高中外研版 (2019)Unit 4 A glimpse of the future备课ppt课件

这是一份高中外研版 (2019)Unit 4 A glimpse of the future备课ppt课件，共28页。PPT课件主要包含了Grammar，are，have， has ，gets，bank on 等内容，欢迎下载使用。
Lk at the sentences frm the reading passage and answer the questins.
1. Why is 50 per cent singular in sentence (a) but plural in sentence (c)?2. What are the subjects in sentences (b) and (d)? Are they singular r plural?
Because in sentence (a), the part “50 per cent” is fllwed by the uncuntable nun “time”, while in sentence (c), the part “50 per cent” is fllwed by the cuntable nun “jb” in its plural frm.
In sentence (b), the part “Every recmmendatin” is the subject. In sentence (d), the part “ nne f us” is the subject. Bth are singular.
Nw lk fr mre sentences fllwing this rule in the reading passage, and summarise the use f subject-verb agreement in yur wn wrds.
Nearly every jb is ptentially at risk in the lng run.
The technlgy yu’re using and enjying tday is a basic frm f AI...
I believe mst f the value f AI lies in its capacity t analyse and interpret vast amunts f data...
Grammar: Subject-verb agreement主谓一致
The by _____ diving.
They _____ diving.
Bth Jack and Tim _____ diving.
All f them _____ diving.
Neither Jack nr Tim _____ walking.
Finish the fllwing exercises:
主谓一致是指主语和谓语在人称和数等方面的一致，当主语是不定代词或含有修饰语时，谓语动词的形式要依据主语所表达的单、复数概念而定，而不仅仅是取决于简单的外在形式。
如果主语本身是可数名词单数或者不可数名词，则谓语动词要用单数形式；Arund 10 percent f the frest is destryed each year. 每年大约有10%的森林被毁。如果主语是可数名词复数，或主语加上修饰语后整体表达的是复数概念，那么谓语动词要用复数形式。Abut ne-third f the bks in the library are dnated by students wh graduated frm the schl. 图书馆里大约三分之一的书都是由这所学校的毕业生捐赠的。
当主语被分数（百分数）、表示量的词汇等修饰时，谓语动词的形式要依据主语本身进行判断
常用的表示“量”的短语后面接名词的谓语情况
a number f / a variety f / varieties f +可数名词复数作主语时，谓语动词用复数形式。a large amunt f +不可数名词，谓语动词用单数； large amunts f +不可数名词， 谓语动词用复数。A number f new huses have been built there.A variety f prducts are n sale nw.A large amunt f mney was spent n the bridge.Large amunts f mney were spent n the bridge.
当主语被不定代词修饰或主语本身是不定代词时，谓语动词的形式需要根据主语加上修饰语后整体表达的意义来进行判断
Every means has been tried ut withut much result. 所有方法都试过了，却没有什么效果。
Practice：1) Each by ______ a prize.2) Many f us _____ gne thrugh regular training.3) Every pssible apprach ______ been tried, but in vain.4) Bth f the instruments _____ nt precise nes.5) Smething _____ ging t happen, and nbdy can stp it frm happening.
all 作主语表示人时，谓语动词用复数；表示物时，谓语动词用单数
All is well that ends well. 结果好一切都好。All are eager t reach an agreement. 大家都急于达成一项协议。
nne 作主语时，谓语动词既可用单数也可用复数，这要取决于说话人的看法
Nne f us seem t have thught f it. 似乎我们全都没有想到这一点。 （此处强调全体，全部都没有想到。）Nne f us has gt a camera. (nne = nt a single ne) 我们都没有照相机。 （此处强调每一个个体，没有一个有照相机的。）
当主语被否定词修饰或主语本身是否定词时，谓语动词一般用单数形式
Nthing else matters t him apart frm his jb. 对他来说，除了工作以外，什么事都无关紧要。Nbdy knws what the future hlds fr us. 没有人知道我们的未来会怎样。Nbdy has gt a ticket. 谁都没有票。Nthing was available. 没有可用的。
Cmplete the passage by chsing the singular r plural frm.
Nwadays，sme cmpanies ffer genetic testing fr children’s talents. A large number f clients have/has been attracted t it. They are parents，eager t knw what talents their children may have in the future. The prcess is simple. Every child prvide/prvides a small sample f bld r bdy tissue. This is/These are analysed. Each f the children is/are given a reprt shwing their pssible talents. A recent example cited n the website is that ne f the testing cmpanies cmpare/ cmpares the talents f twins Bbby and Benny. Bbby was assessed and his talents was/were revealedt be mstly scientific：a 66% chance f success in chemistry and 54% in physics was/were shwn. Meanwhile，Benny’s highest scre was/were shwn t be in an arts subject：the test gave him 68% fr literary studies. Is genetic testing reliable? Sme scientists say that mre evidence is/are needed.
Cmplete the descriptin accrding t the charts, paying attentin t subject-verb agreement.
FUTURE Last week，we asked yu t design yur ideal planet fr peple n Earth t live n in the 22nd century. We have received ver 500 entries and have been amazed by yur imaginatins! Here’s ne f the designs.
Three quarters f the surface is made up f land，while the rest is sea，cvering 25% f the surface. Half f the land is cvered with trees. Residential area and arable land bth accunt fr the same prprtin，20% f the ttal land. The rest is desert， cvering 10% f the ttal land. There are three kinds f peple. Fifty percent f the peple are riginal residents，30% are frm Earth and 20% are frm ther planets.
Describe anther planet fr the future, paying attentin t subject-verb agreement.
The fllwing questins may be f help t yu:Is there sme water fr its residents t use?Is the temperature n that planet suitable fr peple t live in?
Here are sme wrds fr sme planets:Venus: 金星 Mercury: 水星Mars: 火星 Jupiter: 木星 Saturn: 土星
Listening&Speaking
The wrld f tmrrw
Listen t the cnversatin and chse its main idea.
Time travel is dangerus. Talking t peple in the past can change the future.Anything yu say r d in the past can affect the future. 4. Time travel within yur wn lifetime shuld be avided.
Listen again and cmplete the table.
Dn’t talk t anybdytell her 8-year-ld self t buy shares in cmpanies that are prfitable tday she wants t becme rich nt t d thatBe careful nt t break anything.breaking smething culd als cause a paradx and change yur path thrugh life.Never give anything frm ur time t smene in the past.give a present t his fatheranything that desn’t belng t that time may have an impact n smene and cause a paradx.
Nw wrk in pairs. Take turns t be the guide and explain the rules f time travel.
Sentences that may help yu explain the rules:1. There are altgether 3 rules f time travel. The first is ..., the secnd is ..., and the last ne is There are 3 rules f time travel in ttal. The first is ..., the secnd is ..., and the last ne is ... 3. Every turist is suppsed t bear 3 rules f time travel in mind. The first is ..., the secnd is ..., and the last ne is ...
Cmplete the bxes with the expressins frm the cnversatin.
Amazing!Ww!I can’t wait hw ’ll be exciting enugh t...
S，what yu’re saying is ’s OK，isn’t it?Are yu serius?Let me get this straight. Yu mean that...
VcabularyBuilding
Read the passage and put the expressins in bld int the bxes.
within ur lifetimesany time snn the hriznarund the crnerfar ahead f their time
bank nget ur hpes upbund t happen
Cmplete the passage with the expressins in Activity 8.
Wh knws in what exciting ways transprt will change 1 　　　　　　　　? Trains that travel at the speed f tday’s aerplanes may sund 2 　　　　 but scientists are already develping “hyperlp” trains that travel at ver 1，000 km per hur. And althugh we can’t 3 　　　　flying cars being the nrm 4 　　　　　　　　 ，there are plans t intrduce flying taxis that will be statined n rftps arund busy cities. Many cities already have elevated cycle paths and I’m sure that these are 5 　　　　　　　fr many thers arund the wrld. As well as faster，safer and mre cmfrtable transprt being just 6 　　　　　　　　　　　　　　 ，we can als 7 　　　　　　　　abut shrter waiting times， with cmpanies intending t prvide n-demand services.
within ur lifetimes
far ahead f their time
any time sn
bund t happen
n the hrizn/arund the crner
get ur hpes up
Nw wrk in pairs. Talk abut anther aspect f life in the future using the expressins yu have learnt in this sectin.
A: Hw d yu think the schls and the classes in the future?B: I think prbably there will be virtual schls and students arund the glbe wh wn’t have t g t schl.A: Ww. S if there are nt realistic schls, what will the students miss?B: Er ..., they are bund t miss lts f pprtunities t …
Review subject-verb agreement.Think abut anther aspect f life in the future using the expressins yu have learnt in this sectin.If yu have ne dream abut AI that can be realized at nce, what is yur dream?