Using LanguageⅡ公开课教案

1.Ability goals: Enable the Ss.to describe cloning: What is the advantages of cloning? What is the problems or dangers of cloning? What is your opinion of cloning? 2.Learning ability goals: Help the Ss.learn how to describe cloning. (1)Teaching important points How to describe cloning. (2)Teaching difficult points. Help the Ss. analyze the writing techniques of the article. (3)Teaching methods Skimming,task-based method and debate method (4)Teaching aids A recorder, a projector ,multi-media. Teaching procedures and ways Step 1 lead in T:Do you know what is cloning? Let the Ss. look at pictures: Which ones are natural clones and which ones are man-made. Explain how they differ. Step2 pre-reading What benefits can humans gain from cloning？

What problems may arise when humans are cloned？

Step 3 reading skimmimg What’s the text mainly about?

scanning para 1

How do gardeners clone plants? Main idea: Para 2 What two major uses do cloning have? How many femal sheep participate in the cloning of a new sheep. Main idea: Para3 What problems do Dolly have? Main idea: Para4 What the effect of Dolly? Main idea: Para5 Main idea: careful reading (1)give the order of procedure. (2)fill in the chart Problems or dangers of cloning Advantages of cloning (3)discuss What is your opinion of cloning?Give reason. Step 4 Language points 1． Firstly ,gardeners use it all the time to produce commercial quantities of plants. quantities of 许多，大量的。既可修饰可数名词又可修饰不可数名词。

拓展：a large /good/great number of+可数名词复数

a great /good deal of+不可数名词

a great /good many +可数名词复数

many a +单数名词（谓语用单数）

more than one +单数名词（谓语用单数）

2.cloning scientists were cast down to find that Dolly’s illnesses ……

cast down ：discourge 使沮丧

be cast down:feel discourged 灰心，沮丧

词汇：cast about/around for 到处寻找，试图找到

cast away 抛弃，遭船难

cast aside 抛弃，丢一边

cast off 放弃，脱掉

3.On the other hand,Dolly’s appearance raised a storm of objections and …….

objection:不赞成，反对，异议

have an objection to (doing) sth. 反对干某事

raise /voice an objection 提出反对意见

object vi. 不赞成，反对

object to sth./doing sth.反对做…

4．It suddenly opened everybody’s eyes to the possiblility…..

open one’s eyes to sth.使某人明了，对…开了眼界。

5.The fact that she seemed to develop normally……

that 引导同位语从句，说明fact 的内容，that不做成分。

6．Then came the disturbing news that Dolly had become seriously ill. 倒装句型：表方位或方式的副词或介词短语，如：here,there ,now,then,up,down,in,away,off,out,in the room,on the wall等，置于句首时，句子倒装。

将下列各句变为倒装句。

1． The plane flew away. 2． Thousands of Ss.waited in the lecture hall. 3． Your turn to recite the passage comes now. Step5 summary (2m)