Supporters of underground development say tha...

Supporters of underground development say that building down ______ building up is a good way to use the earth’s space.

A. as well as　　　　　　 B. other than

C. rather than　　　　　　 D. more than

高三英语单项填空中等难度题查看答案及解析

Li Yang, the founder of Crazy English, says that he copies it down _______ he comes to a sentence.

高三英语单项填空简单题查看答案及解析

Li Yang, the founder of Crazy English, says that he copies it down _______ he comes to a sentence.

A. unless　　 B. while　 C. because　　 D. every, time

高三英语单项填空中等难度题查看答案及解析

Public speaking is a great way of building personal development on many levels. You may want to gain confidence in front of an audience. Or you may want to join in political debate. 1.To encourage you to get out of your comfort zone and sign up to speak at a few events in the future, we’ve listed the top benefits of public speaking.

Public speaking can significantly increase your confidence. 2.Your confidence levels will grow during this process. Overcoming the fears and insecurities that accompany public speaking will benefit you not just on stage, but in everyday day life as well, whether it may be in a meeting or on a date.

Effective public speaking skills are beneficial to career advancement, as they indicate creativity, critical thinking skills, and leadership abilities. All these qualities are very valuable for the job market. They can also get you to stand out at work. 3.

When you write a speech, you have to think carefully about the best framework, persuasive strategies, and words to communicate your message to the audience. 4.You’ll learn to calmly take up an opposing view, to present your ideas. in an organized manner, and to defend your views against others.

5.It’s no secret that people throughout history have used the power to make a difference. You won’t change the world with every speech, but you can easily impact someone in some small way.

A.It’ll make you stand out in any debate.

B.This type of thinking improves your communication skills.

C.Whatever your goal is, public speaking can help you meet it.

D.You may feel nervous to find the audiences fix their attention on you.

E.You’ll learn to speak up in meetings and present yourself as a professional.

F.Connecting with audiences is a reminder that you have valuable opinions to share.

G.Public speaking is a powerful way to unite people and motivate them to take action.

高三英语七选五中等难度题查看答案及解析

--- Look! They’re       the old teaching building.

--- It’s unwise to do that.

高三英语单项填空简单题查看答案及解析

Researchers say they have developed technology that could predict heart attacks years before they happen. They report using mathematical systems to examine CT images of a patient’s heart. A CT scan uses X-rays and a computer to make detailed pictures of bones, organs and other tissue inside the body.

The new method was developed by researchers at the University of Oxford in England. A report on their study was published in the medical journal The Lancet. Also taking part in the study were teams from Germany and the US.

Most heart attacks result from a build-up of fatty tissue inside arteries（动脉）that carry blood from the heart to other areas of the body, thus blocking this flow of blood and causing a heart attack.

Currently, doctors use CT scans to learn when a sticky substance called plaque has already built up inside an artery. The new technology is designed to predict which arteries are at risk for future buildup.

The researchers reported using computers to examine CT scans to measure how much fat is present around heart arteries. That fat changes when an artery becomes affected, serving as an early warning system for heart attacks.

Charalambos, a professor at Oxford University, said he believes the research shows this method could be very effective in getting patients to take early steps to prevent future problems, adding that researchers had yet to estimate exactly how many heart attacks could be prevented. But he said he believes the technique could help identify between 20 to 30 percent of people at risk of having one.

He added that the new technology will make such predictions easier because it works together with existing CT technology. The research was based on two large, independent studies of 4,000 patients in Germany, and the US. A company with ties to Oxford University is developing a service to examine CT scans of patients around the world, Reuters reported.

1.What’s the aim of the new technology?

A. To predict ways to block fatty issues in heart arteries.

B. To provide detailed pictures of how arteries work.

C. To build computer models of the image of a heart.

D. To decide which arteries are likely to have fat built up.

2.When does a heart attack generally happen according to the text?

A. When the CT scan affects the flow of blood in the heart.

B. When fat around heart arteries blocks the flow of blood.

C. When a sticky material flows into an artery near the heart.

D. When bones and organs of the body begin to be weak.

3.What is an early warning for heart attacks?

A. A change of fat happening around heart arteries.

B. The finding of a sticky material in the blood.

C. The presence of fat around the bones and organs.

D. The aging and failure of arteries near the heart.

4.What’s the main idea of the text?

A. The harm of fat build-up to heart arteries.

B. The use of CT scans to prevent of heart attacks.

C. Research into the early warning of heart attacks.

D. The warning the body gives about heart attacks.

高三英语阅读理解中等难度题查看答案及解析

Researchers at Oxford University say they have developed a new method that could predict heart attacks years before they happen. They use mathematical algorithms(演算法)to examine CT images of a patient's heart. One report on their study has been published in the medical journal The Lancet.

Most heart attacks result from a build-up of fatty tissue inside arteries(动脉)that carry blood from the heart to other areas of the body. Too much buildup can block this flow of blood and cause a heart attack. Currently, doctors use CT scans to learn when a sticky substance called plaque has already built up inside an artery. The new technology is designed to predict which arteries are at risk for future buildup. How much fat is present around heart arteries also can be measured. That fat changes when an artery becomes inflamed(发炎), serving as an early warning system for heart attacks.

Charalambos Antoniades, a professor of cardiovascula(心血管)medicine at Oxford University, believes the research shows this method could be very effective in getting patients to take early steps to prevent future problems.

“Say your arteries are inflamed and a narrowing will be developed five years down the line. So maybe you can start preventive measures to avoid this formation of plaques,” he said. “If you are able to identify inflammation in the arteries of the heart, then you can say which arteries will cause heart attacks.”

Antoniades added that researchers had yet to estimate exactly how many heart attacks could be prevented. But he said he believes the technique could help identify between 20 to 30 percent of people at risk of having one.

He added that the new technology will make such predictions easier because it works together with existing CT technology.

1.You can identify which arteries will cause heart attacks by .

A. locating where the inflamed arteries are

B. seeing a cardiovascular doctor

C. developing a new method to predict it

D. measuring how much fat is built up

2.This passage is probably from a .

A. medical textbook　　 B. travel brochure

C. graduation paper　　 D. science journal

3.What‟s Artoniades‟ attitude towards the new method?

A. Tolerant.　　 B. Defensive.　　 C. Critical.　　 D. Favorable.

高三英语阅读理解中等难度题查看答案及解析

Scientists say they have developed a system that uses machine learning to predict when and where lightning will strike. Researchers report the system is able to predict lightning strikes up to 30 minutes before they happen within a 30-kilometer area.

Lightning is a strong burst of electricity in the atmosphere. Since it carries an extremely powerful electrical charge, it can be destructive and deadly. European researchers have estimated that between 6,000 and 24,000 people are killed by lightning worldwide each year. For this reason, climate scientists have long sought to develop methods to predict lightning.

The system tested in the experiments uses a combination of data from weather stations and machine learning methods. The researchers developed a prediction model that was trained to recognize weather conditions that were likely to cause lightning.

The model was created with data collected over a 12-year period from 12 Swiss weather stations in cities and mountain areas. The data, related to four main surface conditions: air pressure, air temperature, relative humidity and wind speed, was placed into a unique machine learning algorithm (算法), which compared it to records of lightning strikes. Researchers say the algorithm was then able to learn the conditions under which lightning happens.

The researchers test-ran the system several times. They found that the system made predictions that proved correct almost 80 percent of the time. “It can now be used anywhere,” the Swiss Federal Institute of Technology said in a statement.

The researchers plan to keep developing the technology in partnership with a European effort that aims to create a lightning protection program. The effort is called the European Laser Lightning Rod project. Scientists working on the project are experimenting with a laser technology that could someday control lightning activity, transferring lightning charges from clouds to the ground. They hope that such technology can one day be used as protection against lightning strikes. Possible uses could be at stations, airports or places where large crowds gather.

1.Why was the system developed?

A.To meet kids’ curiosity about lightning.

B.To show the power of lightning.

C.To keep track of lightning deaths.

D.To protect people from lightning.

2.What is special about the system?

A.It was based on a number of samples worldwide.

B.It adopted a different machine learning algorithm.

C.It used an effective method of collecting data.

D.It required low cost of predicting lightning.

3.What will the researchers do next with the laser technology?

A.Monitor lightning activity. B.Prevent the occurrence of lightning.

C.Direct energy from lightning. D.Generate electricity with lightning.

4.What can be a suitable title for the text?

A.A System of Controlling Lightning B.A Method of Forecasting Lightning

C.A Theory of Employing Lightning D.A Model of Creating Lightning

高三英语阅读理解中等难度题查看答案及解析

Scientists say they have developed a system that uses machine learning to predict when and where lightning will strike. The research was led by engineers from the Swiss Federal Institute of Technology in Lausanne, Switzerland.

Lightning is a strong burst of electricity in the atmosphere. It can strike between clouds or between a cloud and the ground. Since lightning carries an extremely powerful electrical charge, it can be destructive and deadly. It is difficult to know exactly how many people die of lightning-related causes. European researchers have estimated that between 6,000 and 24,000 people are killed by lightning worldwide each year. The strikes can also cause power failure, destroy property, damage electrical equipment and start forest fires.

For this reason, climate scientists have long sought to develop methods to predict and control lightning. The system tested in the experiments uses a combination of data from weather stations and machine learning methods. The researchers developed a prediction model that was trained to recognize weather conditions that were likely to cause lightning. The model was created with data collected over a 12-year period from 12 Swiss weather stations in cities and mountain areas. The data related to four main surface conditions: air pressure, air temperature, relative humidity (湿度) and wind speed. The atmospheric data was placed into a machine learning algorithm (计算程序), which compared it to records of lightning strikes. Researchers say the algorithm was then able to learn the conditions under which lightning happens.

“Once trained, the system made predictions that proved correct almost 80 percent of the time,” the Swiss Federal Institute of Technology said in a statement. “It can now be used anywhere.”

Amirhossein Mostajabi, a PhD student at the institute, said current systems for gathering such data are slow and complex and require costly collection equipment like radar or satellites. “Our method uses data that can be obtained from any weather station,” he said. “This will improve data collection in very remote areas not covered by radar and satellite or in places where communication systems have been cut,” he added.

The researchers plan to keep developing the technology in partnership with a European effort that aims to create a lightning protection system. Scientists working on the Paris-based project are experimenting with a laser technology that could someday control lightning activity. The idea is that powerful, ground-based lasers can be positioned in the sky to direct energy from lightning.

1.What does Paragraph 2 mainly focus on?

A.The cause of lightning. B.The forming process of lighnting.

C.The destruction of lightning. D.The difficulty to count the deaths.

2.Which is the correct order of how the system works?

① develop a prediction model.

② learn to recognize weather conditions.

③ collect related data.

④ input the data onto the computer.

⑤ make predictions.

A.①→②→③→④→⑤ B.③→④→①→②→⑤

C.①→②→④→③→⑤ D.③→①→②→⑤→④

3.What’s the Swiss Federal Institute of Technology’s attitude toward the system?

A.Satisfied. B.Doubtful.

C.Negative. D.Neutral.

4.The advantage of the new system for collecting data lies in its　　　　 .

A.accuracy B.efficiency

C.wide coverage D.reliability

5.What does the Paris-based project aim to do?

A.Identify lighting. B.Predict lighting.

C.Stop lighting. D.Control lighting.

高三英语阅读理解中等难度题查看答案及解析

With the development of science and technology, the prices of TV sets have ________.

A．gone down　                      B．went down

C．brought down　                 D．been gone down

高三英语单项填空中等难度题查看答案及解析