公开课2 (2).doc

高中英语阅读课公开课新课标人教版必修3Unit 4 Astronomy：the science of the stars 灵丘一中 冯丽琴Teaching aim: Students can grasp the important words and expressions and use them in their daily life.Teaching important point:Learn and master the important words and expressions as follows：theory, violent, in time, unlike, harmful, lay eggs, exist, give birth to, in ones turn, prevent.from, puzzle, pull, cheer up, now that, break out, watch out.Teaching difficult point:Students can analyze the following sentences：1. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.2.This disappearance made possible the rise of mammals on the earth.3. So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.Teaching methods:1. Revision can help students remember what they have learned.2. Language study can help students grasp new knowledge of the unit.Teaching aids:A computer and a blackboard.Teaching procedure:Step1. Revision: Translation: 1. 目前的教育制度需要改进。 2. 你能把这些名字与这些行星搭配起来吗？ 3. 我必须承认我对现代绘画感兴趣。Step2. Language points:1.the universe began with a “Big Bang” that threw matter in all directionsto begin with=to start with1)“以为起点；开始做 ” 译：认识从实践开始_2)可单独用，表示“首先；第一；起初；最初”。在句中做时间状语。Eg. To begin with, I couldnt understand every word.2.The earth became so violent that it was not clear whether the shape would last or not.1)分析此句中成分2)violent(adj.) 汉译：_ 副词形式_ 名词形式_3.They were in time to produce carbon, nitrogen, water vapor and other gases which were to make the earths atmosphere.In time “及时；迟早；终于”Eg.You will get used to the weather in NanJing in time. 译_相关链接:on time 准时 ahead of time 提前 all the time 一直；始终；总是 at a time 依次；逐一；每次 at all times 总是；随时；永远 at the time of 以为背景 at the same time 同时 at times 有时；偶尔 behind the times 落伍；过时 4.It was not immediately obvious that water was to be fundamental to the development of life.本句结构：It is + adj./n.+ that-clause/to do sth.It is no wonder that he has passed the exam.译_他能在三天内完成这项工作是不可能的。译_5.This produced a chain reaction, which made it possible for life to develop.本句结构：make +it +宾补(adj./n.)+(for sb.) to do sth./that-clause.用于此结构的动词还有：find, feel, think, get等eg.Sally has made it clear that she would leave the company.译_We found it important to pay attention to the pronunciation.译_你觉得他有可能通过面试吗？译_6.Others,called amphibians, were able to live ton land as well as in the water.as well as “(除之外) 也；既又”Eg. Im learning French as well as English. 译_他既种菜也种花。_.7.They laid eggs too and existed on the earth for more than 140 million years.exist（vi）汉译_ 名词形式_8.Why they suddenly disappeared still remains a mystery.Remain 1) 系动词，“仍然是，保持不变”，后接名词，形容词，分词，介词短语，不定式（要用被动形式。常用用法:remain to be done/seen/said 待以后去做/去看/去说）eg.I asked her a question but she remained silent.我问了她一个问题，但她保持沉默。The death of the innkeeper still remains a mystery.客栈老板之死仍然是个迷。The temple remains standing there after the floods.译：_The door remains locked for half a year.译：_The African people remain in great poverty.译：_It remains to be seen whether what you said is true.译：_2)不及物动词，“剩下，剩余；留下，逗留 ”Nothing remained in my room except the old piano.译：_3) remaining (adj.) “剩下的，剩余的” 翻译：剩余的钱_4）其名词形式为remains，意为“剩余物；（古建筑等的）遗址” eg.Linda drank the remains of her coffee.译：_The remains of the ancient temple are worth seeing.译：_5)习惯搭配a. remain in 逗留在某地；呆在家里We remained in because of the heavy rain.译：_b. remain on 停留在.上 His English remains on oral level.译：_c. remain up 超过就寝时间仍然不睡The boy remained up because he was looking forward to his mothers coming back.译：_9. These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them. give birth to 分娩；产生 eg. Yesterday she gave birth to a beautiful baby girl.译：_10. Thus they have, in their turn, become the most important animals on the planet. in ones turn 轮到某人 eg. Tom will be on duty in his turn tonight. 译：_ 相关链接：by turn 轮流in turn 依次Its ones turn to do sth. 轮到某人做某事11They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.prevent.from 阻止某人做某事 eg.Nothing will prevent us from going there.译：_Step3. DiscussionThe students discuss the text and find out their problems in class . The teacher should help them solve some of their problems if time permits.Step4. Ho