What do you use to unlock your cellphone? A p...

What do you use to unlock your cellphone? A password? A fingerprint? Or simply a glance (一瞥)?

On Sept 12, 2017, Apple introduced its iPhone X, which has an eye-catching feature － Face ID.

With Face ID, you can unlock your new iPhone by just looking at it. It is powered by a camera system TrueDepth in the front of the iPhone X.

When the camera system sees a person’s face, it uses 30,000 unseen dots (点) to “map” (勾画) the shape and outline of the face. A model of the face will then be created and stored in the phone.

The next time the person looks at the iPhone X, the same dots are mapped onto his or her face and compared to the stored model. If the two match, then the phone unlocks. This happens in less than a second.

Apple says the system is smart. If you change your hairstyle, put on sunglasses or makeup, or use the phone in the dark, Face ID still works.

Although the technology sounds amazing, there are still concerns. For example, will Face ID work for twins? What if someone uses a photo in front of the iPhone X?

According to Apple, the chance of others to unlock your iPhone X using Face ID is one in a million. Face ID can tell the difference between twins, but the error rating (出错率) rises.

Apple also emphasizes (强调) that Face ID is smart enough only to work when you want it to. It only unlocks when you open your eyes and stare at(盯住) it. So the phone won’t unlock if you are just glancing at the phone to know the time. It won’t work either if someone puts the phone at your sleeping face or your photo.

1.Face ID helps iPhone X users to _________.

A.take pictures more quickly B.make their photos more beautiful

C.unlock their cell phones D.create their face models easily

2.How does the camera system of Face ID work?

A.It compares the user’s face with the stored face model in the phone.

B.It remembers users’ faces by taking their pictures.

C.It uses a map to store face models of its users for later use.

D.It matches the users’ faces with unseen dots stored in the system.

3.The iPhone X users may not unlock their phones when _________.

A.they have changed their hairstyles B.they glance the phone for the time

C.they use it without turning on the lights D.they wear makeup

4.The underlined word “concerns” in Paragraph 7 probably means _________.

A.achievements B.worries C.reward D.knowledge

5.What is the main idea of the story?

A.We can unlock a smart phone in three different ways.

B.Apple’s iPhone X can’t tell the differences between different faces.

C.People don’t believe it’s safe to use Face ID.

D.Face ID is a program to unlock the iPhone X.

九年级英语阅读单选简单题查看答案及解析

Do you use a calendar to help you organize your life? By listing what your need to do on any special day, you can make sure to keep all for your meeting and not worry whether you’ve forgotten something, Calendars are also useful for reminding (提醒) people what day a certain holiday is on and what days you might have off from work. Besides, they are used for planning fun things like vacations and outings.

A calendar is usually divided into twelve parts, and each one stands for a month with all the days laid out in a grid-like (网格状的) form. A block of space usually is for a day, and there is enough space for you to write down what you need to do that certain day. You probably use all different kinds of calendars. A calendar on your cell phone screen is easy to use, and so is a large paper calendar that hangs on your wall.

1.What is the main idea of the first paragraph？

A.What calendars are used to do. B.Why people worry about time.

C.Who reminds people to have a holiday. D.How people plan vacations and outings.

2.Which of the following is true according to the passage？

A.A calendar is usually divided into two parts.

B.Many kinds of calendars have no grid-like forms.

C.People often write down their special days on the wall.

D.A calendar on the mobile phone is as easy as a paper calendar to use.

九年级英语阅读单选中等难度题查看答案及解析

Do you often use a cellphone? Do you take the subway to school every day? These items make our modern life easier. But do you know how we should behave properly while using them? The following suggestions might be helpful. Fo r  cellphone users

◆Keep your voice down when you make a phone call in public. Shouting on the phone may make others feel uncomfortable. And you’d better not use it during an appointment（约会）.

◆Stop sending messages or playing games with your cellphone at a dinner or a party. It’s a good time to communicate（交流）with your family and friends.

◆Don’t make or answer a call while driving. It is not only very dangerous for both you and your passengers but also against the law. For subway passengers

◆You are supposed to wait in line while buying tickets and getting on the subway.

◆You’re not allowed to eat, drink or smoke on the subway train. The smell and noise may trouble others. It’s our duty to keep the train clean and tidy. Besides, smoking is bad for health.

◆ You can’t take pets on the train. As we all know, animals may spread diseases（传播疾病）and get the train dirty.

◆ You’d better not lie across the subway seats even if the train isn’t crowded. Offering your seat to someone who needs it is regarded as good manners.

　　　　　　　　　　　　　 Titles：Some etiquette in modern life

九年级英语任务型阅读困难题查看答案及解析

Do you use a calendar to help you organize your life? By listing what you need to do on any special day, you can make sure to keep all for your appointments and not worry whether you've forgotten something. Calendars are also useful for reminding(提醒) people what day a certain holiday is on and what days you might have off from work. Besides, they are used for planning fun things like vacations and outings.

A calendar is usually divided into twelve parts, and each one stands for a month with all the days laid out in a grid-like (网格状的) form. A block of space usually is for a day, and there is enough space for you to write down what you need to do on that certain day. You probably use all different kinds of calendars. A calendar on your cell phone screen is easy to use, and so is a large paper calendar that hangs on your wall.

Here is one page of Mary's calendar and it shows her plans in May.

1.People use calendars to _______.

①make plans for vacations and outings

②buy birthday presents on the cell phones

③help remember their appointments

④remind themselves of the holidays and the days off

A. ①②③

B. ①②④

C. ①③④

D. ②③④

2.From Paragraph 2 we can know ________.

A. what a calendar looks like

B. what a calendar is used for

C. how we draw a calendar on the wall

D. how we organize our life with a calendar

3.When is Greg's birthday?

A. Friday May 11.

B. Sunday May 13.

C. Friday May 18.

D. Sunday May 20.

4.How many full days will Mary spend in London?

A. Two days.

B. Three days

C. Four days.

D. Five days.

九年级英语阅读单选中等难度题查看答案及解析

Some etiquette（礼仪）in modern life

Do you often use a cellphone? Do you take the subway to school every day? These items make our modern life easier. But do you know how we should behave properly while using them? The following suggestions might be helpful.

For cellphone users

◆Keep your voice down when you make a phone call in public.

Shouting on the phone may make others feel uncomfortable. And you’d better not use it during an appointment（约会）.

◆Stop sending messages or playing games with your cellphone at a dinner or a party. It’s a good time to communicate（交流）with your family and friends.

◆Don’t make or answer a call while driving. It is not only very dangerous

for both you and your passengers but also against the law.

For subway passengers

◆You are supposed to wait in line while buying tickets and getting on the subway.

◆You’re not allowed to eat, drink or smoke on the subway train. The smell and noise may trouble others. It’s our duty to keep the train clean and tidy. Besides, smoking is bad for health.

◆ You can’t take pets on the train. As we all know, animals may spread

diseases（传播疾病）and get the train dirty.

◆ You’d better not lie across the subway seats even if the train isn’t crowded. Offering your seat to someone who needs it is regarded as good manners.

Titles：Some etiquette in modern life

九年级英语其他题困难题查看答案及解析

Did you forget your password (密码) or your ID? Well, you’ll never forget your face. Using your face as your ID is quick and convenient. You could take the subway or get on the plane with just your face alone. This is how facial recognition (人脸识别) works. It has also been used to catch criminals. The American pop singer Taylor Swift even used the technology to find out the person who did something bad to her at her concerts.

In China, facial recognition systems(系统) have been used in many areas. In Zhengzhou, people can now get on the subway by using facial recognition technology. They just need to connect their online payment systems to the subway’s smartphone app. Students at certain schools can pass through the school’s gates by scanning (扫描) their face.

However, there are no laws to control the use and collection of facial information now, according to Zhao Zhanling, a researcher at the China University of Political Science and Law. Many people are worried about the collection and use of the information by governments and companies. Why is it necessary to collect data about your face and what will the data (数据) be used for? These are some common questions about the facial recognition.

“I feel uncomfortable because I don’t know how the company is using my facial information or whether it will be leaked. If so, my secret information will become known to the public.” Feng Yi, a tourism company worker, said about Zhengzhou’s subway smartphone app. Leaks are a problem that worries people because companies have always failed to protect users’ data. When someone steals your personal information, you can change your bank card and password, but can you change your face when your facial information is stolen?

As facial recognition is used more and more in our daily lives - from schools and subways to street comers and smartphones - we must ask ourselves whether or not this new technology is worth the risk.

1.The example of Taylor Swift is to ________.

A.show the popularity of facial recognition among pop stars

B.introduce tire advantage of facial recognition further

C.describe people’s fears over facial recognition

2.According to Paragraph 2, facial recognition technology can’t be used to ________.

A.pay to take the subway

B.pass through the school’s gates

C.invent an online payment app

3.What does the underlined word “leaked” in Paragraph 4 mean?

A.泄露 B.收集 C.拦截

4.From the passage, we know that ________.

A.some laws have been made to control the use of facial information

B.it may be risky to use the new technology according to the writer

C.many people think it necessary to collect data about their face

5.Which is the best title of the passage?

A.Your Face Is Your Best ID

B.Wide Use of Facial Recognition Technology

C.Facial Recognition - Progress and Challenge

九年级英语阅读单选中等难度题查看答案及解析

Do you usually forget your password，your ID or your keys？Well，you'll never forget your face. With the quick development of technology，using your face as your ID is quick and convenient.1.This is how facial recognition（人脸识别）works. It has also been used to catch criminals.

In China，facial recognition systems have been used in many areas. 2.They just need to connect their online payment systems（系统）with the subway's smartphone app. Students at Peking University can pass through the school's gate with their face，too. However，there are no laws to regulate（规范）the use and collection of facial information，according to a famous lawyer at the China University of Political Science and Law.3.Why is it necessary to collect data（数据）about your face and what will the data be used for？

"People may feel uncomfortable with the worries. 4." said Feng Yi，a tourism company staff. Leaks are possible because there is a long history of companies failing to protect users' data. 5.However，can you change your face when your facial information is stolen？As facial recognition is used more and more in our daily lives，we must ask ourselves whether or not this new technology is worth the risk.

A. Nobody is allowed to collect people's facial details

B. You could take the subway or board a flight with just your face alone.

C. In Zhengzhou，people can now get on the subway by using facial recognition technology.

D. I don't know how the company is using my facial details or whether they will be leaked（泄漏）.

E. When someone steals your personal information，you can change your bank card and password.

F. Many citizens are worried about the collection and use of this information by governments and companies.

九年级英语补全短文6选5中等难度题查看答案及解析

Do you know how many numbers there are in your cellphone number? Your cellphone number has 11 digits(数字). You may sometimes find it hard to remember your number. China has the longest cellphone numbers in the world, longer than the US or Australia. Why is that?

The 11 digits can be divided into three parts. Each part has a different meaning. The first three numbers tell you which mobile phone service provider you are using. For example, 135 is for the China Mobile Communications Corporation and 186 is for China Unicom. The fourth to the seventh digits tell you which area the number is registered (注册) in.　 And the last four digits are random. You may get the last numbers that you like or not.

The main reason for using 11 digits is that we have the largest population in the world. We once had 10 numbers. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999.

Cellphone numbers can be recycled. Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven't contacted (联系) for a long time , you may find its owner has changed.

Besides China, Britain and Japan also use 11-digit cellphone numbers. But their numbers always start with 0. So they cannot create as many numbers as we can. Countries like the US, Australia and India use cellphone numbers with 10 digits, Canada's cellphone number are perhaps the world ' s shortest. They use seven digits.

1.Among the 11 digits, which digits can tell where the cellphone number is registered?

A. The first to the fourth digits.　　 B. The third to the sixth digits.

C. The fourth to the seventh digits.　　 D. The fifth to the eighth digits.

2.What does the underlined word "random" mean?

A. 有规则的　　 B. 奇怪的　　 C. 随机的　　 D. 事先安排的

3.Which country has the cellphone number with ten digits?

A. Britain.　　 B. Japan.　　 C. Canada.　　 D. India.

4.What can we learn from the last two paragraphs?

A. Cellphone numbers in Britain start with 0.

B. Cellphone numbers can be divided into 4 parts.

C. A canceled number can be reused after a month.

D. The cellphone number in Australia is the shortest.

5.What ' s the best title of this text?

A. What the meaning of cellphone numbers is?

B. Why our cellphone numbers have 11 digits?

C. When the first cellphone number was created?

D. Which country has the longest cellphone number?

九年级英语阅读单选中等难度题查看答案及解析

任务型阅读，阅读下面的材料。然后在表格。每空不超过3 个单词。

Some etiquette（礼仪）in modern life

Do you often use a cellphone? Do you take the subway to school every day? These items make our modern life easier. But do you know how we should behave properly while using them? The following suggestions might be helpful.

For cellphone users

◆Keep your voice down when you make a phone call in public. Shouting on the phone may make others feel uncomfortable. And you’d better not use it during an appointment（约会）.

◆Stop sending messages or playing games with your cell phone at a dinner or a party. It’s a good time to communicate（交流）with your family and friends.

◆Don’t make or answer a call while driving. It is not only very dangerous for both you and your passengers but also against the law.

For subway passengers

◆You are supposed to wait in line while buying tickets and getting on the subway.

◆You’re not allowed to eat, drink or smoke on the subway train. The smell and noise may trouble others. It’s our duty to keep the train clean and tidy. Besides, smoking is bad for health.

◆ You can’t take pets on the train. As we all know, animals may spread

diseases（传播疾病）and get the train dirty.

◆ You’d better not lie across the subway seats even if the train isn’t crowded. Offering your seat to someone who needs it is regarded as good manners.

Titles：Some etiquette in modern life

九年级英语其他题中等难度题查看答案及解析

— Mark, why do you get up so early? — Oh, I have so many things to do and you know ____.

A. one finger cannot lift a small stone                  B. east or west, home is best

C. the early bird catches the worm                    D. easy come, easy go

九年级英语单项填空中等难度题查看答案及解析