The world's first-known nursery for baby giant manta rays(蝠鲼) has been discovered hidden away in the Gulf of Mexico, the place of 70 miles off the coast of Texas, after studying decades of giant manta ray data from the area by the scientists.
Where the baby manta rays grow up has long troubled scientists, as they are rarely spotted in the four to five years it takes them to become adults, when they can often grow to more than 20ft wide.
In the study Mr Stewart and colleagues describe a reef (暗礁)---filled with mantas of all ages---where the sea floor runs down into deeper water. He said "We think they may be feeding on specific types of zooplankton(浮游生物) there, then migrating up toward the surface, where we saw them. They might be hanging around the banks because it could be a little safer than open water. We’ve seen them so rarely that we know very little about these baby manta rays. We don‘t know how far they move, or exactly what they feed on, or all of the habitats these access.”
Giant manta rays are listed as species dying out by protectors, although actual population numbers of the mysterious "gentle giant" are hard to calculate. Sightings of the closely-related reef manta, however, have dropped by 90 percent in regions of southeast Asia in the past decade, according to a study.
Fishing is considered the biggest threat to giant manta numbers, both intentional and accidental. Their gill plates(腮下肉)- the parts through which they filter(过滤) their food from seawater-are sold in China for medical purposes, while they often end up as something caught by mistake due to their huge wings.
【小题1】Where do the baby manta rays probably grow up according to the study?A.In the deep water area. |
B.On the surface of the sea water. |
C.Around the banks of channel. |
D.In the reef of the Gulf of Mexico. |
A.Manta rays can be seen on the sea surface. |
B.Manta rays prefer the open water to the banks. |
C.The scientists have known much about manta rays. |
D.Manta rays are fond of eating on the sea surface. |
A.The habitat environment becomes worse. |
B.They are overfished by people |
C.They are not very difficult to catch. |
D.People can see the reef manta much less than before. |
A.Summarize the previous paragraphs. |
B.Warn people of their wrong behaviors. |
C.Introduce some knowledge of the fish. |
D.Give examples to support his point. |
In 1985, Charlie Burrell inherited(继承)a piece of land in West Sussex, England, which is 3, 500 acres. It had been in his family for more than 200 years. As it was a failing farm, he and his wife, Isabella Tree, were all set to run a traditional farm, but soon realized the costs far outweighed the profits. The land wasn’t suitable for growing crops anymore.
So, in 2001, the couple decided to try something else—an experiment in “rewilding”, or restoring environments to their natural state. They reintroduced native species, including Tamworth pigs, Exmoor ponies, longhorn cattle, and deer. Then they took out all the fences and let the animals wander freely.
In the following years, the land went through an incredible change. The once neat fields were covered with bushes, creating habitats where new plant and animal species could grow.
Now it’s home to many different creatures, including two rare species of bats, nightingales, peregrine falcons, white storks, and even turtle doves, whose numbers have dropped by 98 percent in the UK over the last few decades!
“We were living in a biological desert. Now, ecologists are blown away all the time by just the amount of life here,”Isabella said. “It shows the potential that this kind of project has for changing trends of biodiversity decline.
What’s more, the land is now profitable! Charlie and Isabella offer multiple services there, including walking tours, safaris, photography classes, and rewilding workshops. They also sell meat to control their large animal populations, and even allow visitors to spend a night outside in the tents they set up.
What a promising outcome! This is amazing news for conservationists and shows that our planet can be returned to its natural glory, if only we let it. Now, it’s a beautiful reminder of how ecosystems can be restored by letting Mother Nature take the control.
【小题1】What did the couple do with the land?A.They planted trees on it. |
B.They raised animals on it. |
C.They restored it to its natural state. |
D.They transformed it into a traditional farm. |
A.To show the popularity of the farm. |
B.To highlight the success of the farm. |
C.To stress the difficulties she overcame. |
D.To explain the new trend in wildlife protection. |
A.Selling tents to tourists. |
B.Selling what they grow on the land. |
C.Killing animals and selling the meat. |
D.Drawing rare animals and selling the pictures. |
A.They have creative ideas. |
B.They succeed through hard labor. |
C.They are too lazy to manage a farm. |
D.They care more about money than the ecosystem. |
Saving the environment is a hot topic right now, and most companies are thinking of ways to “go green”, that is, to reduce pollution and save electricity.
How do you reduce energy use in your home?
One of the main reasons that we use so much power in our homes is to heat or cool them. “Green” houses are very well insulated(隔热的), keeping the temperature inside fixed.
A.Large buildings are “Green”. |
B.Used plastic and paper are included. |
C.The answer might be to build a “Green” house. |
D.Finally, “Green” houses are built largely from used materials. |
E.Most importantly, solar energy or wind power is clean energy. |
F.In the construction industry, this practice is also becoming popular. |
G.As a result, we can reduce the need for a lot of power to heat or cool them. |
The Children’s Climate Prize (CCP) was started by the Swedish company Telge Energi. It’s been given every year since 2016 to teens who have made “extraordinary efforts” to improve life on the planet now and in the future. Here are some of CCP finalists this year:
Reshma Kosaraju, a 15-year-old girl from Saratoga, California, the USA. She built her deep learning model by using weather information like temperature, humidity, wind speed, and how dry the soil is. Her model can predict where and when forest fires are most likely to happen. She hopes to turn her program into an app that’ll be useful to firefighters.
Fernanda Barros, a 16 year old girl from Pará, Brazil. She helped start the group Fridays For Future Amazonia (FFFA), which is working to protect Brazil’s Amazon rainforest that is seriously threatened. Fernanda says, “We have the science, we have team effort, and we won’t stop!”
Anjali Sharma, a 17-year-old girl from Melbourne, Australia. She was named a finalist for taking Australia’s Environment Minister to court in an attempt to stop a coal mine from being expanded. The case resulted in the court saying that the government had a “duty of care” to protect young people.
Lesein Mutunkei, a 17-year-old boy from Nairobi, Kenya. His project is called Trees For Goals, which encourages soccer teams to plant 11 trees for every goal scored. Already, over 1, 500 trees have been planted, and Lesein is working to spread the idea further. He’d really like to get the soccer group FIFA to back the idea.
【小题1】What is CCP intended to do?A.Improve teenagers’ school life. |
B.Strengthen teenagers’ communication. |
C.Inspire teenagers’ ideas of environmental protection. |
D.Help the developing countries in science and technology. |
A.Anjali Sharma. | B.Fernanda Barros. |
C.Lesein Mutunkei. | D.Reshma Kosaraju. |
A.She won a case to stop the expansion of a coal mine. |
B.She helped reduce the threats to Amazon rainforest. |
C.She planted many trees every year. |
D.She developed an app detecting climate. |
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