1 . Lucky, a black-and-white Boston Bull Terrier, had been owned by a man, Fred, who had a mental disorder that required him to take medicine. This _______ made him sleep quite deeply, so Fred only took it at bedtime. Lucky _______ by his side.

One night, Fred _______ his medicine, went to bed and fell asleep. The house wiring shorted and caught the house on _______. Being under the medicine's power, Fred just _______to sleep. Lucky barked and barked, but Fred didn't _______ him. Lucky wasn't a trained aid dog but just a special animal that _______ what to do.

When Lucky realized Fred wasn't _______ up, he jumped into the middle of his chest and started licking his face. Fred finally woke up and _______ the house was on fire. He crawled out of the bedroom window.

Once outside, Fred realized he had ________ his dog. He reached through the ________ and grabbed Lucky, pulling him to safety. After the fire, Fred had to move into an apartment where he couldn't have   ________ So he placed Lucky with a friend of his with the intention that a good home should be ________ for him.

My son and I saw an ad in the paper for a good home offering Lucky for ________, and called. We brought him home. We've ________ him for two years now, and he is four years old. Lucky inhaled （吸入）so much smoke the night of the fire that his bark will never be normal again. He sounds terrible, but he has the spirit of a lion.

1.

A．illness

B．medicine

C．condition

D．request

2.

A．passed

B．shouted

C．worked

D．slept

3.

A．took

B．lost

C．tested

D．ignored

4.

A．fire

B．sale

C．time

D．show

5.

A．began

B．stopped

C．continued

D．refused

6.

A．feed

B．like

C．hear

D．bear

7.

A．admitted

B．knew

C．asked

D．taught

8.

A．giving

B．waking

C．looking

D．opening

9.

A．realized

B．believed

C．proved

D．informed

10.

A．aimed at

B．thought of

C．left behind

D．brought up

11.

A．wall

B．door

C．sheet

D．window

12.

A．kids

B．pets

C．friends

D．noises

13.

A．kept

B．built

C．decorated

D．found

14.

A．cure

B．protection

C．permission

D．adoption

15.

A．raised

B．missed

C．trained

D．appreciated

2 . Calling someone a “birdbrain” is considered rude. It implies that someone has a small brain and thus is not smart. A new study found that the expression doesn’t do birds justice either. Birds’ brains are much bigger than we thought-at least compared to their small bodies.

An international team of 37 scientists measured the brain volume of hundreds of dinosaurs and extinct birds by scanning fossils of their skulls. The readings were compared to a large database containing the brain sizes of modern birds. These measurements were then analyzed, taking into consideration each bird’s body size-resulting in something called “relative brain size”. The results showed that a dramatic change of birds’ body size happened right after the mass extinction of dinosaurs 66 million years ago.

According to the study, published on April 23 in the journal Current Biology, birds and non-avian (非鸟类的) dinosaurs had similar brain sizes before the extinction. After the extinction of the dinosaurs, however, birds had to find a way to survive, so they shrank their bodies-since smaller animals need less food-but they kept their big brains.

“The changed landscape may have caused the rapid evolution of new brain-body scaling patterns (缩放比例) by favoring both larger brains and smaller bodies,” US paleontologist (古生物学家) Daniel Ksepka, who is the lead author of the study, told CNN.

This “evolutionary brain leap”-as scientists call it-also happened very rapidly. Without dinosaurs, birds quickly repopulated. They came in all types and sizes, which contributed to the diverse species of birds we see today.

But among all the bird species, certain ones “show above average rates of brain and body size evolution”, study co-author Adam Smith at Clemson University, US, said in a statement-with crows and parrots being the most evident. In fact, previous studies have already discovered that these birds have an amazing cognitive ability. They are able to use tools, imitate human speech and even remember human faces.

So, in the words of Smith, “calling someone ‘bird-brained’ is actually quite a compliment!”

1. How did scientists learn the brain sizes of dinosaurs and extinct birds?

A．By referring to a database.

B．By analyzing their body size.

C．By studying their fossil skulls.

D．By examining the brain size of modern birds.

2. What were birds’ brains like after the extinction of the dinosaurs?

A．They were the same size as non-avian dinosaurs.

B．They shrank to adapt to the environment.

C．They kept growing to avoid extinction.

D．They remained as big as they were before.

3. According to Adam Smith, what do we know about birds?

A．Their brain evolution happened very rapidly.

B．Some species evolved to be smarter than others.

C．Crows and parrots have the largest bird brains.

D．Birds have amazing abilities to copy human speech.

4. What is the purpose of this text?

A．To explain the origin of the word “birdbrain”.

B．To describe how a bird evolved through history.

C．To present a new study on birds’ brain size.

D．To reveal reasons for the rapid growth of bird populations.

3 . An estimated 60 percent of cats and 50 percent of dogs in the U. S. are overweight or obese, so chances are that your pet needs to lose weight rather than pack on some pounds. It's not always easy to tell if your pet could afford to lose few, but there are some other signs that can tip you off. One important factor the waist, "Most people don't know what a normal cat should look like," says Romine. "But cats should have waists, too." The vet says you should be able to feel your pet's ribs（肋骨） through its coat, and when you look down at them, they should have an hourglass（沙漏）shape---just like person.

"For some overweight pets, you may want to switch to new food entirely; foods with 'light' or 'healthy weight' labels usually have an increased fiber content to help the dog or cat feel fuller," Romine notes. "Another option is to feed them less of the food they currently cat," Freeman suggests. "Make sure you're reducing table scraps（残羹剩饭）and high-calorie treats like pet biscuits," she says.

It's important to figure out what your pet's ideal weight is as you're helping them to lose. Romine advises working with your vet to get the right number, and if you're following the portion guidelines often printed on food labels, feed them the amount of food associated with the weight you want them to be, rather than the weight they currently are.

Food isn't the only factor that can impact your pet's weight. Romine stresses the importance of exercise in keeping your pet healthy. For cats, just 10 minutes of indoor play each day can make a difference. For dogs, letting them out in the backyard to do their business is not enough. You'll have to exercise with your dog to really get them moving.

1. What is the problem with the pet from the text?

A．It needs to lose weight.	B．It needs have waists
C．It needs to pack on pounds.	D．It needs to be more energetic.

2. Which food can help overweight pets?

A．The food with an decreased fiber.	B．The food from table scraps.
C．The food with "light" labels.	D．The food with new label.

3. What is an important factor to keep pets healthy?

A．A partner.	B．Exercise.
C．Pet biscuits.	D．Protein.

4. From which is the text probably taken?

A．A biology textbook.	B．A travel brochure.
C．A recipe book.	D．pet magazine.

4 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Penguins are some of the most recognizable and beloved birds in the world and even have their own holiday: World Penguin Day. It     1     (celebrate) every year on April 25. Penguins are also     2     (amaze) birds because of their physical adaptations to survive in unusual climates and to live mostly at sea.

Penguins are primarily found only in the Southern Hemisphere (南半球), while most people associate penguins with Antarctica in     3     these birds are much more widespread. Penguin populations can be found in South America, South Africa, Australia and New Zealand, as well     4     many small islands in the southern Pacific Ocean.

The naturally northernmost penguin species is the Galapagos penguin, which lives year round near the equator on the Galapagos Islands. This penguin     5     (regular) crosses the equator into the Northern Hemisphere as it swims while feeding.

Penguins lost the ability to fly     6     (million) of years ago, but their powerful flippers (脚蹼) and streamlined bodies make them become     7     (skill) swimmers. They are the fastest swimming and deepest diving species of the bird and can stay underwater up to 20 minutes at     8     time. While swimming, penguins will leap above the surface of the water.

Penguins’ eyes work     9     (well) underwater than they do in the air, giving them superior eyesight     10     (spot) prey (猎物) while hunting, even in cloudy or dark water, or in the rapid flow. What a surprising and cute animal it is!

5 . How Not to Annoy Wild Animals at National Parks

National parks are a treasure that offer the chance to view native plants and animals in their natural habitat. However, as the number of visitors and wildlife populations increases, humans and animals too often find themselves in close distance.     1    

Remember that the animals living in national parks are wild. Wild animals can be unpredictable and in national parks and many state parks, they are not contained.     2     Never think that it is safe to approach them.

    3     Stop by the visitor’s center and take the time to read about the types of wildlife in the park and what to expect. The park service posts these signs to protect you and the wildlife. So, if you see the warning signs, take care.

Make sure you give animals space. The general rule is to keep 25 yards away from all wildlife, and a minimum of 100 yards away from wolves and bears.     4     If you’re out hiking and you encounter wildlife, stick your thumb out and hold it out at eye level. If your thumb covers the entire animal, you’re a safe distance away from that animal.

Some wild animals look adorable and maybe you think handing them a snack or two won’t hurt.     5     Feeding wildlife is a bad idea and you risk getting a bite. Plus people food is not healthy for animals and it makes them learn that people aren’t the threat. This becomes a vicious cycle (恶性循环) that results in people getting too close and getting hurt. Wildlife have all they need to eat in their environment.

A．But don’t do it.

B．You can follow the “rule of thumb”.

C．In national parks, there are warning signs everywhere.

D．At certain times of the year, wildlife can be more lovely.

E．So it’s important to know how to respect wildlife and stay safe.

F．In another word, they go anywhere within the park as they please.

G．You should always pack up food after a picnic stop or at the campground.

6 . As part of his role in the Air Force Volunteer Reserve, John Lewis often visited military schools. But it was at a London school in 2014 that an accident happened. He had 11 operations in total and it was two years before he could walk again.

Although John improved physically, he couldn’t recover from what had happened. John was diagnosed with post -traumatic (创伤后) stress disorder (PTSD), but none of the treatment seemed to help. Then last year, at a hospital, a doctor told him a puppy   (小狗) could manage stress and might help with his anxiety.

In May 2019, they adopted a black puppy called Gibson. He says, “I'd never thought of it as a comfort. After just a few weeks, I could feel myself improving. If I was feeling anxious, he would jump up on the sofa and sit on my chest and I found that really relaxing and comforting. Wherever I go, he will follow me and it’s really helpful to my anxiety. We go out and play Frisbee (飞盘) and I now look forward to going out for walks while I would always make excuses to stay in the house before.”

His wife Anna has also noticed a difference. She says, “Gibson is an incredible dog that adores John. He is a fantastic companion. It has given him a focus and a lease on life.”

John is now. taking part in Generation Pup, a groundbreaking study that tracks puppies through adulthood to learn how their early experiences and environment affect their development. John says, “I really enjoy tracking this through the study, watching his personality begin to grow and support me on my road back to mental health, which he is playing a big part in.” “Gibson has done so much for me in a short space of time. I want to do something for him.”

1. What can we learn about John Lewis after the accident?

A．He couldn't bear the pain of the operations.

B．He soon stood up and returned to his post.

C．He suffered a lot from mental problems.

D．He still focused on the life in military schools.

2. What do John’s words in paragraph 3 show?

A．How to raise a puppy.	B．How naughty Gibson was.
C．How to get on with a puppy.	D．How Gibson comforted him.

3. What does the underlined part “a lease on life” in paragraph 4 mean?

A．More wisdom.	B．Better life.
C．Great wealth.	D．Lifelong ambition.

4. What can be inferred from the last paragraph?

A．John is grateful to Gibson.	B．John makes full use of Gibson.
C．John has recovered from PTSD.	D．John has researched a lot on puppies.