高中英语新课标必修五unit 1知识点Great scientists一、知识点1. Which scientist discovered that objects in water are lifted up by a force that heips them float?哪位科学家发现了水里的东西被帮助以浮动的力举起？in water定语，修饰objects, a force之后又跟了个that引导的定语从句。lift up 拿起，举起，升起He lift up his little son, and mounted him on the horse. 他把小儿子举起来，让他骑在马背上。To call back the boy from a distance, the father had to lift up his voice.为了把儿子从远处叫回来，父亲不得不提高嗓子喊。2. Who used peas to show how physical characteristics are passed from parents to their
