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题型:阅读理解-阅读单选 难度:0.65 引用次数:51 题号:21477309

By the end of the century, if not sooner, the world’s oceans will be bluer and greener due to a warming climate, according to a new study.

At the heart of the phenomenon lie tiny marine microorganisms (海洋微生物) called phytoplankton, which create colourful patterns at the ocean surface. Ocean colour varies from green to blue, depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas, while reducing it in other spots, leading to changes in the ocean’s appearance.

Phytoplankton live at the ocean surface, where they pull carbon dioxide into the ocean while giving off oxygen. When these organisms die, they bury carbon in the deep ocean, an important process that helps to regulate the global climate. But phytoplankton are vulnerable to the ocean’s warming trend, which can easily affect phytoplankton growth.

Stephanie Dutkiewicz, a scientist in MIT’s Center for Global Change Science, built a climate model that projects changes to the oceans throughout the century. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters, such as those of the Arctic, a warming will make conditions riper for phytoplankton, and these areas will turn greener.

And why does that matter? Phytoplankton are the base of the food web. If certain kinds begin to disappear from the ocean, Dutkiewicz said, “it will change the type of fish that will be able to survive.” Those kinds of changes could affect the food chain.

Whatever colour changes the ocean experiences in the coming decades will probably be too gradual and unnoticeable, but they could mean significant changes. Dutkiewicz said, “The change in the colour of the ocean will be one of the early warning signals that we really have changed our planet.”

1. What are the first two paragraphs mainly about?
A.The various patterns at the ocean surface.
B.The cause of the changes in ocean colour.
C.The tiny marine organisms in the oceans.
D.The current condition of warming climate.
2. What does the underlined word “vulnerable” in Paragraph 3 probably mean?
A.Sensitive.B.Beneficial.C.Significant.D.Unnoticeable.
3. What can we learn from the passage?
A.Phytoplankton play a declining role in the marine ecosystem.
B.Dutkiewicz’s model aims to project phytoplankton changes.
C.Phytoplankton have been used to control global climate.
D.Oceans with more phytoplankton may appear greener.
4. What is the main purpose of the passage?
A.To assess the consequences of ocean colour changes.
B.To analyse the composition of the ocean food chain.
C.To explain the effects of climate change on oceans.
D.To introduce a new method to study phytoplankton.
【知识点】 环境保护 说明文

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文章大意:本文是一篇说明文。主要介绍了一项研究,该研究表明,采用弹性素食的饮食方式有助于改善环境。

【推荐1】The climate change has become an issue that no one can escape from. If the world wants to limit climate change, water shortage and pollution, we all need to choose “flexitarian” diets, say scientists.

This means eating mainly plant-based food, which is one of three key steps towards a sustainable future for all in 2050, they say. Food waste will need to be halved and farming practices will also have to improve, according to the study. Without action, the impacts of the food system could increase by up to 90%. Fast on the heels of the landmark report of the Intergovernmental Panel on Climate Change(IPCC) comes this new study on how food production and consumption impact major threats to the planet.

The authors say that the food system has a number of significant environmental impacts including being a major driver of climate change, providing freshwater and reducing pollution through over use of nitrogen (氮) and phosphorus (磷).

The study says that thanks to the population and income growth expected between 2010 and2050, these impacts could grow between 50%~90%. This could push our world beyond its geographic boundaries. So when it comes to climate change, the authors looked at what they called a “flexitarian diet”.

“We can eat a range of healthy diets but what they all have in common, according to the latest scientific evidence, is that they are all relatively plant-based,’’ said lead author Dr. Marco Springmann from the University of Oxford.

“You can go from a diet that has small amounts of animal products; some might call it a Mediterranean-based diet; we call it a flexitarian diet. We tried to stay with the most conservative one of these which in our view is the flexitarian one, but even this has only one serving of red meat per week,” he added.

If the world moved to this type of diet, the study found that greenhouse gas emissions (排放) from agriculture would be reduced by more than half.

1. What benefit will the new diets bring to the world?
A.The animals will be saved.B.People will need more water.
C.The climate change will stop.D.The pollution will be controlled
2. What can be called a “flexitarian” diet?
A.Eat animal products every meal.
B.Eat plant-based vegetables every meal.
C.Eat mainly vegetables and never eat animal products.
D.Eat plant-based meal mainly and animal products sometimes.
3. What will happen if the new diet is popular globally?
A.The climate will become warmer.B.The food consumption will increase.
C.People will have less greenhouse gas.D.People will produce more food waste.
4. What is the attitude of the author to the new diet?
A.Supportive.B.Doubtful.C.Opposed.D.Indifferent.
2024-01-07更新 | 27次组卷
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【推荐2】China officially informed the World Trade Organization on Tuesday that it will ban the import of 24 different types of solid waste by the end of this year as part of a campaign to deal with environmental pollution and protect people’s health.

In response to growing public concerns over the potential environmental and health danger caused by the increasing amounts of solid waste imported into the country for recycling and treatment, China passed a special law in 1995 to control imports of waste materials, such as plastics, slag from steelmaking, unsorted scrap paper and discarded textile materials.

A year later, the country published a list for solid waste imports and began implementing a permit system to control the import volumes and types of waste imported.

However, due to the lack of effective supervision(监管) and the failure of relevant departments to fulfill their duties, solid waste imports have not been effectively controlled.

So far, China is the world’s largest importer of solid waste. According to the Ministry of Environmental Protection, China imported 7.3 million metric tons of plastic waste worth $3.7 billion in 2016, accounting for 56 percent of global imports of solid waste.

Correct recycling of solid waste materials is an important part of the global economy, and moderate imports of scrap plastic, scrap paper and scrap rubber products, such as vehicle tires, can to some extent, make up for China's shortage of various raw materials.

However, the lack of supervision has resulted in the country’s severe soil and environmental worsening.

Given that China’s continuing efforts to push for industrial transformation and upgrading have resulted in a noticeable decline in the demand for the materials recycled from solid waste imports. It is right for the country to restrict such imports for the sake of the environment and public health, and to better adapt to the changed industrial structure.

1. Why will China ban the import of some waste materials?
A.The amount of imported solid waste is increasing.
B.The demand for imported solid waste is in decline.
C.Some solid waste has damaged the environment and public health.
D.People are more concerned about the environment and health now.
2. Which phrase has the same meaning as the underlined word?
A.Carrying out.B.Putting off.
C.Calling off.D.Fighting against.
3. What is the problem when China deals with the imported waste?
A.Some imported waste is difficult to control.
B.The environment can’t afford the imported waste.
C.Some departments haven’t shouldered their duties.
D.Some useful materials are also among the solid waste.
4. What can we learn from the passage?
A.China will not rely on importing solid waste any more.
B.Solid waste plays an important part in the global economy.
C.People are against importing solid waste from developed countries.
D.Some imported waste can relieve the urgent need for raw materials.
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【推荐3】Washing machines are one of the greatest inventions of the last few centuries.They have made life easier. Unfortunately, washing machines also contribute to the environmental issues of energy use and micro-plastics flowing into the oceans. That is why the washing machine manufacturer (制造商), Samsung, and the outdoor-wear company, Patagonia, are working together to make a change.

For Patagonia, the issue of micro-plastics has been on its mind for years — its woolen jackets release many microfibers. As for Samsung, new requirements throughout the world have forced many producers to start thinking about ways to help reduce the number of micro-plastics. There are currently more than 14 million tons of micro-plastics floating in the oceans. Though people previously think of things such as plastic bottles and fishing lines when it comes to plastics in the ocean, thousands of micro-plastics are released into seas with every wash.

The issue is a sort of catch-22. In order to reduce energy costs, manufacturers try to make their machines more efficient. These machines use hotter water and are designed to create more friction (摩擦) between the clothing in the machine. However, both of these things lead to the release of more micro-plastics. So, using Patagonia clothes as test cases, Samsung came up with a two-fold solution: One is a technology called Eco-bubbles, which creates more bubbles to make the detergent (洗涤剂) more powerful, and the other is a water purifier that can filter (过滤) out more micro-plastics.

The cooperation between the two companies is proof of how complicated protecting the environment can be. On the one hand, clothing that is well-constructed and durable is a weapon in the fight against fast fashion. On the other hand, the material used to make those clothes and the way they are washed can also add pollutants to the environment.The same goes for washing machines. There is no one-size-fits-all solution. The fight against climate change requires creative thinking and learning how to attack a problem from many angles. This will certainly lead to even more strange and fruitful cooperation between the environmentally conscious companies.

1. What is Samsung’s purpose in partnering the outdoor clothing company?
A.To limit the use of micro-plastics.
B.To solve the issue of energy waste.
C.To find a solution to micro-plastic pollution.
D.To produce high-efficiency washing machines.
2. What does the underlined word “catch-22” in paragraph 3 refer to?
A.A tricky situation.B.A questionable fact.
C.A possible dream.D.A practical method.
3. Which of the following will reduce the release of micro-plastics during washing?
A.Using hotter water.
B.Creating more friction.
C.Using powerful detergents.
D.Adding a water purifier to washing machines.
4. What does the cooperation between the two companies show?
A.The difficulty in fighting against fast fashion.
B.The complexity of environment conservation.
C.The influence of humans’ active action.
D.The importance of creative thinking.
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