高中英语外研版 (2019)选择性必修 第三册Unit 4 A glimpse of the future课文内容课件ppt

这是一份高中英语外研版 (2019)选择性必修 第三册Unit 4 A glimpse of the future课文内容课件ppt，共60页。PPT课件主要包含了contents，Grammar，Homework，III，主谓一致，are， is，was，have， has 等内容，欢迎下载使用。
Listening & speaking
Vcabulary building
Grammar: Subject-verb agreement
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.
2.What are the subjects in sentences (b) and (d)? Are they singular r plural?
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.
One thing I think we all agree n, thugh, is that saying “My AI did it!” wn’t be any excuse fr illegal r immral behaviur.
Nearly every jb is ptentially at risk in the lng run.
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。
用法归纳 1: 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，具体如下：
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。
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；
例1：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。
解析：bk 是可数名词，在句中是复数形式，并且在句中着重于书的数量而不是将书视为整体，因此“三分之一的书”表达的意义是复数概念，谓语动词用 are。
例2：Arund 10 per cent f the frest is destryed each year.每年大约有10%的森林被毁。
解析：本句中的 the frest 为可数名词的单数形式，泛指森林，因此“10%的森林”视作一个整体，谓语动词用 is。
例3：A large number f peple have applied fr the jb. 许多人都申请了这份工作。
解析：本句中的 peple 为集体名词，表示复数概念，因此谓语动词用 have。
Practice：1) Fifty percent f the students in ur schl ____ girls.2) Three-furths f the surface f the earth____ sea. 3) Over sixty percent f the city _____ destryed in the war.
解析：1) 主语本身为可数名词复数 students，故用 are。
2) 主语为 surface“表面”，且句中“地球表面的四分之三”为整体概念，故用 is。
3) 主语为 city，在此为可数名词单数，故用 was。
用法归纳 2：常用的表示“量”的短语后面接名词的谓语情况
1) 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.
用法归纳 3：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。
例如：Every means has been tried ut withut much result.所有方法都试过了，却没有什么效果。
解析：means 是方法的意思，every means 强调每一种方法，故谓语动词用单数形式。
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.
用法归纳 4：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，例如：
2) All are eager t reach an agreement. 大家都急于达成一项协议。
1) All is well that ends well. 结果好一切都好。
用法归纳 5：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，如：
1) 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。）
2) 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。）
用法归纳 6：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。例如：
例1：Nbdy has gt a ticket. （谁都没有票。）
例2：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 revealed t 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.
FutureLast 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 per cent f the peple are riginal residents, 30% are frm Earth and 20% are frm ther planets.
Discussin: 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
Listening & speaking: Befre listening
The wrld f tmrrw
D Yu Knw? Time travel culd result in a paradx — an event that cntradicts itself. Fr example, if a persn travelled back in time and prevented an event, that event wuld never have happened; there wuld therefre be n reasn fr the persn t travel back in time t prevent it.
Listen t the cnversatin and chse its main idea.
Crrect answer: 3
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.
RULE 1 1__________________________________● A turist wants t 2___________________________________________________________________.because 3___________________________________.● The guide tld her 4 ______________________.
Dn’t talk t anybdy.
tell her 8-year-ld self t buy shares in cmpanies that are prfitable tday
she wants t becme rich
nt t d that
RULE 2 5__________________________________● The guide said that 6____________________________________________________________________
Be careful nt t break anything.
breaking smething culd als cause a paradx and change yur path thrugh life.
RULE 3 7___________________________________________________________________________● A turist wants t 8_________________________● The guide tld him nt t because 9 ___________ _________________________________________________________________________
Never give anything frm ur time t smene in the past.
give a present t his father.
anything that desn’t belng t that time may have an impact n smene and cause a paradx.
Listening & speaking: Discussin
Nw wrk in pairs. Take turns t be the guide and explain the rules f time travel.
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 ...
Sentences that may help yu explain the rules:
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 ...
Sentences that may help yu explain the rules :
Cmplete the bxes with the expressins frm the cnversatin.
Amazing! Ww! I can’t wait t ... S, what yu’re saying is that ... Hw abut ... Imagine hw excited ...
That’s Ok, isn’t it? Are yu serius? Let me get this straight. Yu mean that ... It’ll be exciting enugh t ...
1. Amazing!
3. I can’t wait t …
4. Imagine hw excited …
5. It’ll be exciting enugh t …
4. Are yu serius?
1. S, what yu’re saying is that
2. Hw abut …
3. That’s OK, isn’t it?
5. Let me get this straight. Yu mean that …
Backgrund Infrmatin
future life
With the AI technlgy develping at such a high speed, ur future life is bund t be quite clrful and dynamic. What aspects f future life will benefit us a lt?
Read the passage and put the expressins in bld int the bxes.
Besides time travel, we have much t lk frward t in the future, thanks t advances in technlgy. One area that is likely t change dramatically within ur lifetimes is medical care. Althugh I wuldn’t bank n patients feeling cnfident abut seeing a rbt
dctr any time sn, I’m sure that AI dctrs are n the hrizn. I think it’s als fair t say that we can get ur hpes up when it cmes t finding cures fr serius diseases, such as cancer. I reckn that nanrbts thatcan eliminate cancerus cells are just arund the
crner. Sme f these ideas may sund far ahead f their time, but I’m sure they’re bund t happen sner r later!
1. within ur lifetimes
2. any time sn
3. n the hrizn
4. arund the crner
5. far ahead f their time
2. get ur hpes up
3. bund 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
within ur lifetimes
far ahead f their time
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_______________________________,
bund t happen
n the hrizn / arund the crner
any time sn
we can als 7_________________ abut shrter waiting times, with cmpanies intending t prvide n-demand services.
get ur hpes up
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.
Nw think abut hw effectively yur partner used these expressins, and what yu culd learn frm him r her.
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 …