大家想知道历年真题吗?出国留学网成人高考栏目为大家带来“2017成人高考高起点英语语法错用解析：虚拟语气”，祝大家都能取得优异的成绩，希望此文能让大家有所收获。
1、中文：我要是你，我不会那么做。
(误)I shouldn"t do that if I was you.
(正)I shouldn"t do that if I were you.(表示与现在事实相反的虚拟语气不能用was，只能用were.)
2、中文：要是我父亲现在在这里，他会告诉我该做什么。
(误)If my father were here now，he will tell me what to do.
(正)If my father were here now，he would tell me what to do.(表示与现在事实相反的虚拟语气中，主句的助动词只能用would，might等过去时。)[环球网校成人高考频道整理虚拟语气误用]
3、中文：要是我知道她的电话号码，我就会给她打电话了。
(误)If I knew her telephone number，I would have called her.
(正)If I had known her telephone number，I would have called her.(表示与过去事实相反的虚拟语气中，条件从句的动词要用过去完成时。)
4、中文：要是昨天没下雨她也许会来。
(误)If it had not rained yesterday，he might come.
(正)If it had not rained yesterday，he might have come.(表示与过去事实相反的虚拟语气中，主句的动词要用助动词的过去时might，could等+HAVE+过去分词。)
5、中文：我不认为我会失败，但要是我失败了，我会再努力。
(误)I don"t think that I shall fail. But if I failed，I would try again.
(正)I don"t think that I shall fail. But if I should fail，I would try again.(表示与将来事实相反的虚拟语气中，条件从句的动词用should加原形动词。)
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