高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课前预习ppt课件

这是一份高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课前预习ppt课件，共60页。PPT课件主要包含了课前·基础认知，课堂·重难突破，随堂训练　，词 汇 认 知，mechanic，assistance，lead，leader，gift，astronomer等内容，欢迎下载使用。

重点单词1.　　　　　　 vt.投射;向……投以(视线、笑容等);投掷 2.　　　　　　　 n.阴影;影子;背光处 3.　　　　　　　 n.彩虹 4.　　　　　　 vt.倒出;倾泻;斟(饮料) 5.　　　　　　 n.混凝土　adj.混凝土制的;确实的;具体的 
cast　shadw　rainbw　pur　cncrete
6.plasma n.　　　　 7.aerspace n.　　　　　　　　　 8.patritic adj.　　　　　 9.aviatin n.　　　　　　　　　　　　　 10.　　　　　  vt.保卫;防守;辩解 11.jet n.　　　　　　　　　 12.missile n.　　　　 
血浆　 航空航天工业　 爱国的　航空制造业;航空;飞行
defend　 喷气式飞机　 导弹
13.　　　　　　 adj.优秀的;杰出的;明显的 14.　　　　　　  adj.抽象的;理论上的 n.(文献等的)摘要15.　　　　　　 adj.稳定的;平稳的;稳步的 16.　　　　　　 n.概念;观念 17.　　　　　　　 n.望远镜 18.besides prep.　　　　　　　　　 adv.　 　　　　 19.　　　　　　  adj.聪颖的;绝妙的;明亮的 20.　　　　　　　  adv.此外;再者 
utstanding　abstract　steady　cncept　telescpe　 除……之外(还)　 而且;此外brilliant　furthermre　
21.　　　　　 n.弱点;过错 22.　　　　　 n.改变;转换;轮班  vi.& vt.转移;挪动;转向23.　　　　　 adj.生动的;鲜明的;丰富的 
fault　shift　vivid
词汇拓展1.mechanical adj.机械的;发动机的;机器的→　　　　　　 n.机械师;机械修理工 2.assistant n.助理;助手→　　　　　　 n.帮助;援助 3.leadership n.领导;领导地位;领导才能→　　　　　　 vt.领导→　　　　　　 n.领导者 4.gifted adj.有天赋的;有天才的;天资聪慧的→　　　　　　 n.赠品;礼物;天才;天赋 5.astrnmy n.天文学→　　　　　　 n.天文学家 
重点短语1.put pressure 　　　　　给……施加压力 2.have an impact 　　　　　对……有影响 3.break 　　　　　(战争、打斗等不愉快的事情)突然开始;爆发 4.　　　　　 charge f 主管;掌管 5.discurage sb 　　　　　ding sth 阻止某人做某事 6.　　　　　 ne’s leadership 在……的领导下 
7.be traced back 　　　　　追溯到 8.cme dwn 　　　　　患(病);染上(小病) 9.pint 　　　　　指出 10.　　　　　 all 最重要的是;尤其是 11.benefit 　　　　　从……获益 
Step 1　Fast Reading一、快速浏览课文,判断正(T)误(F)1.Qian Xuesen had the greatest impact n China’s aerspace science.(　　)2.Qian became a pineer in American jet and rcket technlgy in 1940.(　　)
3.Qian was nt nly interested in rcket science,but he was interested in music and drawing.(　　)4.Hawking achieved fame befre he came dwn with a disease.(　　)5.Hawking was afraid t express his ideas,but he was willing t admit his faults.(　　)
Step 2　Detailed Reading二、仔细阅读课文,选择最佳答案1.Qian Xuesen was called “the father f China’s aerspace”,because 　　　. A.he was patritic and served his hmeland with effrt,achievement and devtinB.he made the decisin t switch his majr t aerspaceC.he develped China’s rcket science,its space and missile prgramme first in ChinaD.he develped the majr f aerspace in a China’s university
2.Why did Qian Xuesen decide t change his majr at university?A.Because he wanted t get respect frm he wuld like t defend his he wanted t g t the US fr further he fund Railway Mechanical Engineering was bring.
3.When did Hawking first becme famus?A.When he was still at he lst the use f his he suffered frm a serius he graduated frm university.
4.Hw was Hawking’s wn thery prven crrect?A.By the steady state Fred Hyle’s his wn astrnmers with telescpes.
1.【教材原文】 it casts different shadws f yu...(page 6)……它投下你不同的影子……考点cast vt.(cast,cast)投射;向……投以(视线、笑容等);投掷cast ne’s eyes n/upn 看向be cast dwn (因某事)沮丧cast dubt n使人怀疑;造谣中伤cast a shadw ver给……蒙上阴影
语境领悟(1)The fisherman cast his net int the water.那个渔民把网撒到水里。(2)He cast an eye at the wman.他向那个女人看了一眼。(3)Dn’t let yurself be cast dwn by a small failure in the experiment.别为了实验中的小失败而垂头丧气。
(4)The fisherman caught a fish at his first cast.那个渔民撒下第一网就捕到了一条鱼。(5)The latest scientific discveries cast dubt n earlier theries.科学上的最新发现使我们对以前的学说产生了怀疑。(6)The war cast a shadw ver peple.战争给人们蒙上了一层阴影。
学以致用单句语法填空(1)He 　　　　　　(cast) a glance at the girl. (2)He 　　　　　　(cast) dwn by the sad news. (3)All eyes 　　　　　　(cast) upn the speaker and he felt a little uneasy. 完成句子(4)他向她投去钦佩的目光。He 　 　 　 　　 　 　 　　　　　 　　　　. 
cast her an admiring glance
2.【教材原文】A nn-Newtnian fluid is strange because yu can pur it like a liquid,but if yu put any pressure n it,it suddenly becmes hard as cncrete.(page 7)非牛顿流体很奇怪,因为你可以把它像液体一样倒出来,但如果你对它施加压力,它会突然变得像混凝土一样硬。
考点 pur vt.倒出;倾泻;斟(饮料)pur in涌进pur int涌进……pur ut倒出;涌出;倾诉pur ut f...从……中涌出来pur dwn (雨)倾盆而降
语境领悟(1)After the meeting the peple pured ut in crwds.散会后人们成群地涌出来。(2)Peple pured int the hall.人们涌进大厅。(3)The strm cluds gathered and the rain pured dwn.乌云密布,下起了倾盆大雨。
学以致用完成句子(1)人们对他真切的喜爱和情感从全国各地倾泻而来。Genuine lve and affectin fr him 　　 　 　　 　 　all ver the cuntry. (2)在国外电影涌入国内的同时,华语电影也开始迈向国际市场。As the freign films 　　　 　　　 　　 　,Chinese films als begin t enter the internatinal market. 
pured in frm
pur int China
(3)在这多待会儿吧,现在开始下大雨了。The rain has started t 　　　　 　　　　　at the mment, and stay here a lng time please. 
pur dwn
3.【教材原文】Hwever,after the Snghu Battle brke ut in 1932,Qian made the decisin t switch his majr t aviatin...(page 7)不过,1932年淞沪抗战爆发后,钱学森决定改学航空专业……
考点 break ut (战争、打斗等不愉快的事情)突然开始;爆发break up 粉碎;破碎;结束;散开;解散break dwn 出故障;失败;垮掉;被搞垮;使分解(为)break in 强行进入;破门而入;打断break int sth 强行闯入;突然开始(笑、唱等)break away frm 脱离;挣脱break thrugh 冲破;突破break ff 断开;折断;停顿;中断
语境领悟(1)I was still sleeping when the fire brke ut,and then it spread quickly.我还正在熟睡中,这时突然发生了火灾,而且蔓延得很快。(2)If yu g n wrking like that,yu will break dwn sner r later.如果你继续像那样工作的话,你迟早会累垮的。
(3)They were discussing smething imprtant when a man brke in.他们正在谈论重要的事情,这时一名男子突然闯了进来。(4)Once yu jin them,yu can never break away frm them.一旦你加入了他们,你就永远不能脱离他们了。(5)Scientists hpe t break thrugh sn in their fight against heart disease.科学家希望在治疗心脏病方面很快能有所突破。
学以致用单句语法填空(1)The prisner brke 　　　　　　frm his guards while being taken t anther jail. (2)Her telephne had brken 　　　　　. (3)We had t break 　　　　　　the huse as we had lst the key. 
(4)The river brke 　　　　　　　its banks,and flded the cuntry fr many miles arund. (5)Des everyne knw what t d if a fire breaks 　　　　? (6)Many branches brke 　　　　　　in the strng wind. 
4.【教材原文】 realised that China needed its wn pwerful air frce t prtect and defend the cuntry.(page 7)……他意识到中国需要建设强大的空军来保卫国家。
考点 defend vt.保卫;防守;辩解 保护……不受……;防御defence n.辩护;防御in defence f 保护,防护;为……辩护defence wrks 防御工事,防御工程
语境领悟(1)He is better at defending than attacking.他的防御能力比进攻能力强。(2)All ur fficers are trained t defend themselves against knife attacks.我们所有的警察都接受过自卫训练,能够对付持刀袭击。(3)Is there any man unwilling t fight in defence f his cuntry?难道有谁不愿意为保卫国家而战吗?
学以致用单句语法填空(1)Sme players are better at 　　　　　　(defend). (2)The unin said that they wuld take actin 　　　　　　　(defend) their members’ jbs. 
完成句子(3)无论付出什么代价,我们都要保卫我们的国家。　　　 　　　 　　　　 　　　　 　　　　,whatever the cst may be. (4)我得为她说句话,她对此事一无所知。I have t say 　　 　　 　 　　　 　　　　　that she knew nthing abut it. 
We shall defend ur cuntry
in defence f her
5.【教材原文】He received a her’s welcme frm his hmeland and was put in charge f nt nly develping China’s rcket science but als its space and missile prgramme.(page 8)他受到了祖国英雄般的欢迎,受命发展中国的火箭科学以及航天和导弹项目。
考点 charge vt.& vi.收费;控告;充电　n.主管;收费charge sb fr sth 为某物向某人收取费用charge sb with (ding) sth 控告某人(做)某事take charge f 掌管/负责……in charge f 控制/管理……in the charge f=in sb’s charge 受……的管理;由……负责free f charge=fr free 免费
语境领悟(1)He charged me 20 yuan fr repairing my bike.修理自行车他收了我20元钱。(2)He is charged with taking a car withut the wner’s permissin.他因未征得车主的同意自行开走车而受到指控。(3)Dr Smith is assigned t take charge f the department.史密斯医生受命分管这个部门。
(4)I’ll be in charge f the whle factry next week when the directr is away.下周厂长不在时,我将负责整个工厂。(5)The perfrmers have all ffered their services free f charge.演员们都愿意免费出演。
温馨提示 in charge f多以人做主语,指“某人负责/主管某事”;in the charge f 多以物做主语,指“某物由某人掌管”。类似的还有:in pssessin f,in the pssessin f;in cntrl f,in the cntrl f。
学以致用单句语法填空(1)The plice charged the thief 　　　　　stealing the jewels.(2)Hw much did he charge yu 　　　　　repairing this pair f shes? 
完成句子(3)凭此券你可以免费得到一份法式炸薯条。With the ticket,yu may get a French fries 　　 　 　　　　.(4)他父亲去世后他掌管了农场。He 　　　 　　　　　 　　　the farm after his father died. 
free f charge
tk charge f
6.【教材原文】Since he came dwn with a disease which caused him t lse the use f mst f his muscles,his wrld became ne f abstract thught.(page 8)他因患病致使其大部分肌肉萎缩无力,他的世界变成了一个抽象思维的世界。
考点 cme dwn 患(病);染上(小病);降落;落下;降低;下降cme in (潮水)上涨;涨潮;(赛跑比赛中)取得(某名次);变时髦;时兴;流行cme t d sth 变成;变得cme t 达到;合计cme t neself 恢复常态;苏醒cme abut 发生cme acrss (偶然)遇见;碰见;被理解
cme alng 出现;赶快,进展;跟随cme back 回来;再度流行;再次成功cme ff 能被去掉(或)除去;举行;发生;成功;达到预期效果(或结果)cme ut 出现;出版;开花cme up 长出地面;破土而出;升起;发生;被提及cme up with 想出;找到(答案);拿出(一笔钱等)
语境领悟(1)I dn’t believe that he has cme dwn with a disease,fr his face is in gd cnditin.我不相信他患有疾病,因为他的脸色很好。(2)The price f gas is cming dwn.汽油的价格正在下降。(3)The rain came dwn at dusk and they had t quit.黄昏时下起了雨,他们只好退出。
(4)The ceiling came dwn with a terrific crash.天花板轰然倒塌了。(5)We were frced t cme dwn in a field.我们被迫降落在田地里。
学以致用单句语法填空(1)Hw did it cme 　　　　　that yu had lst in the final?(2)He spke fr a lng time but his meaning didn’t really cme 　　　　　　. (3)When the right pprtunity cmes 　　　　　　,take it. (4)My first nvel came 　　　　　　while I was at cllege. 
完成句子(5)当她在医院里苏醒过来时,约克就站在她面前。When she 　　　 　　　 　　　　　　in hspital,Yrk was standing ver her. (6)你首先应该构思一下你的俱乐部大致是什么样。The first thing 　　　 　　　 　　 　　　 　　 　　　is an idea fr yur club. 
came t herself
yu need t cme up with
1.【教材原文】Perhaps n ther scientist has had a greater impact n China’s aerspace science than Qian Xuesen.(page 7)也许再没有哪一位科学家比钱学森对中国航天科学的影响更大了。
句法分析句中为“否定词+形容词/副词比较级+than”结构,表示最高级意义。表示最高级意义的其他常见结构:never+比较级nthing/n+s+原级++比较级+than...
语境领悟(1)He is taller than anyne else in ur class.他比我们班上任何其他学生都高。(2)I like dgs better than the ther animals.比起其他任何动物,我更喜欢狗。
学以致用单句语法填空(1)N ther persn is 　　　　　　　(gd) t me than yu. (2)The building is much 　　　　　　(tall) than any ther buildings in this area. 完成句子(3)我想不出更好的主意。I can’t think ut 　　　 　　　　 　　　　　. 
a better idea
2.【教材原文】Once the maths was crrected,it shwed that the big bang thery—and nt the steady state thery—was true.(pages 8-9)错误纠正之后显示大爆炸理论而非稳恒态理论是正确的。
句法分析nce引导状语从句,表示“一旦……”。语境领悟(1)Once she has made up her mind,nthing can change it.一旦她下了决心,没有什么可以改变它。(2)Once yu understand this rule,yu will have n further difficulty.一旦你理解这个规则,你就不会再有困难了。
学以致用单句语法填空(1)Yu cannt get ut,　　　　　　 yu are in. 完成句子(2)一旦你听到了这个故事,你将永远无法忘记它。　　 　　 　　 　 　 ,yu will never be able t frget it.(3)一旦你养成了坏习惯,就很难摆脱它。　 　 　 　 　　　 　　 　　 　　　,it is very difficult t get rid f it. 
Once yu hear the stry
Once yu frm a bad habit
一、单词拼写1.The light frm my candle threw his s　　　　 n the wall. 2.The cuntry shuld have the right t d　　　　　　 itself with all legal means. 3.My a　　　　　　 will demnstrate the machine in was witty,amusing and g　　　　　　 with a sharp business brain. 5.His painting went thrugh bth representatinal and a　　　　　　 perids. 
break ut;in charge f;cme dwn;abve all;have a great impact n
1.I’d like t speak t the persn wh is 　　　 　　　this prgramme. 2.When Wrld WarⅠ　　　　　　　,he decided t jin the army immediately. 
in charge f
3.Parents’ wrds and deeds will 　　 　　　　　　　their children. 4.I have been cughing these days,s I think I am 　　　　　　　　　with flu. 5.I want t buy a huse—mdern,cmfrtable and 　　　　　　　　　in a quiet neighburhd. 
have a great impact n
三、单句语法填空1.The law allws peple 　　　　　　　　 (defend) themselves against a charge. 2.He is a 　　　　　(gift) pianist wh has been wrking hard t imprve himself. 3.The number f the cmpany’s exprts has been increasing　　　　　 (steady) in the past years. 4.Nw my 　　　　　　 (assist) will give yu sme papers t read. 
5.He must have cme 　　　　　with a bad cld,fr he has gt a sre thrat. 6.I was still living in Lndn when the war brke 　　　　　 　　　　　　　　　 (astrnmer) made great cntributins t the launch f Shenzhu-14. 8.Her eyes were shining 　　　　　　　　(brilliant),but sn her face lst its clur. 9.Unfrtunately,the technlgy f climate change is n　　　　　　(simple) than anything else. 
brilliantly