1 . 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。

In 1976, Diego was one of the only 15 Hood Island tortoises     1     (know) to be alive. So the Charles Darwin Research Station (CDRS) began a program to raise their     2     (number).

Several Hood Island tortoises were brought to     3     special enclosed area on Santa Cruz island,     4     young tortoises could be raised and cared for in a protected area. At the time, Diego had been living in a zoo in California for about 30 years. When scientists realized he was a Hood Island tortoise, he was returned to take part     5     the program. For over 40 years, the program created young tortoises, which were released on Española island.

The program turned out to be a huge success, and Diego     6     (play) a large part in the positive results. Now there are     7     (near) 2,000 Hood Island tortoises alive. Diego     8     (believe) to be responsible for about 40% of them. Now scientists aren’t so     9     (worry) that the Hood Island tortoises might be wiped out. Diego and 14 other tortoises have now been returned to Española, where they’ve joined the other tortoises     10     (live) in the wild.

2 . The world’s coral reefs do more for the planet than provide underwater beauty. They protect shorelines from the effects of hurricanes. An estimated 500 million people earn their livelihood from the fishing stocks and tourism opportunities reefs provide. The tiny animals that give rise to reefs are even offering hope for new drugs to treat cancer and other diseases.

Despite their importance, warming waters, pollution, ocean acidification, overfishing, and physical destruction are killing coral reefs around the world. So now scientists around the world are looking for all kinds of ways to protect and maybe even revive(复苏) corals. In the Bahamas, Ross Cunning, a research biologist at Chicago’s Shedd Aquarium, is focusing on corals with genes that could make them natural candidates for restoration projects. He recently published a study of two Bahamian reefs, one that seemed to survive an intense 2015 heat wave, and one that didn’t.“It sets the stage to find out which genes are responsible for thermal tolerance,” says Cunning, adding that he hopes discovering those genes will help scientists one day breed more heat-tolerant coral.

In Massachusetts, Cohen’s research has found two key elements that seem to protect corals. The first: internal(内部的) waves beneath the ocean’s surface that bring cooler currents to heat-struck corals, essentially air-conditioning them as temperatures rise. The second: adaptation, a quality that corals found in Palau’s warm lagoons(环礁湖) seem to display.On average, these lagoons submerge(淹没) coral in water that is two degrees Celsius warmer than the water outside the lagoons. “We think the fact that they can deal with these higher temperatures is built into their genetics and allows them to deal with the heat waves.”

She’s also found evidence of corals evolving more quickly in the past two decades to withstand rapidly warming temperatures. The big question scientists are now enquiring into, says Cohen, is whether there’s a cap on how much more heat corals can adapt to. Cohen calls these regions with heat-adapted corals as “super reefs,” and like Friendlander, advocates for using marine reserves to protect them.

1. What is the first paragraph mainly about?

A．The protection for coral reefs

B．The great value of coral reefs.

C．The benefits for tourism from coral reefs.

D．The relationship between animals and coral reefs.

2. What can be inferred from Cunning’s coral research?

A．Cooling down the waters is the key to their success.

B．Some corals have been genetically improved successfully.

C．He expects to identify the genes of the heat-tolerant corals.

D．Some corals that survived 2015 heat wave surprised people.

3. What is the focus of the study to save corals according to Cohen?

A．How corals survive in the warm lagoons.

B．What are the key elements to protect corals.

C．How they can use natural reserves to protect corals.

D．What is the high temperature limit of the surviving corals.

4. Which section is the text probably taken from?

A．Science.

B．Environment.

C．Animal.

D．Climate.

3 . Twenty years ago, I became involved in pet therapy (疗法) work with our dog J.J. After J.J. passed away, we ____ another young dog, whom we named Angel. As she ____ and went through training, we realized that she would be a good therapy dog.

Angel is ten now and ____ every week. She visits two hospitals, a day care center and a library. At the library, dogs lie on the floor, and kids ____ a book to read to a dog. After they_____, they get a trading card with the dog’s picture and history. Angel has also ____ at a children’s special needs camp. She is so _____ that everywhere we go people recognize her, _____ the kids she has worked with.

We have ____ some very special things through our pet therapy work. We used to pay a ____to a woman who was completely paralyzed (瘫痪) on her right side from a stroke. One day, my husband, Jack, asked the_____if she wanted to give Angel a treat.

She_______, and Jack carefully placed the treat in her right hand. Angel_____ took the treat. Then the woman_______her right hand and started ______Angel. Her friend in the room looked ______ and said, “ She hasn’t been able to move that_______since she had her stroke!” After that, every time she lifted her left hand to   ______us, we’d tell her she had to use her right hand, and she would.

When Angel visits the hospital, she also performs_______ for the patients, such as rolling over, shaking and balancing treats on her nose. Once she starts her performance, she won’t stop________Jack claps his hands.

1.

A．abandoned

B．adopted

C．examined

D．cured

2.

A．trembled

B．returned

C．matured

D．hesitated

3.

A．works

B．barks

C．wanders

D．plays

4.

A．buy

B．pack

C．pick

D．review

5.

A．fall

B．fail

C．forget

D．finish

6.

A．helped out

B．stood up

C．settled down

D．shown off

7.

A．calm

B．clever

C．proud

D．popular

8.

A．especially

B．rarely

C．equally

D．slightly

9.

A．advertised

B．witnessed

C．admitted

D．predicted

10.

A．rent

B．salary

C．reward

D．visit

11.

A．kid

B．nurse

C．woman

D．doctor

12.

A．continued

B．nodded

C．slept

D．apologized

13.

A．urgently

B．secretly

C．frequently

D．gently

14.

A．raised

B．touched

C．waved

D．covered

15.

A．walking

B．training

C．petting

D．striking

16.

A．worried

B．astonished

C．discouraged

D．determined

17.

A．foot

B．finger

C．leg

D．hand

18.

A．offend

B．treat

C．praise

D．greet

19.

A．experiments

B．functions

C．tricks

D．duties

20.

A．until

B．so

C．though

D．after

4 . An elephant was rescued in southern India after falling into a well. It ______ more than 12 hours, but the elephant in Tamil Nadu has been rescued after plunging into a well estimated at ______ 50-feet deep.

The elephant had ______ into the village of Dharmapuri from a nearby forest when it fell into the well. The well did not have a ______ and had been hidden by bushes.

Locals from the village alerted authorities about the ______ animal early on Thursday. They dropped banana leaves down the well for the elephant to ______, as rescuers worked throughout the night to ______ it.

Forest officials brought in a crane (吊车) to ______ the elephant. Footage of the rescue showed the elephant strapped in (系住) by belts and hanging upside down as the crane lifted it to ______. Doctors helped rescuers sedate (给……服镇静剂) the animal after it ______ pipes they were using to pump water out of the well.

The area where the rescue happened has had some ______ saving trapped elephants. Two other elephants have fallen down wells in the past year. ______ wells and ditches have caused a ______ to the animals. The animals need ______ land to survive as they look for food and water.

Open wells and ditches (壕沟) in elephant migratory ______ are huge problems for these animals. Since they are long ______ creatures, they migrate to long distances for food and water.

Least we can do is ______ such wells or keep safety wall. Imagine it was a 50 feet deep well. Authorities ______ the elephant for roughly three hours after the rescue. It was found to be ______ and active.

______ are also given to the elephant for her will.

1.

A．cost

B．spent

C．took

D．brought

2.

A．exactly

B．frequently

C．obviously

D．roughly

3.

A．run

B．wandered

C．slid

D．stolen

4.

A．barrier

B．sign

C．way

D．top

5.

A．hidden

B．fallen

C．excited

D．trapped

6.

A．eat

B．drink

C．stay

D．feed

7.

A．protect

B．free

C．warm

D．calm

8.

A．move off

B．rise up

C．get back

D．give out

9.

A．suspect

B．safety

C．condition

D．freedom

10.

A．scared

B．sucked

C．blew

D．attacked

11.

A．faults

B．privileges

C．experience

D．difficulty

12.

A．Uncovered

B．Unfolded

C．Unrelated

D．Newly-built

13.

A．chance

B．threat

C．extinction

D．practice

14.

A．expansive

B．effective

C．impressive

D．progressive

15.

A．groups

B．fields

C．reserves

D．routes

16.

A．reaching

B．extending

C．ranging

D．marching

17.

A．destroy

B．construct

C．repair

D．cover

18.

A．fed

B．operated

C．monitored

D．adopted

19.

A．wounded

B．healthy

C．hungry

D．thirsty

20.

A．Credits

B．Fruits

C．Benefits

D．Interests

5 . Denmark is the largest producer of oil and gas in the European Union, which does not include Norway and the UK, two countries that are larger producers. In 2016, Denmark produced 145,674 barrels of oil per day. That’s why the Danish government’s decision to end all oil and gas exploration in the North Sea is such a big deal.

Denmark will stop extracting (提炼) fossil fuels from the 55 existing oil and gas platforms in the sea at the end of 2050. The future of these offshore oil and gas rigs (钻塔) was uncertain after Denmark agreed to a very ambitious climate target in 2019, to reduce greenhouse emissions by 70 percent in 2030 and to being completely climate neutral 20 years later.

The Danish government estimated that this new policy will amount to $2.147 billion in lost revenue (财政收入). It is the oil and gas industries in the North Sea that made Denmark one of the richest countries as well as one of the happiest. But, for last 10 years, the country has focused on clean energy including offshore wind farms.

Denmark is not the first country to end oil and gas exploration, that title goes to France, but it is the first major fossil fuel producing one and this decision is being applauded by environmental groups.

“This is what climate leadership looks like,” Mel Evans, a climate campaigner for Greenpeace UK, said. “All eyes will be on the UK next year as we host crucial climate talks, so our prime minister should take note.”

While it is unknown if the UK will follow, Denmark’s decision is still a huge victory in the fight against climate change and will go a long way to meeting the 2015 Paris Agreement to keep global warming below 2 degrees Celsius. Hopefully more countries will follow.

1. What has Danmark paid more attention to in the recent decade?

A．Gas and oil.

B．Happiness.

C．Agricultural farms.

D．Clean energy.

2. What can we infer from what Mel Evans said?

A．He participated in climate talks.	B．He thinks highly of Denmark’s decision.
C．The UK is bound to follow Denmark’s example.	D．Climate talks will influence the future of Britain.

3. What’s the author’s attitude to Denmark’s decision to end all oil exploration?

A．Favorable.

B．Disapproving.

C．Skeptical.

D．Unclear.

4. What’s the suitable title for the text?

A．Oil and Gas Exploration Benefits Denmark	B．Denmark’s New Decision Surprises the World
C．Denmark Produces Oil and Gas in Europe Most	D．Denmark Will End New Exploration in North Sea

6 . 听下面一段较长对话，回答以下小题。
1. Why does the woman decide to do something special?

A．To spend a meaningful weekend.

B．To celebrate Earth Day this year.

C．To save some recycling materials.

2. What does the woman plan to do?

A．Throw away old materials.

B．Start a shopping campaign.

C．Make useful items for daily use.

3. When will the man probably arrive at the entrance?

A．At 7:50 am.

B．At 8:00 am.

C．At 8:10 am.

7 . An ancient chemical process enabled Earth to become a fertile place packed with life. Now researchers are imitating this process in an attempt to slow global warming. Every plant, animal, and person owes their life to a series of chemical reactions: photosynthesis, which turns water and carbon dioxide into food using sunlight. As benefit receivers of photosynthesis, humans depend on plants in a sort of carbon seesaw (跷跷板). Plants take in CO₂ and release O₂. We do the opposite, taking in O₂ and releasing CO₂.

This seesaw is part of the much broader carbon cycle that has affected the radiation balance of our planet. Cutting down plenty of forests and the burning of carbon-based fossil (化石) fuels cause the levels of CO₂, a major greenhouse gas, to rise. And plants on Earth along with other natural parts of the carbon cycle can’t restore the balance on their own.

But what if we could copy what plants do to seize some of that extra CO₂ to make fuels constantly, instead of relying so heavily on fossilized carbon?“ Artificial photosynthesis is a really attractive approach,” says Jillian Dempsey, a chemist at the University of North Carolina, Chapel Hill. “You’re able to store the energy of the sun in the bonds of molecules (分子).”

A hydrogen device with 12.6% efficiency that Agbo recently built was less than one inch across. For artificial photosynthesis to become practical, it needs to produce enough fuels to compete with the world’s existing energy supply of relatively inexpensive and abundant fossil fuels. It will take a lot of time and money before artificial photosynthesis can compete with fossil fuels. But the needed expenses won’t come close to the social cost of climate change. A recent survey of more than 2,000 economists projected the economic damages from climate change will reach $1.7 trillion per year by 2025 and roughly $30 trillion per year by 2075. Artificial photosynthesis could inch us back toward a better balance on the planet’s carbon seesaw.

1. What is researchers’ purpose to copy photosynthesis?

A．To release some of the extra CO₂.

B．To reduce the cost of using fossil fuels.

C．To reduce the speed of global warming.

D．To turn water and carbon dioxide into artificial sunlight.

2. What can we infer from paragraph 2?

A．Plants can turn carbon dioxide into food using sunlight.

B．Carbon seesaw is part of the less broader carbon cycle.

C．Avoiding the burning of fossil fuels can help protect the environment.

D．Carbon seesaw makes a difference to the radiation balance of the earth.

3. What is one disadvantage of the artificial photosynthesis?

A．Lack of mass production.

B．Its negative effect on the environment.

C．Disturbing the balance of the planet’s carbon seesaw.

D．Inability to store the energy of the sun in the bonds of molecules.

4. What is the best title for the text?

A．How Does the Artificial Device Works?

B．Wide Application of Artificial Device Is a Long Way to Run

C．Copying Nature to Fight Climate Change

D．Copying Photosynthesis to Change Society

8 . On May 29, 1953, New Zealander Edmund Hillary and Sherpa guide Tenzing Norgay became the first people to climb to the top of the world’s tallest mountain. The following day, as the weary expedition prepared for climbing down, leader John Hunt ordered his men to dump their extra equipment. The downward climb would be exhausting. The men could not have known that Mount Everest’s trash problem had begun.

Trash on Mount Everest ?

Yes! A lot of it. About 50 tons of garbage litters the slopes. Since 1953, thousands of people have climbed the world’s tallest mountain. Many dump their trash to lighten the load. None of it decomposes(分解) in the icy conditions.

A Trail of Corpses

At least 250 people have died climbing Mount Everest. Most bodies remain on the mountain, too heavy and large for other climbers to bring down. Frozen solid and still in their climbing clothes, the bodies serve as horrible trail markers. More deaths keep coming. Mount Everest’s deadliest day to date happened in April 2014, when 16 Nepali Sherpa guides died in an avalanche of ice and snow.

Garbage Crackdown

The government of Nepal now requires each expedition to pay a deposit of $4,000 before heading up the mountain. If climbers want their money back, they have to prove they brought down all of their own garbage, including their own bodily waste. That’s right--climbers have to carry their own poop. This year the government added another rule: In addition to their own trash, climbers must return with an extra 18 pounds of garbage.

Trash to Treasure

Some artists in Nepal are turning Everest’s trash into art. Fifteen artists created sculptures from a wide range of Mount Everest trash. By using the trash creatively, the artists hope to raise funds as well as awareness of the problem. Profits from art sold go back to an organization that has collected over 10 tons of garbage from the mountain.

1. Who began to litter trash there at first ?

A．16 Nepali Sherpa guides.	B．Edmund Hillary, Tenzing Norgay and John Hunt.
C．The government of Nepal.	D．Some artists in Nepal.

2. How many persons have died there when climbing this mountain ?

A．250

B．more than 250

C．less than 250

D．16

3. Which of the following words has the closest meaning to the underlined word “weary” ?

A．tiring.

B．frustrating.

C．interesting.

D．surprising.

4. We can predict that _______________in future.

A．both the corpses and garbage will increase.

B．both the corpses and garbage will decrease.

C．the corpses will increase while the garbage will decrease.

D．the corpses will decrease while the garbage will increase.

9 . 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。

During COVID-19 lockdown, my husband, Peter and I needed something     1     (brighten) up our day. Peter found some flower pots,     2     (hope) flowers would attract some birds.

At a flower shop, I saw lavender flowers (薰衣草花) matched beautifully with some yellow flowers. The saleswoman said,” Hummingbirds (蜂鸟) love those flowers.” I liked the idea of small     3     (visitor) flying around flowers, so we brought both flowers home and put them on     4     balcony.

Every day, we’d look out onto the balcony and enjoy the vivid     5     (arrange). The best part was the hummingbirds’ showing up. They brought joy that we     6     (great) needed. Being apart     7     family, I was concerned about     8     would happen if we were infected with the virus.

One morning, I noticed that a hummingbird’s tiny head     9     (stick) between two boards and another was trying to free it by pulling its tail. I ran to fetch Peter, but when we returned, the birds were     10     (go)! I let out a sigh of relief, recalling the saying “He who endures (忍耐) to the end shall be saved.” Those hummingbirds didn’t give up. Why should I?

10 . 听下面一段独白，回答以下小题。
1. What did the girls learn during the hike?

A．How to climb rocks.

B．How to read a map.

C．How to make friends.

2. What does Girls on Rock consider when choosing participants?

A．Their academic performance.

B．Their former outdoor experiences.

C．Their intention of participating in the programme.

3. What is the aim of Girls on Rock?

A．To offer girls more opportunities.

B．To help girls challenge themselves.

C．To encourage girls to study hard.