How fast might your mobile phone network be in the future? After 3G and 4G, 5G is on the way. 5G (from “the fifth-generation mobile networks”) is the latest generation of mobile communications, including extreme high bandwidth(宽带), low latency(低延时), and high density(高密度) connections. According to Science Daily, 5G tests are expected to start in 2019 in the US and by 2020 in the UK. China has already tested 5G in10 big cities and announced the start of 5G this year.

As a result of the increased size of networks, data transfer will be much faster and more reliable.5G is expected to be 10 to 100 times faster than the average speed of the current 4G network. It may enable many new uses that are impossible on older networks. For example, you can download a film within just 3 seconds. This used to take a few minutes with a 4G network. In addition, there will be enough capacity(容量) for everyone to chat on social media and watch movies on their phones. Scientists say 5G will help the development of self-driving cars and the “5G man-like robot”as well. Most importantly, 5G will help us build the Internet of things(IoT,物联网). loT connects everyday devices to the Internet. People can control their devices remotely. For example, on a hot summer’s day, you could tum on your air conditioning with loT before you go home. All of these things need very fast Internet speeds.5G will be the key.

Every single day, our technology seems to shift up a level. Some big companies like Huawei and Samsung have started to deliver. 5G products. 5G technology is becoming reality, It will make some unimagined changes. Let’s wait and see what it brings.

1.What does the sentence“5G is on the way” mean according to Paragraph One?

A.China, the US and the UK are expected to start 5G in 2019 and 2020.

B.3G, 4G and 5G are the newest generation of mobile communications.

C.China has already used 5G in ten big cities and will use 6G next year.

D.5G will be 10-100 times bigger than 4G network at the present time.

2.What is the second paragraph mainly about?

A.5G may enable many new uses. B.The importance of 5G's company.

C.New inventions of 5G company. D.The huge capacity 5G will bring.

3.What great change will there be with 5G?

A.Man-like robots will be invented. B.Self-driving cars will be seen. ..

C.The Internet of things will be built. D.The Electronic keys will be found.

4.Where can you read the passage?

A.In a picture book. B.In a science magazine.

C.In a page of sports. D.In a book review.

用所给单词的适当形式填空，未提供单词的限填一词，将答案写在答题卷上。

Denis Rancourt is a famous professor of physics at the University of Ottawa. As a leading expert in his research field, he 1. (write) hundreds of scientific papers so far. One day, he decided 2. (change) his teaching method which he had used for over twenty years.

It all started a few years earlier. While doing research, he found that water and land were being polluted and farms were disappearing. As a person who cared3. (deep) about the environment, Denis decided to start a science course4.was open to everyone. He even invited some5.(science) to give talks on topics such as war, trade, medical care and environmental policy, And be encouraged students to think, discuss, and take action to make the world6.better place,

Once, a hall7. (fill) with over. 120 people who had come to listen to these lectures . Two 12-year-old twins even came to his class.

Denis became a controversial(有争议的) person. Some people praised him for his courage, social responsibility and8. (usual) teaching methods. However, others thought that he was ruining the reputation(名誉) of the university.

In an interview, some reporters asked him9.he did all of this at the risk(风险) of his own career. He said, “We, as educators, are responsible10.warning people about problems and encouraging everyone to become independent thinkers. We should try our best to stop bad things from happening.”

假如你是李平，昨天从伦敦希思罗机场（Heathrow Airport）返回深圳宝安国际机场取行李的时候，发现托运的行李（claimed luggage）不见了。现在请你用英语给希思罗机场问询台发一封电子邮件。

内容包括：

1.告知你乘坐的航班CX252 1130；

2.对行李的描述（24英寸、黑色、新的，箱子里面有：衣裤，书籍和纪念品souvenir）；

3.希望尽快找到并寄回深圳宝安国际机场。

写作要求：80词左右，条理清楚，意思连贯，语句通顺，标点正确。

Dear Sir,

I'm Li Ping,

________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Ping

— The boy next to me is really quiet and smart.

— Yeah, __________ boy he is !

A.what a unusual B.how unusual C.what an unusual D.how an unusual

My hometown Chongqing is well-known ________ the delicious spicy food.

A.as B.for C.of D.to

I found _____ convenient to shop on line at home .

A.it’s B.that C.it D.that was

—I improved my English by memorizing a lot of words.

—_______ .

A.So did I. B.Me, neither. C.So do I. D.Me, also.

_______you practice English with your group, _______ grades you will get.

A.The much; the more B.The more; the better

C.The more; the good D.The much; the better

Your new blouse is very pretty. Can you tell ________?

A.where did you buy it B.where can I get one C.where you buy it D.where you bought it

Great changes _______ in our school during the past few years.

A.have taken place B.took place C.take place D.will take place