What is 5G?The “G” in “5G” refers to the gene...

You might have noticed that sometimes, when you're playing mobile games or making a video call, the picture suddenly freezes (卡顿) because the network speed is too slow. When you try to download a movie on your phone, it seems to take forever.

These annoying things will soon become things of the past, as China just issued commercial licenses (发放商业牌照) for 5G networks on June 6. This means that China's telecommunications (电信) companies will be able to offer 5G network speeds for mobile phone users.

The "G" stands for generation (代). 1G let us talk to each other, 2G let us send messages, 3G gave us mobile data and Internet, and 4G made all of these things faster. So what will 5G bring?

First of all, 5G is so fast that it will allow us to download an entire HD movie in a second. The delay (延时) between sending and receiving data will be shortened. Now, 4G takes about 100 to 200 milliseconds (毫秒), while humans have a reaction time of about 200 to 300 milliseconds. But 5G will get the delay down to 1 millisecond or less, which is almost real-time.

Because of this increase in speed, it will possible to create and use new kinds of technology. Robots will be used to do operations because doctors will be able to control them from somewhere else without any delay. Self-driving cars will be able to drive more safely because they can smoothly communicate with other cars, traffic lights and road sensors (传感器). 5G also makes the Internet of Things (IOT, 物联网) possible.

All in all, 5G will shape every type of technology that it touches. And you won't have to wait too long for that to happen.

1.From the first paragraph that ________.

A.people can't download a movie at all on the phone

B.making a video call is impossible for phone users

C.sometimes the network speed is too slow to use

D.mobile games can't be downloaded on the phone

2.What happened on June 6 according to the passage?

A.China just gave commercial licenses officially for 5G networks.

B.Every mobile phone user could improve the network speed.

C.Most mobile phone users didn't use 4G anymore.

D.All the mobile phones are much cheaper than before.

3.The underlined word "them" refers to "___________".

A.operations B.robots C.5G phones D.speeds

4.Which of the following is NOT true according to the passage?

A.5G will make people's life much easier and more convenient.

B.Self-driving cars will become safer because of the use of 5G.

C.Using 5G to download something doesn't take any time at all.

D.5G can make people download an entire HD movie in a second.

九年级英语阅读单选中等难度题查看答案及解析

Do you know 5G? It is the fifth generation（代）of mobile network technology. These new networks are coming.

China just issued commercial licenses（发放商用牌照）for 5G on June 6, 2019. This means that China's telecom companies will be able to offer 5G networks for mobile phone users.

Each mobile network generation is faster and more powerful than the one before it. 1G let us talk to each other. 2G let us send messages. 3G gave us data（数据）and the Internet. And 4G made all of these things faster. What's special about 5G?

5G has a very short delay between sending and receiving information. Now, 4G takes about 100 to 200 milliseconds（毫秒）to send and receive data. But 5G will get it down to 1 millisecond or less-this is almost real-time.

'This big change will not only make our mobile Internet faster，but also deeply change our lives. Read on to find out how.

5G + entertainment（娱乐）

5G networks are about 100 times faster than 4G. This means you can download a movie in seconds using 5G.

Also, virtual reality（VR）games will become more popular with 5G. The short delay of 5G will make the games feel even more real.

5G + transport

5C will also bring us safer self-driving cars. These cars can send signals（信号）to each other. They also talk to traffic lights and road sensors（传感器）. 5G will allow cars to react（反应）even faster than human drivers.

5G + smart homes

5G also makes the Internet of things possible. Internet of things is a large network that connects everything to the Internet. Smart homes are part of it.

For example, your toaster can automatically（自动地）start making breakfast after your alarm rings. And if its sensor feels the air becoming dry, a smart sprinkler（洒水器）could water your plants by itself.

1.What's the writer's purpose in writing the third paragraph?

A.To explain 5G is the best of all.

B.To share his knowledge about 5G.

C.To encourage people to use the new network technology.

D.To show the development of mobile network technology.

2.What does the underlined word “delay” in paragraph 4 mean in Chinese?

A.卡顿 B.延时 C.暂停 D.掉线

3.Which of the following ways is not mentioned that 5G will change people's lives?

A.Health care B.Entertainment. C.Transport. D.Smart homes.

4.What will people do possibly with 5G according to the passage?

A.Download a movie in minutes.

B.Put everything onto the Internet.

C.Make self-driving cars safer.

D.Make food more easily and faster.

5.What's the main idea of the passage?

A.5G will change our lives in many ways.

B.Mobile networks are changing for better.

C.5G will make the Internet of things possible.

D.5G networks for mobile phone users are coming.

九年级英语阅读单选中等难度题查看答案及解析

What is 5G? It is the fifth generation of mobile network technology. In the past, 1G let us talk with each other. 2G let us send messages. 3G gave us the Internet. And 4G made all of these things faster. What's special about 5G?

5G + entertainment

5G networks are about 10 times faster than 4G. This means you can download a movie in seconds using 5G. Also, VR games will become more popular with 5G.　 5G will make the VR games even more real.

5G + smart home

5G also makes the Internet of Things（物联网）possible. Smart home is part of it. For example, your bread maker could make breakfast by itself after your alarm rings. And if the air in your room is too dry, a smart sprinkler could water your plants by itself when you are not at home.

So you just need to buy a new mobile phone to use 5G. But a 5G phone costs about 8,000 yuan right now. It is said that about one year from now, the price could go down to around 2,000 yuan.

1.________

2.________

3.________

4.________

5.________

九年级英语信息归纳中等难度题查看答案及解析

What is 5G?

The “G” in “5G” refers to the generations of mobile network technologies. 1G let us talk to each other, 2G let us send messages, 3G gave us mobile data and the Internet, and 4G made all of these things faster.

Now 5G promises much faster data download and upload speeds, and more stable connections. For example, when you have a video chat with your friend, there is generally a 100 to 200 milliseconds delay with 4G, but 5G will reduce the delay to 1 millisecond(毫秒) or less.

What changes will 5G bring us?

According to the Straits Times, 5G will be able to improve many advanced technologies, such as driverless cars, wearable devices and entertainment.

Does 5G have any disadvantages?

According to the BBC, though 5G will make our lives more convenient, it will not be perfect.

For one thing, 5G will not “travel” far. On 4G networks, you can be 10 kilometers away from the nearest transmission base and barely lose signal. But 5G will only cover about 300 meters, meaning that we will need more transmitters so that we can get signals. And in order to use 5G, we will have to buy new products specifically designed for 5G that are currently expensive.

1.According to the passage, what can 3G do?

A.People can send messages. B.People can talk to each other.

C.It can make massage and mobile data faster. D.People can get mobile data and the internet.

2.The underlined word “driverless” means __________.

A.无人驾驶的 B.开车少的 C.粗心的 D.空间小的

3.What advanced technologies will 5G improve?

A.driverless cars B.wearable devices C.entertainment D.all above

4.We can learn from the passage that__________.

A.When you have a video chat with your friend, 5G will reduce the delay to 10 millisecond.

B.5G will make our lives more convenient.

C.5G will be perfect.

D.To use 5G, people will buy new cheap products designed for 5G.

5.The text mainly comes from __________.

A.a story book B.a science magazine C.a movie review D.a tourist guide

九年级英语阅读单选中等难度题查看答案及解析

If you look at the top of your phone ,you'll usually see a little symbol that says 3G or 4G. The "G" stands for the "generation" of your mobile network.But these symbols will become things of the past after 5G fully arrives.

On March 30th, 2019, Shanghai vice-mayor Wu Qing made the first 5G video call on a Huawei Mate X smartphone, CGTN reported.Shanghai has also become the first city in China to start testing 5G networks.Monaco became the first country in Europe to use a next-generation 5G mobile phone network based on technology from Chinese company Huawei.

It sounds obvious, but it’s important to understand just how much faster 5G is compared to current 4G speeds. 5G will not only be many, many times faster than your existing connection, it will be greatly faster than the broadband connection you have at home.

Now, 4G takes about 100 to 200 milliseconds* to send and receive data.But 5G will get it down to 1 millisecond or less.This big change will not only make our mobile Internet faster. It can be used in many other ways as well.

For example,5G will help to make self-driving cars safer.Today's self ﹣ driving test cars have one problem ﹣ lag.When the car"sees"an obstacle*, it sends this information to a data center and receives instructions. However, it takes time to send and receive this information. With this kind of lag, the cars might crash because they don't receive instructions in time. With 5G, this lag will be greatly lowered, making the cars safer,according to CNN.

5G could also be used to power the Internet of Things (IOT). This refers to a large online network that connects all things and people.Fast Internet speeds will be the key to developing this technology. For example, with IOT under 5G, your fridge could automatically* place an order online for eggs when it finds that there are no eggs left inside.

All in all, 5G will shape every type of technology that it touches. And you won't have to wait too long for that to happen. Though we’ve seen a lot of positive progress just in the last year, we still have a long way to go before 5G is anywhere near as common as 4G is right now.

1.From Paragraph ②, we can know that _______.

A.5G is widely used in Shanghai

B.it took lots of efforts to test 5G

C.China and Monaco is working on its 5G networks

D.5G would make it possible to take videos

2.The underlined word "lag" probably means " _______" in Chinese.

A.延迟 B.迷路 C.暂停 D.耗电

3.The fridge is mentioned to _______.

A.describe the importance of IOT

B.encourage people to try the new product

C.introduce how to use the Internet of Things

D.show 5G would make IOT more powerful

4.Which of the following would be the best title of the passage？

A.Can 5G Go Far？

B.How is 5G Changing Our Life？

C.5G is on the Way

D.China is Leading the World in 5G

九年级英语阅读单选中等难度题查看答案及解析

Whether from news reports or social media articles, you may know that 5G is coming.

5G is the 5th generation network. It is a new network(网络)after 1G, 2G, 3G and 4G and it can connect everyone and everything together. 5G networks will cover many cities in China soon. 5G means super-fast data(数据) speed, one can download a two-hour movie for fewer than 10 seconds, and it is making our lives more and more convenient.

5G will make self-driving cars possible. For safety, self-driving cars need super-fast data transmission(传输)to communicate with their nearby environment. 5G is just what makes self-driving cars achieve this. Eyen airplanes will become "smart" in the near future. Passengers will be able to use 5G networks in the air to connect to the Internet or place orders for food and drinks.

5G will be a big help for students who take online classes. Many people live in poor areas in the world where there are no schools. But with 5G, this will change. Students all over the world will be able to see places like the Great Wall without leaving their rooms.

It will be also easier for doctors to treat patients remotely by 5G. It means caring for patients from far away.

The facts listed above are only a part of what 5G will make possible and popular. Just as in the early days of the Internet in the 1990s, few could see how it could change the world. The same will surely be true of 5G. With 5G, many things do not seem like dreams anymore. Now let's get ready to say goodbye to 4G and welcome the coming of 5G.

1.How long may it take to download a two-hour movie with 5G?

A.15 seconds. B.8 seconds. C.10 minutes. D.2 hours.

2.The underlined word "remotely" means________in Chinese.

A.快速地 B.高效地 C.远程地 D.科学地

3.From the last paragraph, we can know that________.

A.4G is no more used in our daily life now

B.the writer is worried about the coming of 5G

C.with 5G, some of our dreams will come true for sure one day

D.in the 1990s, all the people believed that the Internet would change our life

4.5G will make the following things more and more popular EXCEPT________.

A.self-driving cars B."smart" airplanes

C.online classes D.hospitals without doctors

5.About 5G, ________ is NOT mentioned in the passage.

A.to be used freely B.super-fast data speed

C.to connect everyone and everything together D.to make life more convenient than 4G

九年级英语阅读单选中等难度题查看答案及解析

How will we save our planet?

Which topic drew the most attention from people around the world in 2019? It was climate change, according to three well-known English dictionaries.

The Oxford, Collins and Cambridge dictionaries chose "climate emergency", "Climate strike" and "upcycling", respectively(分别地), as their "Word of the Year". This tells us that climate change was a widely-discussed issue in 2019.

"Climate emergency" means a situation in which urgent action is needed to reduce climate change. "Climate strike" refers to people leaving work or school to call for more action to protect the environment. "Upcycling" refers to making new items out of old or used items to reduce waste.

Climate change has already affected the world in many ways. Take Venice for example. Due to climate change, Venice experienced the worst flooding it has seen in the last 50 years in 2019. Many stores, restaurants and hotels were flooded. This caused serious damage totaling hundreds of millions of euros.

Although we've known about global warming for a long time, our large companies and governments have been slow to respond to it. The year 2019 might have been the turning point that will finally encourage our leaders to take responsibility.

"Decades ago, when the science on the climate issue was first increasing, the impacts(影响)could been seen as an issue for future generations," Katharine Mach, a Stanford University climate scientist, told The New York Times. "It's definitely our issue now."

However, simply realizing that climate change is a threat is not enough, we must take real action before it is too late.

1.Which dictionary didn't choose the climate word as their "Word of the Year"?

A.The Oxford. B.The Collins. C.The Webster. D.The Cambridge.

2.Which of the following words of phrases calls for making new items with old or used things?

A.Climate change. B.Climate emergency. C.Upcycling. D.Climate strike.

3.Why did Venice experience the worst flooding during past 50 years in 2019?

A.Because of heavy rain. B.Because of climate change.

C.Because of bad economy. D.Because of terrible managements.

4.According to Katharine Mach, what should we do now?

A.We should take action to fight against climate change in the future.

B.We'd better leave the climate issue to future generations.

C.We should take responsibility to deal with climate change immediately.

D.We should realize the climate change is a big threat but we can do nothing.

九年级英语阅读单选困难题查看答案及解析

If you look at the top of your phone, you will usually see a little symbols that says 3G or 4G. The G means "generation" of your mobile network. But these symbols will become things of the past after 5G networks fully arrive.

On March 30, Shanghai vice-mayor (副市长) Wu Qing made the first 5G video call on the Huawei Mate X Smartphone. Shanghai has also become the first city in our country to start testing 5G networks.

More and more people started to learn about 5G because it has many advantages. 5G will let people download and upload the data (上传数据) faster than before. People can use it for many other things as well. For example, 5G will help to make self-driving cars safer. Today's self-driving test cars take time to send the information and the receiving instructions. They can't react in time. With the help of 5G, this can be greatly improved.

People could also use 5G to power the Internet of Things (IOT 物联网). It's a large online network that connects all things and people. Fast Internet speed will be the key to developing this technology.

5G is on the way. It will lead us to a new world. Are you ready?

九年级英语填空简单题查看答案及解析

Which topic drew the most attention from people around the world in 2019? It was climate (气候) change, according to three well-known English dictionaries.

The Oxford, Collins and Cambridge dictionaries chose “climate emergency”, “climate strike” and “upcycling”, respectively, as their “Word of the Year”. This tells us that climate change was a widely-discussed issue (话题) in 2019.

“Climate emergency” means a situation in which urgent action is needed to reduce climate change. “Climate strike” refers to people leaving work or school to call for more action to protect the environment. “Upcycling” refers to making new items out of old or used items to reduce waste.

Climate change has already affected the world in many ways. Take Venice, for example. Due to climate change, Venice experienced the worst flooding (洪水) it has seen in the last 50 years in 2019. Many stores, restaurants and hotels were flooded. This caused serious damage totaling hundreds of millions of euros (欧元).

Although we’ve known about global warming (全球变暖) for a long time, people have been slow to respond to it. The year 2019 might have been the turning point that will finally encourage us to take responsibility.

“Ten years ago, when the science on the climate issue was first increasing, the influences could be seen as an issue for future generations (子孙后代),” Katharine, a climate scientist, told The New York Times. “It’s no doubt our issue now.”

However, simply realizing that climate change is a threat (威胁) is not enough. We must take real action before it is too late.

根据短文内容，用符合语义及语法规则的词填空，每空一词。

1.The words “Climate Emergency”, “Climate Strike” and “Upcycling” talked about ________________ ________________, which was the hot issue in 2019.

2.“Climate strike” means people call for more action to protect the environment ________________ ________________ working or going to school.

3.In 2019, Venice lost hundreds of millions of euros because many ____________, ____________ and __________ were flooded.

4.What Katharine said means that ____________ ____________ for us to think over the issue of climate change.

5.We must do something on climate change ____________ than simply think it is a threat.

九年级英语信息归纳困难题查看答案及解析

(2018河南C篇节选)One reason the plant is popular is that it grows in the wild. It is difficult to grow them on farms. Most restaurants get them from foragers, who collect ramps by searching forests for some small pieces of land where they grow. Ramps have a short season. Within a few weeks of full growth, the plant is done for the year. This short life is some reason for their popularity.

What does the word “they” refer to(指的是)?

A.foragers B.ramps C.customers D.restaurants

九年级英语阅读单选困难题查看答案及解析