Unit 3 Lesson 16（知识精讲+分层练习）-【帮课堂】2022-2023学年九年级英语全册同步精品讲义（冀教版）

Unit3Safety Lesson16 How Safe Is Your Home？ 知识点睛jing 一、Be careful with scissors and knives! Many people cut themselves in the kitchen.当心剪刀和菜刀！许多人在厨房里切伤自己。 【精讲】 be careful/careless with/of/about 对某事细心/粗心 【拓展】 例句：Be careful of that sinister man，He is dangerous. 留意那个阴险的人，他很危险。 例句：You are careful with my cat。你对我的猫很关心。 练一练 仔细记笔记，这对你的学习有帮助。 ，and it is helpful for your study.(2018 葫芦岛中考） 二、Safety tips for preventing accidents in the kitchen防止厨房事故的安全提示 【精讲】prevent “阻止”。prevent...(from)doing sth.阻止……做某事 【拓展】keep... from doing... 意思是“阻止、防止……做某事”,它与prevent... from doing...和stop... from doing...同义。其中,prevent... from doing...和stop... from doing...中的介词from可以省略(stop 和 prevent用于被动语态时,其后的from 不能省略),但keep…from doing...中的from不能省略。如果省略了from, 那么keep... doing...的意思就成为“使……一直做……”。 例句：We should prevent people from killing wild animals.我们应该阻止人们猎杀野生。 练一练 1．He is wearing his sunglasses to himself from the strong sunlight. A．prevent B．stop C．keep D．Protect 三、Don't stand on chairs.