1 . There has been a lot of publicity (宣传) recently surrounding 5G, the next generation of wireless technology for the world. But what is this technology and how might it change our lives?

What is 5G?

5G stands for fifth generation, meaning the next step in the progression of technology to replace the current 4G system. 4G was the replacement for 3G, which came after 2G, and so on. These systems are wireless computer networks. Earlier “G” systems were designed to improve mobile communication operations. Each new technology brought major improvements in speed and greatly increased network capacity. The new 5G system promises more of the same. It is expected to permit more users to do more things-at a faster rate. Higher internet speeds and larger network capacity should result in better performance for device users connected to 5G. However, technology experts say there is a major way that 5G is different than the earlier systems. It will move well beyond mobile network technology to affect many more devices and industries than other “G” versions.

When will it be available?

Before we can all use 5G, wireless companies and phone makers will have to complete and deploy (部署) a whole new system. New phones and communication equipment must be built. American wireless companies have been preparing for the new system for some time. They have been creating new network equipment and buying broadcasting space to carry 5G signals. They have built news G antennas(天线)to serve American cities and towns. Wireless providers will invest at least $275 billion n 5G-related networks in the United States, the industry group CTIA reported. The first U.S, launch of 5G is expected to happen sometime this year. Industry experts expect it will take a few more year to go nationwide. It will take even longer to reach rural areas. China is expected to launch 5G sometime in 2020, while European nations are likely to build their systems more slowly over time.

1. Which system is widely used nowadays?

A．5G.

B．2G.

C．3G

D．4G.

2. Which of the following is NOT 5G system’s advantage to the other Gs?

A．It will allow more users to do more things.	B．The internet speed will be much higher.
C．The users will spend much less money on it.	D．It will affect more devices and industries

3. What can we learn from the last paragraph?

A．5G system has nothing to do with phone makers.

B．There is much work to do before 5G comes into use.

C．New phones will be much smarter than those used now.

D．4G system will be stopped as soon as 5G comes into use.

4. In which order will the following countries use 5G system according to the passage?

A．USA→China→European nations.	B．China→USA→European nations.
C．USA→European nations→China.	D．European nations→China→USA.

2 . When other nine-year-old kids were playing games, she was working at a petrol station. When other teens were studying or going out, she struggled to find a place to sleep on the street. But she overcame these terrible setbacks (挫折) to win a highly competitive scholarship and gain entry to Harvard University. And her amazing story has inspired a movie, “Homeless to Harvard: The Liz Murray Story”, shown in late April.

Liz Murray, a 22-year-old American girl, has been writing a real-life story of willpower and determination. Liz grew up in the shadow of two drug-addicted parents. There was never enough food or warm clothes in the house. Liz was the only member of the family who had a job. Her mother had AIDS and died when Liz was just 15 years old. The effect of that loss became a turning point in her life. Connecting the environment in which she had grown up with how her mother had died, she decided to do something about it.

Liz went back to school. She threw herself into her studies, never telling her teachers that she was homeless. At night, she lived on the streets. “What drove me to live on had something to do with understanding, by understanding that there was a whole other way of being. I had only experienced a small part of the society,” she wrote in her book Breaking Night.

She admitted that she used envy to drive herself on. She used the benefits that come easily to others, such as a safe living environment, to encourage herself that “next to nothing could hold me down”. She finished high school in just two years and won a full scholarship to study at Harvard University. But Liz decided to leave her top university a couple of months earlier this year in order to take care of her father, who has also developed AIDS. “I love my parents so much. They are drug addicts. But I never forget that they love me all the time.”

Liz wants moviegoers to come away with the idea that changing your life is “as simple as making a decision”.

1. The main idea of the passage is ________.

A．how Liz managed to enter Harvard University

B．how Liz struggled to change her life

C．why Liz loved her parents so much

D．the hard time Liz had in her childhood

2. In which order did the following things happen to Liz?
a. Her mother died of AIDS.
b. She worked at a petrol station.
c. She got admitted into Harvard.
d. The movie about her life was put on.
e. She had trouble finding a place to sleep.

A．b, e, a, d, c

B．a, b, c, e, d

C．e, d, b, a, c

D．b, a, e, c, d

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

A．Both Liz’s father and mother are AIDS-infected patients.

B．Liz lived a hard time in her childhood.

C．Liz’s story is an inspiration to many people.

D．Liz hated her father because he got addicted to drugs.

4. What actually made her go towards her goal?

A．Envy and encouragement.	B．Willpower and determination.
C．Decisions and understanding.	D．Love and respect for her parents.