问与答

摘要

<正> 问: 下面两句有何差别?意思是否一样? 1.She could sing beautifully when she wanted to. 2.She could sing beautifully if she wanted to. 答:第一句指过去的事.意思是她的嗓子很好,但不一定每次都能发挥得好。这句根据一定的上下文也可理解为有时她想唱好,有时因某种原因不想好发唱。如: She could sing beautifully when she wanted.But the problem wasshe didn’t want to sing beautifully very often. 第二句指未来的事.意恩是她一直唱得不好,但如努力也可能唱好.根据