1 . To help you understand what 5G is, and what it means to you, we’ve put together a handy guide here.

What is 5G?

    1    At its most basic level, 5G will be used to make calls, send texts, and to simply get online. But it’s going to be significantly faster than previous generations, and could open the door up to a range of exciting new uses.

    2    

5G will use new higher radio frequencies to send out data, which are less cluttered(挤了)and carry information much faster. While these higher bands(频段) are faster, they don’t carry information as far. That’s to say, smaller multiple input and output antennas (天线)will be used—promoting both signals and capacity(容量).    3    

Why is it better than 4G?

5G is expected to be faster than 4G, with some firms claiming it could be as much as 100 times quicker. The fastest 4G networks can deliver 传输)peak(峰值)download speeds of around 300 Mbit/s.    4    In real life, this could allow you to download a full HD film in less than 10 seconds!    5     It means there will be very little—if any—delay when you carry out tasks on a device(设备). While this will help improve things like gaming experiences, it could also pave(为…铺平道路)the way for safer self-driving cars—in which even a short delay could be life-saving.

Finally, 5G will have a larger capacity, meaning networks will be able to deal with several apps at once. Generally, this should mean that devices have a faster, more stable connection.

A．How does 5G work?

B．How will 5G affect you?

C．5G is also expected to have a lower lag(延迟).

D．5G is short for “5th generation mobile network.”

E．In comparison, 5G could offer download speeds of over 1 Gb/s.

F．Therefore, the similarity between 5G and 4G technology is huge.

G．This means 5G will support up to 1,000 more devices per meter than 4G.

2 . Take a look inside a high school classroom. You will most likely find a teacher at the front of the class and students sitting at their desks. Yet, look closer, and you might notice a familiar scene: many of these students are not paying attention. Instead, they are dozing off (打盹) or even completely asleep.

Today, the majority of high school students are not getting enough sleep. This is a serious problem, especially as students are doing more than ever with their time. They come to school early, spend hours listening to teachers and taking tests, then run off to practices and meetings, and come home to be faced with even more work. And the homework load these days is not light; teachers give hours’ worth of homework each night.

Most kids need at least nine hours of sleep per night in order to function properly. Yet the period of this nine hours shifts as a child gets older. After puberty (青春期), the body’s internal clock changes so that it is difficult for teens to fall asleep before 11 p.m. So even if a student falls asleep at eleven, they would need to sleep until at least 8 am, to get a full night’s sleep. Considering the time at which most high schools in this country begin, those nine hours are clearly being shortened. Few high schools start after 8 a.m.

However, there are schools that have paid attention to this research and pushed backward the start of their school day. In schools where the start time is after 8:30 in the morning, the teachers believe that there has been a real change in their students. They note that the students miss class less, pay more attention in class, perform better in class, and report lower levels of depression. The researchers of these studies say that the results are quite important and that more schools should consider pushing backward their start time of their school day.

1. Which of the following would the author agree with?

A．High school students must go to bed before 10 p.m.

B．High schools should begin their school day at a later time.

C．Most schools should push forward the start of their school day.

D．Kids should shorten their sleep time gradually as they grow older.

2. The second paragraph mainly discusses ________.

A．why high school students should get more sleep

B．what’s life like for college students at present

C．why high school students feel sleepy in the classroom

D．how to lighten high school students’ homework load

3. The underlined word “shifts” probably means “________”.

A．arrives

B．reduces

C．increases

D．changes

4. How do the teachers probably feel about the results of pushing backward the start of their school day?

A．Disappointed.

B．Satisfied.

C．Puzzled.

D．Surprised.

3 . For many years, I had a recurring (重复出现的) dream. I was a little girl again, rushing about, trying to get ready for school.

Deep inside, I knew where the _______came from. It was about some unfinished business in my life. As a kid, I loved everything about school. But at 15, I had to______because my parents couldn’t afford tuition. My hope of getting a diploma (毕业文凭) was ______. Pretty soon, I married and had three children.

I wanted my children to be ______. But Linda, our youngest child, had juvenile arthritis (幼年型关节炎) in her hands and knees, which made it______for her to function in a normal classroom. I felt really sorry for her and I didn’t want her to live her life ______regret.

One day, I saw an ad for evening courses. “That’s the answer,” I said to myself. Linda always feels ______in the evening, so I’ll just ______ her up for night school.

Linda was busy_______out enrollment (入学) forms when the secretary said: “Mrs. Schantz, why don’t you come back to _______?” I laughed: “There’s no ______! I’m 55!” But he persisted, and ______I knew what I had done, I was enrolled for classes in English and crafts. Anyway, my dream was still there in my heart. It was exciting to go to school again but it was no game. When I was down, Linda encouraged me. “Mom, you can’t   ______now!” At last, I got my diploma. The unfinished_______ in my dreams was ______ finished.

1.

A．dream

B．ambition

C．purpose

D．intelligence

2.

A．check out

B．turn out

C．bring out

D．drop out

3.

A．affordable

B．dead

C．available

D．reasonable

4.

A．separated

B．educated

C．examined

D．employed

5.

A．ridiculous

B．practical

C．impossible

D．reliable

6.

A．for

B．to

C．with

D．on

7.

A．worse

B．bitterer

C．better

D．quieter

8.

A．sign

B．stay

C．bring

D．pick

9.

A．filling

B．figuring

C．handing

D．leaving

10.

A．match

B．game

C．course

D．school

11.

A．wonder

B．way

C．good

D．problem

12.

A．before

B．until

C．after

D．since

13.

A．play

B．give

C．hold

D．quit

14.

A．journey

B．promise

C．business

D．knowledge

15.

A．extremely

B．occasionally

C．hardly

D．eventually

4 . I was never very neat （整洁的）, while my roommate Kate was extremely organized. Each of her objects had its place, but mine always hid somewhere. She even labeled（贴标签）everything. I always looked for everything. Over time，Kate got neater and I got messier. She would push my dirty clothing over, and I would lay my books on her tidy desk. We both got tired of each other.

War broke out one evening. Kate came into the room. Soon, I heard her screaming, "Take your shoes away! Why under my bed!" Deafened, I saw my shoes flying at me. I jumped to my feet and started yelling. She yelled back louder.

The room was filled with anger. We could not have stayed together for a single minute but for a phone call. Kate answered it. From her end of the conversation, I could tell right away her grandma was seriously ill. When she hung up, she quickly crawled （爬）under her covers，sobbing. Obviously, that was something she should not go through phone. All of a sudden, a warm feeling of sympathy rose up in my heart.

Slowly, I collected the pencils, took back the books, made my bed, cleaned the socks and swept the floor, even on her side. I got so into my work that I even didn't notice Kate had sat up. She was watching, her tears dried and her expression one of disbelief. Then, she reached out her hands to grasp mine. I looked up into her eyes. She smiled at me, "Thanks."

Kate and I stayed roommates for the rest of the year. We didn't always agree, but we learned the key to living together: giving in, cleaning up and holding on.

1. How is Paragraph one mainly developed?

A．By analyzing causes.	B．By describing a process.
C．By showing differences.	D．By following time order.

2. What made Kate angry one evening?

A．She couldn't find her books.	B．She heard the author shouting loud.
C．She got the news that her grandma was ill.	D．She saw the author's shoes beneath her bed.

3. The author tidied up the room most probably because ________.

A．she wanted to show her care	B．she was asked by Kate to do so
C．she was scared by Kate's anger	D．she hated herself for being so messy

4. What might be the best title for the story?

A．My Best Friend Kate	B．Hard Work Pays Off
C．How to Be Organized	D．Learning to Be Roommates

5 . I entered a cabinetmaking(家具制造)program. I didn’t think I would be good at making furniture. I’m not handy. Nobody in my family is.

I had great teachers, but making furniture is hard. There are so many steps and something can go wrong at each one. I couldn’t even get organized. My toolbox always looked as if a hurricane had gone through it.

I didn’t fully know what I was committed to in the beginning, but I kept attending class. I tried to be wrapped up in math. The projects forced me to solve new kinds of problems. My brain started to build new connections. Working in this new physical manner and giving it 100 percent of my effort had huge benefits for my mental health. I got over my fear of embarrassment and asked for help at every opportunity.

I spent that year truly learning. True learning is the most challenging experience, especially for those of us who are learning a new set of skills. I could understand exactly what was wrong with the furniture I made, but I couldn’t fix those problems. And yet, I kept trying. I failed again and again, until I learned to fail better.

In the end, I finished the program—with honors, no less! My grades were helped by my good written work. I also learned how to use tools. Having to constantly push myself to step outside my comfort zone has made me a more well-rounded person.

Maybe most importantly, the school gave me a more realistic idea of my strengths and limitations. I’m stronger than I thought!

1. What can we know about the author from the first two paragraphs?

A．She had a gift for making furniture.	B．She lacked practical skills.
C．She disliked making everything in a mess.	D．She went to the program to surprise her family.

2. What was the biggest challenge the author encountered?

A．Physical condition.	B．Psychological preparation.
C．To know how to correct mistakes.	D．Not being good at math.

3. What do you think of the author?

A．Hard-working and determined.	B．Confident and efficient.
C．Cooperative and creative.	D．Modest and talented.

4. What did the author benefit most from the project?

A．She won an award for good writing.	B．She became stronger both mentally and physically.
C．She became skillful at making furniture.	D．She had a better understanding of herself.

6 . Best musicals and shows in London's West End

The Book of Mormon

This comedy musical follows the plight of a pair of teenage Mormon missionaries sent to convert a village in a dangerous part of Uganda. The brainchild of South Park creators Trey Parker and Matt Stone, The Book of Mormon has won nine Tony Awards, including Best Musical. Prices: from £24. 60

The Phantom of the Opera

Andrew Lloyd Webber's famous musical, The Phantom of the Opera, tells the tale of a shadowy character who attempts to make Christina the leading lady of the Paris Opera. With a fantastic plot and breathtaking scene, this long-running show is one of the must-see musicals in London. Prices: from £30.75

School of Rock

Rock out at this award-winning new musical. Based on the 2003 movie, School of Rock follows the story of Dewey Finn and his discovery to transform a class of A-grade students into a real rock group. But will they make it to the Battle of the Bands? Booking until Feb. Prices: from £ 18.00

Matilda The Musical

Be wowed by the Royal Shakespeare Company's multi-award-winning production of Matilda The Musical. Roald Dahl's celebrated story bursts into life in this West End musical by Dennis Kelly and Tim Minchin. Children and adults alike will be delighted by the little girl with an extraordinary imagination. Prices: from £24.00

1. What is The Phantom of the Opera special for?

A．Its attractive story.	B．Its beautiful songs.
C．Its excellent costumes.	D．Its experienced actors

2. Both kids and adults are most likely to enjoy

A．School of Rock	B．Matilda     The Musical
C．The Book of Mormon	D．The Phantom of the Opera

3. What does the text mainly aim to do?

A．Evaluate musicals.	B．Criticize musicals.
C．Analyze musicals.	D．Advertise musicals.

7 . A new study found the greater the improvement in people’s handwashing habits at airports, the more noticeable the effect on slowing the infectious (传染的) diseases, including the flu. The findings were published in late December, 2019, just before the recent coronavirus (冠状病毒) outbreak, but the study' s authors say that its results would apply to any such disease and are relevant to the present outbreak.

People can be surprisingly casual about washing their hands, even in crowded locations like airports where people from many different locations are touching surfaces such as chair armrests, check-in entrances, security checkpoint trays, and restroom doorknobs and taps. On average, only about 20 percent of people at airports have clean hands. The others are potentially polluting everything they touch with whatever infections they may be carrying.

Improving handwashing at all of the world's airports to be three times that rate, so that 60 percent of travelers have clean hands at any given time, would have the greatest effect, potentially slowing global disease spread by almost 70 percent, the researchers found. Adopting such measures at so many airports and reaching such a high level of obedience may be impractical, but the new study suggests that it could potentially be accomplished through education, posters, public announcements, and perhaps improving access to handwashing facilities. It could slow the global rate of the spread of a disease by about 24 percent, they found.

The findings are consistent with recommendations made by both the U. S. Centers for Disease Control and the World Health Organization. Both have indicated that hand hygiene (卫生) is the most efficient and cost-effective way to control disease spread. While both organizations say that other measures can also play a useful role in limiting disease spread, such as use of surgical face masks, airport closures, and travel limitations, hand hygiene is still the first line of defense-and an easy one for individuals to implement.

1. What is most people’s attitude to handwashing?

A．Favorable.	B．Careless.
C．Doubtful.	D．Cautious.

2. What did the study suggest on increasing handwashing rate at airports?

A．Establishing higher hygiene standards.

B．Making handwashing fun and enjoyable.

C．Passing special laws to require handwashing.

D．Raising people's awareness of handwashing.

3. Why does the author mention the World Health Organization?

A．To introduce other measures.

B．To stress the importance of it.

C．To tell who carried out the study.

D．To make the study results more convincing.

4. What is the text mainly about?

A．People have many good habits at airports.

B．Handwashing reduces infectious diseases.

C．New coronavirus is breaking out.

D．There is great improvement in handwashing.

8 . Noah Webster was born on October 16, 1758, in the West Division of Hartford. At that time, few people went to college, but Noah loved to learn so his parents let him go to Yale, Connecticut’s only college. He left for New Haven in 1774. Noah’s years at Yale were the years of the Revolutionary War.

Sometimes 70 children of all ages were in one-room schoolhouses with no desks, poor books, and untrained teachers. Noah did not like that. Their books came from England. Noah thought that Americans should learn from American books, so in 1783, Noah wrote his own textbook: A Grammatical Institute of the English Language.

For 100 years, Noah’s book taught children how to read, spell, and pronounce words. It was the most popular American book of its time. Ben Franklin used Noah’s book to teach his granddaughter to read.

When Noah was 43, he started writing the first American dictionary. He did this because Americans in different parts of the country spelled, pronounced and used words differently. He thought that all Americans should speak the same way. He also thought that Americans should not speak and spell just like the English. Noah used American spellings like “color” instead of the English “colour”, “music” instead of “musick” and “center” instead of “centre”. He also added American words that weren’t in English dictionaries like “skunk” and “squash”. It took him over 27 years to write his book. When finished in 1828, Noah’s dictionary had 70,000 words in it.

Noah did many things in his life. He worked for copyright laws, wrote textbooks, Americanized the English language, and edited (编辑) magazines. When Noah Webster died in 1843, he was regarded an American hero.

1. How old was Noah Webster when he went to New Haven?

A．13

B．16

C．20

D．25

2. How did Noah Webster like American schools in the 1770s?

A．It was impressive.	B．It was unusual.
C．It was great.	D．It was dissatisfying.

3. Why did Noah write the first American dictionary?

A．He was asked to do it by Ben Franklin.

B．He didn’t like the words used in English dictionaries.

C．He wanted all Americans to speak the same way.

D．He was aware of the fact that the dictionary would make him famous.

4. What can we infer from the text?

A．Noah was a most productive author.

B．Noah studied in Hartford during the Revolutionary War.

C．There had been no books before Noah wrote his textbook.

D．Noah was thought of a hero because of his first American dictionary.