1 . The opening of California’s commercial crab season, which normally starts in November, is delayed once again to protect whales searching for their prey (猎物) along the coast.
California has been affected by a marine heat wave since May. The Blob, as this mass of warm water has become known, is squeezing cooler water preferred by whales and their prey close to shore, where fishermen set their traps. This crowding can lead to tangle (缠结) between whales and fishing equipment, endangering the animals’ lives and requiring rescue missions.
In a new study, scientists say they can now use global temperature models, commonly used in climate science, to predict up to a year in advance when hot ocean temperatures raise the risk of tangles between whales and fishing equipment.The tool analyzed in the new study, called the Habitat Compression Index, works by feeding sea-surface temperature measurements into an equation (方程式) that estimates the likelihood of whale habitat shrinking closer to shore.Regulators and fishermen agree that the new forecasting research could help them walk the tightrope between protecting whales and protecting local livelihoods (生计).
Mr Ogg, a commercial fishing boat captain, describes himself as a conservationist who doesn’t want to see whales harmed.“Fishermen have a big motivation to protect the natural environment,” he said, “because that’s where they make their living.” Previously, the challenge was adapting to changing conditions and fishing regulations on short notice, especially for smaller business owners and their crews.“One of the biggest problems we had was the unpredictability,” Mr Ogg said, “We were living from week to week then.”
Though scientists have shown the Habitat Compression Index can now forecast months in advance, state officials would probably wait to see conditions in real time before making decisions about the crab fishery, said Ryan Bartling, an environmental scientist at the California Department of Fish and Wildlife.
1. What do the whales come to shore for according to the first two paragraphs?| A．Safety. | B．Shelter. | C．Leisure. | D．Food. |
| A．To take a risk. | B．To join in an act. |
| C．To strike a balance. | D．To walk on a rope. |
| A．Supportive. | B．Indifferent. | C．Cautious. | D．Pessimistic. |
| A．How climate data gives whales room to swim |
| B．What causes the decrease in whale population |
| C．Why global temperature models are in great need |
| D．Whether to protect whales or the local livelihoods |
2 . A new study from the University of Cambridge shows how small environmental changes can have great effects on human behavior. Even the rise of skateboarding is the result of the deep relationships between humans and the climate.
“To make connections between climate and society, we often look into the past, but as we go further back, the evidence gets thinner,” said lead author Professor Büntgen. “We wanted to find a more modern example where we had lots of data to look at. That is how we began to study skateboarding.”
As was recorded, the prosperity (繁荣) of post-war America resulted in the building of more than 150,000 swimming pools in California during the 1960s. However, California suffered the greatest drought (旱灾) in the 1970s. The government’s water agencies responded by mandating strict cuts, including a ban stopping people from filling backyard swimming pools. As a result, many of these pools were empty, making them ideal playgrounds for freestyle skateboarders. Naturally, skateboarding exploded in popularity.
Büntgen said, “California used to be the center of US surf culture. The popularity and influence of surf culture was very important to the rise of skateboarding, which is why it could have only happened in California. You could have had the same drought, the same pools in somewhere like Phoenix, but since Phoenix doesn’t have a rich surf culture, professional skateboarding couldn’t have started there.”
With the rise of professional skateboarding came the industrial production of polyurethane (聚氨酯) wheels, which allowed skaters to make faster turns at higher speeds than they could with earlier steel wheels. All these factors made skateboarding more popular. Nowadays, it is a multibillion-dollar industry.
The example of California best shows that local climate change can have major effects on human society.
1. What is the finding of the new study?| A．Climate changes affect human behavior. |
| B．Popular games benefit greatly from droughts. |
| C．The environment changes people’s relationships. |
| D．Culture contributes to the industry development. |
| A．Carrying out. | B．Counting on. | C．Sticking with. | D．Getting over. |
| A．Drought. | B．Location. | C．Swimming pools. | D．Surf culture. |
| A．Society. | B．Health. | C．Education. | D．Business. |
3 . It might be strange to wear clothes made out of plastic bottles. But in fact some clothing companies are already making such clothes.
Fashion brand JUMA recently showed its newest collection at a workshop in Shanghai. Eighteen clothing items from the collection, including jump-suits, jackets, shirts and dresses, were made from recycled plastic bottles. “We realized that billions of water bottles were being thrown into landfills and oceans every year and that these bottles take hundreds of years to decompose (分解). We thought we should use them to create our clothes and help the environment,” said Alia Juma, the company’s design director.
Many other fashion companies are finding similar ways to save our planet these days. The process is rather simple. First, the plastic bottles are washed and cut into small pieces. Then they are melted and shaped into small balls. The balls are melted again to form thread. People can then use the thread to make different kinds of clothes.
According to Juma, it takes 67,000 bottles to create 1 ton of thread. This reduces carbon emissions by 4.2 tons and water use by 6.2 tons compared with the normal way of making thread. “4 bottles can make a pillowcase. 5 can make a shirt, 10 a dress and 20 a short coat,” Juma said.
Some people might have doubts about wearing something made out of plastic bottles. But according to Causeartist, a website that focuses on innovation, clothes made from plastic could be even better than nylon and polyester. Plastic thread can be made into different textures, such as cotton, silk or even wool. “The more we learn about recycled fabrics, the more we realize that they work just like other fabrics. You can get a heavier cotton feeling or a silky feeling by weaving the yarns into different textures and using different washing methods. There is actually a lot you can do with this fabric,” Juma said.
The price for the clothes in the new collection ranges from 500 to 3,000 yuan. However, Juma is optimistic that prices will fall when more companies follow the sustainability path taken by her business.
1. Why is fashion brand JUMA now making clothes from plastic bottles?| A．Because too many bottles are being thrown away. |
| B．Because the company has advanced technology. |
| C．Because people are fond of wearing such clothes. |
| D．Because recycling the bottles is good for the Earth. |
| A．Creating 1 ton of thread in the normal way brings about 4.2 tons of carbon emissions. |
| B．Making clothes from plastic bottles reduces carbon footprint and is worth the effort. |
| C．A fashion company can make as many as 300 short coats using only 1 ton of thread. |
| D．The new way of making thread from plastic bottles is not harmful to the environment. |
| A．Doubtful. | B．Critical. | C．Supportive. | D．Disapproving. |
| A．To advertise fashion brand JUMA. | B．To introduce a new type of clothes. |
| C．To praise fashion companies’ creativity. | D．To express concern about the Earth. |
1. How was the weather early in the morning?
| A．Sunny. | B．Cloudy. | C．Rainy. |
| A．Disappointed. | B．Ambiguous. | C．Understanding. |
5 . Need to get rid of old clothes? You’re not alone: With fast fashion, it’s easier than ever to follow trends. But cheap clothes aren’t made to last, most of which often end up in a landfill (垃圾填埋场). Take US as an example: per person generates an average of 82 pounds of such waste every year, with 85 per cent of it going to landfills even though 95 per cent can be reused.
Donating is a popular alternative — but know that only about 10 to 20 per cent of donated clothing gets sold at thrift shops (廉价旧货店). While all but five per cent of donated clothes are resold for reuse or recycling, it’s impossible to know exactly how much ultimately becomes trash.
The best way to ensure good, usable clothing doesn’t become waste is to increase the chances it ends up with someone who wants it. First, don’t wait too long if you choose to donate clothing to an organization, big or small. The sooner you donate your unwanted items, the more demand there is for them. Wherever you donate, ensure clothes are clean and dry. If it’s damaged or stained, don’t send it to thrift shops. They don’t have the capacity to do repairs and it just creates a financial burden in addition to the eco-burden, and defeats the purpose of the charitable action.
Clothes that are stained or damaged beyond repair will likely never be re-worn but can still be diverted (使转向) from landfills. You can send your clothes directly to recycling companies, like through Retold Recycling or municipal programmes. Old clothes can be downcycled into other items like wipers for car washes, and even generated into new textiles (织品).
Recycling is better than landfilling. It might take time to do a little research to find the right organization that can actually use the items you’re looking to give away. But it’s more rewarding than throwing everything in a big garbage bag, dumping it into a bin, and hoping for the best.
1. What can be learnt about fast fashion?| A．It has reduced the eco-burden. |
| B．It has caused clothing waste. |
| C．It has lost its appeal in the US. |
| D．It has led to a rise in landfills. |
| A．To show the seriousness of the clothing waste. |
| B．To criticize the spending habits of Americans. |
| C．To push for tougher laws against fast fashion. |
| D．To offer practical advice on managing landfills. |
| A．Make them into new textiles. |
| B．Put as many into landfills as possible. |
| C．Downcycle them into wipers. |
| D．Donate them to where they are needed. |
| A．Critical. | B．Indifferent. | C．Supportive. | D．Unclear. |
| A．Rainy. | B．Sunny. | C．Windy. |
7 . In the animal kingdom, killer whales (虎鲸) are social stars: they travel in varied family groups, care for grandchildren, and even imitate human speech. Now, scientists are adding one more behavior to the list: forming fast friendships. A new study shows killer whales can rival animals such as chimpanzees and macaques (a kind of monkey), and even humans when it comes to the kind of “social touch” that indicates strong bonds.
Some ocean animals maintain social structures — including male dolphins that learn the “names” of their close allies (盟友). But there is little data about wild killer whales. That’s where drone (无人机) technology came in. Michael Weiss, a behavioral ecologist, teamed up with his colleagues to launch drones, flying them 30 to 120 meters above a group of killer whales. That was high enough not to trouble the whales, marking the first time drones have been used to study friendly physical contact in whales.
The researchers recorded over 800 instances of physical contact between individuals. Those included hugs, back-to-back and nose-to-nose touches between pairs of whales. Other whales playfully threw young whales into the air, letting them fall into the water. Besides, the drone images revealed clear preferences among individuals, usually for one “best friend” of the same sex and age. Take J49 and J51 — two distantly related young males aged 9 and 6 — for instance. “Every time you see a group of whales, those two are right there interacting with each other,” Weiss says.
The young led most of these interactions, rather than the older females or males. Older males in particular were less important. “The young individuals really seem to be the glue holding the groups together,” Weiss says. As individuals age, this gradual loss of “centrality” is known in many social mammals, including humans. That finding is “especially appealing” to Stacey Tecot, who wasn’t involved in the study. “Scientists have long observed this social aging trend in animals, but there are still many unanswered questions,” she says. That’s certainly on the researchers’ radar. “We’re already gathering new data, with more advanced equipment,” says Weiss.
1. What does the underlined word “rival” in Paragraph 1 probably mean?| A．Benefit from. | B．Be equal to. | C．Depend on. | D．Be fond of. |
| A．The research method. | B．The variety of species. |
| C．The size of the research team. | D．The time spent on the research. |
| A．They have a stable friendship. | B．Their interactions are more complicated. |
| C．Their communicating ways change frequently. | D．They prefer playing with young female whales. |
| A．More researchers will be involved in the study. |
| B．Other scientists take a negative attitude to the research. |
| C．Researchers will collect more data to study killer whales. |
| D．Researchers will uncover the social aging trend in animals soon. |
8 . The world’s forests may hold more secrets than previously thought: a new global estimate of tree biodiversity suggests that there are about 9,200 tree species remaining undocumented. Most are likely in the tropics, according to the new research.
The new research drew on the efforts of hundreds of contributors, who have categorized trees in two huge data sets: One, the Global Forest Biodiversity Initiative, records every species found in extensively documented forest plots worldwide. The other, TREECHANGE, puts together sightings of individual species. Together they suggest there are approximately 64,100 recorded tree species on the planet — up from previous estimates of around 60,000.
The researchers reached their estimate of an additional 9,200 yet undocumented species on the basis of the number of rare ones already in the databases. Most unknown species are likely to be defined as rare, found in limited numbers in small geographical areas, says the quantitative forest ecologist Jingjing Liang. The team’s result is “a rather conservative estimate,” Liang says, “because scientists know less about the preponderance of uncommon trees in places such as the Amazon, where out-of-the-way spots could host pockets of unusual species found nowhere else.” “If we can focus the resources on those rain forests in the Amazon,” Liang adds, “then we would be able to estimate it with higher confidence.”
Silman, a conservation biologist, who was not involved in the new study agrees that the study result is likely an underestimate. His and his colleagues’ local surveys suggest there are at least 3,000 and possibly more than 6,000 unknown tree species in the Amazon basin alone. Tree species often get grouped together based on appearance, he notes, so new genetic analysis techniques will likely lead to the discovery of even more biodiversity. Sliman wonders how many species will go extinct before scientists describe them. “How many are already known to native peoples in the Amazon — or were known to peoples or cultures who have themselves been made extinct through colonization, disease, or absorption? How many “species” already have dried samples sitting in a cabinet?” he says.
Searching for the new species will inform not only conservation but the basic evolutionary science of how and why species diversify and die out, Silman says. “Just the fact that there are thousands of species of something as common as trees out there that are still left to be discovered,” he adds, “I find pretty inspirational.”
1. What is the finding of the new research?| A．About nine thousand new tree species have been identified. |
| B．Thousands of tree species remain unknown to science. |
| C．Maintaining tree diversity has become a global challenge. |
| D．Human activities have led to the reduced number of trees. |
| A．The researchers adopted quality method to analyze data. |
| B．The researchers did extensive field study in out-of-the-way spots. |
| C．Inferring from the existing dada is the main research method. |
| D．Doing surveys and interviews is the main research method. |
| A．majority | B．evolution | C．cultivation | D．capability |
| A．genetic analysis technique failed to produce accurate information |
| B．trees of similar sizes in the Amazon basin are grouped together |
| C．too many rare trees were made into dried samples before being documented |
| D．the local peoples or the local cultures are not fully aware of the tree species. |
1. What can we say about the weather on Sunday?
| A．It was fine. | B．It was hot. | C．It was changeable. |
| A．It’s beyond their expectations. |
| B．It’s a common phenomenon. |
| C．It’s caused by climate change. |
10 . Third graders from Wolfsville Elementary School spent Monday afternoon getting their hands dirty and their shoes wet during an informative trout release (鳟鱼放生).
The trout, which the students had been
Wolfsville Elementary has been doing a trout release
Through the partnership, students learn various
McKinna Hidalgo, a third grader at Wolfsville, said she
The favorite part for Hidalgo’s classmate Macie Lader, however, was getting to go into the creek. Her socks and shoes were
| A．hiding | B．raising | C．waiting | D．training |
| A．usually | B．probably | C．nearly | D．finally |
| A．transported | B．followed | C．changed | D．saved |
| A．made up for | B．got along with | C．waved goodbye to | D．took advantage of |
| A．one | B．next | C．every | D．another |
| A．program | B．park | C．team | D．tour |
| A．play with | B．care for | C．clean | D．eat |
| A．courses | B．tips | C．skills | D．topics |
| A．fear | B．learn | C．doubt | D．show |
| A．nobody | B．nothing | C．somebody | D．something |
| A．hated | B．forgot | C．loved | D．remembered |
| A．fly | B．swim | C．run | D．walk |
| A．eggs | B．fishes | C．friends | D．strangers |
| A．old | B．wet | C．lost | D．clean |
| A．gloves | B．glasses | C．shoes | D．shorts |
