The majority of new businesses fail because,_...

The majority of new businesses fail because, ________ they have a product or service that fills a gap in the market, they usually lack the skills in sales, marketing, and administration.

A. now that　　 B. even if

C. as long as　　 D. as though

高二英语单项填空中等难度题查看答案及解析

The majority of new businesses fail because,_________ they have a product or service that fills a gap in the market, they usually lack the skills in sales, marketing, and administration.

A. now that　　 B. even though　　 C. as long as　　 D. as though

高二英语单项填空中等难度题查看答案及解析

Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has confirmed that atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.

Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades. “We've been going to the same spot in the Pacific Ocean, and we try and characterize long­term change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we've been able to record this increasing quantity of atmospheric CO2 into the ocean.”

Scientists expected that as atmospheric CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.

“As carbon dioxide dissolves in the water, or seawater in this case, it forms a weak acid, carbonic acid，” Dore explains. “And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the PH down, and makes it more acidic.”

The seawater samples Dore and his colleagues have analyzed confirm what the theory predicts.

The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.

“It's important to realize that the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It's potentially catastrophic.”

1.What can be the best title of the passage?

A．Climate Change Affecting Seawater

B．Oceans Becoming More Acidic

C．Sea Life Facing Danger

D．Scientist Researching Seawater

2.With the increase of atmospheric CO2，________.

A．the surface water is becoming warmer

B．more corals will appear in the sea

C．the PH of the ocean out here has been increasing

D．the chemical balance of the seawater is affected

3.Which of the following shows the process of the impact of atmospheric CO2 on sea life?

a．Sea life is endangered.

b．CO2 goes into the surface water.

c．The ocean chemistry is affected.

d．CO2 decreases the PH and makes the seawater more acidic.

e. CO2 levels in the atmosphere go up.

A．a→e→b→c→d　　　　 　　 B．e→d→c→b→a

C．e→b→c→d→a　　　　 　 　　 D．a→b→c→d→e

高二英语阅读理解中等难度题查看答案及解析

Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has confirmed that atmosphere CO2 is also affecting the ocean chemistry and potentially harming sea life.

Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades. “We’ve been going to the same spot in the Pacific Ocean, and we try and characterize long-term change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we’ve been able to record this increasing quantity of atmosphere CO2 into the ocean.”

Scientists expected that as atmosphere CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.

“As carbon dioxide dissolves in the water or seawater in this case, it forms a weak acid, carbonic acid,” Dore explains. “And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the pH down, and makes it more acidic.”

The seawater samples Dore and his colleagues have analyzed confirm what the theory predicts.

The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.

“It’s important to realize that the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It’s potentially catastrophic.”

1.What can be the best title of the passage?

A. Scientist Researching Seawater　　　　　　　　

B. Sea Life Facing Danger

C. Oceans Becoming More Acidic　　　　　　　　

D. Climate Change Affecting Seawater

2.With the increase of atmospheric CO2, _______.

A. more corals will appear in the sea

B. the chemical balance of the seawater is affected

C. the surface water is becoming warmer

D. the pH of the ocean out here has been increasing

3.Which of the following shows the process of the impact of atmospheric CO2 on sea life?

a. Sea life is endangered.

b. CO2 goes into the surface water.

c. The ocean chemistry is affected.

d. CO2 decreases the pH and makes the seawater more acidic.

e. CO2 levels in the atmosphere go up.

A. a→b→c→d→e　　　　　　　　　　　　　　　　　　　　 B. e→b→c→d→a

C. a→e→b→c→d　　　　　　　　　　　　　　　　　　　　 D. e→d→c→b→a

4.Scientist Robert Dore came to the conclusion based on_______.

A. the expectation of other scientists　　　　

B. some former theory　

C. his research and analysis　　　　　　　　

D. a major cause of climate change

高二英语阅读理解中等难度题查看答案及解析

An agreement seems to be impossible because the majority of the committee members are ________it.

A.against B.for

C.to D.with

高二英语单项填空简单题查看答案及解析

If you need glasses to read this, you are among the majority of Chinese students. That’s because most students in China are short-sighted which means they can only see things close up and distant things will be blurry. Four-fifths of high school students wear glasses and now more and more children in primary school need glasses, too.

This epidemic of poor eyesight has two very simple causes: too much time spent indoors studying and too little time spent outdoors playing. Reading and writing for hours and hours, sometimes in poorly lighted rooms, causes eyesight to weaken. But students have to do this because there is so much pressure on them to succeed in school. And because they spend so much time indoors at school and at home, they have less time to spend outdoors enjoying the sun.

The sun, as a consequence, is important in developing good eyesight. Exposure to daylight releases a chemical in the eyes that prevents, or at least delays, short-sightedness. According to a study by Ian Morgan of Australian National University, Australian children and Chinese children have the same level of eyesight before they start school, but once they enter primary school, Chinese children only spend about an hour a day outside, while Australian children spend three to four hours each day in the sunshine. The result is that while about 40 percent of Chinese primary school students need glasses, only three percent of Australian children do.

Wearing glasses may not seem like a big deal. For some, wearing glasses can even be an opportunity to make a fashion statement. But poor eyesight at a young age can have serious long term consequences. As you get older, your eyesight can worsen and lead to things like macular degeneration(黄斑变性), a condition of the eyes for which there is no cure and which can eventually lead to blindness.

With all that in mind, don’t you think it’s time to give your eyes a break? Try spending a little less time inside and go for a walk in the park, instead. It’s the healthy thing to do and your eyes will thank you for it.

1.What does the underlined word “blurry” mean?

A. unpopular.　　 B. unpleasant.

C. unclear.　　 D. unconscious.

2.How should the students protect their eyesight according to the passage?

A. They should study less and less.　　 B. They should stay longer outdoors.

C. They should wear sun-glasses.　　 D. They should have a longer rest in bed.

3.It can be inferred from the passage that _____ is to blame for the poor eyesight of Chinese children.

A. the ever-worsening bad weather　　 B. the ever-increasing burden of study

C. the ever-decreasing sunny days　　 D. the ever-decreasing period of study time

4.What is the purpose of this article?

A. To explain why Chinese students are poor-sighted.

B. To admire Australian children’s good eyesight.

C. To criticizethe present education system.

D. To call on people to protect Chinese children’s eyesight

高二英语阅读理解中等难度题查看答案及解析

The majority of the local people got benefit from the medical reform which they are in ___ of.

A. honor      B. danger      C. favor      D. memory

高二英语单项填空简单题查看答案及解析

The students are busy making preparations for the lecture because they will ______ the competition.

A. attend                     B. join                         C. take part in              D. attend to

高二英语单项填空简单题查看答案及解析

Landscapes are not only the setting for history; they are also a major source of our sense of history and identity. Read them right, and historical landscapes can be more informative than any other kind of source. This is even more the case with sacred landscapes, which were reflection of our ancestors’ beliefs about their relation to the cosmos and can still today seem to hold a spiritual influence.

Over the years, I’ve had the good fortune to have spent time in many historical landscapes, hoping to picture something of the spirits of the people who shaped them over the centuries. I still remember years ago walking along the Inca sacred lines around Cusco, Peru. In this ancient landscape, old sites that once belonged to Incan royals had become torn Spanish mansions. Or many years ago, before the Gulf Wars, I took a journey through south Iraq, the heart land of civilization, where the desert is still crossed by dried-up riverbeds of the Euphrates and canals that once sustained the world’s first cities.

Britain also has its own magical ancient landscapes. From the Mesolithic to the Bronze and Iron Ages, rich layers of the past are still present in the landscape surrounding Stonehenge, even as traffic rushes down the A303. It is the A303 that is the problem. As the main road to the south west from the home counties, the road runs right past Stonehenge. One of humanity’s most famous monuments, Stonehenge is an archaeological landscape without parallel in Europe, and perhaps the world. The first circle at Stonehenge was made 5,000 years ago, and the great stone circle itself in a round 2,500 BC — the age of the pyramids! And the mysteries of this amazing monument and the complex prehistoric societies that produced it are by no means exhausted, as new discoveries continue to show.

All the more worrying to me then, this unique landscape is currently at the centre of a projected plan by Highways England, which aims to relieve congestion on the A303 by creating a four-lane road with a 1.8-mile tunnel, and an expressway interchange 1.5 miles to the west. While the National Trust and English Heritage have offered qualified support for the plan, UNESCO has expressed its opposition. Meanwhile, the Stonehenge Alliance, a group of archaeologists and environmental campaigners, says the plan is based on inadequate and obsolete information. In the end, the argument is about the totality of an ancient landscape, and that includes the ancient astronomical alignment that was purposefully chosen by our ancestors, and that will, in my view, be wrecked by the expressway interchange. Time perhaps for a rethink in the name of future generations?

1.What can historical landscapes offer us?

A.Details of ancient lifestyle. B.Sacred writings

C.Rich historical information D.Breathtaking sights.

2.What did the author want to explore when touring historical landscapes?

A.Different architecture. B.His sense of belonging.

C.The rise of ancient cities. D.The spirits of ancestors.

3.Which of the following is True about Stonehenge?

A.The first stone circle has a longer history than the pyramids.

B.New discoveries have solved the mysteries of the monument.

C.The ancient monument must have been the heart land of civilization.

D.The landscape surrounding Stonehenge has rich layers of the present.

4.What is the author’s attitude towards the projected plan by Highways England?

A.He is for it because it will benefit the future generations.

B.He keeps cool but believes a better solution could be adopted.

C.It should be stopped because it will destroy the totality of the monument.

D.It is rather practical especially with qualified support from the government.

高二英语阅读理解困难题查看答案及解析

The thought of taking the exam again_____me, because I often felt____when I failed.

A. depressing; depressed　　 B. depressing; depressing

C. depressed; depressed　　 D. depressed; depressing

高二英语单项填空中等难度题查看答案及解析