2 . Does eating have anything to do with exercise in our daily life? Some experts suggested that we should wait before exercise after eating. And the food you eat will decide how long you will wait before exercise.

Though not everyone who exercises after a meal experiences problems, eating a meal too close to the time you exercise could lead to discomfort. It’s because most food s take hours to digest and some people feel uncomfortable in the process, which could get in the way of meaningful exercise. “For some, eating right before exercise could cause an upset stomach.” adds Allen, a professor at Missouri State University.

According to recent researches, waiting to exercise after eating may better the quality of your exercise. It can improve one’s physical condition and better the exercise. The question then for many people comes down to how long they should wait between eating and exercising — a question to which there is no clear answer.

A good rule is for the time to correlate with the size of the meal one eats. “If you have a big meal such as a toast and potatoes, wait three to four hours to exercise. For a smaller meal such as a sandwich or a protein bar, wait about two hours. For something light like a piece of fruit or orange juice, thirty to sixty minutes is fine.” she advises.

But there is no hard and fast rule, and the time recommended can vary. “The time you wait depends on you, so experiment and see how long works best for your body.” says Allen, “If you can stand it, feel free to eat a healthy snack before you exercise. What I strongly recommend is to pay attention to your body’s needs and do what is best for you.”

1. What may happen if you exercise right after eating?

A．You may feel uncomfortable.	B．It may lead to a positive result.
C．You may need hours to recover.	D．It may provide meaningful exercise.

2. How long should one wait to exercise after eating a sandwich?

A．About 3 hours.	B．About 2 hours.
C．About 30 minutes.	D．About 60 minutes.

3. What does Allen suggest people do in the last paragraph?

A．Find hard and fast rules.	B．Change the exercise time.
C．Enjoy the healthy snacks.	D．Respect the body’s needs.

4. Where can the text be found?

A．In a novel.	B．In a history book.
C．In a travel brochure.	D．In a fitness magazine.

3 . The first time Mohamed went to a restaurant in his new neighborhood, he realized that he wasn’t in Tunis anymore. He was excited when he first arrived here, but now, his excitement seemed gone.

He looked at the menu, not knowing what these names meant, and ordered an ice cream in a cup. While waiting, he looked at the pizzas, breads and cookies.

The waitress came back with a cup of soda. Mohamed, though feeling mystified at first, took it and thanked her. He must have used the wrong word! Then he forced a smile and pointed at a cookie, “That one, too”, which seemed to work.

Mohamed took his food to a table. Why had English been so easy in classes, but when it came to actually speaking, he couldn’t even name what he wanted. Mohamed wondered how foreigners traveling to Tunis would feel and if they would find their academic French was not the same as French in real life. The food would make them feel out of place. He smiled to himself, thinking about how hot the peppers were in Tunisian dishes, and how his mother had to avoid using them and cook western-style food every time they had foreign visitors.

Just then, a girl came over and asked, “Are you Professor Ammar’s son? ” He nodded, excited to talk to someone but hoping she didn’t notice what had happened. “I’m Luisa.” the girl said, “Don’t feel bad about your English — you’ll get better at it. I’m from Spain. The first time I tried to order a salad here, I ended up with a plate of pig’s feet!” Mohamed breathed a sigh of relief and realized that he wasn’t the only one struggling to communicate.

1. What did Mohamed plan to order?

A．Soda and bread.	B．Peppers and pizza.
C．Ice cream and cookie.	D．Pig’s feet and salad.

2. Which can replace the underlined word“mystified” in Paragraph 3?

A．Threatened.

B．Content.

C．Excited.

D．Confused.

3. What can be inferred about Tunisian dishes?

A．They taste hot with peppers.	B．They have strange names.
C．They attract foreign visitors.	D．They have many varieties.

4. Why did the girl talk to Mohamed?

A．To warn him.	B．To cheat him.
C．To encourage him.	D．To challenge him.

6 . Top Scientific Breakthroughs in 2023

The pace of innovation never slows, and the impact of the breakthroughs will redefine the way we live, work and connect with the world.

A New Era for Space Exploration

Space exploration is one of the core missions in many countries. Recently, the newest mission to the moon was launched as NASA’s Artemis Program, which would pave the way for a future mission to Mars. This new era of space exploration will drive technological advancements in fields beyond astronautics and stimulate progress in real-world applications like materials, food science, and modern industry.

A Milestone in AI Predictions

For decades, the scientific community has chased a greater understanding of relationships between protein functions and 3D structures. In July 2023, Deep Mind revealed that the folded 3D structure of a protein molecule (分子), which reduced the number of human proteins with unknown structural data from 4,800 to just 29. While there will always be challenges with AI, the ability to predict protein structures in biology has implications across all life sciences.

Greener Fertilizer Production

Every year, billions of people depend on fertilizers for the ongoing production of food, and reducing the carbon footprint and expenses in fertilizer production would reshape the impact agriculture has on emissions. To reduce energy requirements, researchers from Tokyo Tech have developed a noble-metal-free catalyst (催化剂), which is much more environmentally friendly and safer to the agricultural produces.

Supercomputer—Exascale

Exascale computers, which can perform a mind-boggling quintillion (10¹⁸) mathematical operations per second, finally arrived in 2023. They’ve already helped refine weather forecasts and design new materials, and new ones will be coming online soon. The world’s most powerful supercomputers, operating at the far frontier of speed known as the exascale, have now begun to boom. These results from exascale machines coming online in the next few years promise to open a new window into materials, climate science, and medicine.

To stay ahead of emerging trends, new discoveries and unique perspectives, we invite you to subscribe to CAS Insights!

1. What do the Space Exploration and Fertilizer Production have in common?

A．They take a lot of time.	B．They make influence on the food.
C．They need government cooperation.	D．They cost a big sum of money to maintain.

2. Which aspect has a close connection with biology?

A．A New Era for Space Exploration.	B．A Milestone in AI Predictions.
C．Greener Fertilizer Production.	D．Supercomputers—Exascale.

3. Where is this text probably taken from?

A．A textbook.

B．An exam paper.

C．A magazine.

D．A science fiction.

7 . Once upon a time, in a little village called Charmington, there lived ashy and unconfident girl named Lily. Lily was a kind-hearted soul, but her lack of self-assurance (自信) often led her to doubt her own beauty and worth.

One sunny day, as Lily wandered through the streets of Charmington, she came across a charming little shop filled with shining hair accessories (配饰). Among the treasures, her eyes were attracted by a lovely bow (蝴蝶结) that seemed to callout to her.

Despite her hesitation, something inside Lily told her to take a small act of self-expression and pay for the bow. She bought it and gently put it in her hair. At that very moment, a magical transformation (变化) took place. Lily felt a burst of confidence, as if the bow had given her a newfound confidence and charm.

Excited about her new accessory, Lily confidently walked down the busy streets of Charmington, unaware that the bow had slipped and dropped unnoticed from her hair. Her newfound confidence made her feel beautiful inside and out.

As Lily walked, something amazing began to happen. People passing by couldn’t help but notice her beauty, the warmth that shined from herself. Strangers smiled at her, complimenting (赞美) heron her look and bright smile.

Confused by their compliments, Lily touched her hair, only to realize that the bow was missing. Instead of feeling embarrassed or disheartened, she couldn’t help but be amazed by the power of her own confidence.

Lily began to understand that true beauty lies not in outside decorations but in self-assurance and grace. It was her confidence that had caught the attention and admiration of those around her.

1. What was the biggest challenge for Lily?

A．She was not beautiful.	B．She lived in a tiny village.
C．She was shy and unconfident.	D．She was too poor to buy accessories.

2. What happened to Lily’s new bow?

A．It was stolen.	B．It slipped from her hair.
C．It turned to be a jewelry.	D．It was transformed by magic.

3. What was Lily’s final attitude towards herself?

A．Confident.

B．In different.

C．Objective.

D．Negative.

4. What’s the most important lesson of the passage?

A．To see is to believe.	B．It’s never too old to learn.
C．Confidence is the best accessory.	D．A journey of a thousand miles begins with a single step.

8 . For many people, visiting a wildlife park is a must-have bucket-list item. Few travel experiences can compare with watching wild animals wandering freely in wildlife reserves, enjoying their natural habitat. Here are some of the very best wildlife parks from all around the world.

1. Masai Mara National Reserve, Kenya

The Masai Marais located in the southwest of Kenya and is one of the most important and well-known wildlife conservation areas in the world. Covering an area of 1,510square kilometers, the Masai Mara National Reserve consists of the grasslands, mountain highlands, lakelands and valley.

Those looking for an unforgettable traditional wildlife park experience should look no further than the Masai Mara National Reserve. Famous for its natural diversity of animals, you can expect to see vast numbers of leopards, elephants and lions. The wildlife park is also home to over 450 bird species.

2. The Serengeti National Park, Tanzania

Listed as a UNESCO World Heritage Site, the Serengeti National Park is a land of beauty that is one of the last naturalistic wonders left on this planet. This wildlife park is the symbol of Africa, and also one of the world’s oldest ecosystems to ever exist. Located in the northern area of Tanzania, the Serengeti National Park has also been famous for the annual migration (迁徙) of wildlife to permanent waterholes.

During this phenomenon, you’ll get to see vast herds of zebras, buffaloes and elephants migrating to the waterholes due to the change of season, followed by predators(捕食者) on the hunt for them.

3. Tierra del Fuego National Park, Argentina

The Tierra del Fuego National Park, located at the southern tip of Argentina, is nestled between the Atlantic and Pacific Oceans, thus featuring a dynamic weather ecosystem with beech forests, mountains, waterfalls and glaciers (冰川). Not quite the image you may have in mind of a wildlife park being muddy, brownish and all dry landscapes.

It is a most breathtaking wildlife park, home to beautiful species such as eagles, rabbits and North American beavers. Aside from basking in the sightings of these wild animals, visitors to Tierra del Fuego often go hiking and fishing there.

1. Which park would you recommend to someone who is looking for a traditional wildlife tour?

A．Masai Mara National Reserve.	B．The Serengeti National Park.
C．Tierra del Fuego National Park.	D．None of them.

2. Which special activity can visitors do in The Serengeti National Park?

A．Hiking and fishing in the park.	B．Creating a must-have bucket-list.
C．Exploring numbers of different landscapes.	D．Watching the annual migration of many animals.

3. What is the unique feature of Tierra del Fuego National Park?

A．It is naturalistic.	B．It is the most famous one.
C．It has the oldest ecosystem.	D．It has waterfalls and glaciers.

10 . Fun Fall Weekend Getaways

Gulf Shores, Alabama

Alabama’s Gulf Shores is attractive year-round, but the fall months bring fewer crowds and more affordable prices on hotels. Head to Gulf Shores for warm ocean waters and lovely whites and beaches that you may have all to yourself. There’s also plenty to do at this beach destination outside of playing in the sand and surfing. For example, you can visit a downtown music bar.

Albuquerque, New Mexico

Albuquerque’s amazing landscapes provide an enjoyment for visitors year-round. However, visiting in fall allows you to enjoy the famous Albuquerque International Balloon Fiesta, which takes place in October. Book a trip in early October to see hundreds of brightly colored balloons dot the sky—you can even take a balloon ride yourself. Because this hot air balloon festival is such a popular event, you’ll want to secure accommodations well in advance.

Laconia, New Hampshire

You may not have heard of Laconia before. This small New Hampshire city is mostly known for its incredible fall festivals. Perhaps you’ve heard the famous New Hampshire Pumpkin Festival, which takes place here in late October. Plan a weekend getaway to check out the amazing display of jack-o’-lanterns, live music, the Children’s Costume Parade, a cornhole tournament and more.

Shenandoah National Park, Virginia

Located around 75 miles southwest of the nation’s capital is Shenandoah National Park, a great place for leaf peeping(赏叶) and exploring the outdoors in autumn. This national park has more than 200, 000 acres of forest, waterfalls, flower fields and plenty of wildlife. For example, you can spot black bears, deer and birds throughout the national park.

1. What can tourists do in Alabama’s Gulf Shores?

A．Enjoy whites and beaches.

B．See beautiful fallen leaves.

C．Attend pumpkin exhibitions.

D．Watch the Children’s Costume Parade.

2. Why are people advised to travel to Albuquerque in fall?

A．There are fewer tourists.	B．There is a famous balloon festival.
C．They can take a balloon ride for free.	D．They can save money during the trip.

3. Which place should you visit if you are interested in wildlife?

A．Gulf Shores.	B．Albuquerque.
C．Laconia.	D．Shenandoah National Park.