If you want to cook something quickly, you he...

If you want to cook something quickly, you heat it from both sides.That's what's happening to the West Antarctic ice sheet(南极洲西部冰盖)．A new study reveals that the area under the ice sheet is far hotter than previously thought, fed by an unexpected flow of geothermal energy (地热能)．While the CO2　 we send out heats the atmosphere above the continent, earth is melting its ice from below.

If you were to drill (钻)deep at some place on the continents, you would find that the temperature increases about 25℃ for every kilometer deep into the hole on average.Scientists call this the geothermal gradient (地热梯度)．Until recently, no one had drilled deeply enough through the West Antarctic ice to determine the geothermal gradient underground.For the new study, researchers drilled all the way through the ice and into the mud.They found that the geothermal gradient was about 200℃，which is several times the global average on continents.Few predicted this result, although it had been showed that the earth below the West Antarctic ice is unusually hot.

Even with the new discovery, though，we still don't know exactly where the heat is coming from.One interesting possibility is volcanoes, which are under the ice.As recently as 2013, scientists were still discovering volcanoes under the ice in the area, and there may be many more.

Some people say that these volcanoes, rather than man­made climate change, are responsible for melting the area's ice.While it's true that heat coming from within the earth, including heat related to volcanoes, makes the melting faster, it is just one contributor to the loss of the West Antarctic ice sheet－not the main cause.Today's study could help us understand how the whole system, including global warming, is melting the ice.

1.What's happening to the West Antarctic ice sheet?

A. The ice sheet is getting hotter and hotter.

B. It is heated from below rather than from above.

C. The ice sheet is producing a new kind of energy.

D. It is melting from both sides.

2.What can be learned from the second paragraph?

A. It was the first time that researchers had tried to measure geothermal gradients.

B. The geothermal gradient showed where the heat came from.

C. The result was beyond the researchers' expectations.

D. Researchers never knew the earth under the West Antarctic ice was hot.

3.The author would probably agree that ________.

A. the new discovery is unhelpful without a certain conclusion

B. no volcano has been found to support the

researchers' idea

C. volcanoes are the most important reason for the melting of the ice

D. global warming is surely one reason for the melting of the ice

4.What's the main idea of the passage?

A. The West Antarctic ice sheet is in danger.

B. Researchers are trying to stop global warming.

C. The West Antarctic ice sheet's melting will bring terrible consequences.

D. It has been known how to stop the melting of the West Antarctic ice sheet.

高一英语阅读理解中等难度题查看答案及解析

If you want to keep healthy, you should have good habits. What is a habit? It is something we do very often. We don’t even think when we do it. It has become a part of our lives.

“Early to bed, early to rise makes a man healthy, wealthy and wise.” This is an old English saying. Do you know what it means? It means that we must go to bed early at night and get up early in the morning. If we do, we shall be healthy, rich and clever.

Is this true? Perhaps it is. We know the body must have enough sleep. Boys and girls need eight or nine hours’ sleep every day.

Some people go to bed late at night and get up late in the morning. This is a very bad habit. Then you will not think or do your work well. Of course, you can’t be healthy, wealthy or wise.

When we get up early in the morning, we can go out and do morning exercises. Exercise means doing things with the body. Walking, running jumping, swimming, and playing ball games are all exercise. If we don’t exercise, our body will become weak.

Exercise helps the blood (血液) to move around inside our body. Blood takes food to all parts of our body.

Our body also needs air to breathe. Without air, we will die. We must have lots of clean fresh air if we want to be healthy. That is why many people like to go out to do morning exercise.

1.From the passage we know that it is good for our health to ____ .

2.How long should young boys and girls need to sleep a day?

3.If we want to keep healthy, we must ____ .

4.Which of the following habits is NOT GOOD?

高一英语阅读理解中等难度题查看答案及解析

If you want to keep healthy, you should have good habits. What is a habit? It is something we do very often. We don’t even think when we do it. It has become a part of our lives.

“Early to bed, early to rise makes a man healthy, wealthy and wise.” This is an old English saying. Do you know what it means? It means that we must go to bed early at night and get up early in the morning. If we do, we shall be healthy, rich and clever.

Is this true? Perhaps it is. We know the body must have enough sleep. Boys and girls need eight or nine hours’ sleep every day.

Some people go to bed late at night and get up late in the morning. This is a very bad habit. Then you will not think or do your work well. Of course, you can’t be healthy, wealthy or wise.

When we get up early in the morning, we can go out and do morning exercises. Exercise means doing things with the body. Walking, running jumping, swimming, and playing ball games are all exercise. If we don’t exercise, our body will become weak.

Exercise helps the blood (血液) to move around inside our body. Blood takes food to all parts of our body.

Our body also needs air to breathe. Without air, we will die. We must have lots of clean fresh air if we want to be healthy. That is why many people like to go out to do morning exercise.

1.From the passage we know that it is good for our health to ____ .

2.How long should young boys and girls need to sleep a day?

3.If we want to keep healthy, we must ____ .

4.Which of the following habits is NOT GOOD?

5. Which sport is NOT mentioned in the passage?

高一英语阅读理解简单题查看答案及解析

If you want to keep healthy, you should have good habits. What is a habit? It is something we do very often. We don’t even think when we do it. It has become a part of our lives.

“Early to bed, early to rise makes a man healthy, wealthy and wise.” This is an old English saying. Do you know what it means? It means that we must go to bed early at night and get up early in the morning. If we do, we shall be healthy, rich and clever.

Is this true? Perhaps it is. We know the body must have enough sleep. Boys and girls need eight or nine hours’ sleep every day.

Some people go to bed late at night and get up late in the morning. This is a very bad habit. Then you will not think or do your work well. Of course, you can’t be healthy, wealthy or wise.

When we get up early in the morning, we can go out and do morning exercises. Exercise means doing things with the body. Walking, running jumping, swimming, and playing ball games are all exercise. If we don’t exercise, our body will become weak.

Exercise helps the blood (血液) to move around inside our body. Blood takes food to all parts of our body.

Our body also needs air to breathe. Without air, we will die. We must have lots of clean fresh air if we want to be healthy. That is why many people like to go out to do morning exercise.

1 From the passage we know that it is good for our health to ____ .

A. eat a lot         B. go to bed early   C. get up late      D. go to bed late

2 How long should young boys and girls need to sleep a day?

A. More than ten hours                B. Over eleven hours.

C. Less than seven hours.             D. Eight hours or so.

3 If we want to keep healthy, we must ____ .

A. eat more food                         B. sleep more     C. get up late D. take enough exercise

4 Which of the following habits is NOT GOOD?

A. Don’t go to bed until twelve o’clock..

B. Take a walk after supper.

C. Run in the open air early in the morning.

D. Climb hills for half an hour early in the morning.

5 Which sport is NOT mentioned in the passage?

A. Jumping.       B. Swimming.    C. Riding.          D. Running.

高一英语阅读理解简单题查看答案及解析

If you want to travel from Xi’an to Chengdu by train, it will take about 16 hours. But starting this month, the new Xi’an-Chengdu high-speed railway will shorten this travel time to three hours.

The 643-kilometer line is China’s first high-speed railway to run through the Qinling Mountains, which form a natural boundary (分界线) between China’s north and south. With a speed of 250 km per hour, it’s also the first mountain-heavy train line to provide a 4G network. Along the way, the train passes through two areas for rare (稀有) wild animals — one for pandas and the other for crested ibises (朱鹮).

To reduce the railway’s influence on the animals, workers and experts have designed and built the railway to be environmentally friendly. There were 345 wild pandas living in the Qinling Mountains. China currently has 1,864 wild pandas in total, according to the Xinhua News Agency.

To avoid disturbing the pandas, the railway was designed to run through tunnels (隧道) within the area. Protective shields (防护屏) are placed near the entrance of each tunnel to stop animals from going in.

To protect the thousands of crested ibises that fly near one part of the railway, protective nets have been set up to make sure the birds will not fly into a train.

The nets are about 32 km long and 4 meters high. Experts tested different shapes and materials for building the nets before making their final choice.

1.From this month, it will take ________ to travel from Xi’an to Chengdu by the high speed train.

A. 16 hours　　 B. 13 hours　　 C. 3 hours　　 D. 1 hour

2.Which of the following is TRUE about the new Xi’an-Chengdu railway?

A. It is China’s first high-speed railway.

B. It runs through the Qinling Mountains.

C. It is the best mountain-heavy train line.

D. The train passes through many areas for rare wild animals.

3.Why did people build the railway to be environmentally friendly?

A. To save money and energy.　　 B. To avoid damaging the mountains.

C. To avoid harming wild animals.　　 D. To help the train run through tunnels quietly.

4.What are experts using to stop birds from flying into the train?

A. Tunnels.　　 B. Tracks.　　 C. Protective shields.　　 D. Protective nets.

5.What is the passage about?

A. Xi’an Chengdu high-speed railway.　　 B. How to protect pandas and crested ibises.

C. Qinling Mountains.　　 D. Protective shields and nets.

高一英语阅读理解中等难度题查看答案及解析

If metal is heated and then cooled very quickly, 　　 ,put in cold water, it will become very hard but will break easily.

A. if so　　 B. to give an example

C. in other words　　 D. in conclusion

高一英语单项填空简单题查看答案及解析

If metal is heated and then cooled very quickly, ________, by dipping in cold water, it will be very hard but will break easily.

高一英语单项填空简单题查看答案及解析

If you want to get something done, you might want to put your mobile phone back in your pocket. Researchers have found that the mere presence of a phone is distracting (分心) — even if it is not your own. And the devices (设备) are likely to distract you, even if they are not ringing or “pinging” with text messages. People asked to carry out electronic tests of their attention spans were found to perform worse when a mobile phone was present than other people performing in the presence of a paper notepad.

Scientists from Hokkaido University in Japan said that their findings show that it is harder to concentrate when one of the electronic devices is present. The effect was most marked on people who are not regular users of phones. In tests on 40 undergraduates. Associate Professor Junichiro Kawahara and a colleague divided the subjects into two groups — one asked to carry out tests in the presence of an Apple iPhone next to a computer monitor, and the other in the presence of a notebook.

The test involved asking the participant to search for a particular character among a mess of other characters on the screen. Researchers measured the time it took to find the target. The results of the experiment found that those with the mobile phone took longer to find the character, indicating that participants were automatically distracted by the presence of the phone. The researchers suggest that people are drawn to the presence of a mobile phone, although there are individual differences in how one attempts to ignore it. In conclusion. Professor Kawahara said. “The mere presence of a mobile phone was a distraction among infrequent internet users.”

Another finding is that listening to one half of a mobile phone conversation also distracts people, and other studies have found that placing a mobile phone in view has a negative impact on the quality of face-to-face communications. Holding a mobile phone makes you less likely to get a fair hearing from others.

1.What is the first paragraph mainly about?

A. A mobile phone won’t distract people unless it’s ringing.

B. People find it hard to concentrate if their phones are present.

C. Text messages distract people even if phones are power off.

D. A paper notepad can help people record much information.

2.Who will be affected most according to the findings?

A. People irregularly using phones.

B. People regularly using phones.

C. People usually using notepads.

D. People always using computers.

3.In a face-to-face communication, what is the effect of putting a mobile phone in sight?

A. It makes listeners feel much awkward.

B. It causes other people to lose respect for you.

C. It reduces people’s attention to what they are listening to.

D. It makes the air of the conversation more pleasant.

4.What can we learn from the text?

A. People perform worse with a mobile phone at hand.

B. Mobile phones do a lot of damage to people’s health.

C. People working with mobile phones will do very well.

D. Phones should be banned in all schools and universities.

高一英语阅读理解中等难度题查看答案及解析

You may have done something wrong, but now you're willing to make things right. 1. If you want to make sure that your apology is effective and doesn’t cause even more hurt, follow the advice below to write a fantastic apology.

State what your letter is about. It’s a good idea to begin by letting them know that this letter is an apology. If you don’t want them to be confused about why you’re writing or what you’re going to say, say something like: “2.”.

State your mistake. Now that you’re apologizing, say what you’re apologizing for and why it was incorrect. 3.. By fully putting it out there in the open, the person that you’re apologizing to will know that you do really understand what you did.

4. This is one of the most important parts of an apology but can be the hardest to say. What you do need to do is admit your responsibility for your mistake openly and without reservation(保留). You might have had good reasons for doing what you did but that shouldn’t keep you from saying that your actions caused someone to get hurt.

Offer a solution that will lead to change. Just saying that you’re sorry isn’t really enough. What really gives an apology some power is finding a way to solve the problem in the future. 5.. When you offer a plan for change and how you’re going to go about it, this shows the person that you’re really serious about making the situation better.

A. I’m sorry if your feelings got hurt.

B. I want to write you a letter to apologize.

C. Accept responsibility.

D. Be very exact and descriptive.

E. An apology letter is a great way to start making amends(修补)for a mistake.

F. It is never too late to make an apology.

G. This is better, even, than just saying that it will never happen again.

高一英语七选五中等难度题查看答案及解析

If you ______, you agree to do something that you do not want to do.

A. give up　　　　　　 B. give in

C. give away　　　　　 D. give out

高一英语单项填空中等难度题查看答案及解析