1 . 阅读下面短文，根据短文内容填空。在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Sharks are often thought of as hunters living alone, however, a new study has found that some species create social networks and    1    (connection) that can last for years.    2    the study shows is that some sharks form groups of between two and fourteen. These groups gather in the morning in the same part of the reef. At night, the sharks leave the reef on their own but they come back together again the next day. The study also    3    (note) that many groups stay together for the whole process.

2 . Everyone ________ (experience) stress. For students, studying for many hours and preparing for exams can really have an influence ________ our well-being and health. (所给词的适当形式填空)

3 . 阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写一个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Now, at Hailang River in northeast China’s Heilongjiang Province, dozens of Chinese merganser ducks are preparing to migrate south. Chinese merganser duck is an     1    (danger) species under class-one state protection. In recent years, the province has beefed up measures     2    (restore) forests, wetlands and other ecosystems. China has established 49 nature reserves     3     a total area of 2,561, 300 hectares. Thanks to these efforts, the local population of Chinese mergansers     4    (grow) from around a dozen to nearly100 over the past few years.

4 . One day, while homeless John was asking for money, he met a woman named Gladys Kamande. She had collapsed lungs that gave her shortness of breath and she ________ relied on some medical instruments to breathe. Not only that, she had ________ 12 surgeries, one of which caused her to go blind.

After knowing her situation, John’s eyes ________ with tears. Then, despite not having the resources to support himself, John found his own way to help her. He ________ into his pocket and gave her what little money he had. At that time, John had no idea just how ________ he was!

A passerby named Njogu ________ the whole process. “I asked him why he decided to give the only money he had,” Njogu said. “He told me he opted to give because even if he suffered the same, others would support him.” Struck by what the little boy did, Njogu shared stories and photos of the heartwarming ________ on social media.

Soon, John’s story spread across social media and generous strangers from all around the world began donating money in an effort to help. In fact, enough was raised to ________ the treatment Gladys needed in India.

But that’s not where the good news ends. John’s simple ________ helped him get into a children’s home. Finally, this sweet boy was adopted, giving him a family.

John and Gladys were both able to get the help and the bond they formed that crucial day continues on. It just goes to show that a little ________ can go a long way!

1.

A．randomly

B．seldom

C．occasionally

D．constantly

2.

A．cut through

B．gone through

C．checked on

D．got away

3.

A．welled

B．moved

C．wept

D．cried

4.

A．touched

B．picked

C．reached

D．grabbed

5.

A．talented

B．proud

C．special

D．right

6.

A．witnessed

B．confirmed

C．monitored

D．sought

7.

A．spot

B．moment

C．guidance

D．works

8.

A．spare

B．adjust

C．cover

D．pack

9.

A．strategy

B．habit

C．prediction

D．interaction

10.

A．kindness

B．courage

C．determination

D．passion

5 . Sam and Lightning

Twenty-one years ago, my husband gave me a dog named Sam. Later, when we were in New Jersey, our neighbor asked us if we would like a cat. We were a little _________ that Sam would feel angry, but we decided to risk it. We picked a little, grey, playful cat. She was very _________ and raced around as if she were running after imaginary mice and jumped from table to chair in the blink of an eye, so we named her Lightning.

At first, Sam and Lightning were very cautious of each other and kept their distance. Slowly, however, Lightning started to _________ Sam up the stairs, down the stairs, into the kitchen to watch him eat, and into the living room to watch him sleep. As time passed, they were always together. When I played with one, the other _________. If Sam barked at something, Lightning ran to _________ what it was. When I took either one out of the _________, the other was always waiting by the door when we returned.

But one day, without any warning, Sam died of a heart attack at the vet's and I had to walk back to our house _________. There was no way for me to _________ why Lightning would never see her friend again. In the days that followed, Lightning seemed heartbroken. She could not tell me in words that she was _________, but I could see the sufferings in her eyes.

As the weeks went by, the cat's ____________ seemed to be lessening. One day I happened to find Lightning was sleeping with her best friend's statue, with one arm wrapping the statue's neck.

1.

A．worried

B．pleased

C．annoyed

D．surprised

2.

A．shy

B．active

C．quiet

D．silent

3.

A．pull

B．touch

C．knock

D．follow

4.

A．went out

B．stood up

C．joined in

D．broke away

5.

A．smell

B．see

C．tell

D．ask

6.

A．hospital

B．house

C．nest

D．family

7.

A．alone

B．together

C．cheerfully

D．quickly

8.

A．explain

B．count

C．argue

D．call

9.

A．anxious

B．nervous

C．sad

D．happy

10.

A．doubt

B．wish

C．wound

D．sorrow

6 . 阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写一个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Scientists in Australia have built a new battery using sodium-sulphur, a type of salt from sea water. The battery can store four times more energy than a standard lithium battery and would be cheap to make     1     sea salt is widely available. It is also better for the environment than other batteries,     2     use rare metals (such as lithium). Sea-salt batteries have been made before but this is easily the best model so far. The team will continue working on the idea before this kind of the batteries     3    (go) on sale.

7 . 阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写一个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Elle Gianelli wanted to put a smile on the faces of the seniors who     1    (live) in nursing homes. So she found a creative way to do that. Born out of her love for wearing silly socks on the golf course, Elle Gianelli launched Socks4Seniors,     2    (raise) money via GoFundMe. When     3    (ask) what the money was for, she explained it would be used to purchase bright, patterned socks and thoughtful notes for all seniors in assisted living facilities in the country.

8 . Ask a smart home device for the weather forecast and it takes several seconds for the device to respond. This latency (延时) occurs as connected devices don’t have enough memory or power to store and run the enormous machine-learning models needed for the device to understand what a user is asking of it. The model is stored in a data center that may be hundreds of miles away, where the answer is computed and sent to the device.

MIT researchers have created a new method for computing directly on these devices, which drastically reduces this latency. Their technique shifts the steps of running a machine-learning model to a central server where components of the model are encoded onto light waves. The waves are sent to a connected device using fiber optics (纤维光学), which enables tons of data to be sent lightning-fast through a network. The receiver then employs a simple optical device that rapidly performs computations using the parts of a model carried by those light waves.

This technique leads to more than a hundredfold improvement in energy efficiency when compared to other methods. It could also improve security, since a user’s data do not need to be transferred to a central location for computation. This method could enable a self-driving car to make decisions in real-time while using just a tiny percentage of the energy currently required by power-hungry computers. It could also allow a user to have a latency-free conversation with their smart home device, be used for live video processing, or even enable high-speed image classification on a spacecraft millions of miles from Earth.

“Every time you want to run a neural network, you have to run the program, and how fast you can run the program depends on how fast you can pipe the program in from memory. Our pipe is massive — it corresponds to sending a full feature-length movie over the internet every millisecond or so. That is how fast data comes into our system. And it can compute as fast as that,” says professor Dirk England.

The neural network architecture involves storing weights in a central server that is connected to a novel piece of hardware called a smart transceiver. This smart transceiver, a thumb-sized chip(芯片), can receive and send data. Moving forward, the researchers want to update the smart transceiver chip to achieve even better performance.

1. What’s the paragraph 1 mainly about?

A．The cause of the latency.

B．The effect of the latency.

C．The advanced smart device.

D．The models stored in a data center.

2. How does this new method reduce latency?

A．By improving the parts of a model.

B．By using optics to speed up computations.

C．By computing directly in remote data centers.

D．By inventing a new machine-learning model.

3. The author mentions a self-driving car to ________.

A．introduce the impact of the latency

B．explain how data is quickly computed in this system

C．demonstrate the technique’s energy saving and safety

D．highlight the user’s satisfaction with modern technology

4. What can we infer from this passage?

A．The new technique will be further improved.

B．Optics needs to be developed and used urgently.

C．The new computing architecture is very perfect.

D．The technique was developed to send movies over the internet.

9 . Enjoy the family-friendly adventure at Dino Park in Myrtle Beach! This exciting museum gives guests the chance to come face-to-face with life-sized dinos! These beasts have a vast history that will spark imagination and allow visitors of all ages to enjoy educational fun.

During your self-guided adventure through Dino Park, you will be treated to up-close views at dazzling animatronics(电子动画) of your favorite scaly dinosaurs. There are more than 20 life-sized dinosaurs to discover. Along the way, you will be able to learn about some awesome dino facts and get your fill of prehistoric fun!

Additionally, visitors will be able to enjoy CGI footage that gives a glimpse into the lives of the dinos. It is the perfect way to learn all about the dinosaurs through interesting facts and hands-on activities. Throughout the museum are various facts about the dinosaurs displayed on informative and colorful posters.

Dino Park activities

Dino Explore Pit: The kids will have a blast diving into the Dino Explore Pit! This ball pit features 100,000 balls offering tons of room to bounce around. It is a fun attraction for all ages to enjoy.

Dig a Dino Fossil: Become a real-life archaeologist as you put your digging skills to the test! Look out for some awesome fossils as you search for the next greatest dinosaur discovery.

Ride a Tyrannosaurus: This fun animatronic ride is perfect for kids who want to experience some thrilling fun! Climb aboard for an action-packed ride that you won’t soon forget.

Play Area: Kids will enjoy burning off some extra energy at the playground area. The playground features dino-themed puzzle floors, bright pictures on the walls, and play equipment featuring a slide and dinosaurs they can climb on.

So, whether you are a longtime dinosaur lover or want to bring the kids to see some moving dino park exhibits, you are sure to have a great time here!

1. At Dino Park, visitors ________.

A．can feel the joy of prehistoric times

B．will be taught animatronics face to face

C．will be able to find the perfect way to see CGI film

D．can participate in hands-on poster making activities

2. Which of the following will remain fresh in the minds of kids?

A．Dino Explore Pit.	B．Dig a Dino Fossil.
C．Ride a Tyrannosaurus.	D．Play Area.

3. What is the purpose of the passage?

A．To introduce a variety of life-sized dinosaurs.

B．To recommend a museum with educational fun.

C．To compare the different activities at the Dino Park.

D．To provide archaeologists with some clues about dinosaurs.

10 . The United Nations Educational, Scientific and Cultural Organization (UNESCO) is responsible for evaluating and judging whether a place could be titled The World Heritage Site. The group chooses sites based on historical and cultural importance, as well as their beauty.

The World Heritage in Beijing

Constructed from 1406 to 1420, The Temple of Heaven is an imperial complex of religious buildings situated in the central area of Beijing. The Temple of Heaven was inscribed as a UNESCO World Heritage Site in 1998 and was described as a masterpiece of architecture and landscape design.

The Temple comprises three main groups of constructions: The Hall of Prayer for Good Harvests, The Imperial Vault of Heaven and The Circular Mound Altar.

The World Heritage in Luoyang

Situated on the central plain of China, Luoyang is one of the cradles of Chinese civilization.

The Longmen Grottoes, south of the city, were excavated and carved from 493 AD to 1127 AD. It was listed on the UNESCO list of World Heritage Sites in 2000.The images were carved as outside rock reliefs and inside artificial caves. There are as many as 100,000 statues within the 2,345 caves. The area also has over sixty Buddhist pagodas.

The World Heritage in Wiltshire

Stonehenge is a prehistoric monument in England. It consists of a ring of standing stones, topped by connecting stones. The whole monument, now ruinous, is oriented towards the sunrise on the Summer Solstice.

Stonehenge is regarded as a British cultural icon. The site and its surroundings were added to UNESCO’s list of World Heritage Sites in 1986.

Archaeologists believe Stonehenge was constructed from 3000 BC to 2000 BC. It could have been a burial ground from its earliest beginnings.

1. What can we learn about Stonehenge?

A．Stonehenge is a symbol of British culture.

B．Stonehenge has a history of 3000 years.

C．Stonehenge consists of stones and wood.

D．Stonehenge is not oriented towards the sunrise.

2. According to the passage, we can learn that ________.

A．there are 100,000 caves in The Longmen Grottoes

B．The Temple of Heaven has three main groups of buildings

C．only one site in Luoyang is listed in The World Heritage Sites

D．the Temple of Heaven has been titled the World Heritage Site for 30 years

3. What do the three sites in the text have in common?

A．They have caves, halls and statues.

B．They are ancient imperial buildings.

C．They all have historical and cultural value.

D．They are connected with Buddhist culture.