Smart cities are coming. And you can be sure ...

Smart cities are coming. And you can be sure that hackers(黑客) won’t be very far behind.

We’ve already gotten a glimpse of that future, as cities across the globe start to use technology to connect their services and residents in ways that was science fiction just a few years ago. They are using sensors to collect data — such as traffic, garbage collecting, and road conditions —and then using that data to deliver services to more people and more efficiently.

But this rush to become a smart city has a major drawback: The more connected a city is, the easier it is to cyber-attacks. Hackers have, in recent years, effectively held cities hostage through ransom ware(赎金器), sometimes damaging critical systems for months at a time. The damage can cost millions to repair, as Baltimore and Atlanta have discovered.

And this is just the beginning. As cities add connectivity to their streetlights, power grids, dams, transit lines and other services, they are adding more targets that have the potential to be hacked. What’s more, as additional information on residents is collected, officials worry the result —lots of data could attract nation-states or terrorists who could incorporate the data into physical and cyber war.

What cyber security lesson can’t be taught in this hack? For example: Don’t open email attachments from unfamiliar sources; don’t click on unrecognized links; don’t leave sensitive information visible on the walls or surfaces of your office. But let’s just stick to the most important lesson: The information you share on social media can be used to profile and target you, whether that’s by engineering click bait(点击诱饵) aimed at your particular interests, guessing your password based on your birthday or figuring out your schedule and travels so that an intruder can access your home or office.

Wednesday, September 18, 2019 THE WALL STREET JOURNAL.

1.What did people use to think of smart cities?

A.It was the product of science. B.It was bound to be popular.

C.It existed in imagination. D.It improved people’s life.

2.What does the author intend to do in Paragraph 3?

A.Introduce the harm of hackers. B.Show the danger of a smart city.

C.Add some background information. D.Summarize the previous paragraphs.

3.What is officials’ attitude to big data?

A.It is convenient to provide service. B.It is certain to bring about revolution.

C.There are actually potential dangers. D.There’s competition in high technology.

4.What does the underlined word "profile" in Para. 5 mean?

A.Describe. B.Protect. C.Pursue. D.Fund.

高三英语阅读理解中等难度题查看答案及解析

—Are you sure that you are      satisfied with this job?

—Yes.Nothing can be better.

高三英语单项填空简单题查看答案及解析

—I can drive you home.

—____ , but are you sure it’s not too much trouble?

A. That would be great　　 　 　 B. Don’t bother

C. I’m afraid not　　　　 　　 　 D. Take care

高三英语单项填空中等难度题查看答案及解析

—I can drive you home.

—____ , but are you sure it’s not too much trouble?

A.That would be great B.Don’t bother

C.I’m afraid not D.Take care

高三英语单项填空简单题查看答案及解析

—I can drive you home.

—____ , but are you sure it’s not too much trouble?

A. That would be great　 　 B. Don’t bother

C. I’m afraid not　　　　　 D. Take care

高三英语单项填空中等难度题查看答案及解析

Visitor Oyster cards are electronic smart cards that come fully charged with credit. Whether you’re making a one-off trip to London or you’re a regular visitor, using an Oyster travel smart card is the easiest way to travel around the city’s public transport network. Simply touch the card on the yellow card reader at the doors when you start and end your journey.

Advantages of a Visitor Oyster Card

A Visitor Oyster card is one of the cheapest ways to pay for single journeys on the bus, Tube, DLR, tram, London Overground and most National Rail services in London:

● Save time—your card is ready to use as soon as you arrive in London.

● It’s more than 50% cheaper than buying a paper travel card or single tickets with cash.

● There is a daily price cap—once you have reached this limit, you won’t pay any more.

● Enjoy special offers and promotions at leading London restaurants, shops and entertainment venues—plus discounts on the Emirates Air Line cable car and Thames Clippers river buses.

Buy a Visitor Oyster card

Buy a Visitor Oyster card before you visit London and get it delivered to your home address. A card costs￡3 (non-refundable) plus postage. Order online and arrive with your Oyster in hand! You can also buy a Visitor Oyster card from Gatwick Express ticket offices at Gatwick Airport Station and on board Eurostar trains travelling to London.

Add Credit to Your Visitor Oyster Card

You can choose how much credit to add to your card. If you are visiting London for two days, you can start with ￡20 credit. If you run out of credit, add credit at the following locations:

● Touch screen ticket machines in Tube, DLR, London Overground and some National Rail stations.

● Around 4,000 Oyster Ticket Stops found in newsagents and small shops across London.

● TFL Visitor and Travel Information Centers.

● Tube and London Overground station ticket offices.

● Emirates Air Line terminals.

1.When can you use your Visitor Oyster Card?

A. After you become a regular visitor.

B. Once you arrive in London.

C. Only when you end your journey.

D. Before you leave home.

2.What can we learn about the Visitor Oyster card?

A. It can reach you before your journey to London.

B. It requires you to pay as much as the daily price cap.

C. It can provide you a 50% discount at a London shop.

D. It can be delivered to your home address free of charge.

3. Where can you add credit to your Visitor Oyster card?

A. On the Internet.

B. On Eurostar trains.

C. At a Tube station ticket office.

D. At Gatwick Express ticket offices.

高三英语阅读理解中等难度题查看答案及解析

Part I

If you are hunting a chance to improve yourself in English, TOP ENGLISH CITY will be a smart choice. We are members of "the International Language Workshop" and enjoy both of the good honor in English teaching and high quality of our teaching team. We are devoted to providing affordable, excellent English training programs for those who want to improve both their English knowledge and their language skills.

In TOP ENGLISH CITY, you will be a top English-speaker among your competitors and enjoy the advantage that your competitors have not. You will be proud of being a member of TOP ENGLISH CITY.

Courses designed:

Basic Studies… Sat. 8:00-10:00 a. m.

Intermediate（中级）Spoken English… Sun. 8:00-10:00 a. m.

Standard Spoken English… Sat. 8:00-10:00 a.m.

Basic Business English… Sun.8:00-10:00 a.m.

Intermediate Business English… Sun. 7:00-9:00 p.m.

TOEFL Super Studies… Sun. 7:30-9:30 p.m.

Children's Weekend… Sat. &. Sun. 8:00 a.m. -5:00 p.m.

For more information, please contact:

Room 806 American Plaza Tianhexi Rd, 510150 Guangzhou

Tel: 86668888-8806

Part II

ENGLISH SALON

A place for you to practise your English, to exchange your English learning experiences, to know more about the culture of English-speaking countries, to make more friends who can speak very good English.

You will have free talks, famous English films and songs appreciation, English lectures and games; all are for you to improve yourself in English in the special, full-of-fun Salon.

How to Join:

We are a group with membership system, so if you want to join our group, please make an application to the Tianhe Office of Top English City, filling in the applying forms. You will be given a salon ID card, and becomes our member.

The Qualifications(条件):

You must be fluent in English-speaking or / and an English lover. Those who are now learning English in the Top English City will be advantageous.

For more information, please contact:

Mr Jiu Chan           at: 47129198

English Salon, your best friend! Join Right Now!

1.Which of the following can be the best title for Part I?

A. Top English, your smart choice!

B. If you want to learn English, we can teach you!

C. Top English, the best English!

D. We have what you want!

2.If you work in a joint Venture(合资)Company, you probably take the course:

A. Standard Spoken English                   B. Intermediate Business English

C. TOEFL Super Studies                      D. Children's Weekend

3.Which of the following courses can be learned by the same person?

A. Basic Studies and Standard Spoken English.

B. Intermediate Spoken English and Basic Business English.

C. Standard Spoken English and TOEFL Super Studies.

D. Intermediate Business English and TOEFL Super Studies.

4.If you want to join the English Salon, you should at least        .

A. be a university graduate

B. be a student learning English in the Top English City

C. be an English lover or can speak English well

D. make more friends and know more about the culture of the English

高三英语阅读理解中等难度题查看答案及解析

Part I

If you are hunting a chance to improve yourself in English, TOP ENGLISH CITY will be a smart choice．We are members of "the International Language Workshop" and enjoy both of the good honor in English teaching and high quality of our teaching team．We provide affordable, excellent English training programs for those who want to improve both their English knowledge and their language skills．

In TOP ENGLISH CITY, you will be a top English-speaker among your competitors and enjoy the advantage that your competitors have not．You will be proud of being a member of TOP ENGLISH CITY．

Courses designed:

Basic Studies… Sat．8:00-10:00 a．m．

Intermediate（中级）Spoken English… Sun．8:00-10:00 a．m．

Standard Spoken English… Sat．8:00-10:00 a．m．

Basic Business English… Sun．8:00-10:00 a．m．

Intermediate Business English… Sun．7:00-9:00 p．m．

TOEFL Super Studies… Sun．7:30-9:30 p．m．

Children's Weekend… Sat．&．Sun．8:00 a．m．-5:00 p．m．

For more information, please contact:

Room 807 American Plaza Tianhexi Rd, 510150 Guangzhou

Tel: 86668888-8807

Part II

ENGLISH SALON

A place for you to practise your English, to exchange your English learning experiences, to know more about the culture of English-speaking countries, to make more friends who can speak very good English．

You will have free talks, famous English films and songs appreciation, English lectures and games; all are for you to improve yourself in English in the special, full-of-fun Salon．

How to Join:

We are a group with membership system, so if you want to join our group, please make an application to the Tianhe Office of Top English City, filling in the applying forms．You will be given a salon ID card, and becomes our member．

The Qualifications（条件）:

You must be fluent in English-speaking or / and an English lover．Those who are now learning English in the Top English City will be advantageous．

For more information, please contact:

Mr Jiu Chan           at: 47129198 English Salon, your best friend! Join Right Now!

1.Which of the following can be the best title for Part I_________?

2.If you work in a joint Venture（合资） Company, you probably take the course________．

3.Which of the following courses can be learned by the same person________?

4.If you want to join the English Salon, you should at least ________．

高三英语阅读理解中等难度题查看答案及解析

Part I

If you are hunting a chance to improve yourself in English, TOP ENGLISH CITY will be a smart choice. We are members of "the International Language Workshop" and enjoy both of the good honor in English teaching and high quality of our teaching team. We provide affordable, excellent English training programs for those who want to improve both their English knowledge and their language skills.

In TOP ENGLISH CITY, you will be a top English-speaker among your competitors and enjoy the advantage that your competitors have not. You will be proud of being a member of TOP ENGLISH CITY.

Courses designed:

Basic Studies… Sat. 8:00-10:00 a. m.

Intermediate（中级）Spoken English… Sun. 8:00-10:00 a. m.

Standard Spoken English… Sat. 8:00-10:00 a.m.

Basic Business English… Sun.8:00-10:00 a.m.

Intermediate Business English… Sun. 7:00-9:00 p.m.

TOEFL Super Studies… Sun. 7:30-9:30 p.m.

Children's Weekend… Sat. &. Sun. 8:00 a.m. -5:00 p.m.

For more information, please contact:

Room 807 American Plaza Tianhexi Rd, 510150 Guangzhou

Tel: 86668888-8807

Part II

ENGLISH SALON

A place for you to practise your English, to exchange your English learning experiences, to know more about the culture of English-speaking countries, to make more friends who can speak very good English.

You will have free talks, famous English films and songs appreciation, English lectures and games; all are for you to improve yourself in English in the special, full-of-fun Salon.

How to Join:

We are a group with membership system, so if you want to join our group, please make an application to the Tianhe Office of Top English City, filling in the applying forms. You will be given a salon ID card, and becomes our member.

The Qualifications（条件）:

You must be fluent in English-speaking or / and an English lover. Those who are now learning English in the Top English City will be advantageous.

For more information, please contact:

Mr Jiu Chan           at: 47129198 English Salon, your best friend! Join Right Now!

1.Which of the following can be the best title for Part I_________?

A. Top English City, your smart choice!      B. If you want to learn English, we can teach you!

C. Top English City, the best English!           D. We have what you want!

2.If you work in a joint Venture(合资) Company, you probably take the course________.

A. Standard Spoken English                         B. Intermediate Business English

C. TOEFL Super Studies                              D. Children's Weekend

3.Which of the following courses can be learned by the same person________?

A. Basic Studies and Standard Spoken English.

B. Intermediate Spoken English and Basic Business English.

C. Standard Spoken English and TOEFL Super Studies.

D. Intermediate Business English and TOEFL Super Studies.

4.If you want to join the English Salon, you should at least ________.

A. be a university graduate

B. be a student learning English in the Top English City

C. be an English lover or can speak English well

D. make more friends and know more about the culture of the English

高三英语阅读理解中等难度题查看答案及解析

Sometimes people come into your life and you know right away that they are meant to be there.1. They teach you a lesson，or help you figure out who you are or who you want to become.

2.They may be a roommate，a neighbor，a professor，a friend，a lover，or even a complete stranger.Sometimes things happen to you that may seem horrible at first，but later you will find that without those difficulties you would have never realized your potential.3.It would be safe and comfortable，but dull and completely pointless.

The people you meet who affect your life，help to create who you are and who you become.4.In fact，they are sometimes the most important ones.

If someone loves you，give love back to them not only because they love you，but also because they are teaching you to love and how to open your heart and eyes to things.

5.They have helped you learn about trust and the importance of being cautious to whom you open your heart to.

Make every day count.Appreciate every moment.

A．They serve some sort of purpose.

B．Learn a lesson in life each day that you live.

C．Even the bad experiences can be learned from.

D．You never know who these people may be.

E．If someone hurts you，or breaks your heart，forgive them.

F．Without these small tests，life would be like a smooth road to nowhere.

G．If you don't believe in yourself，it will be hard for others to believe in you.

高三英语七选五中等难度题查看答案及解析