Scientists across the world agree that this i...

Scientists across the world agree that this is an invention of ____ great significance, ____ invention that will greatly change human life.

A. a; the     B. a; an     C. / ; the      D. / ; an

高二英语单项填空简单题查看答案及解析

The news inspired the whole world______ Israeli scientists have invented a kind of magic glasses_________ can let the blind see things.

A. that; what　　　　 B. which; that　　　　　 C. what; that　　　　 D. that; which

高二英语单项填空中等难度题查看答案及解析

Scientists and doctors across the world have done _____ research over the years, hoping to find a cure for cancer.

A. a great deal of　　 B. quantity of

C. quite a few　　　　　 D. a large number of

高二英语单项填空中等难度题查看答案及解析

Is this the very material that scientists ______ the 2012 London Olympic Games torch?

A. used to light                         B. are used to lighting

C. use to light                           D. are used to light

高二英语单项填空简单题查看答案及解析

They also agree that it is the burning of more and more fossil fuels that has resulted ____ this increase in carbon dioxide.

A．from             B．of               C．in               D．to

高二英语单项填空中等难度题查看答案及解析

Record fires sweeping across the Amazon this month have been grabbing global headlines as scientists and environmental groups are worried that they will aggravate climate change crisis and threaten biodiversity (生物多样性).

As the largest rainforest in the world, the Amazon is often called "the lungs of the world". It is also home to about 3 million species of plants and animals, and 1 million local people. The vast rainforest plays an important role in the world's ecosystem because they absorb heat instead of it being reflected back into the atmosphere. They also store carbon dioxide and produce oxygen, ensuring that less carbon is released, mitigating the effects of climate change.

"Any forest destroyed is a threat to biodiversity and the people who use that biodiversity," Thomas Lovejoy, an ecologist at George Mason University told National Geographic. "The overwhelming threat is that a lot of carbon goes into the atmosphere," he stressed. "In the midst of the global climate crisis, we cannot afford more damage to a major source of oxygen and biodiversity. The Amazon mu:st be protected/5 U.N. Secretary General Antonio Guterres said.

Data from the National Institute for Space Research (INPE) show that the number of forest fires in Brazil quickly increased by 82 percent from January to August this year from a year ago. A total of 71,497 forest fires were registered in the country in the first eight months of 2019, up from 39,194 in the same period in 2018, INPE said. "We estimate that the forest areas in the Brazilian Amazon have decreased something between 20 and 30 percent compared to the last 12 months," Carlos Nobre, a researcher at the University of Sao Paulo, told German broadcaster Deutsche Welle.

Brazil owns about 60 percent of the Amazon rainforest, whose degradation could have severe consequences for global climate and rainfall. The extent of the area ruined by fires has yet to be determined, but the emergency has transcended (超出)Brazil's borders, reaching Peruvian, Paraguayan and Bolivian regions.

1.Which of the following best explains "mitigating” underlined in Paragraph 2?

A.Worsening. B.Causing. C.Easing. D.Benefiting.

2.What can we learn from Thomas's and Antonio's words?

A.The biodiversity makes the rainforest unique.

B.The rainforest fires result in serious consequences.

C.The global climate crisis brings more rainforest fires.

D.The dry weather leads to the rainforest fires.

3.Why does the author list the numbers in Paragraph 4?

A.To present the reduction of rainforest areas.

B.To show the influence of forest fires.

C.To explain the process of the research.

D.To prove the importance of rainforest.

4.Which section of a magazine is this text probably taken from?

A.Sports and music. B.Science and technology.

C..Business and culture. D.Nature and geography.

高二英语阅读理解中等难度题查看答案及解析

It is true that world population is growing, but this is not the cause of our current and future global problems. Believing this will cause us to ignore the real problem and risk long-term damage to our planet.

Let me start by explaining why overpopulation is a myth. For one thing, the UN Population Division regularly predicts population growth but provides a low variant　 (变量), medium variant, and high variant to factor in various possibilities. In the 2010 revision, their high variant suggests that the world population will be almost 16 billion in 2100, but the low variant predicts it will peak at 8 billion and decrease to just over 6 billion by 2100. In most cases, it is the low variant that has come true in the past, suggesting the same will be true of their future population predictions. In addition to this, the size of families is actually decreasing.

For another, if the Earth is overpopulated, there needs to be insufficient (短缺) food, water, and space for humans to live. However, Indian economist Raj Krishna estimates that India alone is able to increase crop produce to the point of providing the entire world’s food supply. The World Food Programme confirms that there is sufficient food grown to feed the world and there is the same amount of fresh water on the planet now as there was 10,000 years ago. So how is it possible that the number of people in the world is affecting our planet?

Therefore, it is not an increase in population but an increase in consumption that is a severe threat. Materialism and overconsumption are facts of life for everybody in the western world, as possessions reflect a person’s status in society and people strive to obtain happiness through owning the latest fashionable goods. Not only that, but waste is a common occurrence which has a huge effect on our resources. It is a sad truth that 80% of the world’s resources are currently used by just 20% of the world’s population.

Our overconsumption must be addressed now to make our lives more sustainable (可持续的) and avoid continuing the terrible damage to the environment we are causing. The key is education. If we do not work towards this but instead focus on the wrong issue, we may find ourselves living on a planet that can no longer sustain human life.

1.According to the author, what causes our current and future global problems?

A. The increase in population.

B. Shortage of food and water.

C. The fast growth of material needs.

D. Failure to protect the environment.

2.The underlined word “myth” in Paragraph 2 is closest in meaning to _________.

A. fact　　 B. misunderstanding　 C. possibility　 D. uncertainty

3.The author stresses that _____.

A. people should save food and water

B. economists are making wrong predictions

C. wrong judgment leads to serious consequences

D. measures should be taken to reduce population

4.What is mainly discussed in the passage?

A. The real cause of global problems.

B. The severe effect of overpopulation.

C. Reasonable use of natural resources.

D. Methods to reduce overconsumption.

高二英语阅读理解中等难度题查看答案及解析

It is true that world population is growing, but this is not the cause of our current and future global problems. Believing this will cause us to ignore the real problem and risk long-term damage to our planet.

Let me start by explaining why overpopulation is a myth. For one thing, the UN Population Division regularly predicts population growth but provides a low variant (变量), medium variant, and high variant to factor in various possibilities. In the 2010 revision, their high variant suggests that the world population will be almost 16 billion in 2100, but the low variant predicts it will peak（达到顶峰） at 8 billion and decrease to just over 6 billion by 2100. In most cases, it is the low variant that has come true in the past, suggesting the same will be true of their future population predictions. In addition to this, the size of families is actually decreasing.

For another, if the Earth is overpopulated, there needs to be insufficient (短缺) food, water, and space for humans to live. However, Indian economist Raj Krishna estimates that India alone is able to increase crop produce to the point of providing the entire world’s food supply. The World Food Programme confirms that there is sufficient food grown to feed the world and there is the same amount of fresh water on the planet now as there was 10,000 years ago. So how is it possible that the number of people in the world is affecting our planet?

Therefore, it is not an increase in population but an increase in consumption that is a severe threat. Materialism and overconsumption are facts of life for everybody in the western world, as possessions reflect a person’s status in society and people strive to obtain happiness through owning the latest fashionable goods. Not only that, but waste is a common occurrence which has a huge effect on our resources. It is a sad truth that 80% of the world’s resources are currently used by just 20% of the world’s population.

Our overconsumption must be addressed now to make our lives more sustainable and avoid continuing the terrible damage to the environment we are causing. The key is education. If we do not work towards this but instead focus on the wrong issue, we may find ourselves living on a planet that can no longer sustain human life.

1.According to the author, what causes our current and future global problems?

A. The increase in population.

B. Shortage of food and water.

C. The fast growth of material needs.

D. Failure to protect the environment.

2.The underlined word “myth” in Paragraph 2 is closest in meaning to _________.

A. fact　　 B. uncertainty

C. possibility　　 D. misconception

3.The author stresses that _____.

A. people should save food and water

B. economists are making wrong predictions

C. wrong judgment leads to serious consequences

D. measures should be taken to reduce population

4.What is mainly discussed in the passage?

A. The real cause of global problems.

B. The severe effect of overpopulation.

C. Reasonable use of natural resources.

D. Methods to reduce overconsumption.

高二英语阅读理解中等难度题查看答案及解析

The food here is so bad that every other restaurant in the world must be ____ this one.

高二英语单项填空简单题查看答案及解析

There is a lot of love in today’s world and I’m convinced that this is still the most powerful ______ in the world.

高二英语单项填空简单题查看答案及解析