1、英语选修8(人教版)第二学时 Learning about Language要 点讲与练1Think about how they differ.(p.10)想想他们有什么不同。词语链接要 点讲与练differ vi.不同，相异differ from sb./sth.与不同，有区别difference n.差异，差别，不同之处different adj.不同的，不一样的，有区别的be different from 与不同，有区别tell the difference between A and B 说出A和B的区别have difference between A and B A与B有区别即学
2、即练要 点讲与练选用上述词语完成下列句子。(1)Things in the world _ each other in a thousand ways.(2)It is easy to _ between steel and iron.(3)French _ greatly _ English in pronunciation.(4)The room looks _ after painted white.differ fromtell the differencediffersfromdifferent要 点讲与练(5)The life of the rich is quite_ that
3、of the poor.(6)The twins _ widely in their tastes.different fromdiffer要 点讲与练2What problems may arise when humans are cloned?(p.10)当克隆人类时，有可能引起哪些问题？词语辨析：arise，rise，raisearise vi.(arose,arisen)庄重用词，已成旧用法，指“上升，出现，发生，造成”。rise vi.(rose,risen)表示事物本身由低处移到高处。可引申为“起床”。raise vt.(raised,raised)把事物从低处移到高处，有时指提高
4、价值、名誉、地位，又可指“抚养，饲养，筹集”。A new problem about Only Child Policy arose in the meeting.在会议上出现了关于独生子女政策的新问题。Before they could start,a mist arose.他们出发之前起了雾。The sun rises in the east and sets in the west.日出东方，落于西方。We raised the price of potatoes.我们提高了土豆的价格。即学即练要 点讲与练用arise,rise,raise的适当形式填空。(1)They _ the fl
5、ag at 9：00 every morning.(2)Everybody expects a _ in wages with the rapid development of economy.(3)Many problems _ if he knew the facts.raiserisewould arise要 点讲与练(4)Mr.White，a generous，helpful，hardworking person，who_early every day，_five homeless orphans in the recent two years.Meanwhile he _10，000
6、，000 yuan to help the Hope Project.Besides,whenever any challenging problem _，he always encourages people _ their hands and to put forward their valuable ideas.As he tries to help to _ the social position of the local working class，he is regarded to be a hero.riseshas raisedhas raisedarisesto raiser
7、aise要 点讲与练3It happens in plants when gardeners take cuttings from growing plants to make new ones.(p.11)当园艺工人剪下植物枝条使之长出新的植物时，克隆就发生了。词语辨析：happen，occur，take place，come about四词都有“发生”之意，均为不及物动词，无被动语态。但有区别。happen是一般用语，词义较广，强调事情发生的偶然性。occur 用法较正式，既可以指自然发生，也可以指有意安排。take place 一般指有计划，按事先安排进行的含义。come about 往
8、往注重事情发生的原因，常与how 连用。The Olympic Games take place every four years.奥运会每四年举办一次。Who can know what will happen in the future？谁能知道未来会发生什么事？Can you tell me how the accident came about？你能告诉我事故是怎么发生的吗？Something unusual did occur the other day.前几天的确发生了不同寻常的事情。即学即练要 点讲与练用happen,occur,take place与come about填空。(
9、1)When did the explosion _?(2)It _ to me that he may have reported the matter to the headmaster.(3)The concert will _ next Sunday.(4)How did the quarrel _?happenoccurredtake placecome about要 点讲与练4.It is a difficult task to undertake.(p11)这是一项很难完成的任务。词语链接要 点讲与练undertake v.着手，承担，从事undertake to do sth.
10、promise to do sth.答应/承诺做某事即学即练要 点讲与练完成下列句子。(1)Our biology teacher required us _(承担一些简单的实验).(2)As a policeman,I must _(承担那项危险任务)(3)The president _(答应不公开名字)of the people involved.to undertake some simple experimentsundertake the dangerous taskundertook not to publish the names要 点讲与练(4)The government _
11、(答应尽快查清通货膨胀的原因)undertook to find out the cause of inflation要 点讲与练5But at last the determination and patience of the scientists paid off in 1996 with a breakthroughthe cloning of Dolly the sheep.(p.11)但是决心和耐心使科学家们最终于1996年收获了突破性的成果克隆羊多莉。词语链接要 点讲与练pay for 付款pay off ones debt 还清债务pay off 某事是值得的，付清工资后解雇要
12、 点讲与练即学即练完成下列句子。(1)Ill give you double _ workings overtime.(2)Youll have _ your old loan before being allowed a new one.(3)All his efforts _ when Tom took the first place in the writing competition.pay forto pay offpaid off要 点讲与练6Then came the disturbing news that Dolly had become seriously ill.(p.1
13、2)接着传来了多莉病重的坏消息。要 点讲与练词语链接disturbing adj.搅乱，打扰，令人烦恼的disturbed adj.烦恼的，受打扰的disturbance n.打扰，不安，骚乱Please dont disturb the sleeping child.请别打扰那睡着的孩子。Every time he entered the room,he was quiet so as not to disturb his mother.每次进屋他都静悄悄的，以便不打扰他的妈妈。要 点讲与练The disturbing developments drew the attraction of
14、the government.使人感到不安的事态发展引起了政府的注意。The teacher told him to leave as he was a disturbance to the other students.因为他干扰了其他学生，所以老师叫他出去。要 点讲与练7Cloning scientists were cast down to find that Dollys illnesses were more appropriate to a much older animal.(p.12)克隆科学家沮丧地发现多莉的病更容易发生在年老的羊身上。cast v.(cast,cast)投，
15、掷，抛要 点讲与练思维拓展观察下列各句中画线词的意思。(1)The fisherman cast_his_net into the river.渔民在江上撒网。(2)The tragedy cast_a_shadow on their lives.这个悲剧在他们的生活中投下了一片阴影。(3)Every citizen over 18 years old in our country has the right to cast_a_vote.我们国家18岁的市民都有权投票。要 点讲与练be/feel cast down 沮丧，使沮丧，使气馁(常用于被动语态或作表语)cast aside 抛弃，排
16、除cast off 解缆，放(船)cast out 把某人赶走，逐出要 点讲与练即学即练A选用上述词语完成下列句子。(1)He is not easily _，as he is active and optimistic，I think he will try to _any difficulty that he meets.(2)After the scandal,he was _ of the company.(3)The students _ when they knew they failed in the final examination.cast downcast asideca
17、st outwere cast down要 点讲与练词语链接be appropriate to.适合于的，与相称的be appropriate for 不适合某种场合要 点讲与练即学即练B选用上述词语完成下列句子。(1)This kind of TV programs _ children under 10.(2)The dress _ sports meet.(3)Jeans _ a formal party.is not appropriate tois not appropriate forare not appropriate for要 点讲与练8On the other hand,D
18、ollys appearance raised a storm of objections and had a great impact on the media and public imagination.(p.12)另一方面，多莉的出现引起了一阵强烈的反对，对媒体和大众的想象力产生了极大的影响。要 点讲与练词语链接objection n.不赞成，异议；反对，厌恶objection to sth.对某事反对(objection是名词)objection to doing sth.反对做某事object to sth.反对某事object to doing sth.反对做某事He has a
19、 strong objection to carrying out the plan.他强烈反对实施这项计划。Objections to the plan will be welcomed sincerely.欢迎对该计划提出异议。要 点讲与练即学即练A完成下列句子。(1)My main _(反对)grandmother getting up so early is that its easier for her to catch a cold.(2)Many parents _(反对孩子看太多电视)(3)Many students _objection toobjected to their
20、 children watching TV too muchhave a strong objection to having classes at weekends/object to having lessons at weekends要 点讲与练(反对周末上课).(4)I _(反对)he was too young to join the army.objected要 点讲与练词语链接have a strong/great impact on.对有巨大影响make a strong/great impact on.对有巨大影响要 点讲与练即学即练B完成下列句子。(1)Martin Lut
21、her Kings speech _(对在场的每个人都产生了巨大的影响).(2)Monkey King(西游记)_(对其读者有极大的影响).made a great impact on everyone presenthas a great impact on readers要 点讲与练9.Some began to reform their legal systems and forbade research into human cloning.(p.12)有些国家开始修订法律明令禁止进行克隆人类的研究。要 点讲与练词语链接forbid v.(forbade/forbad，forbidde
22、n)禁止，不准forbid sb.to do sth.禁止某人做某事forbid sth.禁止某事forbid doing sth.禁止做某事要 点讲与练即学即练完成下列句子。(1)Cigarettes _(不许卖给)to people under the age of 16.(2)禁止乱扔垃圾_(3)Students_(不准玩手机)during the class.(4)Readers _(不许)to take books out of the library without permission.are forbidden to sellLittering around is forbid
23、denforbid playing mobilesare forbidden要 点讲与练(5)Schools _(严禁学生打架)in the schoolyard.forbid students to fight要 点讲与练10.Dollys death,like her birth,was bound to raise worries.(p.14)多莉的死像它的出现一样必定引起担忧。要 点讲与练词语链接be bound to 注定做，有义务做be bound for.去；准备去要 点讲与练即学即练完成下列句子。(1)The weather _(一定会变好)at Spring Festival
24、.(2)You _(一定能考试及格)，if you study hard.(3)你要去哪儿？_ is bound to get betterare bound to pass the examinationWhere are you bound for?要 点讲与练11.Scientists believe human cloning is just a matter of time but the assumption that human clones have already been born hasnt been proved yet.(p.14)科学家们相信人类的克隆只不过是时间问
25、题，但是克隆人已经问世的说法还没有被证实。要 点讲与练词语链接assume v.假定，假设，认为assumption n.假设，设想要 点讲与练即学即练完成下列句子。(1)The theory is based on_(一系列的设想)(2)People tend to _(妄加臆断)about the rich when he/she died suddenly.(3)It is reasonable _(假设我们的学习越来越好).a series of assumptionsmake assumptionsto assume that our study will become better and better.要 点讲与练要 点讲与练即学即练将下列句子译成英语，并分析其结构。(1)工厂领导的决定，即三分之二的人将下岗，令人非常失望。_要 点讲与练(2)有些同学起得很早，并在食堂吃了早餐，但是，另一些同学，比如李梅和张文，却不愿吃食堂提供的廉价食品。_
