】
3 ^3 g1 \3 i# T7 L　　We will cancel our trip if it rains tomorrow.
　　I will go to visit the Summer Palace as soon as I arrive in Beijing.
; b- U$ p. U8 j3 B9 `9 H

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