上海版牛津初中英语课件7BM1 Unit 1(period 1).ppt

the natural elements 自然 环境,1 controlling fire控制火灾,injured,injured ndd adj. “受伤的“ he has been injured. 他受伤了。 his arm was injured. 他的手臂受伤了。 who else was injured? 还有谁受伤？,cigarette ends,cigarette,alice and peter are going to do a project about fire . miss gou has given them some questions to think about . - alice , ive got some information on my computer about fire. - great .,be going to,has given,ive got,some questions for you to think about.,1 how did early men make a fire?,2 what did early men use fire for ?,3 nowadays , do people use fire to cook food?,4 what do workers use fire for in factories?,5 what do people do to rubbish in some places?,6 what may happen if we are not careful with fire?,7 what kind of people may cause hill fires?,1.the natural elements 天然要素 ;自然环境 2.controlling fire 控制火情 3.be injured 受伤 4.cigarette ends 烟头 5.do a project about 做一个关于的专题研究 6.think about 考虑 7.get some information about 得到关于的信息 8.early men 早期人类,9.make a fire 生火 10.use to do sth. = use for doing sth. 使用做某事 11.cook food 做饭 12.be careful with 对小心 13.what kind of 什么样的 14.hill fires 山火 15.on the screen 在屏幕上 16.on the next page 在下一页 17.the answers to the questions问题的答案,information about fire fire can be very useful , but it can also be very harmful . be careful when you start a fire.,millions of years ago , early men used a stick , a large piece of wood and dry leaves to make a fire.,use sth. to do sth.用某事做某事,early men found fire very useful . at first , they ate raw meat. then they discovered fire and started eating cooked food.,at night , they used fire to protect their families from the wild animals .,they also used fire to give them light and keep them warm in winter.,find- found eat-ate discover-discovered use-used,nowadays , people do not only use fire to cook food or boil water . in factories , workers use it to melt metals.,“不仅”,metals are melted so that they can be made into different shapes.,so that 以便于.,melt- are melted make-can be made,一、语态概述 英语中有两种语态：主动语态和被动语态。 主动语态表示主语是动作的执行者。 例如：many people speak chinese. 被动语态表示主语是动作的承受者，即行为动作的对象。 例如：chinese is spoken by many people.,二、被动语态的构成 (以speak为例) “助动词be及物动词的过去分词“ 一般现在时：amisarespoken 一般过去时：waswerespoken 一般将来时：willshall bespoken 现在进行时：amisare beingspoken 过去进行时：werewas beingspoken 现在完成时：havehas beenspoken 过去完成时：had been + spoken （情态动词be过去分词）,三、被动语态的用法 (1)不知道或没有必要说明动作的执行者是谁。 some new computers were stolen last night. this bridge was founded in 1981. (2)强调动作的承受者，而不强调动作的执行者。 this book was written by him. your homework must be finished on,四、主动语态变被动语态的方法 (1)把主动语态的宾语变为被动语态的主语。 (2)把谓语变成被动结构(be过去分词) (3)把主动语态中的主语放在介词by之后作宾语，将主格改为宾格。 all the people laugh at him. he is laughed at by all the people.,“被”,factory workers also use fire to make glass. have you ever seen workers blowing glass?,they make bottles and vases of different sizes and shapes by blowing hot glass. first , the workers put some hot glass onto one end of a long metal pipe. then they start blowing from the other end of the pipe.,芬兰湖泊花瓶aalto传奇揭密,为了让吹玻璃能够顺利完美，事前必须先用湿纸把玻璃尽量塑成圆筒形状。,由吹管向玻璃吹气，吹气必须均匀而稳定，玻璃才会漂亮。,先在热管上压出一点形状，方便进模。,把吹一部分的玻璃放进模具(以前是木制模具，现用钢材代替)，再度吹气，把aalto 形状做出来。,由师傅检查已经冷却的aalto花瓶是否形状正常，之后送去切割切割,完后，再度回火，让玻璃的利边软化。,由人工一个一个的修边，确保切割线漂亮，同时不割手，才算大工告成。,in some places of the world , people use fire to burn rubbish . every day, they collect and burn a huge amount of rubbish.,fire can destroy everything . we have to be careful when we use fire. people may lose their lives and homes or they may be seriously injured in a fire.,every year , hill fires burn a lot of trees . this is because there are many careless and thoughtless people . careless people forget to put out their barbecue fries . thoughtless people drop burning cigarette ends everywhere.,这个世界上最大的烟头矗立在伦敦trafalgar广场的中间，有9米高。因为伦敦早前颁布了禁止在室内公众场 所吸烟的法规，造成了伦敦街道上到处是丢弃的烟头，这个大烟头起着广而告之的作用，就是提醒人们注意环境卫生，不要随意丢弃烟头。最近国内很多城市也颁布 了禁烟令，禁止在公共场所吸烟，估计将来也有立这么一个大烟头的必要。,p2,1 how did early men make a fire? 2 what did early men use fire for? 3 nowadays , do people use fire to cook food?,they used a stick , a large piece of wood and dry leaves to make a fire . they used fire to cook food, to protect their families and to give them light and keep them warm in winter. yes, they do .,4 what do workers use fire for in factories? 5 what do people do to rubbish in some places?,they use it to melt metals and make glass . they use fire to burn rubbish