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阅读短文内容，在空白处填入1个适当的单词或括号内单词的正确形式。

Since Brad Ryan began to take grandma Joy on trips to the breathtaking landscapes of America, they 1. (go) through dozens of cross-country adventures.

In 2015, Brad Ryan visited his 85-year-old grandma 2. (live) a simple life on her own, and then he hoped that spending some quality family time with her would help to lift her spirits. When he told 3. (story) of his travels to his grandma, she regretted not seeing more of the world. Then Ryan invited his grandma 4. (hike) with him, and she accepted his idea 5. (cheerful). From then on, the pair travelled to 29 National Parks in total, and had many adventures along the way, 6. has even affected his way of life.

“Life for her now is a lot 7. (rich). It was the look in her eyes that impressed me a lot. "Ryan said , "I love my grandma. She has taught me how to live, I’ve learned to slow down and see the world in 8. different way. There are so many viewpoints and knowledge we can gain 9. our elders. Even if some day she does pass away, I can go back to these places to feel her spirit and feel 10. (connect) to her."

    One day about ten years ago, we were walking in the Giant Mountains, Czech Republic, when it suddenly rained heavily. We found _______ under the roof of some ski lifts (缆车) and prepared for the night. The kind-hearted elderly man who worked there, in a _______ of languages, gestures and drawing pictures, _______ that we could stay at his home that night.

Being penniless students, we eagerly, took up his _______ naturally, for we saw he was a _______ person. His wife _______ us to a big meal. The couple was quite lovely and we had a great evening, though _______ was a bit difficult. That night we slept well in a clean room.

The next day, our host _______ his long cape (斗篷) and stuff that was part of his clothes as “Guardian of the Mountains”. The children there called him that or “Krkonos” , _______ he looked like the giant in the local ________ with large figure and long flowing white hair and beard. ________ , he was quite a ________ in his village because of that. He drove us through the mountains, ________ at nice locations where we could take some photos.

We ________ him and his wife again last month and Krkonos hadn’t changed a bit! There is ________ in the mountain.

1.A.shade B.shelter C.entrance D.evidence

2.A.description B.strategy C.thought D.mixture

3.A.requested B.reminded C.signaled D.stated

4.A.answer B.comment C.promise D.offer

5.A.stubborn B.decent C.senior D.humorous

6.A.treated B.encouraged C.admitted D.greeted

7.A.cooperation B.accommodation C.communication D.connection

8.A.set aside B.threw away C.took off D.put on

9.A.though B.as C.unless D.if

10.A.tale B.saying C.report D.survey

11.A.Completely B.Generally C.Apparently D.Extremely

12.A.celebrity B.pioneer C.sponsor D.leader

13.A.hiding B.stopping C.looking D.jumping

14.A.visited B.paid C.disturbed D.praised

15.A.adventure B.secret C.magic D.freedom

    While plenty of birds-such as swallows, hawks and hummingbirds-migrate (迁徙) during the day, the majority of land birds travel at night.

Migration at night has at least three advantages. 1. Secondly, the air in the atmosphere is usually more stable than during the day. Lastly the air is cooler at night. A migrating bird produces a huge amount of heat that needs to be released. Most of the heat is lost from the    unfeathered legs. 2.

Nighttime migrators include sparrows, warblers, flycatchers, thrushes, orioles and cuckoos. Most of them don't live in vast open places.3.They aren't the best fliers, so they need the thick coverage to avoid enemies.

But flying at night is becoming more dangerous than it used to be.4.A well-lit high- rise can kill hundreds of migrating birds in a single night, an issue that has started to attract more public concern. In cities like New York, Chicago and Houston, some skyscrapers and other landmarks now have "lights out" programs during key bird migration times in the fall and spring.

5.A protein called cryptochrome, which is sensitive to blue light 9 is thought to be the key to making this happen. Cryptochromes from migratory birds have evolved to require less light and to allow their recognition of blue light to sense and respond to magnetic fields (磁场).

A. Instead, they live in the woods and other sheltered habitats.

B. Birds need the heat to keep warm and maintain a good state.

C. Birds do not have to worry about attacks from dangerous birds.

D. Only when there is enough light can they get signals to migrate.

E. Migrating birds use Earth's magnetic field to help them navigate.

F. Lights on buildings and towers confuse birds, causing them to crash.

G. The colder the air temperature is, the more quickly that heat can be released.

    As we reflect on the evolution of fitness over the centuries, and the emergence of a well- organized and growing "fitness” market and industry, it is well to ask ourselves: what have we lost, and what have we gained?

Obviously, much good has come out of these recent developments: there's widespread awareness of the importance of regular exercise, nearly every community has a gym or fitness club where people can go or pay to work out, and we understand more about how the human body works.Yet despite the many health and fitness methods, programs, and resources, the general population has never been so physically sedentary （久坐的）and out-of-shape. A recent World Health Organization report indicates that life expectancy （寿命）in the U. S. dropped for the first time since 1993. The health of modem people is declining, despite highly advanced medical technologies and the booming health and fitness industry.

How could that be? A large part of it is motivation. People are simply not as motivated to move their body and get healthy as they were in the past. We live in a society where the inability to operate one's body in a practical and effective manner is no longer an embarrassing condition. The fitness industry, no matter how good each new program claims to be, has failed to get the majority of people to value, practice, and enjoy physical exercise.

So, should we expect the answer to this dilemma to come from even more varied, or more technologically advanced programs and equipment? Or will the solution come from a different mindset, a simpler approach and practice, and overall a new culture?

1.What does the author tell us about fitness industry in paragraph 2?

A.It provides better technology.

B.It is supported by most people.

C.It brings about positive effects.

D.It costs people too much money.

2.What is the main reason why people fail to do physical exercise?

A.Not enough equipment. B.Lack of inner drive.

C.Misguided instructions. D.Embarrassing living conditions.

3.What does the author seem to agree with?

A.Change attitudes to fitness. B.Rely on standard practice.

C.Seek more potential customers. D.Turn to more advanced programs.

4.What is the best title for the text?

A.Lost in fitness B.Misunderstanding about fitness

C.Evolution of fitness D.Importance of fitness

    Coral reefs (珊瑚礁) are an integral part of sea life and sustain it by providing shelter and habitat to various organisms. They also supply and recycle nutrients as well as enable a growing fish population, along with other species, for a healthy and diverse ecosystem. However, the rise in average water temperatures due to climate change has resulted in more frequent and longtime coral bleaching (白化现象) events that damage their health, causing fish and other sea species to abandon them.

In order to restore this delicate ecosystem, scientists from the UK and Australia conducted a study that involved using loudspeakers underwater near damaged coral reefs to make them sound healthy and attract fish, potentially kick-starting the natural recovery process of coral reefs and their dependent life forms. The location for this experiment was the Great Barrier Reef in the Coral Sea, found alongside the east coast of Queensland, Australia. The site is noted to have the largest coral reef system in the world.

“Healthy coral reefs are remarkably noisy places-the crackle of snapping shrimp and the whoops and grunts of fish. Young fish concentrate on these sounds when they're looking for a place to settle,” said Steve Simpson, study co-author and a professor at the University of Exeter, UK.

By using loudspeakers to copy such sounds, parts of dead coral reefs were found to attract twice as many fish, compared to places where no sounds were played. “These returning fish, are crucial for coral reefs to function as healthy ecosystems. Boosting fish populations in this way could help to kick-start natural recovery processes, preventing the damage we're seeing on many coral reefs around the world,” said lead author, Tim Gordon.

1.What causes the phenomenon of coral bleaching?

A.Diverse species. B.Noise pollution.

C.Fishing industry. D.Climbing temperatures.

2.What approach is introduced to recover the coral reefs?

A.Removing damaged coral reefs. B.Using loudspeakers to keep fish away.

C.Building new homes for sea species. D.Playing certain sounds to appeal to fish.

3.Why are Steve Simpson's words quoted?

A.To provide some findings of the study. B.To show the progress of the experiment.

C.To explain reasons for the new approach. D.To give another solution to the problem.

4.What can we infer from the last paragraph?

A.The attempts are in vain. B.Natural recovery is impossible.

C.Initial success has been achieved. D.The coral reefs have returned to normal.