Jogging in the open air takes a lot more time...

Jogging in the open air takes a lot more time and energy, but it’s an economical ________ to my gym subscription.

A.submission B.alternative C.devotion D.commitment

高三英语单项填空中等难度题查看答案及解析

More and more people prefer jogging in the morning, _______ benefits for health arise from the air rich in oxygen.

A. which　　 B. that　　　 C. whose　　　　　 D. who

高三英语单项填空中等难度题查看答案及解析

More and more people go jogging in the morning,　 ______ benefits for health arise from the air rich in oxygen.

A. which　　 B. that　 C. whose　　 D. who

高三英语单项填空中等难度题查看答案及解析

Smog in Europe and North America could be more than 25 times more deadly than the average air pollution found in Chinese cities, a new study suggests. In the largest ever study of its kind in the developing world, researchers tested the effects of air pollution on the health of people in 272 cities in China.

They found average annual exposure to fine particles, known as PM2.5, in those cities was more than five times higher than the level recommended by the World Health Organization (WHO), according to a paper in the American Journal of Respiratory and Critical Care Medicine.

However they also discovered that it was much less likely to increase the death rate than PM2.5 in Europe and North America.

The researchers, led by Dr Maigeng Zhou, of the Chinese Centre for Disease Control and Prevention, suggested this was because China is affected by large amounts of natural dust blown by the wind from arid areas, while most pollution in the West comes from industry.

They found that for every increase of 10 micrograms of air pollution in a cubic meter of air, the mortality rate increased by 0.22 percent, discounting deaths from accidents.

Professor Frank Kelly, an expert in environmental health at King’s College London, who was not involved in the study but has studied air pollution in China, told The Independent: “Those relative risks are considerably less than those seen in Europe and the US. For mortality(死亡率) in Europe we are working on a six percent increase per 10 micrograms.” That suggests air pollution in Europe is about 27 times more toxic than average air pollution in China.

However, Professor Kelly said cities like Beijing, Shanghai and Hong Kong were likely to suffer from Western-style air pollution. "The natural dust component there is not of the magnitude that it would dwarf the coal, biomass and fossil fuel signals,” he said, “That may be true in certain cities whose pollution is not dominated by local power generation or major traffic congestion.”

Natural dust particles can cause physical damage to the lungs and trigger an asthma attack. Particles of carbon produced when fossil fuels are burned can lead to similar problems but they are also coated with toxic heavy metals, chemicals and volatile organic compounds. These are able to pass from the lungs into the blood stream where it is thought they cause further damage to the body.

Areeba Hamid, an air pollution campaigner with environmental group Greenpeace, said: “Poisonous air causes damage to people’s health wherever in the world they live. We now know fumes from diesel(柴油机) vehicles are a lot more poisonous than car companies claimed and this is a big cause of air pollution in Europe and North America. These companies have a lot to answer for, but so far they’ve managed to avoid any real accountability.”

The study of cities in China found the average annual expose to PM2.5 was 56 micrograms per cubic meter, compared to the WHO guideline limit for safe air quality of 10 micrograms.

People who were older than 75, had less education or who lived in hotter places were more likely to die. It is thought people in warmer cities were more likely to spend time outside or leave their windows open, thereby breathing more polluted air, the researchers said. They also speculated that less well educated people might have poorer access to health care or experience poorer environmental health conditions.

1.Why PM2.5 in China is less deadly than that in Europe and North America?

A. China is free from any pollution about PM2.5.

B. Pollutants affecting China mainly come from arid areas.

C. Fewer people died from PM 2.5 in China than those in Europe and North America.

D. Europe and North America are polluted by natural dust.

2.What does the underlined part in Para 7 refer to?

A. The average mortality rate.　　 B. The higher mortality rate.

C. The lower mortality rate.　　 D. The normal mortality rate.

3.What’s the real cause of air pollution in Europe and North America according to Areeba Hamid?

A. Fumes from diesel vehicles are much more poisonous.

B. The environmental agencies can’t take on responsibilities.

C. The technology doesn’t meet the standards.

D. Car companies can’t evaluate the results.

4.The author’s purpose of writing the passage is to ________.

A. appeal to people to lay an emphasis on environmental protection

B. illustrate smog in Europe and North America is quite serious

C. demonstrate China is safest place in the world to live in

D. provide some good ways to address the smog

高三英语阅读理解困难题查看答案及解析

My wife, daughter, and I moved into our home nine years ago and we spent a lot of time and energy in the yard to get it looking like the way it does today. We live on a corner, higher than street level, and the entire side of the yard is surrounded by a professionally built rock wall. The front of the house though is another story because instead of a wall along the sidewalk, the rocks appear to be just thrown up onto the dirt as if someone were in a hurry to finish.

We did the best we could with what we had to work with and called this area our “rock garden”. Whenever we had leftover flowers or plants, Denise or I would stick them out front, just to bring some color to the area. We would do all of the yard work on our own, even the tiring weed-pulling.

Last summer I had reached the end of the rock garden and found a tiny little plant that I could not immediately identify, I knew I didn’t plant it and Denise claimed that she didn’t either. We decided to let it continue growing until we could figure out what it was.

Weeks passed and as I made my way back to the mystery plant, it appeared to be a sunflower with a tall skinny stalk(茎，杆) and only one head on it. I decided to baby it along and weed around it. As I pulled rocks from the area to get to the weeds, I noticed something unusual. The sunflower had not started where I saw the stalk begin. It actually had begun under a big rock and grown under and around it to reach the sun.

That’s when I realized that if a tiny little sunflower didn’t let a big rock stand in its way of developing, we too have the ability of doing the same thing. Once our environment begins to see that we believe in ourselves like that little sunflower, we can attain the same nourishment(营养) and growth as well.

Stand tall like the sunflower and be proud of who and what you are and the environment will begin to support you. You will find a way to go under or around your big obstacle in order to reach your desires.

1.We can know from the first paragraph that _______.

A. there is a wall along the sidewalk

B. the author’s home is made of rock walls

C. the author finished building his home hurriedly

D. the author’s family have lived in this home for nine years

2.The author found it unusual that_______.

A. the mystery plant turned out to be a sunflower　　 B. the sunflower had a tall stalk and only one head

C. the sunflower grew under and around a big rock　　 D. the sunflower had started where the stalk was seen

3.Which of the following best describes the sunflower?

A. Brave and stubborn.　　 B. Confident and persistent.

C. Optimistic and modest.　　 D. Mysterious and devoted.

4.What can be inferred from this passage?

A. Human beings are able to remove obstacles.

B. The universal truth made the sunflower survive.

C. A big rock blocked out the sunlight of the sunflower.

D. We can achieve success as long as we are self-confident.

高三英语阅读理解困难题查看答案及解析

My wife, daughter, and I moved into our home nine years ago and we spent a lot of time and energy in the yard to get it looking like the way it does today. We live on a corner, higher than street level, and the entire side of the yard is surrounded by a professionally built rock wall. The front of the house though is another story because instead of a wall along the sidewalk, the rocks appear to be just thrown up onto the dirt as if someone were in a hurry to finish.

We did the best we could with what we had to work with and called this area our “rock garden”. Whenever we had leftover flowers or plants, Denise or I would stick them out front, just to bring some color to the area. We would do all of the yard work on our own, even the tiring weed-pulling.

Last summer I had reached the end of the rock garden and found a tiny little plant that I could not immediately identify, I knew I didn’t plant it and Denise claimed that she didn’t either. We decided to let it continue growing until we could figure out what it was.

Weeks passed and as I made my way back to the mystery plant, it appeared to be a Sunflower with a tall skinny stalk（茎，杆）and only one head on it. I decided to baby it along and weed around it. As I pulled rocks from the area to get to the weeds, I noticed something unusual. The Sunflower had not started where I saw the stalk begin. It actually had begun under a big rock and grown under and around it to reach the sun.

That’s when I realized that if a tiny little Sunflower didn’t let a big rock stand in its way of developing, we too have the ability of doing the same thing. Once our environment begins to see that we believe in ourselves like that little Sunflower, we can attain the same nourishment（营养）and growth as well.

Stand tall like the Sunflower and be proud of who and what you are and the environment will begin to support you. You will find a way to go under or around your big obstacle in order to reach your desires.

1.We can know from the first paragraph that ______.

A. the author finished building his home hurriedly

B. the author’s family have lived in this home for nine years

C. the author’s home is made of rock walls

D. there is a wall along the sidewalk

2.The author found it unusual that ______.

A. the mystery plant turned out to be a Sunflower

B. the Sunflower had a tall stalk and only one head

C. the Sunflower grew under and around a big rock

D. the Sunflower had started where the stalk was seen

3.Which of the following best describes the Sunflower?

A. Brave and stubborn　　 B. Confident and persistent

C. Optimistic and modest　　 D. Mysterious and devoted

4.What can be inferred from this passage?

A. Human beings are able to remove obstacles

B. The universal truth made the sunflower survive

C. A big rock blocked out the sunlight of the sunflower

D. We can achieve success as long as we are self-confident

高三英语阅读理解中等难度题查看答案及解析

Good news for coffee and tea drinkers: No more wasting time and energy waiting for the perfect cup. Using patented Heatworks’ Ohmic Array Technology, the DUO Smart Untethered Carafe (玻璃水瓶) has the power to heat or cool water to the exact degree while you pour. With its functionality, convenience and stylish appearance, the DUO looks like quite the game changer.

So how does it work? The precise temperature control lets you pick the water temperature to the plus/minus one degree. Simply set your temperature, pour water into the tank(fits four cups) at the top and pour into your cup. The carafe features one blue spout(出水口) for filtered (过滤的) cold water and another red spout for hot water, which appears to heat up instantly.

The entire device is battery operated, making it perfect for taking it to the office or really anywhere else. Youwill also be able to plug it in, so the carafe can stay comfortably on your kitchen　 table or desk to charge for on -the -go use.

The DUO advocate 99 percent energy efficiently and an advanced water filtration system created by heat works CEO Jerry Callahan,who wanted to create a heating system without using metal heating elements. Unsustainable and imperfect metal heating parts have been used for heating for the past 100 years and carry the risk of rusting(生锈). Callahan felt It was time for an upgrade heating systems, and the Ohmic Array Technology was born. Using electrical currents passed through the water itself rather than separate heated elements to transfer heat into the water. Ohmic Array cuts out a whole step in the process.

The DUO is not yet available for purchase, but you can learn more Information and sign up for the release updates on the Heatworks website.

1.What do we know about the DUO carafe from the first paragraph?

A. It makes perfect coffee. B. It heats or cools water.

C. It produces electricity to heat water D. It provides fun game to play

2.Which step is a must to get water of 80 °C with the DUO Carafe?

A. Set the required temperature B. Cool the boiling water

C. Pour water from the blue spout D. Add filtered water into the tank

3.The Ohmic Array Technology makes the DUO Carafe ___

A. fast to charge B. convenient to take

C. tough and stylish D. rust-free and time efficient

4.What's the main purpose of the text?

A. To apply for a patent B. To introduce a product

C. To report a product launch D. To share a technology

高三英语阅读理解中等难度题查看答案及解析

--May I open the window to let in some fresh air?

-- __________

A. Come on. B. Take care.

C. Go ahead! D. Hold on!

高三英语单项填空简单题查看答案及解析

—May I open the window to let in some fresh air?

—________！

A．Come on　                         B．Take care

C．Go ahead　                         D．Hold on

高三英语单项填空中等难度题查看答案及解析

—May I open the window to let in some fresh air?

—___________

A. Come on     B. Take care    C. Go ahead!    D. Hold on!

高三英语单项填空简单题查看答案及解析