Let's face it. No one drinks diet sodas for t...

Let's face it. No one drinks diet sodas for the taste. People drink diet sodas in the hope that it will help them lose weight or at least keep them from gaining it. Yet it seems to have exactly the opposite effect, according to a new study.

Researchers from the University of Texas said those who drank two or more diet sodas a day had waist size increases that were six times greater than those who didn't drink diet sodas. “What we saw was that the more diet sodas a person drank, the more weight they were likely to gain,” said Sharon Fowler.

The study was based on data from 474 participants in a large, ongoing research project, where the participants were followed for nearly 10 years.

While the findings are surprising，they also offer some explanations.

Nutrition expert, Melanie Rogers, who works with overweight patients in New York, has found that when patients are switched from regular to diet sodas, they don't lose weight at all. “We weren't seeing weight loss necessarily, and that was confusing to us,” said Rogers.

So why would diet soda cause weight gain? No one knows for sure yet，but it could be that people think they can eat more if they drink diet sodas, and so over－compensate(弥补) for the missing calories.

A related study found some sweeteners (甜味剂) raised blood sugar levels in some mice. “Data from this and other potential studies suggest that the promotion of diet sodas and artificial sweeteners may be risky,” said Helen P. Hazuda, professor at School of Medicine of the University of Texas. “They may be free of calories, but not of consequences.”

1.People drink diet sodas to________.

A. enjoy its taste　　　　 B. stay in fashion

C. achieve weight loss　　 D. gain more energy

2.We can learn from the passage that________.

A. regular sodas make people lose more weight

B. diet soda drinkers tend to eat more food

C. diet sodas do help reduce calories

D. most blood diseases come from diet sodas

3.The underlined word “They” in the last paragraph probably refers to“________”.

A. sweeteners

B. diet sodas and artificial sweeteners

C. sodas

D. diet soda drinkers and sweetener takers

高一英语阅读理解中等难度题查看答案及解析

Let’s face it. No one drinks diet sodas for the taste. People drink diet sodas in the hope that it will help them lose weight or at least keep them from gaining it. Yet it seems to have exactly the opposite effect, according to a new study.

Researchers from the University of Texas said those who drank two or more diet sodas a day had waist size increases that were six times greater than those who didn’t drink diet sodas. ＂What we saw was that the more diet sodas a person drank, the more weight they were likely to gain,＂said Sharon Fowler.

The study was based on data from 474 participants in a large, ongoing research project, where the participants were followed for nearly 10 years.

While the findings are surprising, they also offer some explanations. Nutrition expert, Melanie Rogers, who works with overweight patients in New York, has found that when patients are switched from regular to diet sodas, they don’t lose weight at all. ＂We weren’t seeing weight loss necessarily, and that was confusing to us＂, said Rogers.

So why would diet soda cause weight gain? No one knows for sure yet, but it could be that people think they can eat more if they drink diet sodas, and so over-compensate for the missing calories.

A related study found some sweeteners (甜味剂) raised blood sugar levels in some mice. ＂Data from this and other potential studies suggest that the promotion of diet sodas and artificial sweeteners may be risky, said Helen P. Hazuda, professor at the University of Texas’s school of medicine. ＂They may be free of calories, but not of consequences.＂

1.People drink diet sodas to ____________.

A. enjoy its taste B. stay in fashion

C. achieve weight loss D. gain more energy

2.The new study suggests that drinking diet sodas ____________.

A. causes people to become heavier B. helps people to be healthier

C. makes people much thinner D. offers people more calories

3.We can learn from the passage that ____________.

A. regular sodas make people lose more weight B. diet soda drinkers tend to eat more food

C. diet sodas do help reduce calories D. most blood diseases come from diet sodas

4.The underlined word ＂They＂ in the last paragraph probably refers to ＂____________＂.

A. sweeteners B. diet sodas and artificial sweeteners

C. sodas D. diet soda drinkers and sweetener takers

高一英语阅读理解中等难度题查看答案及解析

What does fizz (气泡) taste like? In Bubbly (多泡的)drinks such as sodas, tiny bubbles give the drink a lift--- and have a distinct taste, In a new study on mice, scientists have connected that fizzy-taste feeling to the ability to taste sourness, such as that of oranges or vinegar.

Scientists first thought the taste of bubbles came from the bubbles bursting on the tongue, but now ate starting to think differently. Charles Zuker, of Columbia University, and his team studied the nervous system of mice to understand how the tongue tastes carbon dioxide, which is the gas that makes up the bubbles.

Animals, including human beings, are able to detect different tastes by using taste buds(味蕾) which pick up tastes in the mouth, and then send them to the brain. In the experiment, different groups of mice were genetically engineered to be missing one of the senses involved in taste. “Genetically engineered” means the researchers were able to turn off the switches for certain senses by changing the genes responsible for taste. The mice in one group could not taste sweet; another, sour; the third, bitter, and the fourth, salt. When the scientists gave carbon dioxide to the mice, the nervous systems of all the mice responded to the gas, except those of the mice that could not taste sour.

This shows that the taste of the bubbles must be sour, and that by turning off the ability of the mice to taste sour, the scientists also turned off their ability to taste carbon dioxide. When they studied the cells that detect sourness, the researchers found a protein attached to the cells that is important to the process of tasting carbon dioxide. When carbon dioxide comes into contact with this protein, the protein knocks off particles called protons. These protons(质子), in turn, travel to the brain, which says ,” Hey! That’s a taste!”

It may seem like a lot of work to get from a can of soda to a taste, but the science of the senses is anything but simple, “  Taste is a challenging system to study,” one researcher says.

1. What is the most important function of the bubbles?

A. To look interesting .                   B. To make drinks taste good.

C. To make drinks funny.                D. To produce a lot of fizz.

2.From the experiment the researchers learned that______.

A. sourness has nothing to do with the taste of bubbles.

B. there is a connection between sourness and bubbles.

C. the taste of bubbles is better if it’s less sour.

D. most mice cannot taste carbon dioxide.

3. It can be inferred from the passage that ________.

A. the taste of bubbles is produced by the bubbles bursting on the tongue.

B. the nervous systems of mice show how the tongue tastes carbon dioxide.

C. taste seems simple but is very complex to research.

D. nerve cells sending signals to the brain is the first step in tasting something.

4. Which of the following would be the best title for the passage?

A. Nervous Systems Understand How the Tongue Tastes.

B. The Process of Taste

C. The taste of Bubbles.

D. Different Animals Detect Different Tastes.

高一英语阅读理解简单题查看答案及解析

语法填空

When you are thirsty, you can drink some green tea. It tastes good and it’s very healthy. The Chinese 1.(know) about the benefits of green tea since ancient times and they use 2.to treat everything from headaches to depression. They have 3.(actual) been using green tea as a medicine for over 4, 000 years.

Nowadays, there is scientific evidence of the health benefits of green tea. According to one study 4.(publish) in a cancer research journal, drinking green tea 5.(reduce) the risk of some types of cancer in Chinese men and women 6.nearly sixty percent. USA researchers have also found that green tea may prevent the 7.(grow) of cancer cells. There is also new evidence 8.green tea can help to destroy bacteria in our bodies. It is especially effective at getting rid of the bacteria on your 9.(tooth) and keep them healthy!

As the Chinese proverb goes, it is 10.(good) to go without food for three days, than without tea for one. So you should definitely try a cup of green tea.

高一英语语法填空中等难度题查看答案及解析

Anne sat with her feet up on the couch, drinking a soda. She heard footsteps by the front door. Brenda was right one time, as usual. Never a minute early or late—for her, everything was exact.

Anne placed her feet on the floor, reaching for the remote, and turned off the television. She knew Brenda would demand her complete attention. She knew Brenda would hand up her coat in the closet by the door (third hanger from the left) and then head to the kitchen for her daily inspection (exact seven steps). She knew this because they had been roommates for six months. Taking a deep breath, she thought about what she would say to Brenda. She waited and watched from her spot on the couch.

A moment later, Brenda stepped into the kitchen and surveyed the scene. Anne watched her expression, watched her eyes focus on the sink, and watched her face harden when she saw the dishes piled high. Pointing to the dishes, Brenda said disappointedly, ''I don't believe what I’m seeing. I thought we agreed to share the responsibilities. I thought it was your turn to clean the kitchen this week. ''

''I haven't got to them yet, '' Anne replied. ''I've been really busy. Relax. I've got all night. ''She walked into the kitchen and added her empty glass to the top of the pile.

Brenda fumed. ''You know I'm having company tonight! Somehow I thought you would have done your share in the kitchen. If we want to remain roommates, things have to change. ''

The phone rang, and Anne started to answer it.

Brenda said in the background, ''Tell them to call back; we need to settle this now. I told you I’m having company soon. ''

Anne ignored Brenda's comment and continued to engage in conversation with a good friend of hers. ''Did I ever tell you about the time when…''

1.Why did Brenda get angry?

A.Because Anne was unfriendly. B.Because she had a bad day at work.

C.Because Anne didn't do her share. D.Because Anne was very lazy.

2.Why didn't Anne do the dishes?

A.She had just arrived home. B.She wanted to start a fight.

C.She was too busy to do the dishes. D.She wanted Brenda to do the dishes.

3.Which of the following suggests that Anne doesn't intend to shoulder her share of the responsibilities?

A.She turns off the television. B.She watches Brenda coming.

C.She says she's been really busy. D.She talks on the phone with a good friend.

4.The writer implies in the passage that ___________

A.Anne purposely decided not to do the dishes in an act of rebellion.

B.Anne would sit down and settle the issue with Brenda after Brenda after the call.

C.Brenda would have to do the dishes herself.

D.Brenda would move out.

高一英语阅读理解中等难度题查看答案及解析

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

---Isn’t she going on ______ diet?

---No. She still sticks to ______ rich and heavy one.

A. the; the　　　　 B. a; a

C. the; a　　　 　　 D. a; the

高一英语单项填空中等难度题查看答案及解析

The legal age for drinking alcohol in the Unite States is twenty-one. Underage drinking is a crime but also a common part of college social life. This week in our Foreign Student Series, we look at alcohol rules at American colleges and universities. These rules differ from school to school, but many schools have been moving to strengthen their rules.

The United States has more than 17,000,000 students in higher education. Each year, 1700 of them die from alcohol-related road crashes and other injuries. 600,000 more are injured while under the influence of alcohol. And almost 700,000 are attacked by another drunken.

One behavior that college officials are trying to prevent is too much drink. Some researchers have found that students who think binge drinking(狂饮) is normal often think extremely how much other students really drink. A person can die of alcohol poisoning. At Oklahoma University, a nineteen-year-old student died from drinking heavily at a party in 2005.

Now alcohol is banned from all sorority houses(联谊会会馆) and university housing. Student organizations can serve alcohol at events but only on Friday and Saturday nights. Other new requirements include an alcohol education program that first-year students take online.

The rules govern behavior on campus(大学校园)and off. With a first violation(违犯)，students pay seventy-five dollars and their parents are told. They must also take an alcohol education class. For a second “strike”, they have to pay one hundred fifty dollars. A third strike means that they have to be suspended school for at least one semester.

Since 2005,363 students have had a first strike. 30 have had a second strike-and only one hasn’t allowed to go to school for one semester. The president at Oklahoma tells us the aim is not just to punish but to change the behavior and culture at the university.

1.The first paragraph mainly tells us that________.

2.Every year the number of the students who die or are injured because of alcohol in the USA adds up to about________.

3.If a student has a third strike, he or she should________.

4.Which of the following is TRUE?

5.From the last paragraph we can infer that________.

高一英语阅读理解中等难度题查看答案及解析

It’s reported that scientists in London have found the best diet for both humans and the planet.

If the world followed the so-called “planetary health” diet, each year more than ll million early deaths could be avoided according to the scientists. For the health of the planet, they say the same diet will reduce (减少) greenhouse gases and save more land, water and animals. This new food plan is the result of a three-year project organized by The Lancet health journal.

Tim Lang, a professor at Britain’s University of London. He said, “The food we eat and how we produce it decide the health of people and the planet.” Lang added, The world’s population is expected to grow to 10 billion people by 2050. If we want to feed everyone, we all need to change what we eat and the way we eat by improving food production and reducing food waste”. So, what do you eat on the “planetary health” diet?

The scientists who created the “planetary health” diet say it is largely plant-based but still has a little milk, fish and meat. The diet calls for cutting down red meat and sugar by 50 percent and increasing nuts, fruits, and vegetable.

Walter Willet of Harvard University in the United States also talked about the “planetary health” diet. He said, “More than 800 million people around the world do not get enough food while many more people have very unhealthy diets.”

The scientists think it difficult to reach their aim. But for them, doing nothing is also not a choice Willet said, “If we can’t make the best diet, it’s better to try and get as close as we can.”

1.What decides the health of people and the planet according to Tim Lang?

A.The taste of the food.

B.The number of population.

C.The climate and our living conditions.

D.The food we eat and the way we produce it.

2.What does the “planetary health” diet mainly contain?

A.Milk. B.Meat.

C.Sugar. D.Plants.

3.What do scientists say about the “planetary health” diet?

A.It is very easy to produce it.

B.It is better to try their best to make it.

C.It is better to do nothing than fail.

D.It is impossible to make it.

4.What is the best title for the text?

A.Humans Health Is Very Important.

B.Many People don’t Get Enough Food.

C.A New Kind of diet may Save the Plane.

D.Different People have Different Eating Habits.

高一英语阅读理解中等难度题查看答案及解析

The legal age for drinking alcohol（酒精饮料） in the US is twenty-one. Underage drinking is not only a crime but also a common part of college social life. This week in our Foreign Student Series, we look at alcohol policies at American colleges and universities.

The United States has more than 17 million students in higher education. Each year, 1,700 of them aged 18 to 24 die from alcohol-related road crashes and other injuries. 600,000 more are injured because of alcohol. And almost 700,000 are attacked by another student who has been drinking.

Now, many schools have begun to strengthen（加强）their rules and college officials are trying to prevent too much drinking. Some researchers have found that students who think heavy drinking is normal often think that other students really drink much.

At the University of Oklahoma, new policies came into effect after a nineteen-year-old student died from drinking too much at a party. Now alcohol is banned（禁止） from all university housing. Student organizations can serve alcohol at events but only on Friday and Saturday nights. And they must provide for transportation to and from off-campus parties. Other new requirements include an alcohol educational program that first-year students take online.

The policies govern behavior on campus and off. With the first violation（违规）, students pay

75 dollars and their parents are told. They must also take an alcohol education class. They have to pay double if the behavior happens again. Those who violate a third time will have to be driven home for at least one term. The president of Oklahoma says the aim is not just to punish but to change the behavior and the culture at the university.

1.According to the numbers given in the second paragraph, we can learn that at colleges ________.

A. most of the deaths and injuries are caused by alcohol-drinking

B. most students go against the law to drink alcohol

C. there are no rules to limit students’ alcohol-drinking

D. alcohol-drinking has caused many worrying problems

2.To prevent students drinking too much, ________.

A. no alcohol can be provided to students except at weekends

B. all students should attend an alcohol educational program

C. free transportation is offered to students living far away

D. students are not allowed to drink alcohol in their dorms

3.With the second violation, the student will ________.

A. take an alcohol educational class

B. not be allowed to have classes

C. have to pay one hundred and fifty dollars

D. have to bring their parents to school

4.What is the purpose of the passage?

A. To warn students of the danger caused by drinking alcohol.

B. To let foreign students know about alcohol policies in American colleges.

C. To report the new policies being carried out in some American colleges.

D. To show that drinking alcohol is common in American colleges.

高一英语阅读理解中等难度题查看答案及解析