英语Unit 1 Science and Scientists教课内容课件ppt

这是一份英语Unit 1 Science and Scientists教课内容课件ppt，共60页。PPT课件主要包含了课前·基础认知，课堂·重难突破，悦读·导入，随堂训练　，悦读•导入，词 汇 认 知，微生物细菌病菌，subscribe，multiple，decrease等内容，欢迎下载使用。
文章导语:霍乱是霍乱弧菌(Vibri chlera)引起的急性肠道传染病,具有发病急、传播快、波及面广的特点,是当今三种国际检疫传染病中的一种。
ChleraChlera is a water-brne disease that is spread thrugh infected water and fd.It is an illness caused by the bacterium1 called Vibri chlera.It prduces an entertxin(肠毒素) that causes painless,watery diarrhea(腹泻) that can quickly lead t severe dehydratin(脱水) and death if treatment is nt given. Mst peple infected with chlera d nt becme ill, althugh the bacterium is present in their waste fr 7-14 days. When chlera des happen,mre than 90% f cases are nt
severe and are difficult t tell frm ther types f diarrhea. Less than 10% f ill peple develp chlera with signs f mderate r severe dehydratin.
A persn may get chlera by drinking water r eating fd infected with the chlera bacterium.The disease can spread rapidly in areas withut prper treatment f drinking water.The chlera bacterium may als live in the envirnment in dirty rivers and castal waters.Shellfish eaten raw can be a surce f chlera.Therefre,the disease is nt likely t spread directly frm ne persn t anther.
Chlera can be simply and successfully treated by immediate replacement f the fluid2 and salt lst thrugh diarrhea.Patients can be treated by being given a mixture f sugar and salt t be mixed with water and drunk in large amunts.Peple wh develp severe diarrhea in cuntries where chlera breaks ut shuld seek medical attentin at nce.In a wrd,t avid chlera,we shuld develp a gd habit. We shuld eat well-cked fd instead f raw fd.
词海拾贝1.bacterium /bæk̍tIəriəm/ n.细菌2.fluid /̍fluːId/ n.液体
美文凝萃1.Which f the fllwing statements abut chlera is nt true accrding t the passage?A.Chlera can lead t severe dehydratin and is spread quickly thrugh can be treated easily can’t be easily spread in areas with clean drinking can we avid being infected with chlera in life?
重点单词1.chlera n.　　　　 2.diarrhea n.　　　　 3.dehydratin n.　　　　 4.　　　　　　　  adj.相互矛盾的;对立的;不一致的 5.germ n.　　　　　　　　　　　 6.　　　　　　  vi.认购(股份);定期订购;定期交纳(会费) 7.　　　　　　  adj.数量多的;多种多样的 
cntradictry
8.　　　　　　　 n.一家人;家庭;同住一所(套)房子的人 9.　　　　　　 vt.& vi.怀疑;疑有;不信任　n.犯罪嫌疑人;可疑对象 10.　　　　　  n.把手;拉手;柄　vt.处理;搬动;操纵(车辆、动物、工具等) 11.　　　　　　　　 n.介入;出面;干涉 12.　　　　　 n.联系;纽带　vt.把……连接起来;相关联 13.　　　　　 adj.未煮的;生的;未经处理的;原始的 14.　　　　　　　  adj.大量的;价值巨大的;重大的 
husehld　suspect　handle　interventin　link　rawsubstantial　
15.　　　　　　　 n.减少;降低;减少量　vt.& vi.(使大小、数量等)减少;减小;降低 16.　　　　　　  n.[pl.]统计数字;统计资料;统计学 17.epidemilgy n.　　　　　　　 18.　　　　　　　　 n.显微镜 
词汇拓展1.severe adj.极为恶劣的;十分严重的;严厉的→　　　　　　 adv.严厉地;严重地→　　　　　　　 n.严重;严格;严厉 2.frustrated adj.懊恼的;沮丧的;失意的→　　　　　　　 vt.挫败;阻止;使懊恼→　　　　　　　　 n.挫折;沮丧 3.infectin n.感染;传染→　　　　　 vt.使感染;传染→　　　　　　 adj.带菌的;感染病菌的 
4.prf n.证据;证明;检验→v.　　　　　 证明,证实 5.pure adj.干净的;纯的;纯粹的→　　　　　 adv.仅仅;完全→　　　　　　 vt.使……洁净 6.transfrm vt.使改观;使改变形态　vi.改变;转变→　　　　　　　　 n.变化;转变 
transfrmatin
重点短语1.nce and 　　　　　all 最终地;彻底地 2.subscribe 　　　　　同意;赞同 3.thanks 　　　　　幸亏;由于 4.　　　　　 general 总的说来 5.attend 　　　　　致力于……,处理……,注意……;照顾/照料…… 6.　　　　　 pump 水泵 7.be 　　　　　　blame 应负责 
8.give 　　　　　　分娩 9.a link 　　　　　　 ……之间的联系 10.be 　　　　　t d 很有可能做…… 11.　　　　　 this reasn 因为此原因 
Step 1　Fast Reading一、快速浏览课文,将段落与其主旨大意相匹配Para.1　A.Tw theries abut chlera.Para.2B.Snw shwed us a way t d research int diseases.Para.3C.Snw tld peple t drink clean water.Para.4D.Chlera was a deadly disease.Para.5E.Snw cllected evidence.
Step 2　Detailed Reading二、仔细阅读课文,选择最佳答案1.The passage mainly tells us 　　　. A.the cause f chlera was plluted waterB.Jhn Snw was a well-knwn dctr in LndnC.the surce f all drinking water shuld be examinedD.hw Jhn Snw did research and helped t defeat chlera
2.Hw did Jhn Snw d the research?A.By using maps and drinking the water questining the experimenting with himself.
3.What did Jhn Snw desire t d as a yung dctr?A.T be a wrld-famus attend t Queen prevent and treat create a new thery.
4.Which wrds can best describe Jhn Snw?A.Selfless and and and and intelligent.
5.Why is Snw cnsidered the father f mdern epidemilgy?A.Because he changed the way t study he knew hw t prevent and treat he made chlera disappear in the he annunced the pump water carried chlera germs.
1.【教材原文】As a yung dctr,Jhn Snw became frustrated because n ne knew hw t prevent r treat chlera.(page 2)由于当时无人知道如何预防或治疗霍乱,年轻的约翰·斯诺医生很沮丧。
考点 frustrated adj.懊恼的;沮丧的;失意的frustrate vt.挫败;阻止;使懊恼be frustrated with/at 对……感到沮丧frustratin n.挫败;沮丧;懊恼
语境领悟(1)They felt frustrated at the lack f prgress.没有进展,他们感到沮丧。(2)When things g wrng,all f us naturally feel disappinted and frustrated.出问题时,我们大家自然都感到失望和沮丧。
学以致用单句语法填空(1)He ften appeared angry and 　　　　　(frustrate) at smething unimprtant. (2)It is 　　　　　　(frustrate) t learn that all these years’ effrts have cme t nthing. 
frustrating
2.【教材原文】Hwever,he never lst his desire t destry chlera nce and fr all.(page 2)然而,他始终没有放弃彻底根除霍乱的愿望。考点 nce and fr all最终地;彻底地all at nce突然;同时at nce立即;马上nce again再一次;再次
语境领悟(1)He will explain it fully nce and fr all.他将把它彻底地解释一次,就此了结。(2)S many thughts f Haas were crwded int her mind,all at nce.对哈斯的种种思念一下子涌上她的心头。(3)As the name suggests,it may ccur nce and never appear nce again.顾名思义,它可能只出现一次,并且不会再次出现。
学以致用单句语法填空(1)All 　　　　　nce there was a lud banging n the dr. (2)Nw,g upstairs 　　　　　　nce and clean yur rm! 完成句子(3)许多实际上的细节问题都需要同时处理。A lt f practical details needed t be attended t 　 　 　　　 　　　　. 
all at nce
3.【教材原文】The ther was that chlera was caused by an infectin frm germs in fd r water.(page 2)另一种看法是食物或饮用水中的细菌感染导致霍乱。考点infectin n.感染;传染infect vt.使感染;传染infect sb/sth with sth使某人/某物感染上……infect sb (with) sth 使某人感染(某种感情);影响be infected with... 感染了……infected adj.带菌的;感染病菌的infectius adj.传染性的
语境领悟(1)This infectin is spread by msquites.这种传染病是由蚊子传播的。(2)She infected the whle class with her laughter.她的笑声感染了全班同学。
(3)The drug will be useful t hundreds f thusands f infected peple.这种药将惠及几十万的感染者。(4)Laughter is ne f the mst infectius expressins f emtin.笑是最具感染力的情感表达方式之一。
学以致用单句语法填空(1)The wund frm the dg bite has becme 　　　　(infect).(2)Keeping clean can help t decrease the risk f 　　 (infect).(3)These yung peple were infected 　　　　　the virus. (4)Up t nw,nly few peple in the wrld have gt an　　　　　 (infectius) frm the disease arund the wrld.
4.【教材原文】Snw subscribed t the secnd thery.(page 2)斯诺赞同第二种看法。考点subscribe vi.认购(股份);定期订购;定期交纳(会费)subscribe t 同意;赞同;定期订购(或订阅等);定期(向慈善机构)捐款;定期交纳(会员费)subscribe fr 认购(股份)subscriber n.(报刊的)订购者,订阅者;消费者,用户;定期捐助者
语境领悟(1)He culd nt subscribe t their unfair plan.他不能同意他们的不公平计划。(2)I subscribed t a number f jurnals cncerned with my subject.我订阅了许多与我的主题有关的期刊。(3)Hw much did yu subscribe t the disaster fund?你捐助了多少救灾基金?
(4)We subscribe t several sprts channels.我们付费收看好几个体育频道。(5)Emplyees subscribed fr far mre shares than expected.雇员们认购了远比预计多的股份。
学以致用单句语法填空(1)Which jurnals will the library subscribe 　　　　　next year? (2)Write a letter t us at nce and the free album ffered t every new 　　　　　　　(subscribe). (3)Hw many shares did yu subscribe 　　　　　　in the new cmpany? 
完成句子(4)大多数科学家都同意人类活动导致全球变暖的观点。Mst scientists 　　　 　 　　 　 　 　　　　　　　　that Earth is becming warmer because f human activities. (5)每名雇员可以认购价值2,000美元的股票。Each emplyee may 　　　　  　　　　up t $2,000 wrth f shares. 
subscribe t the view/pinin
subscribe fr
5.【教材原文】Snw suspected that the water pump was t blame.(page 2)斯诺怀疑水泵就是罪魁祸首。考点一suspect vt.& vi.怀疑;疑有;不信任　n.犯罪嫌疑人;可疑对象suspect sth/that...怀疑……suspect sb/sth t be+n./adj.怀疑/猜想某人(某物)为……suspect sb f(ding) sth 怀疑某人(做过)某事
语境领悟(1)I began t suspect(that) they were trying t get rid f me.我开始觉察出,他们试图摆脱掉我。(2)What she said sunded cnvincing,but I suspected it t be a lie.她的话听起来有说服力,但我认为那是谎话。
(3)He was suspected f stealing the mney.他被怀疑偷了这笔钱。(4)If I find smene wh lks like the suspect,my immediate reactin will be t reprt t the plice.如果我发现有看上去像嫌疑犯的人,我最直接的反应就是要报警。
考点二blame vt.把……归咎于;责怪;指责n.责备,指责be t blame(fr sth) 对(某事)负有责任blame sb/sth fr sth 因某人/某事怪罪,责怪……blame sth n sb/sth 把……的责任推给……accept/take the blame fr 承担责任put the blame n/upn sb 把责任推到某人身上
语境领悟(1)Wh is t blame fr the prblem?谁应为这个问题负责呢?(2)Yu shuldn’t blame this accident n him.=Yu shuldn’t blame him fr the accident.你不该把这次事故怪罪于他。
(3)Yu can’t expect Terry t take all the blame.你不能指望特里承担所有的责任。(4)Lts f peple find it hard t get up in the mrning,and put the blame n the alarm clck.很多人发现早上很难起床,并且把责任归咎于闹钟。温馨提示 t blame是用主动形式表示被动含义。
学以致用单句语法填空(1)The bss suspected him 　　　　　taking the cmputer away frm the cmpany. (2)The man,　　　　　　(suspect) f cnducting a series f bmbings last year,was arrested by the plice last week. (3)I think Tm,rather than yu is 　　　　　　　　(blame) fr the delay. 
6.【教材原文】Mrever,Snw was later able t shw a link between ther cases f chlera and the different water cmpanies in Lndn.(page 3)此外,斯诺后来还发现了其他霍乱病例与伦敦不同的供水公司之间的联系。考点 link n. 联系;纽带　vt.把……连接起来;相关联将……和……联系或连接起来link up连接;结合a link between A and B　A与B之间的联系
语境领悟(1)We will link yur cmputer with ur netwrk.我们将把你的电脑和我们的网络连接起来。(2)They believe that the illness is linked t the use f chemical pesticide.他们认为这种疾病与杀虫剂的使用有关。(3)There is a direct link between lung cancer and smking.肺癌与吸烟之间有直接的联系。
学以致用单句语法填空(1)The link 　　　　　　 what the men had dne as bys and hw they turned ut as adults was surprisingly sharp. (2)Experts say hydrgen technlgy can reduce industrial gases 　　　　　　 (link) t glbal warming. (3)The tw cities 　　　　　　(link) by a railway. 
7.【教材原文】 the threat f chlera arund the wrld saw a substantial decrease.(page 3)……世界各地霍乱的威胁大幅降低。
考点 decrease n.减少;降低;减少量　vt.& vi.(使大小、数量等)减少;减小;降低n the decrease在减少a decrease in...在……方面减少decrease by...减少了……decrease t...减少到……decrease 从……减少到……
语境领悟(1)The number f students ging abrad fr further study is n the decrease nwadays.目前去国外继续深造的学生数量在不断减少。(2)This species f bird is decreasing in numbers every year.这种鸟的数量在逐年减少。
(3)The price f wheat has decreased by 15%.小麦价格降低了15%。(4)The number f new students decreased frm 210 t 160 this year.今年新生人数从210减少到了160。
温馨提示 decrease的反义词increase的用法 increase t增加(长)到…… increase by增加(长)了…… n the increase在增加
学以致用单句语法填空(1)There has been a decrease 　　　　　　　　the number f emplyees this year. (2)After taking the medicine,his temperature decreased frm 40℃ 　　　　　　36.8℃. (3)The number f this kind f bird is 　　　　　the decrease every year. 
8.【教材原文】Frtunately,we nw knw hw t prevent chlera,thanks t the wrk f Jhn Snw.(page 3)幸运的是,由于约翰·斯诺的努力,我们现在知道了如何预防霍乱。考点 thanks t 幸亏;由于表示原因的介词短语有due t,because f,n accunt f,wing t,as a result f等。
语境领悟(1)Thanks t yur help,I became mre cnfident and spent mre time reading English bks.多亏了你的帮助,我变得更加自信,而且花更多的时间阅读英语书籍。(2)Thanks t his strng cnstitutin,Jack was able t pull thrugh his recent serius illness.多亏了杰克强壮的体质,他才能度过最近这场重病。
学以致用单句语法填空(1)Thanks 　　　　　　yur help,I was able t get ut f my truble. (2)Thanks 　　　　　　yur apprval.If yu didn’t apprve f my plan,I wuld be fired by the emplyer. 
完成句子(3)多亏了王先生的指导,这个男孩决定改掉他的坏习惯。　　　　 　　　　Mr Wang’s guidance,the by decided t get rid f his bad habits. 
Thanks t
9.【教材原文】Mrever,in his use f maps and statistics, Snw transfrmed the way scientists study diseases.(page 3)此外,通过使用地图和数据,斯诺改变了科学家研究疾病的方式。考点 transfrm vt.使改观;使改变形态vi.改变;转变 把……变成…… 从……转变/转化transfrmatin n.改观;变化;转变
语境领悟(1)As China’s first special ecnmic zne,it was transfrmed frm a small fishing village int a majr natinal ecnmic hub.作为中国第一个经济特区,它由一个小渔村转变成一个主要的国家经济中心。(2)His character seems t have g thrugh a cmplete transfrmatin since his marriage.他结婚之后性格判若两人。
学以致用单句语法填空(1)In recent years his ideas have undergne a cmplete 　　　　　　　　(transfrm). (2)A cmplete change f climate transfrmed the area frm a desert 　　　　　　a swamp. (3)As is knwn t all,water can 　　　　　　　　(transfrm) int pwer. 
be transfrmed
句型转换(4)The village has been transfrmed int a small twn and it takes n a new lk nw.→______________________________________________________________________(用动词-ed形式短语做状语改写句子)
Transfrmed int a small twn,the village takes n a new lk nw.
句法分析“hw t prevent r treat chlera”是“疑问词+不定式”结构做宾语,这个结构中常用的疑问词有wh,what,when,where,hw, whether,which等,在句中做主语、宾语、表语等;做主语时谓语动词常用单数形式。
语境领悟(1)The difficulty is hw t d the mst f wrk with the least f mney.困难是如何尽量少用钱多办事。(2)Where t spend the hliday hasn’t been decided.去哪儿度假还没有定下来。
学以致用单句语法填空(1)Dn’t wrry.Peter can shw yu 　　　　　　t turn an idea int an act. (2)The dctr didn’t tell me when 　　　　　　　(take) the medicine. (3)(2022·新高考全国Ⅱ卷) “He saved my sn’s life,” said Mrs.Brwn.“I dn’t knw 　　　　　　t thank him.” 
2.【教材原文】He discvered that in tw particular streets the chlera utbreak was s severe that mre than 500 peple died in ten days.(page 2)他发现霍乱疫情在两条街道上尤为严重,十天内就有500多人死亡。
句法分析本句是一个主从复合句,“如此……以至于……”引导结果状语从句,s后常接形容词或副词,常见形式有:
也表示“如此……以至于……”,但such修饰名词,常见形式有:
语境领悟(1)He runs s fast that n ne can catch up with him.他跑得如此之快以至于没人能追上他。(2)He is s smart a by that we all like him.他是一个如此机灵的男孩,我们都喜欢他。
(3)There were s few guests that the hst felt sad.宾客如此之少,主人很伤心。(4)We left in such a hurry that we frgt t lck the dr.我们走得太匆忙了,连门都忘了锁。(5)He has made such rapid prgress that he was praised by his teacher.他进步非常快,老师表扬了他。
温馨提示 (1)little表示“少”时用s修饰,但表示“小”时用such修饰。 There was s little time left that we must hurry. 时间不多了,我们必须快一点。 They are such little children that they can’t understand it. 他们这么小的孩子是不会理解的。
(2)在和句型中,当“s/such...”置于句首时,其所在的句子要用部分倒装。 S ht a day was it that they all went swimming.=(Such a ht day was it that they all went swimming.) 天气那么热,他们都去游泳了。
学以致用选词填空(s/such/that)(1)I was 　　　　　sleepy 　　　　　I culd hardly keep my eyes pen. (2)It was 　　　　　　　a ht day 　　　　　　nbdy wanted t d anything. (3)Yu can’t imagine 　　　　　　little birds can eat　　　　　　many insects in 　　　　　　a shrt time. 
完成句子(4)S 　　 　 　　　　 　　　　　(她如此激动) that it tk us an hur t calm her dwn. (5)Such 　　　　 　　　　　 　　　 　　　 　 (他取得如此大的进步) that his parents felt very happy. 
excited was she
great prgress did he make
一、单词拼写1.Why d yu 　　　　　　(怀疑) him f taking yur watch away? 2.I think yu are t 　　　　　　(严厉的) n the students.3.I have 　　　　　　　(定期订购) t China Daily fr many years. 4.D yu have any 　　　(证据) that this man stle yur bag?5.Little Tm became 　　　　　　　 (沮丧的) because he hadn’t passed the test. 
6.Abut the accident,we are faced with tw　 　　　　 (相互矛盾的) statements. 7.Wh makes financial decisins in yur 　　 　　 (家庭)? 8.When I began t wrk,I wrried a lt abut whether I can　　　　　　　 (处理) this new jb. 9.Yet the river’s flw has 　　　　　　(减少) in recent decades. 10.We wuld resist any 　　　　　　(干涉) frm utside in ur cuntry’s affairs. 
interventin
二、单句语法填空1.Anyne breaking the law will be 　　 　(severe) cmpanies 　　　　　　　　　　(subscribe) generusly t the ftball club s far. 3.I think he suspected us 　　　　　giving away the secret. 4.This infrmatin cnfirms me in the belief that he is 　　　　　　　　(blame). 5.Turning t the purpse and functin f the kites,they certainly had 　　　　　　　(multiply) uses. 
have subscribed
6.But the infrmatin I gt was rich and varied,r even 　　　　　　　 (cntradict). 7.The news is 　　　　　imprtant that I must tell it t my friends. 8.A cheap table can 　　　　　　　　　(transfrm) by an interesting cver. 
三、课文语篇填空Jhn Snw Defeats “King Chlera”Chlera used t be ne f the mst feared 1.__________(disease) in the wrld,until Jhn Snw shwed hw it culd be vercme.Chlera,as 2.　　　　　 deadly disease f its day,threatened rdinary peple.N ne knew its cause r its cure.Every time chlera brke ut,large numbers f 3. 　　　　　　  (frighten) peple died.Jhn Snw was determined 4.　　　　　　 (slve) this prblem.He knew nly if he fund its cause wuld it be cntrlled. 
There were tw theries that 5.　　　　　 (pssible) explained hw peple gt infected.Jhn Snw 6.　　　　　　　(subscribe) t the thery that chlera was caused by an infectin frm germs in fd r water.