What they cannot say is _____ when and where ...

What they cannot say is _____ when and where the next earthquake will strike.

A.appropriately B.anxiously C.arbitrary D.precisely

高三英语单项填空简单题查看答案及解析

People become quite illogical when they try to decide what can be eaten and what cannot be eaten. If you lived in the Mediterranean, for instance, you would consider octopus (章鱼) a great delicacy. You would not be able to understand why some people find it repulsive. On the other hand, your stomach would turn at the idea of frying potatoes in animal fat --the normally accepted practice in many northern countries. The sad truth is that most of us have been brought up to eat certain foods and we stick to them all our lives.

No creature has received more praise and abuse than the common garden snail(蜗牛). Cooked in wine, snails are a great luxury in various parts of the world. There are countless people who, ever since their early years, have learned to associate snails with food. My friend, Robert, lives in a country where snails are not liked. As his flat is in a large town, he has no garden of his own. For years he has been asking me to collect snails from my garden and take them to him.

The idea never appealed to me very much, but one day, after heavy shower, I happened to be walking in my garden when I noticed a huge number of snails taking a stroll on some of my prized plants. Acting on a sudden impulse, I collected several dozen, put them in a paperbag,and took them to Robert. Robert was delighted to see me and equally pleased with my little gift. I left the bag in the hall and Robert and I went into the living room where we talked for a couple of hours. 1 had forgotten all about the snails when Robert suddenly said that I must stay to dinner. Snails would, of course, be the main dish. I did not fancy the idea and I reluctantly followed Robert out of the room. To our dismay, we saw that there were snails everywhere: they had escaped from the paper bag and had taken complete possession of the hall! I have never been able to look at a snail since then.

1. The underlined word “repulsive” in Paragraph 1 most probably means 　　　　　 .

A.disgusting 　　 B. pleasant

C. acceptable 　　 D. delicious

2. We can infer from Paragraph 3 that when collecting the snails, the author 　　　　　 .

A.was glad that he could share them with his friend.

B.was angry because they might damage his beloved plants.

C.was excited about being able to give his friend a surprise.

D.was depressed because it was hard to catch them all.

3. The author finds that snails 　　　　　 .

A. are as delicious as octopus.

B. are disliked in his hometown.

C.are the most controversial food.

D. are as popular as fried potatoes.

4.The best title for the passage might be “　　　　　 ”

A. One Man’s Meat is Another Man’s Poison

B. Foods and Cultures

C. Snail and Octopus

D. People Are Illogical in Front of Delicacies

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

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

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 outages, destroy property, damage electrical equipment and start forest fires. For these reasons, climate scientists have long sought to develop methods to predict and control lightning. In the United States and other places, ground-based sensing devices are used to identify strikes as they happen. But, no system has been created to effectively predict lightning.

The system tested in the experiments used 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.

The atmospheric, data was placed into a 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.

Amirhossein Mostajabi is a PhD student at the institute who led the development of the method. He 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,” Mostajabi 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. The effort is called the European Laser Lightning Rod project.

1.Why have climate scientists tried to predict and control lighting?

A.To collect relative data.

B.To reduce the destruction lightning has been causing.

C.To create a scientific system.

D.To do research in relation to machine learning.

2.The four mentioned surface conditions include all the following EXCEPT________.

A.air pollution

B.wind speed

C.relative humidity

D.air temperature

3.What does the underlined word “it” in paragraph 5 refer to?

A.Lighting.

B.The system being tested.

C.The atmospheric data.

D.The machine learning algorithm.

4.What can we learn about Mostajabi from the passage?

A.He developed the method and the system himself.

B.He thinks the current systems are too slow and simple.

C.He is a professor at the Swiss Federal Institute of Technology.

D.He believes their system does much better in data collection.

5.Which of the following is the main idea of the passage?

A.Lightning Causes Huge World Wide Damage.

B.Scientists Test Systems to Predict Lightning.

C.Machine Learning Has Made New Breakthrough.

D.A New Approach Has Improved Data Collection.

高三英语阅读理解中等难度题查看答案及解析

“Well, what did I say？Buck’s a real fighter, all right,” said Francois the next morning when he discovered that Spitz had disappeared and that Buck was covered in blood．

“Spitz fought like a wolf,” said Perrault, as he looked at the bites all over Buck．

“And Buck fought like ten wolves,” answered Francois. “And we'll travel faster now. No more Spitz，no more trouble.”

Francois started to harness the dogs. He needed a new lead-dog, and decided that Solleks was the best dog that he had. But Buck jumped at Solleks and took his place．

“Look at Buck！” said Francois，laughing. “He's killed Spitz，and now he wants to be lead-dog．Go away, Buck！”

He pulled Buck away and tried to harness Solleks again．Solleks was unhappy too. He was frightened of Buck, and when Francois turned his back，Buck took Solleks’ place again. Now Francois was angry．

“I'll show you! ” he cried，and went to get a heavy club from the sledge．

Buck remembered the man in the red coat，and moved away. This time，when Solleks was harnessed as lead-dog，Buck did not try to move in．He kept a few meters away and circled around Francois carefully. But when Francois called him to his old place in front of Dave, Buck refused．He had won his fight with Spitz and he wanted to be lead－dog．

For an hour the two men tried to harness him．Buck did not run away，but he did not let them catch him．Finally，Francois sat down，and Perrault looked at his watch．It was getting late. The two men looked at one another and smiled. Francois walked up to Solleks，took off his harness， led him back and harnessed him in his old place．Then he called Buck. All the other dogs were harnessed and the only empty place was now the one at the front. But Buck did not move．

“Put down the club,” said Perrault．

Francois dropped the club, and immediately Buck came up to the front of the team．Francois harnessed him, and in a minute the sledge was moving．

Buck was an excellent leader. He moved and thought quickly and led the other dogs well. A new leader made no difference to Dave and Solleks; they continued to pull hard．But the other dogs had had an easy life when Spitz was leading．They were surprised when Buck made them work hard and punished them for their mistakes. Pike，the second dog，was usually lazy；but by the end of the first day he was pulling harder than he had ever pulled in his life. The first night in camp Buck fought Joe，another difficult dog，and after that there were no more problems with him．The team started to pull together，and to move faster and faster．

“I've never seen a dog like Buck!” cried Francois, “Never! He's worth a thousand dollars. What do you think, Perrault? ”

Perrault agreed．They were moving quickly，and covering more ground every day. The snow was good and hard，and no new snow fell．The temperature dropped to 45°C below zero, and didn't change．

This time there was more ice on the Thirty Mile River, and they crossed in a day．Some days they ran a hundred kilometers，or even more. They reached Skagway in fourteen days; the fastest time ever．

1.The writer mentioned “the man in the red coat” in the passage to show that____.

A．the man in the red coat once beat Buck severely with a club.

B．Buck remembered Francois was the man in the red coat.

C．the man in the red was quite friendly to Buck in his memory.

D．Buck remembered Francois was a friend of the man in the red coat.

2. Why did Buck fight Joe the first night in camp?

A．He wanted to get rid of Joe.

B．He wanted to make some trouble.

C．He was interested in fighting with others.

D．He wanted to teach Joe a lesson.

3. According to the passage, which of the following is true about the other dogs?

A．Dave stood in the second position in the team.

B．Joe was always quite lazy in the team.

C．Pike was a trouble-maker in the team.

D．Solleks was hard-working in the team.

4. What did Francois think of Buck at the end of the passage?

A．annoying          B．admirable         C．aggressive         D．average

5. Which of the following best shows that Buck was an excellent leader?

A．He killed Spitz at the beginning of the story.

B．He punished them for their mistakes.

C．He fought Joe the first night in camp.

D．They reached Skagway in the fastest time ever.

6.Which of the following is the best title for the passage?

A．The Fight with Dogs B．The New Lead-dog   C．A Dog Called Buck   D．A Real Fighter

高三英语阅读理解中等难度题查看答案及解析

—What did our art teacher say just now?

—He hopes when we come back to school next week, we__　　　 the manual art and have something to present.

A.has done B.are doing C.will be doing D.will have done

高三英语单项填空中等难度题查看答案及解析

Men usually go straight to ____ they want and leave quickly when shopping.

A. what                       B. which            C. where           D. that

高三英语单项填空简单题查看答案及解析

144. The reason why the two _____ cannot speak _____ language is that they were born in America and were brought up in a Japanese family.

高三英语单项填空简单题查看答案及解析

Men usually go straight to _____ they want and leave quickly when shopping.

高三英语单项填空简单题查看答案及解析