As awareness of the human impact on the environment
In many cases, your choices will depend
Save water. Every drop of tap water you use consumes energy. It might just be water, but a lot of fossil fuel (矿物燃料) is consumed in processing it. You can turn the tap off while
Wear the right clothing. Your choice of clothing can make a big
1. Why does the woman grow her own garden?
A.To kill time. |
B.To develop a new hobby. |
C.To eat healthy food. |
A.Fruits. | B.Vegetables. | C.Grains. |
A.Picking strawberries. | B.Watering plants. | C.Eating vegetables. |
3 . Fungi (真菌) play an important role in ecosystems, are a source of food, and make key contributions to the world of medicine.
An estimated two million fungal species — more than 90% of all fungi — have yet to be described by science, according to a science reporter.
So, next time you add mushrooms to your dinner, take a painkiller for a headache, or go for a walk through the woods, remember to thank the living things that made it all possible — fungi.
A.Are mushrooms a type of fungus? |
B.So, why do we know so little about them? |
C.Wetlands are important because they provide food and shelter for wildlife. |
D.The fact that we know so little about fungi leads us to misunderstand them. |
E.“Fungi are really the behind-the-scenes team doing all the work,” adds Dr Ainsworth. |
F.But there is a whole host of fungi that we cannot grow in the lab. |
G.In the UK, there are around 25,000 species of fungi — five or six times more than plants. |
4 . Two and a half months before the 2024 Atlantic hurricane season officially begins, and almost six months before it enters its peak (高峰), weathermen are already predicting (预测) that it could be particularly active.
Officially, hurricane season begins from June 1 and runs through November. One reason is that sea surface temperatures in the tropical (热带的) Atlantic are already at record highs.
Meanwhile, another significant potential factor in this year’s hurricane season is taking shape thousands of miles away in the Pacific. Over periods ranging from three to seven years, the waters of the central and eastern tropical Pacific Ocean warm and cool in turn as a result of a repeating climate pattern called the El Niño-Southern Oscillation (ENSO). El Niño makes Atlantic hurricanes less likely to form but La Niña does.
During the 2023 season, ENSO was in an El Niño period. However, by the time the 2024 season starts, it will have changed into a “neutral(中立)” period, but that by the peak months, it is likely to have changed fully into a La Niña.
“How quickly that change occurs can affect everything as well,” says DaSilva, a lead hurricane weatherman. “There’s a lag time. So, while we expect the change to occur in mid-summer, it may not be until late summer or fall where we really see those effects across the Atlantic basin.” As a result, he says, this year’s hurricane season could remain particularly active deep into November.
Of course, no report can predict when individual storms will come or the paths they will take, but DaSilva warns that those who live in areas likely to suffer hurricanes, especially around the Caribbean and Gulf of Mexico, should prepare. “If a tropical storm system comes into this area, it could rapidly strengthen, potentially close to land,” he also warns. “And that’s why people need to be careful and have their hurricane plans ready. Because any system with these kinds of conditions can explode very quickly. That’s what we’re concerned about.”
1. What is the function of Paragraph 1?A.To give advice. | B.To explain the season. |
C.To introduce the topic. | D.To inform a weather report. |
A.The hurricane season has entered its peak. |
B.A repeating climate has changed weather in summer. |
C.The sea surface temperatures are the highest of all time. |
D.El Niño makes Atlantic hurricanes more likely to form. |
A.A time delay. | B.A time in a zone. |
C.A time waste. | D.A time in advance. |
A.It can be exactly predicted ahead of time. |
B.People needn’t worry about hurricane season. |
C.It may be eventually controlled by weathermen. |
D.People can’t be more careful about hurricane season. |
5 . 4 Reasons Why Wild Animals Are So Important
As we know, the earth gives us food, medicines and materials, often through wild animals. These wild animals are important to our existence. Sadly, they are becoming extinct at an alarming rate. We need to change this loss of nature and create a future where wildlife and people thrive (蓬勃发展) again.
Wild animals keep balance in ecosystems.
Diversity (多样性) means healthier ecosystems and healthier wild animals.
When there is a wildlife issue, you’ll often hear the term biodiversity, which refers to the number of species in an ecosystem.
All of the food that we eat comes from an animal or plant. Living without various food sources causes our nutrition (营养) to suffer. Protecting wildlife and its natural habitats strengthens food safety for humans around the world.
Wildlife helps medical research.
Wild animals have helped us find important medicines that help with many diseases.
A.All living things are interconnected. |
B.Healthy ecosystems mean a lot of diversity. |
C.Or we will lose these animals to future generations. |
D.People worldwide depend on wildlife for their snack. |
E.Wildlife provides important nutrients for the human race. |
F.The human race has always turned to nature for medicine. |
G.We should notice the influence caused by wildlife on culture. |
6 . The African continent has seen its average monthly temperatures rise by 0.5 — 2 degrees Celsius over the past century, with up to another two degrees of warming projected for the next 100 years. The changing climate will break historical rainfall patterns, but which of these, temperature or rainfall, will have the most impact on a species, like rhinos (犀牛) ?
“Generally speaking, most, if not all, species will. in one way or another, be affected by the changing climate,” says lead author Hlelowenkhosi S. Mamba, who completed this research. It is therefore important to catch tendency (趋势) and model futures for some of the world’s weakest species. It can help prepare to reduce climate change’s effects, hence reducing global biodiversity losses.
To understand how our changing climate will affect rhino populations, Mamba and Timothy Randhir, professor of environmental protection, focused their efforts on the five large national parks that are home to most of the rhinos.
Mamba and Randhir then modeled two scenes for each of the parks: the IPCC’s high-emissions (排放) scenes and a more moderate (适度的) emissions scenes. They projected temperature and rainfall for each of the scenes out to 2055 and 2085 to arrive at a possibility that each park would remain suitable for the rhinos.
Nearly every park will become increasingly drier as emissions increase. This is all very bad news for the rhinos, because the team also found that, though the change in rainfall will not be most suitable for the rhinos, the changes in temperature are greater than what the species can bear.
“The temperature conditions in all study parks will become increasingly unsuitable for the species. And under the high-emissions scenes, the possibility of occurrence of the species falls to zero by 2085,” the authors write.
But to be forewarned is to be prepared in advance. “We propose that park managers think now about increasing water supplies, tree cover, watching for stress and planning to allow rhinos to move from one place to another place as the world warms,” says Randhir.
1. Why does the author ask a question in Paragraph 1?A.To show an evidence. | B.To stress the main idea. |
C.To lead in the topic. | D.To offer some background. |
A.The means of the research. | B.The content of the research. |
C.The process of the research. | D.The significance of the research. |
A.Changes in rainfall have a greater effect on rhinos. | B.Each park will have no rhinos in 2055. |
C.Changes in temperature affect rhinos more. | D.Each park will be warmer by 4. 5℃ in 2085. |
A.Rhinos are better suited to natural growth. | B.Rhinos are in great danger in the five parks. |
C.Park managers should plan to protect rhinos. | D.Park managers must pay more attention to nature. |
7 . As the sweet smell of pears and apples spreads in the air, drawing a stream of visitors to the orchard (果园) in Karamay’s Baijiantan district, an elderly man is seen doing the rounds of it on an electric bike. Sometimes, he stops to water the trees or prune (修剪) the grass, determined to ensure every single tree reaches its full
The
“In
Wang’s continuous effort over the decades
“I am glad to have made a small contribution to protect the environment
A.extinction | B.function | C.devotion | D.potential |
A.capacity | B.division | C.location | D.front |
A.rubber | B.dust | C.mixture | D.garbage |
A.snowy | B.windy | C.rainy | D.sunny |
A.hurt | B.blur | C.explode | D.calculate |
A.mercifully | B.violently | C.desperately | D.guiltily |
A.dignity | B.determination | C.admission | D.foundation |
A.gathered | B.extended | C.followed | D.sponsored |
A.separated | B.transported | C.transformed | D.channelled |
A.ridiculous | B.natural | C.typical | D.occasional |
A.election | B.virtue | C.entertainment | D.education |
A.beauty | B.beliefs | C.difficulties | D.complaints |
A.successfully | B.attractively | C.blindly | D.effortlessly |
A.entrusts | B.embarrasses | C.motivates | D.persuades |
A.fallen away | B.passed down | C.tested out | D.withdrawn from |
8 . In May 1869, John Wesley Powell, a former Union Army major who had lost most of his right
Three of the boats were made of oak, more suitable for cruising lakes than busting through rapids (急流). None of the men were
Though Powell had boats custom-made for the
Much of the journey was spent
Beauty is in the living of life, in looking beyond the challenges to the
A.leg | B.arm | C.ear | D.finger |
A.explorers | B.soldiers | C.heroes | D.boatmen |
A.rude | B.greedy | C.experienced | D.honest |
A.Still | B.Otherwise | C.Thus | D.And |
A.remote | B.quiet | C.unknown | D.vast |
A.trip | B.journey | C.travel | D.tour |
A.live | B.hunt | C.hide | D.survive |
A.nearly | B.already | C.mostly | D.never |
A.making | B.handling | C.rowing | D.repairing |
A.talk | B.discuss | C.fight | D.negotiate |
A.shallow | B.freezing | C.violent | D.polluted |
A.pulled in | B.pulled up | C.pulled on | D.pulled at |
A.adapted to | B.stuck to | C.saw to | D.got to |
A.reliable | B.priceless | C.measurable | D.considerable |
A.strength | B.attempt | C.position | D.wonder |
Balancing Trees and CO2
Tree planting used to be regarded as an effective means of reducing climate change. Perhaps it’s time for us to rethink this practice. Trees pull CO2 from the air. This effectively removes CO2 from the atmosphere. But trees only hold onto CO2 as long as they’re alive. Once they die, trees decay (腐烂) and release that CO2 back into the atmosphere.
Recent studies have found that trees around the world are growing faster than ever. The rise of CO2, mainly due to burning fossil fuels, is probably driving that rapid growth, said Roel Brienen, a forest ecologist at the University of Leeds, UK. High levels of CO2 are increasing temperatures, which in turn speeds tree growth in those areas, he added.
The faster trees grow, the faster they store carbon. It seems like good news. However, it is known that fast-growing tree species, in general, live shorter lives than their slow-growing relatives.
In order to see whether the growth-lifespan trade-off (生长与寿命之间的权衡) is a universal phenomenon, Brienen and his colleagues analyzed over 210,000 individual tree ring records of 110 tree species from more than 79,000 sites worldwide. They found that, in almost all habitats and all sites, faster-growing tree species died younger than slow-growing species, and even within a species, the trade-off between growth and life span held strong.
The team also created a computer program that modeled a forest and tweaked (微量调整) the growth of the trees in this model. Early on, it showed that “the forest could hold more carbon as the trees grew faster”, Brienen reported. But after 20 years, these trees started dying and losing this extra carbon again. “We must understand that the only solution to bringing down CO2 levels is to stop emitting (排放) it into the atmosphere,” said Brienen.
1. What does “this practice” in Para.1 refer to?2. Why are trees around the world growing faster than ever?
3. Read the following statement, underline the false part of it and explain the reason. The team has found that the faster trees grow, the faster they store CO2, and the longer lives they live.
4. Please briefly present what you can do in daily life to reduce the emission of CO2.(about 40 words)
Chinese scientists have successfully cloned the world’s first Tibetan sheep in Northwest China’s Qinghai Province,
The research team from Northwest Agriculture & Forestry University and the Animal Disease Prevention and Control Center in Xining, capital of Qinghai, have jointly bred a cloned Tibetan sheep,
To produce 43 cloned embryos, the joint research team
In the next step, with the