Eagle386
幼苗
共回答了15个问题采纳率:93.3% 举报
从句可以与非谓语动词互换.
If you check your composition carefully,you can at least avoid some spelling mistakes.
=Checking your composition carefully,you can at least avoid some spelling mistakes.
=Check your composition carefully,and you can at least avoid some spelling mistakes.
Having checked 表示检查的动作在先,避免拼写的错误在后,语意错.应该的检查的时候就可以避免拼写错误,所以用 checking,不用having checked .
1年前
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露华沉香
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如果改为when you check,对不对呢
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Eagle386
可以的,只是由if引导的条件状语从句变为了when引导的时间状语从句,2种情况都可以变成非谓语动词的句子形式。 If you check your composition carefully, you can at least avoid some spelling mistakes. =Checking your composition carefully, you can at least avoid some spelling mistakes. 如果你仔细检查你的作文,你至少可以避免一些拼写错误。 When you check your composition carefully, you can at least avoid some spelling mistakes. =Checking your composition carefully, you can at least avoid some spelling mistakes. 当你仔细检查你的作文,你至少可以避免一些拼写错误。