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用if改写以下句子1.After you have finished eating you can leave the

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/04/29 04:19:26
用if改写以下句子
1.After you have finished eating you can leave the table.2.One has studied hard,and then the exam is not difficult for him.我知道答案是什么,不是主将从现.请英语语发好的童鞋赐教,要说出答案,3Q
为什么不是主将从现?
1.If you have finished eating you can leave the table.这是一个时间状语从句的复合句,根据句意可以改写为包含条件从句的复合句.
2.If one has studied hard,the exam is not difficult for him.这是一个表示因果的并列句,可以改写为条件从句.
在时间状语从句和条件从句中,为了强调从句谓语动词的影响,尤其是给人提出建议忠告时常用现在完成时代替一般现在时.如:When the bus has stopped ,you can get off .