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英语常用语法:时态一致* n, v9 b2 W; X
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1)并列谓语的时态一致。
l+ Q+ e& N$ t 【例如】Yesterday I went shopping, bought some books and had dinner at a good restaurant.: T' C% S9 U( z' O
The soldier looked at him, exchanged glances with his comrade and took out the gun.
$ D6 P l' G+ V 2)主从复合句的时态一致。 q) Y: l; \9 O0 @( M9 Y
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。$ F) h/ O9 J6 p! e6 q. g0 N
【例如】# q5 t, y7 m) I$ S1 C- b) }' x
I wonder what will happen tomorrow. R; _% e q- H, P
I wonder what happened to him yesterday.3 X! _: ]7 s* f
I wonder what is happening now outside.; s/ u4 |" I- T
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。
/ ~3 N2 U4 G3 Q5 d7 u. b 【例如】; |( H0 [0 {, X0 o4 g/ v8 j
He told me he made a big mistake.5 s* N" y+ u6 ?- F
He told me he would go to Beijing the next day.
4 d- u$ H6 o- h7 j2 h8 p He told he had finished his task.
, j! r- Z) b0 d/ i# s The teacher told students that the earth moves around the sun.(客观真理)5 Y& A9 l! P) ?. ~
3)定语从句和比较状语从句时态不受主句影响。! P/ b# o, B5 D3 m( [7 _! f
【例如】: U& z* d4 \1 M/ f1 X% _: \; u
The universityswhereshe is studying was founded in 1950.$ q$ o0 @) H4 U, q7 K5 g
You now speak English better than you spoke it last year.. ~% ?) L5 L u1 y( b& y
4)时间和条件状语从句中,常用现在时表示将来。
; {. S% B) y7 f7 h9 X% T 【例如】
9 w+ J8 I. t5 @9 e We will cancel our trip if it rains tomorrow.
. V, z) u+ k, V! U1 x I will go to visit the Summer Palace as soon as I arrive in Beijing.
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