外研版 (2019)必修 第三册Unit 3 The world of science图片ppt课件

这是一份外研版 (2019)必修 第三册Unit 3 The world of science图片ppt课件，共44页。PPT课件主要包含了要点精研·探究学习，语法新知·对接课堂，语法探究·核心突破，课时达标·随堂自测，injury，injured，accuracy，for，cured，现在完成等内容，欢迎下载使用。
1.beynd prep.无法……；超出(某个数量、水平或限度)；晚于，迟于　adv.在更远处，往更远处(教材原句)Within the next 80 years, ur lives may be changed beynd recgnitin by 3D printing.在未来的80年里，3D打印可能会让我们的生活发生翻天覆地的变化。❶The beauty f the West Lake is beynd descriptin.西湖的美丽简直无法形容。❷The prblem was quite beynd him.他根本无法理解这个问题。❸I knw what I'll be ding fr the next three weeks but I haven't thught beynd that.我知道我未来三周要做什么，但再往后我还没有想过。❹Snwdn and the muntains beynd were cvered in snw.斯诺登山和更远的山脉都被积雪覆盖着。
[归纳探究]beynd recgnitin 认不出来，面目全非beynd descriptin 无法形容beynd repair 无法修理beynd belief 无法相信beynd cmpare 无与伦比beynd ne's wildest dreams 某人做梦也想不到beynd ne's reach 在某人够不着的地方
[即学即练]　完成句子①The twn centre had changed _______________ (认不出来).②The whle prblem was hard t slve. It _____________ (他无法理解).③他的成功令人难以置信，因为他的对手非常有经验。His success was ____________ since his cmpetitr was s experienced.④她在昨天音乐会上的表演无与伦比。Her perfrmance at yesterday's cncert was ______________．
beynd recgnitin
was beynd him
beynd belief
beynd cmpare
2.significant adj.重要的，影响深远的❶The mst significant thing yu shuld keep in mind is that mst f the questins are easy if yu make use f crrect methds.你应该牢记的最重要的事情是，如果你使用正确的方法的话，大部分问题是容易的。❷Mst peple attach great significance t educatin.大多数人重视教育。❸The discvery f the new drug is f great significance t peple suffering frm heart prblems.这种新药的发现对患有心脏病的人具有重要意义。❹They perfrmed significantly better in all the ther tests.他们在所有其他的测试中明显表现得更好。
[归纳探究](1)a significant achievement 重大成就a highly significant discvery 有重大意义的发现play a significant rle in 在……中发挥重要作用It is significant that... ……很重要。be significant＝be f significance 重要的(2)attach (great/little) significance t 认为……(很/几乎不)重要be f (great/n/little) significance t... 对……(很/不/几乎不)重要
[一句多译]　我认为，练习书法对学生的成长有着重要的意义。In my view, practicing handwriting is very significant t the students' grwth.＝In my view, practicing handwriting is f great significance t the students' grwth.
[即学即练]　单句语法填空①Mst students think it significant t jin the English crner, thugh a few haven't realized the __________ (significant) f it.②Learning strategies，________ which the teachers attach significance, haven't drawn enugh attentin f students.③The new drug has great __________ (significant) fr the treatment f the disease.④The plan t be carried ut is ________ great significance t peple's life there.
significance
3.injure v．使受伤，弄伤(教材原句)And it is nt just humans wh are benefiting—in Brazil, peple have given a new 3D-printed shell t a turtle injured in a frest fire!而且不仅仅是人类受益——在巴西，人们给了一只在森林大火中受伤的乌龟一个新的3D打印的龟壳！❶The main thing is t attend t the injured.首要任务是照顾伤者。❷Dn't d that. Yu will d yurself an injury.别那样做。你会把自己弄伤的。❸T much smking will injure the vice.吸烟太多会损害嗓音。
[归纳探究]injure sb./sth./neself 使某人/某物受伤injure ne's pride/feelings 伤害某人的自尊/情感be badly/seriusly injured 严重受伤the injured 受伤的人d sb.an injury/d an injury t sb. 伤害某人[单词积累]　injured adj.受伤的　　injury n．伤害；损害An injured man was taken t the hspital, where the dctrs fund he suffered severe injuries t the head and arms and they wndered wh had injured him.一个受伤的人被送到了医院，在那里医生发现他的头部和胳膊都受到了严重的伤害，他们很疑惑是谁伤害了他。
[即学即练]　单句语法填空①The ________ (injure) was quite painful and I culdn't mve my arm fr a mnth—I hated that.②The wman ________ (injure) in the car crash is still under treatment in hspital.③A mnth befre my first marathn, ne f my ankles ___________ (injure) and this meant nt running fr tw weeks, leaving me nly tw weeks t train.
was injured
4.accurate adj.准确的；精确的；逼真的(教材原句)He als develped a calendar which is as accurate as the Gregrian calendar.他还研制了一种和公历一样精确的历法。❶Her reprt f what happened was accurate in every detail f the facts.她对发生的情况的报道在事实的每项细节方面都准确无误。❷He can speak English fluently and accurately.他能准确流利地说英语。❸While wrking ut the prblem, yu shuld pay mre attentin t the accuracy.在解决问题的时候，你应该多注意准确性。
[归纳探究]be accurate in 在……方面准确an accurate accunt/aim 准确的叙述/目标t be accurate 精确地说[联想拓展]与accurate意义相近的词：crrect adj.正确的　exact adj.准确的　right adj.正确的[单词积累]　accurately adv.精确地，准确地accuracy n．准确，精确
[即学即练]　完成句子①精确地说，有205名记者参会了。____________，205 reprters attended the meeting.②我们希望在预测地震方面变得更加精确。We hpe t becme _______________ predicting the earthquakes.③需要核实这些数据的准确性。There is a need t check the ________ f these figures.
T be accurate
mre accurate in/at
5.cure vt.治愈；治好　n．疗法，治疗(教材原句)Currently, there's n cure fr Alzheimer's, but scientists are researching ways t imprve the quality f life fr peple living with the disease.目前，还没有治愈阿尔茨海默病的方法，但是科学家们正在研究改善患有这种疾病的人的生活质量的方法。❶T my satisfactin, this medicine cured me f my cld.让我感到满意的是，这种药治好了我的感冒。❷Parents try t cure their children f bad habits.父母努力纠正孩子的不良习惯。❸The gvernment is trying t seek a gd cure fr unemplyment.政府正在努力寻找解决失业的好办法。
[归纳探究](1)cure sb.f sth. 治好某人的病；矫正某人的不良行为(2)a cure fr sth. 某疾病的治疗方法There is n cure fr... 没有办法治愈……[易错辨析]　cure强调“治愈”(结果)。treat强调“治疗”(过程)。
[即学即练]　单句语法填空①Althugh this medicine can cure yu ________ yur illness, it has a bad effect n yu.②Empathy can be a cure ________ lneliness, sadness, anxiety, and fear.③With the help f my parents and teachers, I ________ (cure) myself f sme bad learning habits and made prgress in my study.
熟记下列重要短语①t date 迄今，到目前为止②due t 由于，归因于③fr instance 例如④ 以……的名字命名⑤field research 实地研究⑥make an advance twards 在……方面取得进展⑦the majrity f 大多数⑧be recgnized as 被认为是⑨alng with 与……一道；与……一起
现在完成时的被动语态一、语法现象感知①I haven't seen much f him recently/lately.②He has already btained a schlarship.③Have they fund the missing child yet?④The watch has just been cleaned and repaired (by them).⑤The imprtant prblem has been discussed fr nearly tw weeks.⑥The reprt has been written by him fr tw days.⑦The experiment has been dne successfully.
二、语法规则理解1．①②③句为________时的________语态。现在完成时的主动语态的基本构成为____________。2．④⑤⑥⑦句为现在完成时的________语态，现在完成时的被动语态的基本构成为________________。3．在现在完成时“have/has dne”结构中，当主语是第________人称单数时，用has，其他情况则用have。
have/has dne
have/has been dne
4．根据④⑤⑥⑦句可得出结论：一般而言，当句子的主语与谓语动词构成________关系时，往往用被动语态形式。5．在①②③句中，由于句子的主语与谓语动词之间构成________关系，故采用现在完成时的主动语态。6．根据以上句子可得知，常与现在完成时搭配的时间状语有_______________________________________，另外，_____________ ________________________________________也是现在完成时的时间标志。
recently, lately, yet, fr nearly tw weeks/fr tw days
since, s far, up t nw, until nw, in the past/last few years/days/minutes等
微点拨　（1）现在完成时的基本含义：①过去发生的动作对现在造成一定的影响。②过去的动作或状态持续到现在并且已经完成。（2）常与现在完成时搭配的时间状语有since， s far， in the past/last few years， lately， recently， up t nw/until nw等。（3）现在完成时的被动语态的构成：have/has been dne。
现在完成时的被动语态主动语态表示主语为动作的执行者；被动语态表示主语为动作的承受者。现在完成时的被动语态强调过去的动作对现在造成的影响或结果，或一个动作从过去一直延续到现在但主语为动作的承受者，表示“……已经被……”。现在完成时的被动语态结构是“主语＋has/have＋been＋过去分词”。❶Hw lng has the machine been used?这台机器使用有多久了？❷The dirty clthes have been washed.脏衣服都已经洗了。
一、现在完成时的被动语态的含义1．动作已经完成(发生)，强调对现在造成的影响或结果；动作从过去一直延续到现在。2．主语与谓语动词之间为被动/动宾关系。❶Our classrm has been cleaned. Yu needn't clean it nw.我们的教室已经打扫过了，你现在没必要再打扫了。❷These flwers have been watered. Yu can g hme nw.这些花已经被浇过水了，你现在可以回家了。
二、现在完成时的被动语态的几种常规用法1．用于不知道动作执行者是谁时。His bike has been stlen.他的自行车被人偷了。(不清楚是被谁偷的)2．用于动作执行者是泛指或不言自明时。Nt a bk in the library has been taken away.图书馆里的书没有一本被人拿走。(没人拿书，泛指)3．用于动作的执行者不是人时。The huse has been washed away by the strm.那栋房子已经被暴风雨冲走了。微点拨　现在完成时的标志词：“fr＋一段时间”，since， already， ever， yet， s far， up t/until nw， in the last/past few years/days/minutes/ mnths等。
三、现在完成时的被动语态的否定和疑问句式1．现在完成时被动语态的否定式由“主语＋ have/has＋nt＋been＋及物动词的过去分词＋其他成分”构成。The car has nt been repaired.这辆汽车还没有修好。
2．现在完成时被动语态的一般疑问式由“Have/Has＋主语＋been＋及物动词的过去分词＋其他成分”构成。—Has her wrk been finished?——她的工作完成了吗？—Yes，it has.——是的，完成了。—Have the cars been repaired?——这些汽车修好了吗？—N，they haven't.——不，还没有。
3．现在完成时被动语态的特殊疑问式由“特殊疑问词＋ have/has＋主语＋been＋及物动词的过去分词＋其他成分”构成。❶Hw lng has her wrk been finished?她的工作完成多久了？❷Wh has been helped by the new cmputer?谁已经得到了这台新计算机的帮助？❸Hw many new wrds have been learned by the students？这些学生已经学会了多少个新单词？
四、现在完成时的被动语态需要注意的问题1．现在完成时的被动语态有两个助动词，即have/has和been，两者缺一不可。2．注意与一般过去时的被动语态的区别：一般过去时的被动语态表示一个被动的动作发生在过去某个时候，不强调对现在的影响；而现在完成时的被动语态的动作或状态尽管发生在过去，但侧重说明该动作或状态对现在造成的影响和结果。❶The huse was built last year.这房子是去年建造的。❷The huse has been built.这房子已经建好了。
3．由finish, buy, start, begin, pst, return, brrw，jin，marry，pen等非延续性动词构成的现在完成时的被动语态不能与表示一段时间的状语如fr fur days，hw lng等连用，若与这些时间状语连用，需要改换动词或时态。译：这本书买了多久了？误：Hw lng has this bk been bught?正：When was this bk bught？/Hw lng have yu had the bk?注意：但这类动词的否定式可表示动作的持续过程，具有延续性，因而可与since或fr引导的时间段连用。N bks have been bught since last week.自上周以来，没有人来买过书。
4．短语动词是一个不可分割的整体，在被动结构中要保持其完整性，不可省略短语动词中的介词或副词。The rphan has been well lked after.这位孤儿一直受到很好的照顾。
Ⅰ.单句语法填空1．Mre than 100 famus films _____________ (shw) in the city since July.2．Since yur wrk ______________ (finish), yu can have a rest nw.3．Hw many cars ________________ (prduce) in the factry since 1990?4．Three new schls _____________ (pen) in ur city in the past five years.
have been shwn
has been finished
have been prduced
have been pened
5．It's the first time that the cmputer ____________ (check) since I bught it.6．Great changes ________ (take) place in my hmetwn in the past ten years.7．—We want t sit at the table near the windw.—I'm srry, but it _________ (take) already.8．It's said that the bridge ____________ (clse) fr repairs fr mnths.9．Our classrm _____________ (clean), yu needn't clean it nw.10．Up t nw, I ____________ (finish) tw-thirds f the wrk.
has been checked
has been clsed
has been cleaned
have finished
Ⅱ.短语填空pay attentin t, , name after, due t, alng with，be regarded as, the number f, fr instance, ，beynd recgnitin1．These data are nt _________ accurate _________ thse taken frm the field research.2．On the Origin f Species explains changes in species _______ natural selectin.3．The painting ____________ ne f the mst significant hrse paintings in the histry f Chinese art.4．____________ the language that describes careers as astrnmer, chemist and bilgist.
is regarded as
Pay attentin t
5．Within the next 80 years, ur lives may be changed ______________ by 3D printing.6．____________ families seeking shelter rse by 17 percent.7．Phillimre Island ____________ its discverer, Sir Rbert Phillimre.8．I was prepared t g ____________ whatever the majrity decided.9．These jbs are mre dangerus than truck driving, ____________， training lins.10．T be frank, if yu dn't stp smking yu cannt __________ the disease.
The number f
is named after
fr instance
Ⅲ.将下列句子变为被动语态1．Jack's bss has always praised him fr his devtin t wrk.→_________________________________________________________2．The prgrammer has prgrammed the rbts t act just like human beings.→_________________________________________________________3．They have put the cmputer int a rbt.→_________________________________________________________4．We have already finished the wrk.→_________________________________________________________
Jack has always been praised by his bss fr his devtin t wrk.
The rbts have been prgrammed t act just like human beings by the prgrammer.
The cmputer has been put int a rbt by them.
The wrk has already been finished by us.
5．He has given the child sme interesting bks.→____________________________________________________________________________________________________________________6．Have they returned the bk yet?→_________________________________________________________7．The typhn has damaged the bridges because f its strng wind.→_________________________________________________________
The child has been given sme interesting bks by him./Sme interesting bks have been given t the child by him.
Has the bk been returned by them yet?
The bridges have been damaged by the typhn because f its strng wind.
Ⅳ.完成句子1．他已被挑选出来参加运动会。He ______________ t take part in the sprts meeting.2．桥的建造还没有完成。The cnstructin f the bridge _________________．3．问题还没有解决。The prblem ________________ yet.4．很抱歉，但这些信件还没有被打印出来。I'm srry, but the letters ________________ yet.5．这项计划已被讨论了近两个小时。The plan _______________ fr nearly tw hurs.
has been selected
has nt been finished
has nt been slved
have nt been typed
has been discussed