760 不定式省去to后的动词有哪些情况
◎ 为了避免重复句中上文已出现过的动词,可以单独使用不定式符号to,而省略后面的动词。有下面几种情况。
① 在hope,like,want,need,love,hate,plan,try,wish,forget,decide 等动词后,省略前面已出现过的动词。
I asked him to come but I he didn't want to。我要他来,但是他不想来。(省略come)
I meant to go but forgot to. 我本想去的,可是忘了。(省略go)
Though he had no time to go travelling,yet he hoped to. 虽然他没有时间去旅游,但他希望去。
They have not yet built the bridge,but they plan to. 他们还没有建造那座桥,但他们计划建造。
It's difficult to swim across the river,but I'll try to. 游过这条河不容易,但我要试一试。
② 在used to,ought to,have to等词组后的动词可省去,以免重复。
A:Do you often go fishing now?你现在常去钓鱼吗?
B:No,but I used to. 不,但我过去常去钓鱼。
I didn't mean to take a taxi but I had to,because it was raining hard. 我本不打算坐出租车的,但不得不坐,因为天下大雨了。
③ 在be ready to,be glad to,be able to,be going to,be afraid to 等短语后,可省略前面已出现过的动词,以避免重复。
I haven't read the novel yet,but I'm going to. 我还没读过那本小说,但我打算读。
I have no chance to help her but I'm ready to. 我没有机会帮助她,但我乐意帮助她。
The boy wants to climb up the tree,but he is afraid to. 这孩子想爬上那棵树,但又害怕。