第10讲 Unit5 First Aid-【寒假自学课】2023年高二英语寒假精品课（人教版2019选择性必修第二册）

第10讲 Unit 5 First aid 【学习目标】 1． 复习Unit5重点单词、短语、句型 二．复习Unit5语法（动词的-ing形式） 2． 写作（事故处理） ( 课内知识回馈 ) 一 （课文改编版） The skin, 1. _______ acts as a barrier 2._________ disease, toxins and the sun’s harmful rays, is 3._______essential part of your body. So if your skin gets burned，it can lead to very serious injuries. 4._______（depend）on the 5._________ (deep) of skin damage. Burns 6.__________(divide) into three types. Firstdegree burns affect only the top few millimetres of the skin. Seconddegree burns go 7. _______ the top layer of the skin. They are serious and take a few weeks 8. ________ (get) better. Thirddegree burns affect every layer of the skin. They cause very severe internal 9.________ (injure)． The cool water stops the 10._________ (burn) process and reduces the pain and swelling. Remove any clothes using scissors 11.________ necessary, unless you see the fabric 12.________ (stick) to the burnt skin. 13.________ (apply) oil to the injured areas is a bad idea, as it will keep the heat and may cause 14.________ (infect)．If the victim is suffering 15._________ second or thirddegree burns, he/she needs to be taken to the hospital at once. 练习 一 The skin is 1._______essential part of your body which acts 2._______ a barrier against disease，toxins，and the sun’s rays. It also helps control your body temperature，prevents your body 3.________ losing too much water, 4._______(warn) you when things are too hot or cold，and gives you your sense of touch. As you can imagine，getting burnt can lead to very serious injuries.The first and most important step in the 5._______(treat) of burns is giving first aid. You can get 6._______(burn) by a variety of things：hot liquids，steam，fire，radiation，the sun，electricity，acids，or other chemicals. Burns are divided into three types，which 7. _______(call) first，second，and thirddegree burns, 8._______(depend) on the depth of skin damage. Different degree 9._______(burn) can be treated 10._______(different)．Let’s keep these things in m