句子反复磨耳朵（中级续）421-430

听前提示一、三遍英文，一遍中文，再一遍英文。二、从听懂的词入手，理解句子含义。三、根据中英文意思，听不懂的多听几遍。原文421.The teacher has a great influence on his pupils.这个教授对他的学生有很大的影响力。422.It is true that she is pretty, but she is selfish.她确实很漂亮，但她很自私。423.Do I have to take off my shoes here?在这里我必须脱鞋吗?424.You remind me of a boy l used to know.你让我想起我过去认识的一个男孩。425.As far as I know, he did nothing wrong.据我所知，他没做错任何事。426.Mary is not poor. On the contrary, she is quite rich.玛丽不穷，相反，她相当富裕。427.Can you imagine what the 21st century will be like?你能想象21世纪会是什么样吗？428.As long as you keep quiet, you can stay here.只要你保持安静，你可以留在这里。429.My father is too busy to take a walk.我父亲太忙，不能去散步。430.Some babies learn to swim even before they are one year old.有些宝宝甚至在一岁之前就学习游泳了。