1 . For people who are interested in sound, the field of sound technology is definitely making noise. In the past, sound engineers worked in the back rooms of recording studios, but many of today’s sound professionals are sharing their knowledge and experience with professionals in other fields to create new products based on the phenomenon we call sound.

Sound can be used as a weapon. Imagine that a police officer is chasing a thief. The thief tries to escape. And the officer can’t let him get away. he pulls out a special device points it at the suspect, and switches it on. The thief drops to the ground. This new weapon is called a Long Range Acoustic Device (LRAD, 远程定向声波发射器). It produces a deafening sound so painful that it temporarily disables a person. The noise from the LRAD is directed like a ray of light and travels only into the ears of that person, but it is not deadly.

For those who hunger for some peace and quiet, sound can now create silence. Let’s say you are at the airport, and the little boy on the seat next to you is humming（哼唱）a short commercial song. He hums it over and over again, and you are about to go crazy. Thanks to the Silence Machine a British invention, you can get rid of the sound without upsetting the boy or his parents. One may wonder how the Silence Machine works. Well, it functions by analyzing the waves of the incoming sound and creating a second set of outgoing waves. The two sets of waves cancel each other out. Simply turn the machine on, point it at the target, and your peace and quiet comes back.

Directed sound is a new technology that allows companies to use sound in much the same way spotlights（聚光灯） are used in the theater. A spotlight lights up only one section of a stage; similarly, a “spotsound” creates a circle of sound in one targeted area. This can be useful for businesses such as restaurants and stores because it offers a new way to attract customers. Restaurants can offer a choice of music along with the various food choices on the menu, allowing customers more control over the atmosphere in which they are dining. Directed sound is also beginning to appear in shopping centers and even at homes.

1. What could be inferred from Paragraph 2 about the effect of the LRAD?

A．It causes temporary hearing loss	B．It slows down a running man
C．It makes it easy to identify a suspect	D．It keeps the suspect from hurting others

2. The Silence Machine is a device specially designed to ________.

A．silence the people around you	B．remove the sound of commercials
C．block the incoming sound waves	D．stop unwanted sound from affecting you

3. What feature do spotsounds and spotlights share?

A．They travel in circles	B．They clear the atmosphere.
C．They can be transformed into energy	D．They can be directed onto a specific area

4. Directed sound can be used for ________.

A．creative designs of restaurant menus	B．ideal sound effects on the theater stage
C．different choices of music for businesses	D．strict control over any suspicious customer

2 . When we see a person in trouble our immediate reaction is to lend a hand. But what if we se an animal in trouble, does the same rule apply?

This question was raised after a group of penguins were saved from an icy gully (峡谷) in Antarctica. It was filmed for the BBC wildlife series Dynasties. After seeing that a group of penguins had fallen into a gully and been trapped with their young the film crew were so concerned about their safety that they built a slope (斜坡) so that a few of the penguins could save themselves.

The case has taken the international media by storm. Viewers watching this film let out a sigh of relief. "I'm so glad. I understand not taking action directly involved, but a helping hand isn't bothering, right?" viewer Kathryn Shaw said on her Facebook.

However, others think human interference (干涉) is unnatural. "You can't have sunshine throughout your life. To have done anything else would only make matters worse," said the show's creator David Attenborough, according to The Times.

In this case, however, Mike Gunton, the executive producer of the series, said that this was a one-off situation. "There were no animals going to suffer by interfering. You weren't touching the animals and it was just felt by doing this. They had the chance not to have to keep slipping down the slope," he told the BBC.

Such cases are familiar to Paul Nicklen, wildlife photographer for National Geographic. He told Metro, "If it's ever a predator (捕食者) situation，no matter how gut-wrenching，you stay out of the way. Even when you're watching a male polar bear eat a baby bear."

"There's no rule book in those situations. You can only respond to the facts that are right there in front of you," Will Lawson, the show's director, told Daily Mail.

1. What has caused to a heated media discussion?

A．People's various comments on penguins.

B．The ways of helping the trapped penguins .

C．Some penguins' sufferings in a gully.

D．Ways of filming the series Dynasties.

2. How did the film crew feel when seeing the trapped penguins?

A．Anxious.	B．Sad.
C．Annoyed.	D．Thrilled.

3. Which human activity is considered proper in Paul Nicklen's opinion?

A．Shooting an eagle catching a snake.

B．Preventing a polar bear eating a baby bear.

C．Watching a lion attacking a deer.

D．Distracting a crocodile biting an antelope.

4. What can be a suitable title for the text?

A．The Necessity of Lending a Hand to Animals in Trouble.

B．Suggestions on How to Save Animals in Trouble.

C．Effects of Human Interference on Animals in Trouble.

D．Opinions on Whether to Help Animals in Trouble.

3 . Being stuck at home doesn’t mean that learning stops. In fact, it's just the opposite. Here are some activities and resources to foster (促进) kids' imagination and build their curiosity at home.

Let's Get down to Science

The science lab at school may be closed, but kids can still put on goggles and a white lab coat and learn at home. This Test Tube Experiment Kit will make them feel like a genius in no time. Kids will get the chance to learn about basic chemistry, physics, and more by creating pop-resistant bubbles, bouncy balls, and other objects.

To Infinity (无穷) and Beyond

Earth is a part of the Milky Way, but do kids know how many galaxies there are in the universe? There are so many fun and fascinating things to learn about space that the possibilities truly go to infinity and beyond. A great way to start your child's educational space adventure is with this Discovery Real Life Sticker and Activity Book: Space.

Take a Walk on the Wild Side

Biology class is in session! Here's kids' chance to get up close and personal with a great white shark without putting on a wetsuit. This 4D Great White Shark Anatomy Kit allows them to get an inside look at what makes these predators of the deep so powerful. And then take an even deeper dive into a shark's world with I'm a Shark.

Let your kid take advantage of this time at home and find new ways to keep exploring the world around him.

1. What is common among these activities above?

A．They are all performed outdoors.

B．They are all associated with physics.

C．They all recommend some resources for kids to study.

D．They are all carried out by the way of experimenting.

2. Which resource favors children interested in stars?

A．The Test Tube Experiment Kit.

B．Discovery Real Life Sticker and Activity Book: Space.

C．The 4D Great White Shark Anatomy Kit.

D．I'm a Shark.

3. What's the shared goal of the activities?

A．To gain financial benefits.	B．To save kids from boredom.
C．To explore new technologies.	D．To inspire kids to study at home.

4 . What you do after studying could have a big effect on how well you learn and remember. Today on Education Tips, we will explore two no-cost ways that can help you improve your learning: wakeful rest and sleep.

When many students finish studying, they often go straight to another activity. Perhaps they look at their phone or computer. They might even play a video game or watch television. But research suggests that resting after your study may help you remember what you have studied.

The basic idea is this: by stopping your activity after the study, your brain gets a chance to rest. Resting is difficult when you are playing computer games.

While this might sound unusual to you, many studies have explored the benefits of resting after learning—what is called “wakeful rest”.

A 2019 study found that both young and older adults were able to better remember information they learned after doing wakeful rest.

If you want to give “wakeful rest” a try, here are a few simple things to do. Rest quietly for five to ten minutes. Do not look at your phone, read stories or play games. It is really that easy!

Besides wakeful rest, sleep is also important for learning. The Division of Sleep Medicine at Harvard Medical School (HMS) notes that sleep helps people to learn in two ways. A report on the school’s website explains that “a sleep-deprived person cannot focus attention well and therefore cannot learn well”. It also says, “Sleep itself helps us to memorize and that memorizing is very important for learning new information.”

The National Sleep Foundation (NSF) suggests that adults between the ages of 20 and 64 get between 7 and 9 hours of sleep per day. Teenagers may need a little bit more, and people over the age of 65 may need a little less.

Try to get some “wakeful rest” after a study. Then try to get a good night’s sleep. That’s it—a simple, no-cost way to help you remember what you learn.

1. What is paragraph 3 mainly about?

A．The importance of sleep.	B．The good ways to get a rest.
C．The reason for having a rest.	D．The types of resting activities.

2. Which activity might be recommended shortly after studying?

A．Reading a newspaper.	B．Playing a video game.
C．Sitting there doing nothing.	D．Having a nice sleep at night.

3. How long should teenagers sleep each day according to NSF?

A．Less than 7 hours.	B．Just 7 hours.
C．No more than 9 hours.	D．Around 9 hours.

4. What can be a suitable title for the text?

A．Low-cost Tips on Working	B．Good Things to Do After Your Study
C．Why Do We Need to Have a Good Sleep?	D．How Long Should We Rest After Learning?

5 . Every day when Glen Oliver orders his morning coffee at the drive-through window of a local cafe, he insists on paying for the order of the person behind him. He also asks the restaurant workers to tell the customer to have a great day, in case they’re not already having one.

Oliver has never made a big deal out of his own generous actions until a letter was published by a news website in November. He found out that he had not just bought someone his breakfast —he had saved a life.

According to the website, someone had written a letter stating that on July 18th, he was planning on committing suicide. The writer said that while he was at the drive-through window, he was planning on going home, writing a note and ending his life. When he went to pay for his coffee and muffin, however, the cashier told him that the man in the SUV in front of him had picked up the tab and told him to have a great day.

“I wondered why someone would buy coffee for a stranger for no reason,” said the writer. “Why me? Why today? If I were a religious man, I would take this as a sign. This random act of kindness was directed at me on this day for a purpose.”

When the writer arrived home, he couldn’t restrain his tears and started to think about the simple good deed that had affected him so deeply. “I decided at that moment to change my plans for the day and do something nice for someone. I ended up helping a neighbor take groceries out of her car and into the house.”

The writer says that in the months following that fateful event, he does at least one kind thing for others every day. “To the nice man in the SUV, thank you from the bottom of my heart. Please know your kind gesture has truly saved a life,” he said. “On July 18, 2017, I had the greatest day.”

1. What is Oliver’s act of kindness every day?

A．Buying others breakfast.

B．Greeting restaurant workers.

C．Publishing positive news.

D．Taking groceries for neighbors.

2. What is special about Oliver’s act of kindness on July 18, 2017?

A．It brought him thank-you letters.

B．It was reported on a news website.

C．It was the first time he’d paid for others.

D．It stopped someone from killing himself.

3. What does the underlined phrase “picked up the tab” mean in Paragraph 3?

A．Paid the bill.	B．Parked the car.
C．Left a message.	D．Ordered a drink.

4. How did the writer of the letter feel after the event?

A．He felt guilty.	B．He felt grateful.
C．He felt confused.	D．He felt sad.

6 . At the foot of the Tianmu Mountain in Zhejiang, a homestay (民宿) is attracting travelers from far and wide, which has won architectural medal at the 2021 German iF Design Awards.

The owners of the homestay are a couple in their late 30s who decided to return to their hometown three years ago. Li Xiumei used to be in charge of a division at a company in Hangzhou, and her husband was a sales director. It was an ordinary situation where Li’s husband was on business trips a lot and Li still worked on weekends. City life sometimes is not easy.

In 2018, they quit jobs and went back to Dongtianmu village, which lies in a forest of bamboo. The first time they drove into the village was one late afternoon. The cooking smoke was rising from the foot of the mountain, which gave them a very different feeling from the city.

The homestay was built beside her husband’s old countryside house. The old house is preserved (保留), while a brand-new building was built on its side and the whole site is made up of four courtyards. It has been updated to have a hall, a tea room, a kitchen, a dining room. Japanese cherry trees are planted in the east courtyard. A swimming pool is placed in the west courtyard, with a bar located on one side.

Li and her husband love gardening and music, and their new home gives them enough space to continue their interests and relax in the heart of nature. Li wants to share the quiet country life, so she makes her new home a homestay. In 2019, the homestay became an online hit after guests shared their experiences on social media. “The longer I stay here, the more I feel it was the right choice to come back, and this is more meaningful than making money,” Li says.

1. How did Li feel about city life?

A．Satisfied.

B．Noisy.

C．Attractive.

D．Tired

2. What impressed the couple when first driving to the village?

A．The forest of bamboo.	B．The smoke of cooking.
C．The fresh air in the village.	D．The feeling of loneliness.

3. What can we infer about the homestay from paragraph 4?

A．It is ancient and broken.	B．It can hold many guests.
C．It must have been carefully designed.	D．It has been rebuilt by the couple.

4. What’s more meaningful than earning money according to Li?

A．Continuing their music dream.	B．Living in the countryside.
C．Staying at the old house.	D．Developing a city.

7 . My teacher Mr. Bush is the most positive person I’ve ever met. He has the ability to _________positiveness to young students.

He always smiles and never gets _________ at students. Once I met some _________ because I felt overshadowed by my brother, who seemed to be doing great in every way. Hopelessness _________ me whenever I was in a classroom. But that all _________ when I met my teacher for life, Mr. Bush. Having found out about my problems, he just kept _______ me. Because of Mr. Bush, my world was filled with _________ and power.

A few weeks ago, everyone in my class was feeling a bit _________ because of a bad day at school. But things got _________ after a close of Mr. Bush’s class. He drew a picture on the whiteboard that __________ a half-full glass of water. He then said, “Class, the point of view in which you look at things will __________ your feelings. Like this glass of water; some people see it and think ‘What! Only half a glass of water. How __________ I am.’ Whereas other people think ‘Wow, I’m so thirsty. Great! Half a glass of water for me!’ It all depends on the __________ you think.”

Mr. Bush’s __________ way of thinking always makes me feel glad and ________. I will always remember him.

1.

A．pass on

B．apply for

C．consist of

D．give up

2.

A．strict

B．patient

C．mad

D．curious

3.

A．friends

B．needs

C．realities

D．difficulties

4.

A．drowned

B．resisted

C．cured

D．relaxed

5.

A．happened

B．changed

C．solved

D．included

6.

A．forgiving

B．calming

C．encouraging

D．calling

7.

A．sunshine

B．clouds

C．surprise

D．flowers

8.

A．cheerful

B．down

C．eager

D．afraid

9.

A．warmer

B．higher

C．better

D．happier

10.

A．served

B．filled

C．bought

D．showed

11.

A．hurt

B．care about

C．give away

D．affect

12.

A．pleased

B．unfortunate

C．bright

D．perfect

13.

A．way

B．direction

C．end

D．past

14.

A．negative

B．optimistic

C．special

D．important

15.

A．proud

B．careful

C．helpful

D．lonely

8 . Welcome to our school. You can do a lot of things here. Come and join us.

Timetable

Sunday 8:30---11:30

Personal Inventions

You can see many inventions by the students; you may also bring your own inventions.

Monday 19:00---21:00

Space and Man

Dr. Thomas West

If you want to know more about the universe.

Wednesday 19:30---21:00

Modern Medicine

Mrs. Lucy Green

Would you like to know medical science?

Friday 18:30---21:00

Computer Science

Mr. Harry Morison from Harvard University(哈佛大学）

Learn to use Windows XP.

1. You may have a chance to introduce your inventions on ________.

A．Sunday	B．Monday
C．Wednesday	D．Friday

2. The person who teaches Computer Science is from ________.

A．Canada	B．Australia
C．New Zealand	D．America

3. You may learn something about an illness called TB from ________.

A．Dr. West	B．Mr. Morison
C．Mrs. Green	D．Mr. Thomas

4. If you want to learn something about satellites(卫星), you can go to the class from ________.

A．8:30 to 11:30 on Sunday	B．19:00 to 21:00 on Monday
C．19:30 to 21:00 on Wednesday	D．18:30 to 21:00 on Friday

9 . My school appeared on the news last week because we had made an important change in our local area. Our class had planted a large garden where there was once only a vacant lot. It was a lot of work but it was all worth it. I got blisters(水疱)from digging, and we all got insect bites, too.

I learned a lot about gardening and teamwork, and then I learned about the media. Our teacher telephoned the TV station and informed them of what we had done. She spoke with the producer. The producer checked with the directors, but they said there were plenty of stories similar to ours. They wanted to know what was special about our garden, because many schools planted gardens.

The teacher explained that, after going on the Internet to learn about the prairie(北美草原), we had made a prairie garden. We had been to a prairie and gotten seeds from the plants, and then we planted them. We did not water the garden, but we did weed it. We decided to let nature water it with rain, because that was how prairies grew in the past. We sent a picture of the garden to the news station. In the picture, the grass was so high that it stood taller than the fourth grade students.

As a result, the producer sent a reporter to our school. The reporter interviewed the headmaster and asked him many questions about the garden. After that, the headmaster interviewed us, and we explained to him what we had learned through this project.

That night, we watched the news, and there we were. The news reporter told our story. It was only two minutes long, but it was us. We were famous. All that work, all those blisters, it was worth it. We knew that when we saw the garden every day, but now we knew that the whole city thought so, too.

1. What seemed to be the TV directors’ first reaction to the garden?

A．They were excited.

B．They were surprised.

C．They were uninterested.

D．They were worried.

2. What is special about the garden?

A．The seeds came from the plants of a prairie.

B．The grass grew faster than common grass.

C．We sent a picture of it on the Internet.

D．Underground water was used for the plants.

3. What do the underlined words “that work” refer to in the last paragraph?

A．Their blisters on their hands.

B．Their hard work planting the garden.

C．The garden they planted.

D．The news they watched.

4. What can you learn from the passage?

A．All roads lead to Rome.

B．Never too late to learn.

C．Practice makes perfect.

D．Hard work pays off.

10 . Until quarantine (隔离期) ends, we are left picturing what sport we might do: working out at the gym, playing on a competitive sports team, swimming, biking, or rock climbing. However, we don’t often think of martial arts as possible activities; instead, we rule it out because we think it’s dangerous, uncommon, and even, impossible. Martial arts aren’t considered a sport, right?

Well, here’s some good news: you’re wrong! Martial arts aren’t much more common than people think, and you can start learning at any age. Practicing martial arts is a great way to keep in shape, both physically and mentally. They’re much less boring and much less arduous sport than they’re usually described as in movies, so do not worry that they need a lot of effort.

Martial arts generally require you to focus on the position and movement of every one of your legs and arms, sometimes even your breathing too. Think about it: when you leave the gym, your mental state has improved and you are much calmer. This is because you’ve only paid attention to one activity. It is a great way to clear your head. And practicing it can help you learn to stay more focused, which is the greatest advantage of martial arts training.

Martial arts also improve your coordination (协调性), and greatly improve your posture (姿势). I have personally seen students go from slouching (没精打采) to walking tall with their shoulders back in just a couple of months.

There are many styles and countless kinds of martial arts. Whichever one you like better, know that all of them are good choices.

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

A．They often have people hurt.	B．They are difficult to practice.
C．People have a wrong view on it.	D．People practice them more often.

2. What does the underlined word “arduous” in paragraph 2 mean?

A．Interesting.

B．Difficult.

C．Friendly.

D．Exciting.

3. What is the biggest benefit of practicing martial arts?

A．Adjusting the breath.	B．Enjoying one’s free time.
C．Correcting the movement.	D．Keeping one’s attention.

4. What does the writer think of martial arts?

A．They are not sports.	B．They attracted many teenagers.
C．They are beneficial and helpful.	D．They were invented to protect others.