外研版新标准英语八上M12U1的主要内容是关于如何做急救。对话中营造的场景很自然地导入了must, can, could表示推测的用法以及祈使句的肯定式和否定式。了解一些实用的急救方法不仅可以帮助学生在关键时刻自救，而且还能提高其救助他人的意识和能力。
（1）first aid 急救（2）basic medical help基本的医疗救助（3）give sb. sth.=give sth.to sb.给某人某物
2.A boy is lying at the bottom of the stairs.一个男生正躺在楼梯下面。at the bottom of...在......的底部
3.He isn't moving or making a sound.他不动也不发出声音。make a sound发出声音
4.He is in pain.他很疼。in pain 处在疼痛之中
5.What can we do to help him?我们该怎么帮他那？to help him是动词不定式做目的状语To catch the first bus, she gets up early.
6.First of all, find out what's wrong with him.首先，弄清楚他到底怎么了。
（1）first of all首先（2）find out 弄清楚；查明；找出（3）What's wrong with...?=What's the matter with...?=What's the trouble with...?......怎么啦?
7.But he could have trouble hearing you or speaking to you.但是他有可能难以听到你或者和你说话。（1）have trouble doing sth.做某事有困难（2）speak to...和......说话
8.Shout for help? Call 120?喊人来帮忙？或者打120？ （1）shout for help大喊求助（2）call 120/sb.拨打120/给......打电话
9.What should we do before help arrives?在救援到来之前，我们应该怎么做？arrive到达，动词，后面可以不接地点She arrived by plane the day before yesterday.arrive at+小地点；arrive in+大地点
10.Make him comfortable.确保他不受凉。make sb.+adj./do sth. 使某人处于某种状态/使某人做某事He made the boy work eight hours a day.
11.Lift him up and sit him on a chair?把他抬起来，让他坐到椅子上。lift up 举起；抬起，代词放中间（2）sit sb.on the chair让某人坐在椅子上
12.No, that could be harmful.不行，这样做可能伤害他。be harmful to...=do harm to...Smoking is harmful to our health.
13.You could drop him and hurt him even more.你有可能会摔着他，使他的伤势加重。
even 甚至，可以放在比较级前，类似用法的词还有：much, a little, a bit, a lot, far, any等 This book is even more expensive than that one.
14.You did some basic medical training.你接受过基本的医疗培训。basic medical training基本医疗培训
15.Make sure he's warm.Cover him with a coat.确保他身上暖和，给他盖件外套。
（1）make sure+句子，确保；保证......（2）cover...with...用......盖......Please cover the desk with some pieces of paper.