One evening, Zhang Luyang was working on her math homework. The 12-year-old girl from Sichuan opened the Tik Tok, known as Douyin, to watch some short videos. She just wanted to take a short break, but half an hour later, she was still watching short videos.

Zhang is one of many teenagers who enjoy watching short videos on apps like Douyin. The videos typically last from 15 seconds to 5 minutes. According to a survey by the Central Committee of the Communist Youth League of China, 20 percent of teenagers watch short videos during whatever free time they have. About 10 percent check short video apps several times a day.

Sun Zhenyao, a 14-year-old boy from Anhui, says he likes short videos because they are interesting. “It’s the perfect thing to do when I want to kill small amounts of time,” he said.

Zhang says she learns a lot by watching short videos. She follows a Chinese vlogger living in the US on Douyin. The vlogger does funny things, like selling pancakes on the street and inviting foreigners to watch The Wandering Earth, she said, “His videos teach me about cultural differences.”

However, Zhang and Sun also say they sometimes waste too much time watching short videos. Apps like Douyin and Kuaishou have features that prevent users from watching videos for too long. Users can use “teen mode”, which sets 40 minutes a day for watching short videos. Sun says this has helped him cut down the amount of time he spends watching videos.

China just issued commercial licenses(發(fā)放商用牌照）for 5G on June 6. This means that China’s telecom companies were soon 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 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(娛樂）

5G networks are about 100 times faster than 4G. This means you can dowload 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+transportation

5G will also bring us safer self-driving cars. These cars can send signals(信號）to each other. They also talk to traffic lights and road sensors(傳感器). 5G will allow cars to react 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(自動(dòng)地）start making breakfast after your alarm rings. And if its sensor feels the air becoming dry, a smart sprinkler could water your plants by itself.

【1】What does the underlined word “delay” in Paragraph 4 probably mean in Chinese?.

A.延時(shí)B.暫停C.斷開D.卡頓

【2】5G will change people’s lives in many ways EXCEPT _________.

A.entertainmentB.transportationC.smart homesD.health

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

A.We can download a movie faster with 5G.

B.Human drivers can send signals at traffic lights.

C.The plants can water themselves by a smart sprinkler with 5G.

D.5G is faster and more powerful than 4G.

【4】What’s the main idea of the passage?

A.Mobile phone users can use 5G networks.

B.Each mobile network generation has their own advantages.

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

D.5G will bring us safer self-driving cars.

The Adventures of Tom Sawyer is a story full of fun. Tom, the m【1】 character of the book, is a lively and clever boy. He doesn’t like people telling him what to do, so he a【2】 gets into trouble. He and his best friend, Huck Finn, run away to an island in the middle of the Mississippi River. Tom has more t【3】, because a bad man named Injun Joe is looking for him. Later, Tom g【4】 away from a cave successfully with another friend, Bechy. He also finds Injun Joe’s treasure box and takes it away.

My favourite part of the book is when Tom and Huck start their adventures on the island. At first, they are h【5】 But they feel very sorry when they hear that everyone thinks they are d【6】, so they come back home. They suddenly appear at their own funeral(葬禮）in the church. Everyone is s【7】 to see them at first, but very pleased to find that they are alive.

The great book is m【8】 than an adventure story. It d【9】 people’s lives in the southern part of America at that time. It tells how young people grow up, how people love each other and how bad people pay for their actions. It is written in e【10】 English, and the dialogues sound especially real. Today, it is still read and loved by people all over the world.

— That’s true. ________.

A.Practice makes perfectB.Nothing is difficult if you put your heart into it

C.Where there is a will, there is a wayD.One tree can’t make a forest

—________.

A.With pleasureB.Yes, please.C.That’s right.D.It is my pleasure.

—On July 5th.

A.when would the fashion show be held

B.when the fashion show will be held

C.where the fashion show would be held

D.where the fashion show will be held

—Yes. Ever since he tested positive for COVID-19（新冠肺炎） last month, he has shared his ________ with fans on his online blog.

A.situationB.environmentC.looksD.interest

—Yes. By using ordinary computers, NASA scientists are busy________ at home to control a space rover(天體登陸車）on the Red Planet. .

A.to programmeB.programmingC.programmeD.with programming

Amy was looking for a gift for her little daughter. She stopped in front of a store full of dolls.

"Girls like dolls," she thought as she stepped into the store.

Looking around, she saw a grandma doll -- one with grey hair and a pair of glasses. In her mind appeared Joyce, her own mother.

When Amy was a little girl, she got her first doll from Joyce for her birthday. Then the second, the third.., the dolls never arrived late, year after year.

"Why always a doll?" This question had been inAmy's mind until one day her father gave the answer.

Joyce dreamed of having a doll when she was a child herself. Her parents promised one for her fifth birthday. Sadly, they both died in a traffic accident before it arrived. The never-received gift was the mostvaluable one in her eyes.

Recalling(回想起) her mother's story, Amy got an idea.

It was Joyce's 60th birthday. She got a package with a card that read:

Dear Joyce,

I forget to send you a package that you should have received on May 20, 1956, your fifth birthday.

The gift inside has aged, but I felt that you might still want to have it.

Love,

Angel of Joy

Joyce opened the package and saw a lovely grandma doll. She clasped the doll that she had waited so many years for, with tears running down her face. The doll, given by her "Angel of Joy", made her the happiest "child" in the world.

【1】Why did Joyce buy her daughter Amy a doll year after year?

__________________________________________

【2】Did Joyce's parents realize their promise?

__________________________________________

【3】When was Joyce bom?

__________________________________________

【4】Who was Joyce's "Angle of Joy"?

__________________________________________

【5】How did Joyce feel when she received the lovely grandma doll as a gift?

__________________________________________

It is said that the story of coffee started with an Ethiopian goatherd (牧羊人) named Kaldi. One day

Kaldi was surprised to see that his goats were behaving very strangely. Instead of eating grass quietly, they were jumping around, almost dancing. He also noticed some red “cherries” from a plant that the goats were eating. He tried some himself and was surprised by the feeling of extreme happiness and excitement. He felt like dancing too!

But it wasn't used as a drink at first. It was used as food. The coffee berries, mixed with animal fat, were used by monks(修道士）to stay awake during long hours of prayer. From Ethiopia, coffee was later cultivated (培育) in Yemen and the first hot drink was developed there around AD 1000．Three centuries later Muslims were crazy coffee drinkers and as Islam(伊斯蘭教) spread, so did coffee. Coffee houses appeared in Cairo and Mecca．

For hundreds of years the plants were protected safely. But some beans were carried out of Arabia and taken to India secretly. In the 17th century, coffee was soon grown in a new continent. From India to Indonesia, a century later the beans were once again carried to Brazil. Brazil is now the largest coffee

producer in the world.

It was the caffeine that made the goats dance and kept the monks awake. Although it is found in other soft drinks and tea, coffee has the most caffeine. In the short term, a couple of cups of coffee can prevent tiredness and put off sleep. But several cups a day, every day, can cause worries and restlessness.

【1】Who played an important role in spreading coffee?

A.Kaldi.B.monks.C.Muslims.D.goats.

【2】The first coffee drink was developed in about_________.

A.the 11th century.B.the 14th century.

C.the 17th century.D.the 10th century.

【3】What is the fight route (線路) that coffee was spread?

A.Ethiopia → India → Indonesia → Brazil

B.Ethiopia→Indonesia→Brazil→ India

C.India → Indonesia→Ethiopia → Brazil

D.Brazil →India→ndonesia → Ethiopia

【4】According to the passage, which of the following is NOT true?

A.Coffee was fLrSt used as food.

B.Coffee plants were protected safely for hundreds of years.

C.Too much coffee can make people worried.

D.Caffeine is only found in coffee.

【5】More people drink coffee than tea in the world because_________.

A.coffee berries can be eaten

B.coffee can prevent tiredness and put off sleep

C.coffee has the most caffeine

D.It's easy for people to make coffee