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Uint 4 Cyberspace Period Ⅱ课时精品课件(北师大版必修二).ppt

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1、Period Warmup & Tomorrows World,教学目标 (1)熟记学案中所列出的单词和短语。 (2)通过对学案中重点单词和重点短语的学习,让学生能够正确理解和使用这些单词和短语,并能够运用这些词语造句。,(3)通过对这些词汇的理解能够更深层次的理解课文,并通过课文加深对这些词汇的理解,更加熟练的运用这些词汇。 (4)通过对语法的教学让学生能够理解和运用这些语法知识,能够熟练运用一般将来时。 (5)听懂课文中所给出的听力材料。 教学地位 词汇是构成句子的最小单位,在英语学习中起至关重要的作用,所以理解和记忆英语单词和短语是英语学习的重点所在。本课时的语法一般将来时,是对初中已学

2、语法的延伸和扩展,学生有一定的基础,学习起来应该比较轻松。,新课导入建议 可以尝试用学生日常生活的话题互动式引入本课: T: I think most of us like surfing the Internet.The Internet is part of our life, do you think so? S:,T: We know about all kinds of things from the Internet.What are your favorite activities on the Internet? Tell the class.Use the key words

3、 to help you.(show some slides about the Internet) S: T: Why do you like this activity? S:,教学流程设计,演示结束,1likely adj.有可能的 adv.可能;或许(通常与most,very连用) In a group discussion,I am more likely to jump in and contribute ideas.(P4) 在小组讨论中,我有可能踊跃参加,出主意,想办法。 It s likely to rain.可能要下雨了。 Most likely his attempt w

4、ill fail. 他的尝试很可能要失败。,It is/was likely that.可能 It is/was likely (for sb.)to do sth.某人可能做某事 sb./sth.belikely to do sth. 某人或某物可能,They are likely to become angry with him. 他们可能会对他发怒。 Tickets are likely to be very expensive. 入场券可能很贵。 Shes very likely to ring me tonight. Its very likely that shell ring m

5、e tonight. 她今晚很可能给我打电话。,likely/possible/probable,It is possible,though not probable,that he will come tomorrow while she is very likely to attend the meeting.他明天可能来但也不一定会来,然而她很可能参加会议。,【图示助记】,用likely/possible/probable填空 It is highly_that he will take over his fathers business. It is _(for you) to gro

6、w this flower even in winter. He is_to make rapid progress in English because he is studying hard. 【答案】 probable possible likely,2focus vi.& vt.集中(注意力、精力等);调整焦点或焦距 n中心点,焦点;焦距 In a book with lots of pictures and charts,I am likely to focus mainly on the written text.(P4)在读一本有着大量图画和表格的书时,我很可能对书面文字很注意。

7、 Please focus your attention on the following problem. 请把你们的注意力集中在下面的问题上。 He always wants to be the focus of attention. 他总想成为注意的焦点。,focus on/upon 集中(注意力、精力等)于,把焦点对准 focus sth.on/upon把集中于 focus sth.on 调整的焦距,使焦点落在上 in focus 焦距对准(的),清晰(的),【教师备课资源】 out of focus 焦距没对准(的),模糊(的) bring.into focus使成为焦点,使明朗化,

8、The childrens attention was focused on the stage. 孩子们的注意力集中在舞台上。 Focus the camera on those trees. 把照相机对准那些树。,完成句子 学校应该把注意力放在教学上。 Schools should _ teaching. 他把镜头对准了远处的那座楼。 He _his camera _ the building in the distance. 【答案】 focus(their attention)on/upon focused;on/upon,3reality n真实,现实 Read about the

9、Internet and virtual reality.(P7) 读一下关于网络和虚拟现实的文章。 This is not imagination,but reality. 这不是想象,而是现实。 You can turn your dream into reality by working hard.通过努力学习你可以把梦想变为现实。,bring sb.back to reality使某人面对现实 make sth.a reality实现某事 lose touch of reality脱离现实 in reality事实上;实际上 realize v实现,认识到 really adv.真实地

10、,真正地,确实,【教师备课资源】 realistic adj.现实的,切合实际的,实事求是的 realist n现实主义者,His stay among the mountains brought him back to reality.他待在山区休养让他回归了现实。 We thought they had come to repair the phone,but in reality they were burglars. 我们以为他们是来修理电话的,实际上他们是贼。,完成句子 事实上,我爷爷已经不能走路了。 _,my grandfather can no longer walk. 脱离现实

11、是一个不明智的办法。 _is an unwise way. 【答案】 In reality Losing touch of reality,come into being形成;产生 come to an end结束 come about产生;发生 come across偶然遇见 come up with提出 come out出来;出版;发芽,We do not know when this world came into being. 我们不知道世界是何时形成的。 How did this come about?这事是怎么发生的?,come true/realize,Our wish for

12、better times has come true. 我们要过好日子的愿望已实现。 Ive realized my dream of being admitted into the key university.我考入重点大学的梦想已经实现了。,完成句子 My dream of being admitted into the key university has_(实现了) I_(偶然遇见) an old friend in Oxford Street this morning. Is that the best answer you can_(想出)? 【答案】 come true/bee

13、n realized came across come up with,用come true/realize填空 She will never_ her ambition of becoming a singer. I hoped I could go to Shanghai someday when I was a little child,and now my dream_ 【答案】 realize has come true/been realized,(2)do you know在句中作插入语 What other work do you know we should do? 你知道我

14、们还应该做什么其他的工作吗? What explanation do you know the teacher could give? 你知道老师会给出什么解释吗?,常可用于插入语的动词有expect,think,hope,guess,believe,suggest,suppose等。,When do you think theyll be back? 你认为他们什么时候会回来? Where did they suggest we should go? 他们建议我们应该去哪儿? How old did you think she was? 你认为她多大了?,单项填空 Mum is coming

15、.What present _for your birthday? Ayou expect she has got Byou expect has she got Cdo you expect she has got Ddo you expect has she got,【解析】 本题考查插入语的用法。do you expect为插入语,所在句子的语序应为陈述语序,故选C。 【答案】 C,5flood n洪水;水灾 vi.& vt. 淹没;泛滥;涌入 Global warming causes world flooding.(P7) 全球变暖引起了洪水在全世界范围内的泛滥。 The heavy

16、 rain has caused floods in many parts of the country.大雨使全国许多地方泛滥成灾。 The river flooded the valley. 河水泛滥淹没了河谷。,a flood of/floods of 大量的;大批的 in flood在泛滥 be flooded with大量收到;充满 flood in/into大量涌入 flood out of蜂拥而出,The River Nile used to be in flood regularly every year. 尼罗河以前每年都定时泛滥。 Japanese companies we

17、re accused of flooding the market with cheap steel. 日本公司被指控以廉价钢材充斥市场。,完成句子 大批祝贺信潮水般涌来。 Letters of congratulations _ 金黄色的阳光泄入我的房间。 The golden sunlight _ my room. 稻田被淹没了。 The rice fields _ 【答案】 flooded in flooded into have been flooded,6harm vt.&n.伤害;损害 someone who does terrible things to harm countri

18、es, governments and people.(P8) 制造恐怖事件来伤害国家、政府和人民的人。 He would never harm anyone. 他永远不会伤害任何人。 The court case will do serious harm to my business. 这起诉讼案件将严重损害我的生意。,do harm to sb.do sb.harm 损害某人;对某人有害 there is no harm in doing.不妨(相当于it does no harm to do sth.) mean no harm 没有恶意 harmful adj.有害的 be harmf

19、ul to 对有害,Smoking will do you harm.Smoking will do harm to you.吸烟对你有害。 Theres no harm in letting Jimmy go out to play on the snow.让吉米到外面的雪地里去玩没有什么害处。,harm/wound/injure,The soldier sank to the ground, badly wounded. 那士兵受了重伤,倒在地上。 He injured his left hand in a fire. 他在火灾中伤了左手。,用harm/wound/injure适当形式填空

20、 In the traffic accident,two were killed and three got_ The soldier was badly_in the head. Smoking seriously_his health. 【答案】 injured wounded harmed,7Peter Taylor finds_out how computers and the Internet are going to affect our lives.(P8)彼得泰勒发现计算机和网络将如何影响我们的生活。 (1)find out 找出,发现,查明 Ill try to find o

21、ut who did it. 我会尽力弄清楚这是谁做的。 Can you find out what time the meeting starts? 你能查清楚会议什么时候开始吗?,find/find out,He found that the method worked. 他发现那办法有用。 I havent found out anything about him yet. 我还没有发现有关他的任何情况。,用find/find out填空 He _ a wallet when he crossed the street. Have you _ the secret they tried

22、to hide? I have _ the best way to give advice to children is to _ what they want to do and then advise them to do it. 【答案】 found found out found;find out,(2)affect vt. 影响;感动;侵袭;疾病侵害或感染 Your opinion will not affect my decision. 你的观点不会影响我的决定。 The audience was deeply affected. 听众被深深地打动了。,affect/effect/

23、influence,These agreements have an effect on both the buyer and the seller.这些协议对买卖双方都起作用。 He is a man of some influence in the government circles.他是个在政府内有一定势力的人。,用affect/effect/influence适当形式填空 Drinking too much has a bad_on your health,so give up drinking to prevent alcohol_your body. Those friends

24、are a bad _ on her. 【答案】 effect;affecting influence,8In 1983,there were only 200 computers connected_to_the_Internet;now there are around 50 million and this growth is clearly going to continue.(P8)1983年,只有200台计算机联网,如今大约有5千万台计算机联网,而且很显然这种增长将持续下去。 connected to the Internet 为过去分词短语作后置定语,修饰computers,相当

25、于定语从句that/which were connected to the Internet,动词connect与被修饰词computers之间为被动关系,故用过去分词作定语。,过去分词作定语有前置和后置两种情况: 前置定语:单个的过去分词作定语,通常放在被修饰的名词之前,表示被动和完成意义。此时过去分词具有形容词的特点,侧重永久性的状态或特点。 后置定语:过去分词短语作定语时,通常放在被修饰的名词之后,它的作用相当于一个定语从句。,The injured workers are now being taken good care of in the hospital. 受伤的工人现正在医院受

26、到良好的照料。 They are cleaning the fallen leaves in the yard. 他们正在打扫院子里的落叶。 This will be the best novel of its kind ever written (that has ever been written) 这将是这类小说中写得最好的。,句型转换 Children introduced to reading early develop strong spoken skills. Children _ to reading early develop strong spoken skills. Th

27、e bridge built last year is very nice. The bridge _ last year is very nice. 【答案】 who are introduced which was built,9In the future,terrorists may“attack” the worlds computers,cause chaos,and make planes and trains crash(P8)在将来,恐怖分子有可能攻击全世界的电脑,造成混乱,导致飞机和火车相撞的事故。 (1)attack n& vt.进攻;攻击 The enemy attack

28、ed our airport all night. The enemy made an attack on our airport all night. 敌人彻夜都在攻击我们的机场。,under attack受到攻击 come under attack遭到攻击/抨击 launch/make an attack on对发起进攻 have an attack of (疾病)发作,The city came under attack during the night. 该城在夜间遭到了袭击。 The police are launching a major attack on drug dealer

29、s.警方对毒品贩子发动了大规模的攻击。,完成句子 他的心脏病发作了。 He _heart. 那位歌星受到报纸的攻击。 The singing star _by the newspaper. 他们在夜间向侵略者发动了一次进攻。 They _ on the invaders by night. 【答案】 had an attack of was attacked made/launched an attack,(2)crash v. & n碰撞;撞击;撞击声 He crashed his car into a wall.他把汽车撞到墙上了。 The tree fell with a great c

30、rash.那棵树哗啦一声倒了。,crash into撞到;撞进 crash against/through/to撞上/进/到 crash sth.against/into sth.将某物撞向某物 crash to the floor/ground撞在地上 crash down撞塌,The elephant crashed through the forest. 大象冲进森林。 The dishes crashed to the floor. 碗碟哗啦一声掉在地板上。,完成句子 他的汽车撞到了墙上。 His car _a wall. 他担心树枝会折断,然后他猛跌到地上。 He was afrai

31、d that the branch might bend over and break,and he would _ 【答案】 crashed into crash to the ground,10offer n&vt.提供;提议 Already, users can buy books, find out about holiday offers, book tickets, and get all sorts of information from the Internet.(P8)用户已经能够从网上购买书籍,查找商家假日的报价单,订票以及得到各种各样的信息。 You cant just

32、turn down offers of work like that. 你不能那样拒绝别人给你提供工作。 Taylor offered him 500 dollars to do the work. 泰勒愿出500美元雇他做这件工作。,make an offer to do主动要做 offer sb.sth.offer sth.to sb.向某人提供某物 offer to do sth.主动提出做某事,【教师备课资源】 offer sb.sth.for钱 以多少钱把某物卖给某人 offer sb.钱for sth.开价给某人买某物,Can I offer you something to dr

33、ink? 我给你拿点喝的好吗? She offered to help the old woman. 她主动提出帮助那位老太太。,offer/provide/supply,We provided them with board and lodging. 我们给他们提供食宿。 The cars will be supplied to people all over the country. 这些汽车将供应给全国各地的人们。,【对接高考】 (2012江苏高考)Can I help you with it? I appreciate your_,but I can manage it myself.

34、 Aadvice Bquestion Coffer Didea 【解析】 句意:我可以帮你吗?我感激你的提议,但我自己能设法做的。offer意为“提议”,符合题意。A意为“建议,劝告”;B意为“问题”;D意为“想法,主意”。 【答案】 C,用offer/provide/supply的适当形式填空 He_me a good job,but I didnt accept it. The book _valuable information on recent trends. Foreign governments_arms to rebels in those days. 【答案】 offered

35、 provides supplied,11.it_is_clear_that we are going to see a huge growth in shopping on the Internet.(P8) 很明显,我们将会看到网上购物的极大增长。 句中结构为It is形容词that从句,其中it为形式主语,真正的主语是由that引导的主语从句,而且此处的it不可用其他词如this,that等来代替,在英语中,只有it可作形式主语。 Its strange that he didnt come yesterday. 他昨天居然没有来,实在是太奇怪了。,it作形式主语的常见句型: It be

36、名词性词组/形容词(a pity,no wonder,important,possible.)从句 It be 名词性词组/形容词(no good,no use,a waste of.,useless.)doing sth. Itbe 形容词(easy,difficult,kind,nice,stupid.)(for/of sb./sth.)to do sth.,It be 过去分词(announced,believed,reported,said.)从句 It不及物动词(seem,appear,happen.)从句 It takes sb.some time to do sth.,It is

37、 wellknown that Guilin is famous for water. 众所周知,桂林以水闻名。 It is a pity that he isnt present at the party. 很遗憾他没有参加聚会。 Its suggested that we should carry out the plan as soon as possible.有人建议我们应该尽早执行这个计划。 It seems that the picture was hung upside down. 这幅画似乎挂倒了。,【对接高考】 (2013陕西高考)It remains to be seen_

38、the newly formed committees policy can be put into practice. Athat Bwhich Cwhat Dwhether,【解析】 考查名词性从句。题干中it作形式主语,真正主语为横线后的主语从句。判断主语从句中不缺少主干成分,因此排除代词B、C两项;“有待被观察”的事情应是不确定的事而不是表陈述,即排除表陈述的that应用whether表“是否”。 【答案】 D,完成句子 你帮我学英语真是太好了。 It is very kind of you _. 很明显,这种破坏在将来会变得更加危险。 _this destruction will b

39、ecome more dangerous in the future. 【答案】 to help me with my English It is obvious that,12Some experts see our future in virtual realitythe use of computers with sounds and pictures that make you feel as_if you are in a real situation.(P8)有些专家看到了虚拟现实中我们的未来运用计算机产生声音和视觉效果,使你感觉好像就生活在现实中一样。 as if/though好

40、像,仿佛,常用在look,seem等后引导表语从句;as if/though还可引导方式状语从句。 He looked as if/though he was ill. 他看起来生病了。 It seems as if/though it is going to rain. 似乎要下雨了。,as if/though引导的从句的语气有以下几种情况: 当说话者认为句子所述的是真实的或极有可能发生或存在的情况时,从句用陈述语气。 当说话者认为句子所述的是不真实的或发生或存在的可能性很小的情况时,从句用虚拟语气:表示与现在事实相反,从句的谓语动词用一般过去式;表示与过去事实相反,从句的谓语动词用“had

41、过去分词”;表示将来发生的可能性不大,从句的谓语动词用“would/could/might动词原形”。,It sounds as if/though it is raining. 听起来像在下雨。 You look as if you did not care. 你看上去似乎并不在乎。,【对接高考】 (2012北京高考)Dont handle the vase as if it_made of steel. Ais Bwere Chas been Dhad been 【解析】 as if引导的从句对现在情况的虚拟要用一般过去式,并且be动词要用were的形式。 【答案】 B,完成句子 这套衣服

42、看起来似乎是按尺寸给这乞丐做的。 _the suit was made to the beggars own measure. 他说起罗马来好像他以前去过似的。 He talks about Rome as if he _ there before. 【答案】 It seemed as if had been,观察下列从Reading中选取的句子,体会一般将来时的用法。 This growth is clearly going to continue. We are going to see a huge growth in shopping on the Internet. We will

43、get entertainment from the Net and that television will probably disappear.,I think virtual reality will become a part of modern life. 自我总结 以上四句的时态均为:_,句表示将来时的结构为:_;句表示将来时的结构为:_。 【答案】 一般将来时;be going to do;will动词原形,will和be going to表示将来 一、will动词原形 1表示单纯的将来,用于第一、第二、第三人称。可表示较近的将来和较远的将来。 Hell come back s

44、oon.他很快就会回来。 The new law will come into force next spring. 新法律明年春天生效。,2表示一种倾向或习惯性的动作。 Hell talk for hours if you give him the chance. 如果你让他说,他会说上几个小时。 Every Sunday,we will go hiking. 每个星期天,我们都会去远足。 3表示说话人的意愿、希望、命令、请求等。 China will become one of the richest countries in the world.中国会成为世界上最富有的国家之一。 You

45、 will do as I told you.你得按我说的做。,4表示说话人的猜测。 She will be all right after taking the medicine. 服了药后她会好起来的。 5表示临时决定。 Have you posted the letters for me? 你替我把信寄出去了吗? Sorry,I forgot.Ill post them right away. 对不起,我忘了。我马上就去寄。,二、be going to动词原形 1表示事先考虑后决定做某事,通常译为“打算,准备”。 Im going to sell this old car and buy

46、 a new one. 我打算卖掉这辆旧车,然后买辆新的。 2表示有迹象表明即将发生的动作或出现的情况,通常表示较近的将来。 Look at these dark cloudstheres going to be a storm.看看这些乌云暴风雨就要来了。,疑难辨析 will/be going to,三、表示将来的其他方式 1表示趋向行为的动词如come,go,leave,start,begin等常用进行时形式表示将来时。 I am leaving for Beijing tomorrow. 我明天要去北京。 He is coming here in an hour. 他将在一个小时之后来这

47、里。,2“be about to动词原形”表将来。 “be about to动词原形”表示打算或根据安排即将发生的动作。它不与表示时间的副词或其他时间状语连用。 The English evening is about to start. 英语晚会即将开始。 They are about to set out.他们就要出发。,3be to do用于一般将来时,表示即将或注定将要发生的事,有时也可表示“应该,必须,想要”等意思。 We wonder what is to be done next. 我们想知道接下来将会发生什么事情。 You are to hand in the name list before this Sunday. 在这星期天以前你必须把名单交上。 4在表示按时刻表(如车站、机场等)将要发生的动作时,常用一般现在时表将来。 When does the first train leave tomorrow? 明天第一班火车什么时候出发?,.单项填空 1(2012北京高考)By the time you have finished this book,your meal_cold. Agets Bhas got Cwill get Dis getting,

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