Unit3Safetylesson16.pptVIP

Lesson 16 How Safe Is Your Home? Designer: Qi Ronghui 知识目标：Grasp the new words, phrases and the imperative sentences. 能力目标：The students will be able to give warnings to others with the imperative sentences . 情感目标：The students will feel like talking about how to give a warning to others and To do right things at home and keep safe. 教学目标 词汇 Vocabulary soda n.苏打 salt n.食盐 knife n.小刀 scissors n.剪刀 poison n.毒药 bathtub n.浴缸、盆 baking n.烘焙 burn v.烧伤，烫伤 slip v.滑到 prevent v.阻止，预防 heat n. ＆ v.热，高温，炉灶；加热 certain adj. 某些，某个 themselves pron. 他（她、它）们自己 Read the text and find out the answers to these questions. 1. Is your house a safe place? Why ? 2.Why are the kitchen and the bathroom the most dangerous rooms in the house? Listen to the tape and find what we should do in the kitchen and in the bathroom. 1. Be careful with the fire and heat when you cook. 做饭时当心别烧着或烫着。 Take the chair away. 把这把椅子弄走。 Dont stand on chairs. 不要站在椅子上。 Never leave small children alone in a bathtub. 永远不要把小孩子单独留在浴缸里。 No smoking! 禁止吸烟！ 【探究总结】 祈使句（Imperative） 用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句，祈使句最常用于表达命令。 祈使句因对象（即主语）是第二人称，所以通常都省略。祈使句的动词都为一般现在时，句末则使用句号来表示结束。 Keep off the grass. （勿践踏草坪。——禁止） No parking. 禁止停车。 肯定结构: 1. Do型(即:动词原形(+宾语)+其它成分)。 如:Please have a seat here. 请这边坐。 2. Be型(即:Be + 表语(名词或形容词)+其它成分)。如:Be a good boy! 要做一个好孩子! 3. Let型(即:Let + 宾语 + 动词原形 + 其它成分)。如:Let me help you. 让我来帮你。 否定结构: 1. Do型和Be型的否定式都是在句首加dont构成。如:Dont forget me! 不要忘记我! 　Dont be late for school! 上学不要迟到! 2. Let型的否定式有两种:“Dont + let + 宾语 + 动词原形 + 其它成分”和“Let + 宾语 + not + 动词原形 + 其它成分”。如:Dont let him go. / Let him not go. 别让他走。 3.有些可用no开头,用来表示禁止性的祈使句。如:No smoking! 禁止吸烟!No fishing! 禁止钓鱼! 【学以致用】 1. 请照看好你的包。 _______ _______ _______ your bag. 2. 不要把书放这儿。 _______ _______ your book here. 3. 让我试试。 _______ _______ have a try. 4. 禁止钓鱼。 _______ _______！ 答案：1. Please look after 2. Dont put 3. Let me