Experts warn that global warming will cause c...

Experts warn that global warming will cause extreme climate changes including more______　　　　 floods, heat waves and droughts.

A. usual　　　　 B. ordinary　　　　 C. frequent　　　 D. common

高三英语单项填空中等难度题查看答案及解析

Experts warn that global warming will cause climate changes, including more ______ floods, heat waves and droughts.

A. frequent             B. usual                                 C. ordinary                     D. common

高三英语单项填空简单题查看答案及解析

Many scientists believe that global warming, if       , will cause extreme climate changes this century.

A．not stopping         B．no stop             C．not stopped         D．without stop

高三英语单项填空简单题查看答案及解析

Climate change, global warming, the greenhouse effect … these days nobody denies that there is something strange and worrying happening to the atmosphere. Scientists are puzzled by the rise in carbon dioxide in the atmosphere. They are afraid that the world may be a short way from what they refer to as uncontrolled global warming.

At Mauna Loa Observatory in Hawaii, meteorologists(气象专家) have been carefully monitoring the amount of carbon dioxide in the Earth’s atmosphere for the past 50 years. Until recently, there has been a gradual increase of around 1.5 parts per million (ppm). In 2013 the figure rose to 2.08 ppm and in the following year they registered an increase of 2.54 ppm.

.Climate analysts feel that it istoo soon to draw conclusions about the phenomenon although the public are concerned that the carbon dioxide emissions are getting out of control. Jason Samenow, the chief meteorologist in the American National Weather Service,thinks that instead of having decades to find a solution to the problem, people might have only a few years. He believes that the Earth’s natural systems for absorbing the gas are breaking down resulting in the uncontrolled green house effect. He insists that this is something that could happen if the Earth’stemperatures rose to such a degree that it was unable to contain the heat. .

One interesting aspect of this climate change ng down resulting in the uncontrolled greenhouse effect. He insists that this is something that could happen if the Earth’s temperatures rose to such a degree that it was unable to contain the heat.is that it is not happening in a uniform way around the world. Carbon dioxide levels in the South Pole are noticeably lower. This suggests that something has happened in the northern hemisphere that set off the rise. Forest fires in North America might hold the answer to the puzzle, along with very hot summers in Europe.

The 2014 heat wave was certainly out of the ordinary. Statistics claim that more than 30,000 people lost their lives as a direct result of the high temperatures. Scientists are being cautious in their interpretations. Most feel that it is too soon to say that a new trend has been set. All agree that the phenomenon needs to be closely observed.

1.What puzzles scientists according to Paragraph 1?

A. Something strange and worrying in life.

B. Uncontrolled global warming.

C. The increase in carbon dioxide in the atmosphere.

D. The effects of climate change on everybody.

2.What opinion does Jason Samenow hold on the gradual increase of carbon dioxide?

A. People still have decades to solve this problem.

B. Uncontrolled greenhouse effect may happen in some situation.

C. The Earth’s natural systems for absorbing the gas have completely broken down.

D. The public shouldn’t be responsible for carbon dioxide emissions.

3.What does Paragraph 4 mainly talk about?

A. Forest fires in North America.

B. Low temperatures in the South Pole.

C. Hot summers in Europe.

D. North and South differences in climate change.

4.How will scientists deal with the high temperatures?

A. By observing the phenomenon closely.

B. By giving a solution directly.

C. By experiencing high temperatures personally.

D. By setting a new trend soon.

高三英语阅读理解中等难度题查看答案及解析

When the natural climate changes due to global warming, it can surely affect seals (海豹). The majority of them live in the Antarctic region but the ice is melting and their natural habitat can be seriously affected. These changes don’t take place overnight. They can be the result of many years of additional temperatures in the area. The seals then have to find ways to adapt.

Seals depend on the cool air currents to bring plenty of food for them. When the temperatures get higher there is less and less food and the seal population starts to get depleted. Mothers are not healthy enough to feed their babies. Many of them end up abandoned as the mothers have to leave to find their own source of food.

The fact that their desire to produce young can be changed and the warmer temperature is frightening too. It is also believed that the warmer temperature can allow different diseases and viruses to attack the seals. This is a huge concern as they can rapidly wipe out huge numbers of seals out there.

However, these changes in climate and temperature aren’t all bad for other species of seals. Scientists have found that those living in warmer climates are producing more young due to the changes. Research also shows that the females are moving further to find food and water. When they are out of the reach of the governing males, they are more willing to accept the moves of other males in the group.

This is good news too because it means that there will be more selection in the gene pool (基因库) for future generations. It can help the seals as a species adapt to change in their natural environment more easily.

The climate change problem for seals is directly linked to humans. When we take action to change what we let out into the environment, we will make positive changes for the seals. However, it is going to take a very long time to reverse (彻底改变) the effects of what has already been done.

1.What does the author regard climate changes for seals as?

A.A mirror of evolution.

B.A double-edged sword.

C.An unavoidable disaster for existence.

D.A requirement for more choice in the gene pool.

2.What does the underlined phrase in paragraph 2 probably mean?

A.Explode. B.Vary.

C.Disappear. D.Decrease.

3.What will happen to the seals in warmer climates?

A.The female seals will be in the lead.

B.Their genes will change a great deal.

C.Their number will be on the increase.

D.The females will keep away from the males.

4.What’s the main idea of the text?

A.How climate change affects seals. B.The importance of protecting seals.

C.Seal’s adaptation to climate change. D.Why seals are becoming less and less.

高三英语阅读理解困难题查看答案及解析

Traffic is one of the major causes of global w_______ and climate change.

高三英语单词拼写简单题查看答案及解析

We sometimes think global warming or climate change is a problem very far away from our lives, and that only the government needs to worry about it. But it's hardly possible to completely stay out of it ­ scientists are now 95 percent sure that humans have been the “dominant cause” of global warming trends since the 1950s.

One of the conclusions of a report released on Sept 27 by the United Nations says that human activities have caused global temperatures to rise by 0.89 0C between 1901 and 2012. That might not seem like a lot, but the truth is that a major part of that heat has been absorbed into the oceans, which is not surprising given that they cover two thirds of Earth's surface. Also, water has a much greater capacity (容量) to absorb heat than the air does, according to The Economist.　

While many greenhouse gases occur naturally and are needed to keep the Earth warm enough to support life, humans' use of fossil fuels is the main source of excess (多余的) greenhouse gases. According to CNN, by driving cars, using electricity produced by burning coal and oil or heating our homes with coal or natural gas, we release a large amount of greenhouse gases into the atmosphere.

Your body can barely feel a difference of 0.89 0C, but the Earth's ecosystems are so sensitive that even small changes can disturb them. It often starts with the smallest creatures at the bottom of the food chain, eventually affecting bigger animals, many of which could end up becoming extinct.

Global warming is also linked to an increase in extreme weather. A larger amount of carbon dioxide traps more energy inside the atmosphere. This changes the patterns of storms and rainfall in many regions and can lead to droughts and floods. Worse still, melting sea ice in warmer oceans is causing sea levels to rise at a speed of more than three millimeters per year, according to The Guardian, which also increases the risk of flooding.

“The report should serve as another wake­up call that our activities today have a profound impact on society, not only for us, but for many generations to come，” French Michel Jarraud, secretary­general of the World Meteorological Organization, said at a news conference.

1.The underlined word “dominant” in the first paragraph means “ ________”．

A. common　　　 　　    B．indirect

C．secondary　     D．leading

2.Which of the following statements is TRUE according to the passage?

A．Greenhouse gases have been proven to harm merely the Earth .

B．There is little we can do to prevent global warming.

C．Global warming can increase the chances of droughts and floods.

D．The hugeness of oceans makes them better absorbers of heat than the air.

3.The rise in global temperatures between 1901 and 2012 ________.

A．is more harmful to smaller creatures than bigger ones　

B．is not serious because most of the extra heat has been absorbed by the oceans

C．has made the Earth's ecosystems more sensitive to changes

D．is likely to cause many species to become extinct

4.What is Michel Jarraud's attitude toward the report released by the UN?

A．Negative.　     B．Supportive.

C．Doubtful.　     D．Uninterested.　　

高三英语阅读理解中等难度题查看答案及解析

Global warming is a big _______ for all and it’s important to raise awareness about climate change.

A．reward           B．concern           C．evolution          D．boom

高三英语单项填空简单题查看答案及解析

Climate change will increase US wildfires,and the smoky air will cause terrible problems in areas far beyond those burned,reports an environmental group Thursday.

Two-thirds of Americans,or nearly 212 million,lived in states suffering from wildfire smoke three years ago,according to the report by the Natural Resources Defense Council(NRDC).These areas,which had smoke for at least a week,were nearly 50 times greater than those burned directly by fire.

“It affects a much wide area of the United States than people have realized.” says author Kim Knowlton,a Columbia University health professor,adding the smoke can move up to hundreds of miles.She says the smoke contains air pollution and can cause several kinds of diseases.

Texas was hit hardest in 2011,when smoke stayed for at least a week in areas that are home to 25 million people,according to NRDC’s report.Illinois,which recorded no wildfires within its borders,came second with

nearly 12 million people affected by smoke that moved in from elsewhere.The other eight states with the most people in touch with smoky air were,in descending　 order: Florida,Missouri,Georgia,Louisiana,Michigan,Alabama,Oklahoma and Iowa.

Nearly two dozen states had no wildfires within their borders in 2011,but eight of them still had at least one week of smoky air: Illinois,Missouri，Iowa,Kansas,Nebraska,Indiana,Wisconsin and Ohio.

Only 18 states and the District of Columbia had no people in touch with at least a week of smoke that year,although five of them—Alaska,California,Hawaii,Nevada and Utah—had a large area burned by wildfires.

The problem will only get worse.Knowlton says.Scientific research shows climate is causing higher temperatures and health problems.

1.We can learn from the first two paragraphs that_______.

A. climate change killed many Americans

B. there are fewer states burned by wildfires

C. every state had wildfire smoke for at least a week

D. most Americans suffered from wildfire smoke 3 year ago

2.Which of the following states had wildfires within its borders in 2011?

A. Iowa.　　 B. Kansas.

C. Ohio.　　 D. California.

3.The underlined word “descending” in the fourth paragraph probably means _______.

A. going down　　 B. coming true

C. looking practical　　 D. turning back

4.What is the text mainly about?

A. Climate change causes more wildfires.

B. Wildfire smoke becomes a serious health problem.

C. More wildfires cause climate changes.

D. Air pollution becomes a terrible problem.

高三英语阅读理解困难题查看答案及解析

To meet the global climate crisis that is approaching, big lifestyle changes are required of those of us. The good news is that our way of life can remain meaningful and worthy as our consumption becomes sustainable(可持续发展的).

1. Eat less meat and move toward a plant-based diet. This is one of the most effective things we can do because the food we now produce and consume is destroying the very ecosystems that we depend upon for survival. Here are some of the grim facts.

The U. S. uses about one-half of its land for agriculture. 2.For example, the U. S. uses over 90 million acres of good agricultural land to produce corn, which is mostly fed to livestock(家畜).

With 7.6 billion people on earth, the demand for food is enormous and constantly on the rise. It’s easy to feel we can’t make a difference. 3.We should not ignore the power of the choices we make.

Even one person can make a big difference by eating less meat and moving toward a plant-based diet and make contributions to the health of the planet as well as your own. Recognize how the food we eat is connected to other living beings. It often helps us make much wiser buying choices. 4.This way, we will help people around the world enjoy more eco-friendly and nutritious foods.

5.When you change your diet to be more sustainable, you become visible proof that changing our food habits is doable, healthy, and enjoyable.

A. Little things matter in your relationship with the earth.

B. By buying mindfully, we support local, affordable agriculture.

C. But we can change our diet to heal the earth as we heal ourselves.

D. Unfortunately, the majority is used to raise livestock or for crops consumed by them.

E. Your choices create positive impacts on the food system and inspire the people around you.

F. There’s one step you can take right away to reduce harm to Mother Earth.

G. We can try to reduce waste by using leftovers and eating the fresh produce we buy.

高三英语七选五困难题查看答案及解析