資源簡介

(共28張PPT)
Unit 4
A glimpse of the future
Using language
Subject-verb agreement(2)
BY MICHELLE
Grammar
01
Look at the sentences from the reading passage and answer the questions.
a. … 50 per cent of my time was spent researching new restaurants.
b. Every recommendation she gives me is great ...
c. … almost 50 per cent of US jobs are at risk from automation in the next 20 years.
d. … none of us is prepared for the challenges of AI.
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 or plural
Because in sentence (a), the part “50 per cent” is followed by the uncountable noun “time”, while in sentence (c), the part “50 per cent” is followed by the countable noun “job” in its plural form.
In sentence (b), the part “Every recommendation” is the subject.
In sentence (d), the part “ none of us” is the subject. Both are singular.
Now look for more sentences following this rule in the reading passage, and summarise the use of subject-verb agreement in your own words.
Nearly every job is potentially at risk in the long run.
The technology you’re using and enjoying today is a basic form of AI...
I believe most of the value of AI lies in its capacity to analyse and interpret vast amounts of data...
Grammar: Subject-verb agreement
主謂一致
The boy _____ diving.
They _____ diving.
Both Jack and Tim _____ diving.
All of them _____ diving.
Neither Jack nor Tim _____ walking.
is
are
are
is
are
Finish the following exercises:
主謂一致是指主語和謂語在人稱和數等方面的一致，當主語是不定代詞或含有修飾語時，謂語動詞的形式要依據主語所表達的單、復數概念而定，而不僅僅是取決于簡單的外在形式。
如果主語本身是可數名詞單數或者不可數名詞，則謂語動詞要用單數形式；
Around 10 percent of the forest is destroyed each year. 每年大約有10%的森林被毀。
如果主語是可數名詞復數，或主語加上修飾語后整體表達的是復數概念，那么謂語動詞要用復數形式。
About one-third of the books in the library are donated by students who graduated from the school. 圖書館里大約三分之一的書都是由這所學校的畢業生捐贈的。
當主語被分數（百分數）、表示量的詞匯等修飾時，謂語動詞的形式要依據主語本身進行判斷
常用的表示“量”的短語后面接名詞的謂語情況
a number of / a variety of / varieties of +可數名詞復數作主語時，謂語動詞用復數形式。
a large amount of +不可數名詞，謂語動詞用單數；
large amounts of +不可數名詞， 謂語動詞用復數。
A number of new houses have been built there.
A variety of products are on sale now.
A large amount of money was spent on the bridge.
Large amounts of money were spent on the bridge.
當主語被不定代詞修飾或主語本身是不定代詞時，謂語動詞的形式需要根據主語加上修飾語后整體表達的意義來進行判斷
Every means has been tried out without much result. 所有方法都試過了，卻沒有什么效果。
Practice：
1) Each boy ______ a prize.
2) Many of us _____ gone through regular training.
3) Every possible approach ______ been tried, but in vain.
4) Both of the instruments _____ not precise ones.
5) Something _____ going to happen, and nobody can stop it from happening.
have
has
are
gets
is
all 作主語表示人時，謂語動詞用復數；表示物時，謂語動詞用單數
All is well that ends well. 結果好一切都好。
All are eager to reach an agreement. 大家都急于達成一項協議。
none 作主語時，謂語動詞既可用單數也可用復數，這要取決于說話人的看法
None of us seem to have thought of it. 似乎我們全都沒有想到這一點。
（此處強調全體，全部都沒有想到。）
None of us has got a camera. (none = not a single one) 我們都沒有照相機。
（此處強調每一個個體，沒有一個有照相機的。）
當主語被否定詞修飾或主語本身是否定詞時，謂語動詞一般用單數形式
Nothing else matters to him apart from his job.
對他來說，除了工作以外，什么事都無關緊要。
Nobody knows what the future holds for us.
沒有人知道我們的未來會怎樣。
Nobody has got a ticket.
誰都沒有票。
Nothing was available.
沒有可用的。
Complete the passage by choosing the singular or plural form.
Nowadays，some companies offer genetic testing for children’s talents. A large number of clients have/has been attracted to it. They are parents，eager to know what talents their children may have in the future. The process is simple. Every child provide/provides a small sample of blood or body tissue. This is/These are analysed. Each of the children is/are given a report showing their possible talents. A recent example cited on the website is that one of the testing companies compare/ compares the talents of twins Bobby and Benny. Bobby was assessed and his talents was/were revealedto be mostly scientific：a 66% chance of success in chemistry and 54% in physics was/were shown. Meanwhile，Benny’s highest score was/were shown to be in an arts subject：the test gave him 68% for literary studies. Is genetic testing reliable Some scientists say that more evidence is/are needed.
Complete the description according to the charts, paying attention to subject-verb agreement.
FUTURE
Last week，we asked you to design your ideal planet for people on Earth to live on in the 22nd century. We have received over 500 entries and have been amazed by your imaginations! Here’s one of the designs.
Three quarters of the surface is made up of land，while the rest is sea，covering 25% of the surface.
Half of the land is covered with trees. Residential area and arable land both account for the same proportion，20% of the total land. The rest is desert， covering 10% of the total land.
There are three kinds of people. Fifty percent of the people are original residents，30% are from Earth and 20% are from other planets.
Describe another planet for the future, paying attention to subject-verb agreement.
The following questions may be of help to you:
Is there some water for its residents to use
Is the temperature on that planet suitable for people to live in
Here are some words for some planets:
Venus: 金星 Mercury: 水星
Mars: 火星 Jupiter: 木星 Saturn: 土星
Listening&
Speaking
02
The world of tomorrow
Did You Know
Time travel could result in a paradox—an event that contradicts itself. For example，if a person travelled back in time and prevented an event，that event would never have happened；there would therefore be no reason for the person to travel back in time to prevent it.
Listen to the conversation and choose its main idea.
Time travel is dangerous.
Talking to people in the past can change the future.
Anything you say or do in the past can affect the future.
4. Time travel within your own lifetime should be avoided.
Listen again and complete the table.
Don’t talk to anybody
tell her 8-year-old self to buy shares in companies that are profitable today
she wants to become rich
not to do that
Be careful not to break anything.
breaking something could also cause a paradox and change your path through life.
Never give anything from our time to someone in the past.
give a present to his father
anything that doesn’t belong to that time may have an impact on someone and cause a paradox.
Now work in pairs. Take turns to be the guide and explain the rules of time travel.
Sentences that may help you explain the rules:
1. There are altogether 3 rules of time travel. The first is ..., the second is ..., and the last one is ...
2. There are 3 rules of time travel in total. The first is ..., the second is ..., and the last one is ...
3. Every tourist is supposed to bear 3 rules of time travel in mind. The first is ..., the second is ..., and the last one is ...
Complete the boxes with the expressions from the conversation.
Amazing!
Wow!
I can’t wait to ...
So, what you’re saying is that ...
How about ...
Imagine how excited ...
That’s Ok, isn’t it
Are you serious
Let me get this straight. You mean that ...
It’ll be exciting enough to ...
Expressing excitement Asking for confirmation
Amazing!
Wow!
I can’t wait to...
Imagine how excited...
It’ll be exciting enough to...
So，what you’re saying is that...
How about...
That’s OK，isn’t it
Are you serious
Let me get this straight. You mean that...
Vocabulary
Building
03
Read the passage and put the expressions in bold into the boxes.
Besides time travel，we have much to look forward to in the future，thanks to advances in technology. One area that is likely to change dramatically within our lifetimes is medical care. Although I wouldn’t bank on patients feeling confident about seeing a robot doctor any time soon，I’m sure that AI doctors are on the horizon. I think it’s also fair to say that we can get our hopes up when it comes to finding cures for serious diseases，such as cancer. I reckon that nanorobots that can eliminate cancerous cells are just around the corner. Some of these ideas may sound far ahead of their time，but I’m sure they’re bound to happen sooner or later!
Expressions about time Expressions about expectation
within our lifetimes
any time soon
on the horizon
around the corner
far ahead of their time
bank on
get our hopes up
bound to happen
Complete the passage with the expressions in Activity 8.
Who knows in what exciting ways transport will change 1 　　　　　　　　 Trains that travel at the speed of today’s aeroplanes may sound 2 　　　　
but scientists are already developing “hyperloop” trains that travel at over 1，000 km per hour. And although we can’t 3 　　　　flying cars being the norm 4 　　　　　　　　 ，there are plans to introduce flying taxis that will be stationed on rooftops around busy cities. Many cities already have elevated cycle paths and I’m sure that these are 5 　　　　　　　for many others around the world. As well as faster，safer and more comfortable transport being just 6 　　　　　　　　　　　　　　 ，we can also 7 　　　　　　　　about shorter waiting times， with companies intending to provide on-demand services.
within our lifetimes
far ahead of their time
bank on
any time soon
bound to happen
on the horizon/around the corner
get our hopes up
Now work in pairs. Talk about another aspect of life in the future using the expressions you have learnt in this section.
A: How do you think the schools and the classes in the future
B: I think probably there will be virtual schools and students around the globe who won’t have to go to school.
A: Wow. So if there are not realistic schools, what will the students miss
B: Er ..., they are bound to miss lots of opportunities to …
Review subject-verb agreement.
Think about another aspect of life in the future using the expressions you have learnt in this section.
If you have one dream about AI that can be realized at once, what is your dream
THANKS FOR WATCHING

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