The driver can adjust the heating in winter and the air conditioning in summer to suit his own _______.
A. preference B. convenience C. pleasure D. favour
高三英语单项填空简单题
The driver can adjust the heating in winter and the air conditioning in summer to suit his own _______.
A. preference B. convenience C. pleasure D. favour
高三英语单项填空简单题查看答案及解析
The temperature on the inside of the car can be adjusted to suit the driver’s__________ in winter and summer.
A. pleasure B. preference C. measurement D. selection
高三英语单项填空中等难度题查看答案及解析
The desks and seats being used in the school can be adjusted ________ the height of any child.
A. at B. to C. from D. over
高三英语单项填空中等难度题查看答案及解析
As people in Beijing and northern China struggle with severe air pollution this winter,the toxic(有毒的)air is also making life hard for plants and even food crops of China.
"in the last 50 years there has been a 1 6-fold increase in ozone(臭氧)pollution”in the Beijing area,said Hanqin Tian of Auburn University in Alabama,who studies the effects of China's pollution and climate change on plants.
Ozone is particularly harmful to plants because it damages the pores(气孔) on leaves,called stomata,which plants use to regulate how much water evaporates from the leaves.That,in turn,affectS how much water a plant must take up through its roots.Changes in water uptake by plants have been documented in other parts of the world,including the United States,as having major impacts on regional groundwater and surface water supplies.
In studies of the long-term productivity of plants,Hanqin Tian and some of his colleagues show that ozone pollution,along with climate change,has been lowering plant productivity in China,which reduces the amount of carbon and other pollutants that the plants Can absorb to fight all the emissions from the burning offossil fuels.
The worst effects on plants are likely to be in areas where the growing pollution problem is just fairly new, said Arthur Chappelka, also a plant researcher at Auburn University.Some plants are more resistant to pollutants than others,he said,and the plants that are living today in long-polluted urban areas are likely to be only those that are very pollution tolerant.
Away from the cities, however, where crops are necded to feed China’s yast population, the effeets of the growing pollution on crops is a significant concern.
“In some ways it affects the crop production and food securiy of China,”said Hanqin Tian.“Air quality is really important for human health, plants and ecosystem and sustainability.”
The problem is bound to get worse as China continues to develop economically, he said, and so he and other researchers continue to urge the Chinese government to take action to reduce emissions from cars and industries.
1.ozone does harm to plants mainly by ________.
A.exposing them to strong sunlight
B.damaging the structure of their leaves
C.adding more pores to the roots
D.making the land unfit for the plants to grow
2.Which of the following statement does Hanqin Tian support?
A.Ozone pollution has increased 1 6 times in the past 30 years.
B.Ozone pollution has lowered plant productivity alone.
C.Plants can take in a large amount of carbon and other pollutants.
D.The toxic air has few effects on food supply in China.
3.What Can we infer from the passage?
A.Healthy foods are not available in Beijing.
B.Some kinds of plants aren’t affected by air pollution.
C.Crops in China are hard to feed its large population.
D.People should stop developing economically
4.According to the passage,the Chinese govemment should
A.care more about developing economy
B.reduce the number of cars and industries
C.continue to make more researches
D.take measures to reduce carbon emissions
5.What′S the best title of the passage?
A.Polluted air damages plants and crops
B.Air pollution is becoming more serious
C.China’s air pollution and climate changes
D.Food security in China
高三英语阅读理解中等难度题查看答案及解析
Cold weather during winter months may keep many people from leaving home and running in the open air.
However, a new study shows that the drop in temperature is a good reason to run. In fact, researchers say, running in cold weather helps improve one’s performance.
Many people say running in the winter can be difficult. Two reasons are the low temperatures and bitter winds. Yet many runners might find it easier than running in hot weather.
That could be because lower temperatures reduce stress on the body. When you run in cold weather, your heart rate and the body’s dehydration (脱水) levels are lower than in warmer conditions. The body needs less water on a cold day than in warm weather.
This information comes from sports scientists at St. Mary’s University in London. John Brewer is a professor of applied sport science at St. Mary’s.
For this study, he and other researchers put a group of people into a room they called an “environmental chamber.” The researchers then recreated summer and winter weather conditions in the room. The test subjects were asked to run 10,000 meters under both conditions. Brewer says he and his team recorded biological measurements of the runners.
“We’ve got a group of subjects into the environmental chamber, we’ve changed the conditions to replicate the summer or winter and we’ve got them to run a 10km under both of those conditions and taken various measurements on each runner while they’ve been completing their 10km.”
Brewer says every movement runners make produces heat. He explains that one way in which we lose heat is by sweating. The body loses heat through droplets of sweat. He says the body also loses heat by transporting the blood to the surface of the skin.
1.What can we know about running in winter?
A. It increases pressure of the body. B. It improves the function of body.
C. It makes your heart rate higher. D. It needs more water than in summer.
2.What can we know about the research according to the text?
A. Researchers interviewed the subjects
B. Subjects were asked to run in winter and summer.
C. Subjects built the “environmental chamber”.
D. Biological measurements of the runners were recorded.
3.Which of the following can replace the underlined word “replicate” in Paragraph 7?
A. Combine. B. Remember.
C. Copy. D. Decorate.
4.What’s the best title for the passage?
A. Environmental Chamber B. The Way of Losing Heat
C. Running in Cold Weather Improves Performance D. Biological Measurements of the Runners
高三英语阅读理解中等难度题查看答案及解析
Cold weather during winter months may keep many people from leaving home and running in the open air. However, a new study shows that the drop in temperature is a good reason to run. 1.
Many people say running in winter can be difficult. Two reasons are the low temperatures and bitter winds.2.That could be because lower temperatures reduce stress on the body. When you run in cold weather, your heart rate and the body's dehydration (脱水) levels are lower than in warmer conditions. 3.
This information comes from John Brewer, who is a professor of applied sport science at St. Mary’s. For this study, he and other researchers put a group of people into a room they called an "environmental chamber". The researchers then recreated summer and winter weather conditions in the room.4.Brewer says he and his team recorded biological measurements of the runners.
He says that the most important thing for people who run in cold conditions is to wear the right clothing. Wear gloves on your hands.5.And especially wear more than one layer of clothing to keep sweat away from your skin.
A.Yet many runners might find it easier than running in hot weather.
B. We have good reasons to run in winter.
C. Wear shoes that will keep you from falling.
D. Many feel nervous when running in the cold weather.
E. The body needs less water on a cold day than in warm weather.
F. In fact, running in cold weather helps improve one’s performance.
G. The test subjects were asked to run 10,000 meters under both conditions.
高三英语七选五中等难度题查看答案及解析
Monaco Grand Prix
The air is fresh with the heat of early summer as you arrive in the beautiful country of Monaco on the day of the race. Your______ to the Monte-Carlo neighborhood is bursting with color as classic styles of European architecture catch your eye. When you reach the race course area, you are led to the harbor where you will watch the race from the ______ of a friend’s yacht (游艇).Soon, the Formula One cars will pull onto the starting point and the race will begin.
Each of the cars in the Monaco Grand Prix is ______, but all of them are fast and modern. The race course also ______ as being complex and difficult, with a frightening hairpin (发夹)turn along a very narrow street. ______ these streets at speeds over 150 kilometers per hour, drivers must take over. Even the slightest ______ could turn a multi- million dollar car into a pile of waste. The driver who claims first place receives an award and will go down ______ as one of the world’s finest drivers.
Indianapolis 500
On race day the grandstands (大看台)are filled with excitement as you enter the Indianapolis Motor Speedway. You find your seat, ______ yourself against the harsh heat and marvel at the huge black oval (椭圆形的)track below. Moments later, a fleet of Indy Cars rolls onto the track, ______ themselves in 11 neat rows of three. The sound of 33 turning engines rings in your ears, and you cheer with the crowd as the powerful cars take off from the starting line.
Unlike Monaco Formula One cars, Indy cars are more uniform in their ______. They tend to be much longer, and reach 260 kilometers per hour. Since the drivers must race for 500 miles, the race is quite long, ______ three to five hours. The resulting wear and tear on each car is managed with short stop. The driver’s excellent team performs ______ at amazing speeds. The dangerous nature of this race requires ______ communication between the drivers and their teams. They must plan short stops ______ or the driver loses precious time and it could ______ them the race.
1.A.memory B.aim C.anxiety D.ride
2.A.comfort B.position C.bottom D.direction
3.A.colorful B.fashionable C.unique D.similar
4.A.comes out B.stands out C.turns out D.points out
5.A.Crossing B.Constructing C.Driving D.Competing
6.A.touch B.spot C.error D.hole
7.A.in history B.in advance C.in return D.in all
8.A.pushing B.drawing C.fighting D.fanning
9.A.following B.arranging C.warning D.urging
10.A.design B.preparation C.display D.regulation
11.A.timing B.extending C.delaying D.lasting
12.A.check B.maintenance C.device D.condition
13.A.short B.special C.constant D.loud
14.A.professionally B.positively C.directly D.carefully
15.A.cost B.sacrifice C.defeat D.fail
高三英语完形填空困难题查看答案及解析
-- In the countryside you can enjoy fresh air, blue sky and quiet surroundings.
--- _______ more and more retired people are escaping from the crowded city.
A. It is no wonder B. It is no doubt
C. There is no need D. There is no possibility
高三英语单项填空中等难度题查看答案及解析
Our house is on the top of the hill, and in winter the winds ________be pretty cold .
A. must B. can C. ought to D. need
高三英语单项填空中等难度题查看答案及解析
Our house is on the top of the hill, and in winter the winds ________ be very cold.
A. can B. need C. would D. shall
高三英语单项填空中等难度题查看答案及解析