北师大版高中英语选修7课件：Unit 20 Period Four

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1、Unit 20 New Frontiers,基础自测,内容索引,要点探究,达标检测,课文预读,Period Four Communication Workshop，Language Awareness 5，Culture Corner & Bulletin Board,基础自测,.重点单词 1. n.探测；探险v.探测；探险；探索 2. n.小圆点 3. n.祖先；祖宗 4. adv.向外地adv.向上地 5. n.界线；边界v.跳跃；限制,exploration,explore,dot,ancestor,outwards upwards,boundary bound,6. vi.逐渐变弱 7

2、. n.障碍；屏障 8. n.现象n.(pl.)现象 9. adj.原始的 10. adj.长久的，永久的 11. adj.最初的，开始的adv.最初，首先，开头 12. vi.快速旋转,fade,barrier,phenomenon phenomena,primitive,permanent,initial initially,spin,13. adj.头顶上的 14. vt.允许，许可n.允许，许可 15. adj.成熟的v.(使)成熟 16. vt.按；压n.压力 17. adj.有毒的n.毒药；毒物,overhead,permit permission,ripe ripen,press

3、 pressure,poisonous poison,18. vt.宣告；宣布 19. n.纪念品 20. n.移民；殖民者v.定居；解决,declare,souvenir,settler settle,.重点短语 1. 的数量 2. 下降；减少 3. 由于；作为的结果 4. 以防；万一 5. 建立，设立；设置；创办 6. 由于 7. 而不是 8. 总之 9. 导致，致使；通向；通往,the number of,drop off,as a result of,in case,set up,due to,rather than,in conclusion,lead to,.重点句式 1.with

4、复合结构 This marked the beginning of the “space race” between the US and the USSR，which ended with the US (put) a man on the moon in 1969. 这标志着美国和前苏联之间“太空竞赛”的开始，这场竞赛最终以美国于1969年把人送上月球而告终。,putting,2.so that引导目的状语从句 It was launched in 1990 astronomers could observe space without the Earths atmosphere bein

5、g a barrier. 它于1990年被送入太空，以便天文学家观测太空时能不受地球大气层的阻碍。 3.as long as 引导条件状语从句 . people remain interested，we will keep exploring the world overhead. 只要人们仍心存兴趣，我们将会继续探索头顶上的世界。,so that,as long as,课文预读,.根据P26课文内容判断正(T)误(F) 1.The moon is the only frontier left to explore for man.( ) 2.The invention of Hubble T

6、elescope contributes to exploring space further.( ) 3.The successful launch of Shenzhou makes a great difference to Chinas manned space programme.( ) 4.A permanent base has been set up on the moon.( ) 5.The space exploration has been more than 60 years.( ),F,T,T,F,T,.根据P26课文内容选出最佳答案 1.Humans began t

7、o explore space in . A.1957 B.1961 C.1969 D.1990,答案,1,2,3,4,5,2.The “space race” between the US and the USSR ended with . A.the first manned flight B.the moon landing C.the launch of Sputnik 1 D.the invention of Hubble Telescope,答案,1,2,3,4,5,3.Human first set foot on the moon in . A.1957 B.1961 C.19

8、69 D.1990,答案,1,2,3,4,5,4.Chinas manned space programme began with the launch. A.Sputnik 1 B.Shenzhou C.Dongfanghong 1 Satellite D.Shenzhou ,答案,1,2,3,4,5,5.Chinas contribution to international space exploration started with the successful launch of . A.Dongfanghong 1 Satellite B.Sputnik 1 Satellite C

9、.Shenzhou D.Shenzhou ,答案,1,2,3,4,5,要点探究,After this，interest faded and the number of manned flights dropped off. 自那以后，(人类探索太空的)兴趣逐渐减弱，载人飞行的次数也减少了。,重点词汇,(1)All memories of her childhood has faded from her mind. 她对童年的一切记忆逐渐从脑海中消逝了。 (2)The lights and music faded out as we set sail from the harbor. 当我们从海

10、港起航时，光线逐渐变暗，音乐声逐渐减弱。 (3)Their admiration of foreign-style education system is getting stronger instead of fading . 他们对国外教育体系的崇拜越来越强而不是逐渐减弱。 单句改错 (4)The noise of the children in the street faded away.,away,out,(1)“the number of可数名词复数”表示“的数量”，作主语时，谓语动词用单数。 (2)“a number of可数名词复数”表示“大量的”，作主语时，谓语动词用复数。,(

11、5)Since 1992 the number of people dying (be) bigger than that of those being born by a massive 50%. 自1992年以来，死亡人数就已经比出生人数大了50%。 (6)A number of students of our school (read) that magazine. 我们学校的很多学生已经读过那本杂志了。,has been,have read,drop off下降；减少；打盹；让下车，把放下 drop out (of.)(从)辍学；退出；脱离 drop away逐渐下降；减少 drop

12、in on sb. 顺便拜访某人 drop in at sp.顺便拜访某地,(7)I dropped off and missed the end of the film. 我打了个盹儿，错过了电影的结尾。 (8)Ill drop you on my way home.我回家路上顺道送你吧。 (9)He had to the race because of injury. 由于受伤他不得不退出比赛。 (10)Sales have dropped in recent months. 近几个月以来，销售额逐渐下降。 单句改错 (11)I thought Id drop in you while I

13、 was passing.,off,drop out of,away, on,Recently there has been another burst of interest in space as a result of the Hubble Telescope. 最近，由于哈勃望远镜的发明，人们对探索太空的兴趣进入了另一个高潮。,as a result of由于；作为的结果 as a result结果，因此 result from因而引起(后接原因) result in导致；致使(后接结果),(1)He was late as a result of the traffic jam. H

14、e was caught in the traffic jam；as a result，he was late. 由于交通堵塞，他迟到了。 (2)People have better access to health care than they used to，and theyre living longer . 人们有了比过去更便捷的医疗服务，结果，人们更长寿了。(2017北京) 句型转换 (3)His carelessness resulted in the accident. The accident his carelessness. The accident occurred hi

15、s carelessness.,as a result,resulted from,as a result of,.so as to research life in space and provide a stepping stone in case future manned flights are sent out. 为的是研究太空生命并提供一个落脚地以备将来发送载人航天飞机。,in case以防，以备；假如，万一 in case of (n./pron./v.-ing)如果；万一 in any case无论如何，总之 in no case决不(置于句首时，句子用部分倒装) in thi

16、s/that case如果这样/那样的话 注意：当in case引导目的状语从句时，意为“以备，以防”；引导条件状语从句时，意为“如果，万一”；也可作副词性短语置于句末，意为“以防万一”。当in(no/any) case后接的从句为虚拟语气时，谓语部分要用should动词原形，且should不可省略。,(1)It was considerate of Michael to inform us of his delay in case we got worried. Michael通知我们他要迟一会儿以防我们担心，想得真周到。(2015福建) (2) fire，ring the alarm be

17、ll，please.如有火灾，请按警铃。 (3)In no case .无论如何你都不应该放弃。 单句改错 (4)You probably wont need to callbut take my number，just in the case.,In case of,should you give up,The next step will be to send astronauts into the Earths orbit in order to set up space stations to conduct experiments. 接下来要做的就是将宇航员送入地球轨道来建立空间站进

18、行实验。,set up建立，设立；设置；创办 set about doing sth. 着手做某事 set out (to do sth. )出发；开始(做某事) set off出发，动身，启程；使爆炸；引发，激起,(1)In 1963 the UN set up the World Food Programme，one of whose purposes is to relieve worldwide starvation. 联合国在1963年成立了世界粮食计划署，该组织的宗旨之一是减轻世界范围内的饥饿程度。 (2)Mary set about (do) her homework right

19、 after supper. 晚饭后玛丽立刻开始做家庭作业。 (3)We will set out (clean)the house next week. 我们下周开始打扫房子。 (4)We for London just after ten. 刚过十点，我们就动身去伦敦了。,doing,to clean,set off,In conclusion，we are only really in the initial stages of exploring space. 总之，我们还处于探索太空的初级阶段,(1)in conclusion总之；最后 come to/arrive at/reach

20、/draw a conclusion得出结论 (2)conclude v.断定，推断出；得出结论；(使)结束，终止 conclude sth. with/by doing sth. .以结束 conclude.from.从推断出 to conclude最后,(1)In conclusion，I would like to thank everyone who has helped us. 最后，我要感谢所有帮助过我们的人。 (2)Weve come to/arrived at/reached/drawn the conclusion that shes not the right person

21、 for the job. 我们断定她不适合这项工作。 (3)He concluded his lecture a funny story. 他以一个有趣的故事结束了讲座。 单句改错 (4)We drew the conclusion which the room must have been empty then.,with,that,You are not permitted to work if you are on a student visa. 如果你所持的是学生签证，你就不会被允许工作。,(1)permit vt.允许，许可；n.许可证 permit sb. (to do) sth

22、. 允许某人(做)某事 permit doing sth. 允许做某事 (2)permission n.允许，许可 without permission未经许可,(1)The change to the road traffic law will permit fully automatic driving. 道路交通法规的变化将会允许完全自动驾驶。(2017天津) (2)There is a wide road leading through the park，but nobody is permitted (walk) on the road. 有一条宽阔的路通往公园，但是不允许任何人在上

23、面行走。 (3)We dont permit (smoke) in the office. 在我们的办公室不准吸烟。,to walk,smoking,(4)No reference books are to be taken out of the reading room . 本阅览室的参考书未经许可不准带出去。 熟词生义 写出句子中permit的汉语意思 (5)You cannot enter a military base(军事基地) without a permit. _,without permission,通行证,I havent actually pressed the butto

24、n. 实际上，我没有按下按钮,press vt.& vi.按；压；逼迫；压碎 press sb. to do sth. /into doing sth. 催促某人做某事 press.on.把强加于 press.against.把贴/压在上,(1)She pressed grapes to make grape juice. 她压榨葡萄来做葡萄汁。 (2)They are pressing us into (complete) the task in advance. 他们催促我们提前完成任务。 (3)I pressed money him，but he refused to take it.

25、我硬塞钱给他，但他就是不肯要。 (4)She pressed her face the window. 她把脸贴在窗子上。,completing,on,against,NASA declared that a rock from Mars proved. NASA宣布来自火星的岩石证明,(1)declare vt.宣告，宣布；宣称 declare war on对宣战 declare for/against声明赞成/反对 declarethat从句 宣称/宣告 (2)declaration n.宣告，声明；宣言,(1)It was in 1941 that the US declared war

26、 on Japan. 美国是1941年对日本宣战的。 (2)Only a month earlier，Mr Stenholm had declared the tax cut. 就在一个月前，Stenholm先生刚刚表示过反对减税。 (3)She declared she wouldnt want to see him again. 她宣称再也不愿见他了。 (4)The (declare) was published in August 1687. 该宣言发表于1687年8月。,against,that,declaration,This invention made it much quick

27、er and easier to reproduce written work and led to the first ever mass-production of books and literature. 这项发明使得复制书面作品变得更省时、省力，从而实现了书籍和文学作品的首次批量生产。,lead to导致，致使；通向，通往 lead sb. to do sth. 导致/促使某人做某事 lead a(n).life过着的生活,(1)Such situations have led to calls for the tech giants to be broken up. 这些情况导致人

28、们要求把这些科技巨头拆分。 (2)What led you (believe)her and change your mind? 是什么促使你相信她的话而改变自己的想法的？ (3)The government calls on the citizens to . 政府向市民倡导绿色生活。,to believe,lead a green life,经典句式,This marked the beginning of the “space race” between the US and the USSR，which ended with the US putting a man on the mo

29、on in 1969. 这标志着美国和前苏联之间“太空竞赛”的开始，这场竞赛最终以美国于1969年把人送上月球而告终。,with the US putting a man.是“with宾语宾补”构成的with复合结构，此结构在句中可作状语，也可作定语。本句是“with宾语现在分词”构成的复合结构作状语。 with复合结构的构成形式： (1)with宾语介词短语 (2)with宾语形容词 (3)with宾语副词 (4)with宾语现在分词(表示主动或正在进行的动作) (5)with宾语过去分词(表示被动或已完成的动作) (6)with宾语动词不定式(表示将来的动作),(1)The teacher

30、 entered the classroom with a book in his hand. 老师手里拿着一本书进了教室。 (2)I fell asleep with the light on.灯开着我就睡着了。 (3)They were singing and dancing，with the fire (burn) in the middle. 他们围着燃烧的篝火又唱又跳。 (4)They went home，with the work (finish). 他们没完成工作就回家了。 (5)I am sure to make great progress with the teacher

31、(help) me. 有老师帮助我，我一定能取得很大的进步。,burning,unfinished,to help,高级表达 (6)The old couple often take a walk after supper in the park with their pet dog following them.(用独立主格结构改写句子) The old couple often take a walk after supper in the park，_ _.,their pet,dog following them,.as long as people remain interested

32、，we will keep exploring the world overhead. 只要人们仍心存兴趣，我们将会继续探索头顶上的世界。,as long as： (1)起连词作用，引导条件状语从句，可与so long as互换，意为“只要”。so long as语气较强，而as long as多用于口语中。 (2)用于同级比较句型，意为“和一样长”。 (3)用于表示程度，意为“长达”。,(1)Some argue that humans and machines can coexist as long as they work in teams. 一些人争论说只要人类和机器合作，他们是可以共

33、存的。(2017北京) (2)This rope is as long as that one. 这根绳子和那根一样长。 (3)I have been waiting here 2 hours. 我在这里已经等了两个小时了。,as long as,达标检测,.单句语法填空 1.Forecasters say the storms may not be as bad as they (initial) predicted. 2.She loves (explore) in particular，so she goes hiking every summer. 3.The sound of the

34、 cheering faded . 4.The police set roadblocks on routes out of the city. 5.With so many good classmates (help) me，Im sure Ill improve my English this term.,initially,exploration,out,up,helping,6.She had asked the government for (permit) to move the books to a safe place，but they refused. 7.Jims fath

35、er didnt permit him (join) the school football team. 8.There are hundreds of (poison) spiders and snakes here. 9.The number of homeless people (increase) dramatically recently. 10.Buses pick up and drop people at different places on the route.,permission,to join,poisonous,has increased,off,.完成句子 11.

36、他们相信只要我更加努力学习下次我就能成功。 They believe I can succeed next time . 12.以防我忘记，请提醒我一下。，please remind me. 13.他记下了我的地址，以便以后能来拜访我。 He wrote down my address， .,as/so long as I work harder,In case I forget,so that he could visit me later,14.很多人已经申请了这份工作。 A large number of people . 15.你不知道在脚伤得那么厉害的情况下，她是怎样完成接力赛的。

37、You have no idea how she finished the relay race so much.,have applied for the job,with her foot injured,.课文语法填空 By the beginning of the 21st century，almost all of Planet Earth 16._(visit)，described and mapped.Now we are looking outwards at the only frontier left 17. (explore)space. The age of space

38、 exploration began 18. 1957.Sputnik 1 and Yuri Gagarins going into space 19. (mark) the beginning of the “space race” between the US and the USSR. After the Hubble Telescope 20._ _(invent)，another burst of interest in space was aroused. More planets are discovered.The International Space Station is

39、now 21._ _(build) in the Earths orbit so as to research life in space.,has been visited,to explore,in,marked,was,invented,being,built,We are only really in the initial stages of exploring space 22. we have come a long way 23. learning that the Earth is not flat and 24. (spin) in an oval-shaped orbit

40、 25. the sun.,but,since,around,spins,.微写作 写作素材(关于职业选择) 1.王先生在一家公司上班，这家公司不久将被一家外国公司接管。 2.他处于两难的境地，不知道是走还是留。 3.他试着弄清楚目前的形势，但是仍有许多问题有待于解决。 4.他意识到现在到了他做出决定的时候了，否则可能造成难以弥补的损失。 提示：加颜色部分用本单元词汇表达，并且请使用宾语从句、定语从句以及非谓语动词作状语等结构。,连句成篇(将以上句子连成一篇60词左右的英语短文),Mr Wang works in a company，which will soon be taken over by a foreign company.He is in a dilemma，wondering whether he should leave or stay.He tries figuring out the present situations，but many questions remain to be settled.He is aware that it is high time to make a decision，otherwise it may bring out a loss that wont be made up for.,