You may have noticed that the world′s populat...

You may have noticed that the world′s population is not evenly distributed(分布) around our planet. There are some countries where people seem to be living nearly on top of each other because conditions are overcrowded. Then there are others where it seems that hardly anybody lives. What influences this unequal distribution of people? There are specific advantages and disadvantages of *diving in a certain area.

The two main factors that influence people`s choice of location are climate and resources. Climate is the usual weather conditions in a region. Areas that have bad weather are generally less deal as places to live in. The north and south poles at the top and bottom of the world may be beautiful in their rugged, natural way, but the disadvantage of the bitterly cold and windy conditions usually keeps people away.　 When it comes to climate, warm conditions and a normal amount of rainfall are advantages that attract people.

Natural resources are things that we get from nature that help us survive. Each region offers different resources, and therefore attracts different groups of people. People who enjoy the beach can make their living by catching and selling the ocean′s many fish and other sea creatures. Those who prefer farming can take advantage of rich soil(土壤) in valleys near rivers. Some people are willing to accept the disadvantages of the terrible conditions of deserts or mountains in order to take advantage of the resources like oil or woods.

1.The underlined part “on top of ”in the first paragraph most likely means_______.

A. very close to　　　 B. on the highest part of

C. in control of　　　 D. on the surface of

2.What are the main factors that influence the distribution of people?

A. Resources and oceans.　　 B. Climate and rivers.

C. Climate and resources.　 D. Warm conditions and rainfall.

3.The writer thinks many people don′t live near the north or south pole because ________.

A. they can′t get enough food there

B. they natural sights there don′t attract people

C. the unpleasant weather keeps them away

D. the length of nighttime is too short or too long

4.Why do people go and live in valleys near rivers?

A. The temperature isn′t too low in winter.

B. the resources like oil can bring them much money.

C. People can make their living by catching and selling fish.

D. It′s easier for people to grow plants or keep animals.

5.The purpose of the example in the last paragraph is to tell us _______.

A. people cannot survive in cold conditions

B. different resources attract different groups of people

C. People usually prefer living at the seaside to living in mountains

D. a normal amount of rainfall is necessary for people to live in the desert

高一英语阅读理解中等难度题查看答案及解析

Easy floating

If you have ever been swimming in the ocean, you may have noticed that sea water is easier to float in than pool water. Here’s why:

You’ll need

 Two clear bowls 　　  Food coloring　 Spoon　  Salt　  Two eggs

1. Fill bowls halfway with water.

2. Add 10 tablespoons of salt to one bowl, mix until it dissolves, and then add several drops of color.

3. Carefully put an egg into each bowl of water, and watch what happens.

What happens?

The egg in the plain water sinks. 　　　　　 　　　 The egg in the salt water floats.

(If the salt water egg does not float well, mix more salt into the bowl. )

The water and salt particles (粒子) in the salt water bowl are closer together than plain water particles are. They press harder against the egg than the plain water particles do and the egg floats.

1.The purpose of the experiment is to explain ________.

A. why the egg floats in the salt water

B. why people float more easily in the sea

C. how we can make the egg float in water

D. how the water and salt particles act together

2.According to the text, if the egg in the salt water doesn’t float, which is the reason?

A. The water is too hot. B. The egg is not fresh.

C. The bowl is too small. D. The salt is not enough.

3.Why does the egg float in the salt water instead of in the plain water?

A. The egg gets more pressure. B. The salt particles press harder.

C. The water particles are closer. D. The food coloring gives a force.

高一英语阅读理解简单题查看答案及解析

Many cultures around the world have a grain that is not grown or even known outside its home area. Now, a staple grain native to Ethiopia, teff, is appearing on grocery shelves in America.

Teff has been an important part of the Ethiopian diet for thousands of years. Like rice and wheat, it is a cereal grass. Teff is known for its fine grain and used mainly to make flour. Teff flour is the key ingredient in injera, the large, spongy pancakes that make up a large portion of the Ethiopian diet.

Teff was introduced to the United States by a man named Wayne Carlson, who learned about teff while doing public health work in Africa in the mid-1970s. "I came to know teff because I was eating it all the time and hosted by teff farmers. " he said. In the late 70s, Carlson returned to the U. S. , married and settled in southwest Idaho. Then he came up with an idea to introduce teff grass to his home state. " Geologically, it is very similar to Ethiopia."

Wayne and his wife Elisabeth are not farmers, nor do they want to be. So they convinced actual farmers in Idaho to grow teff on contract for them. The Carlsons milled it themselves.

Wayne went through the Washington, D. C. telephone book and looked for the names that were Ethiopian. And that is how the business slowly grew. Over time, the Teff Company has outgrown four different mills.

Rich Roseberg is a food researcher at Oregon State University. He says teff production has exploded over the past decade in the U. S. He says most teff grown in the U. S. is fed to farm animals. In Idaho, however, where the Carlsons are based, Roseberg believes more of the teff production is for human food. Teff contains lots of calcium, iron, protein and fiber. Roseberg credits Wayne Carlson for being ahead of his time.

1.How do the Ethiopians mainly use teff?

A.By eating the cereal grass. B.By using the flour made from it.

C.By adding the plant into injera. D.By mixing it with rice and wheat.

2.According to Wayne, why is it possible for teff to grow well in Idaho?

A.Idaho is located close to Ethiopia.

B.Teff is easy to survive on its own.

C.Idaho has geographic features similar to Ethiopia.

D.Teff was originally introduced to Ethiopia from Idaho.

3.What can we infer from Paragraph 5?

A.Wayne's teff did not sell well at first.

B.Wayne's teff was sold only to Ethiopians.

C.Wayne sent teff to his Ethiopian friends.

D.Wayne lost control of his Teff Company.

4.What is Rich Roseberg's attitude to Wayne introducing teff into America?

A.Worried. B.Disapproving.

C.Favorable. D.Pessimistic.

高一英语阅读理解简单题查看答案及解析

A new study gives us the warning that about thirty percent of the world's people may not have enough water by the year 2025.

A private American organization called Population Action International did the new study. It says more than three-hundred-thirty-five-million people lack enough water now. The people live in twenty-eight countries. Most of the countries are in Africa or the Middle East.

P-A-I researcher Robert Engelman says by the year 2025, about three-thousand-million people may lack water. At least 18 more countries are expected to have severe water problems. The demand for water keeps increasing. Yet the amount of water on Earth stays the same.

Mr. Engelman says the population in countries that lack water is growing faster than in other parts of the world. He says population growth in these countries will continue to increase.

The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking waters not safe. Mr. Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.

The Population Action International study gives several solutions to the water problem. One way, it says, is to find ways to use water for more than one purpose. Another way is to teach people to be careful not to waste water. A third way is to use less water of agriculture.

The report also says long-term solutions to the water problem must include controls on population growth. It says countries cannot provide clean water unless they slow population growth by limiting the number of children people have.

1.__________ are expected to have severe water problems by the year 2025

A．No countries       B．18 countries       C．46 countries       D．28 countries

2.All the following are true except____________.

A．Lack of water may cause conflict between countries

B．Egypt now has enough fresh water

C．There are solutions to the water problem

D．New industries need a lot of water

3.It can be inferred that _____________.

A．There is connection between providing clean water and slowing population growth

B．Lack of water may also result from international conflict

C．The ability of developing has nothing to do with lack of water.

D．It is not known whether diseases have something to do with lack of water

4.What is the solution to the water problem for a long time?

A．Not to waste water.                      B．Less developing industries.

C．Less international conflict.                 D．Control the population

5.The best title of the passage would be __________.

A．World Conflict                          B．Diseases and Water

C．World Water Shortage                   D．Population and Water

高一英语阅读理解中等难度题查看答案及解析

Remember that people on line may not be who they seem, because you can't see or even hear the person. It would be easy for someone to misrepresent himself/herself. Thus someone who says that “she is a 12-year-old girl.” could really be an old man.

The underlined word misrepresent means _____.

A. making a wrong judgment about       B. understanding somebody wrongly

C. giving a wrong description of               D. forming a wrong opinion about

高一英语阅读理解简单题查看答案及解析

Have you ever noticed that the more you have the more you want? Let’s face it. Thinking our life is good enough doesn’t come naturally to many people. When we have high expectations of everything in life we will run into disappointment. Only when we are aware that needs are different from desires can we live with satisfaction. Here are a few ideas to help you be happier with what you have and who you are.

Focus on what you are thankful for. Most people want things to be better than they are, or when things are going well, we forget to appreciate what we have. Learn to reflect（反映）on how much better things are than they could be. Focus on what you are thankful for. Write down 5 things you are grateful for right now.

When we hold onto regrets from decisions we have made, it can realty poison our well-being. Many people regret something they can no longer change, which ends up holding them back from moving forward in a more positive manner. What happened in the past is done and gone, so work to stay present and be mindful of the current （目前的）moment to find more joy and fulfillment（满足）.

When we use other people as the measuring stick for our personal success and quality of life we are likely to be less satisfied. Social comparisons can provide useful information when we try to learn from others, but they also hold our perspective（观点）in a discontented position. Compare yourself less with others so you can be satisfied more.

When you are focused on your big ambitions（抱负）and future goals you might elide the daily pleasures that surround you. Learn to slow down and absorb the wonder and beauty around you. Stay present and focus on the task you’re doing at the moment. Don’t let the life pass you by because you’re always on the go and distracted（分心）by ambition.

Practice looking at life through the lens of contentment（满意）and it will become more natural.

1.How can we live with contentment?

A. To change our lifestyle.

B. To have a motivation in life.

C. To give less attention to what we are grateful for.

D. To realize the difference between needs and desires.

2.What’s the main idea of Paragraph 3?

A. Make wise decisions.　　 B. Know the present situation

C. Let go of regrets.　　 D. Remember the past.

3.The underlined word “elide”（in Paragraph 5）probably means “　　　　 ”.

A. enjoy　　 B. change

C. invent　　 D. neglect

4.What should you do to put yourself in a good mood?

A. Make time for simple pleasures.　　 B. Learn from successful people.

C. Focus on your future goals.　　 D. Create chance to learn more.

高一英语阅读理解中等难度题查看答案及解析

Do you drink water that's been left sitting out overnight or even for another day? Have you noticed it tastes different?

Tap water that has been left to sit out slowly begins to acquire(获得) off taste. Many people think that this is because of microorganisms. But that's not what makes old water taste not fresh. For that we can thank carbon dioxide. After about 12 hours, tap water starts to go flat as carbon dioxide in the air starts to mix with the water in the glass, lowering its pH and giving it an off taste. But it's most likely safe to drink.

However, back to those microorganisms. If you use a dirty glass day after day, there is more of a chance of bacteria making themselves known; a risk that increases if you share the glass with another mouth as well. But assuming(假设) you use a fresh glass every few days, you probably won't have a problem unless the glass has been touched by dirty fingers, and especially if those dirty fingers went unwashed after using the bathroom.

As for plastic water bottles that have been left out in the sun or in the car, step away from the bottle, warns Dr. Kellogg Schwab, director of the Johns Hopkins University Water Institute. "A chemical called bisphenol-A, or BPA, along with other things used to make plastic can leach(过滤) into your water if the bottle heats up or sits in the sun," he explains. BPA, as you probably know, has been linked to everything from heart disease to cancer. Schwab also adds that plastic used for commercial bottled water isn't meant to be washed or refilled, so use only one time and recycle. Or don't buy them at all; use refillable water bottles instead.

1.Tap water begin to acquire an off taste because of______ .

A. BPA　　 B. carbon dioxide

C. the glass　　 D. the microorganism

2.According to Paragragh 2 , tap water that's been left sitting out for 12 hours____.

A. is still safe to drink　　 B. tastes better

C. contains few microorganisms　　 D. is most likely undrinkable

3.What should we do with plastic water bottles that have been left out in the sun or in the car?

A. Throw them away.

B. Clean them and use them again.

C. Use them after they cool down.

D. Refill them with fresh water.

4.Which of the following is true about BPA

A. It is safe for people to use.

B. It is a kind of new material.

C. It can cause great harm to people.

D. It is the main material to make plastic.

高一英语阅读理解中等难度题查看答案及解析

Do you drink water that's been left sitting out overnight or even for another day? Have you noticed it tastes different?

Tap water that has been left to sit out slowly begins to acquire(获得) off taste. Many people think that this is because of microorganisms. But that's not what makes old water taste not fresh. For that we can thank carbon dioxide. After about 12 hours, tap water starts to go flat as carbon dioxide in the air starts to mix with the water in the glass, lowering its PH and giving it an off taste. But it's most likely safe to drink.

However, back to those microorganisms. If you use a dirty glass day after day, there is more of a chance of bacteria making themselves known; a risk that increases if you share the glass with another mouth as well. But assuming(假设) you use a fresh glass every few days, you probably won't have a problem unless the glass has been touched by dirty fingers, and especially if those dirty fingers went unwashed after using the bathroom.[

As for plastic water bottles that have been left out in the sun or in the car, step away from the bottle, warns Dr. Kellogg Schwab, director of the Johns Hopkins University Water Institute. "A chemical called biphenyl-A, or BPA, along with other things used to make plastic can leach(过滤) into your water if the bottle heats up or sits in the sun," he explains. BPA, as you probably know, has been linked to everything from heart disease to cancer. Schwab also adds that plastic used for commercial bottled water isn't meant to be washed or refilled, so use only one time and recycle. Or don't buy them at all; use refillable water bottles instead.

1.Tap water begin to acquire an off taste because of______ .

A. carbon dioxide　　 B. BPA

C. the glass　　 D. the microorganism

2.According to Paragraph 2, tap water that's been left sitting out for 12 hours____.

A. contains few microorganisms　　 B. is still safe to drink

C. tastes better　　 D. is most likely undrinkable

3.What should we do with plastic water bottles that have been left out in the sun or in the car?

A. Use them after they cool down.

B. Clean them and use them again.

C. Throw them away.

D. Refill them with fresh water

4.Which of the following is true about BPA?

A. It is safe for people to use.

B. It is a kind of new material.

C. It is the main material to make plastic.

D. It can cause great harm to people.

高一英语阅读理解中等难度题查看答案及解析

Do you drink water that's been left sitting out overnight or even for another day? Have you noticed it tastes different?

Tap water that has been left to sit out slowly begins to acquire an off taste. Many people think that this is because of microorganisms(微生物). But that's not what makes old water taste not fresh. For that we can thank carbon dioxide. After about 12 hours, tap water starts to go flat as carbon dioxide in the air starts to mix with the water in the glass, lowering its pH and giving it an off taste. But it's most likely safe to drink.

However, back to those microorganisms. If you use a dirty glass day after day, there is more of a chance of bacteria making themselves known; a risk that increases if you share the glass with another mouth as well. But assuming you use a fresh glass every few days, you probably won't have a problem unless the glass has been touched by dirty fingers, and especially if those dirty fingers went unwashed after using the bathroom.

As for plastic water bottles that have been left out in the sun or in the car, step away from the bottle, warns Dr. Kellogg Schwab, director of the Johns Hopkins University Water Institute. "A chemical called bisphenol-A, or BPA, along with other things used to make plastic can leach(过滤) into your water if the bottle heats up or sits in the sun," he explains. BPA, as you probably know, has been linked to everything from heart disease to cancer. Schwab also adds that plastic used for commercial bottled water isn't meant to be washed or refilled, so use only one time and recycle. Or don't buy them at all; use refillable water bottles instead.

1.Tap water begin to acquire an off taste because of ________.

A. BPA        B. the glass        C. the microorganism        D. carbon dioxide

2.According to Paragragh 2, tap water that's been left sitting out for 12 hours ________.

A. tastes better                        B. is still safe to drink

C. contains few microorganisms            D. is most likely undrinkable

3.What should we do with plastic water bottles that have been left out in the sun or in the car?

A. Throw them away.                        B. Refill them with fresh water.

C. Use them after they cool down.        D. Clean them and use them again.

4.Which of the following is true about BPA?

A. It is safe for people to use.

B. It is a kind of new material.

C. It can cause great harm to people.

D. It is the main material to make plastic.

高一英语阅读理解中等难度题查看答案及解析

Some people fear that _____ air population may bring about changes in _____ weather around the world.

A. /; the    B. the; /   C. an; the    D. the; a

高一英语单项填空简单题查看答案及解析