Water is vital _______every living thing ____...

Water is vital _______every living thing ______, without which the world would be a dead place.

高三英语单项填空中等难度题查看答案及解析

Brenda Linson never goes anywhere without an empty spectacles case. It is as vital to her as her purse. Yet, she doesn’t wear glasses. The reason she cannot do without it is that she cannot read and she cannot write. If ever she gets into any situation where she might be expected to do either of these things, she fishes around in her bag for the spectacles case, finds it’s empty, and asks the person concerned to do the reading for her. Until a few months ago hardly anybody knew about her problem. Her husband didn’t know and her children didn’t know. The children still don’t.

She had many tactics for hiding her difficult—for example, never lingering near a phone at work, in case she had to answer it and might be required to write something down.

It has never occurred to the children that their mother cannot read. She doesn’t read them stories, but then their father doesn’t either, so they find nothing surprising in the fact. Similarly they just accept that Dad is the one who writes the sick notes and reads the school reports. Now that the elder boy Tom is quite a proficient reader, Brenda can skillfully get him to read any notes brought home from school simply by asking,“What’s that all about, then?”

Brenda’s husband never guessed the truth in ten years of marriage. For one thing, he insists on handling all domestic correspondence and bills himself. A salesman for a large company, he travels a great deal and so is not around so much to spot the truth. While he’s away Brenda cores with any situations by explaining that she cannot do anything until she’s discussed it with her husband.

Brenda was very successful in her job until recently. For the last five years she had worked as waitress at an expensive restaurant, and had eventually been promoted to head waitress. She kept the thing a secret there too, and got over the practical difficulties somehow.

1. Brenda’s children have never found out about her problem as__________.

A. she isn’t often at home.

B. they are too young to guess the truth.

C. they find it normal to ask their father for everything.

D. they think it natural that short-sighted people like their mother don’t do much reading or writing.

2.What most probably made Brenda try hard to hide her difficulty?

A. Her desire to be successful in her job.

B. Her fear of losing face.

C. Her deceitful nature.

D. Both A and B.

3.Of the following suggested titles, which is the most appropriate?

A. Brenda and Her Family

B. A Woman Who Doesn’t Wear Glasses

C. A Woman with an Empty Spectacles Case

D. The Miserable Life of a Waitress

高三英语阅读理解中等难度题查看答案及解析

There’s no doubt that water is vital to any life. About 60 percent of the average adult human body is made of water. This includes most of your brain, heart, lungs, muscles and skin, and even about 30 percent of your bones. Yet there’s little scientific agreement about the exact amount of the stuff an individual should consume each day. So how much water do you actually need to drink to be healthy?

You may have heard that you should drink eight 8-ounce glasses of water a day. Yet, the downside of this rule, researchers say, is that drinking water by the glass is not the only way that humans take in it. The “8 X 8” rule essentially overlooks two big sources of daily water consumption. One such source is food. Everything you eat contains some water. Watermelons, for example, are more than 90 percent water by weight. Different diets naturally contain different amounts of waters, and the counts. The other key water sources are other beverages. Non-alcoholic drinks such as coffee, and tea, contain mostly water and all contribute to your hydration（水量）.

So, between all the food, water and other fluids you consume in a day, how much water should you aim to take in?

The National Academics of Sciences suggests that woman consume a total of approximately 2.7 liters (91 ounces) of warm from all beverages and foods each day and men 3.7 liters (125 ounces). But these are just general guidelines.

The truth is, there is no magic standard for hydration—everyone’s need vary depending on their age, weight, level of physical activity, general health and even the climate they live in. The more water you lose, the more water you’ll need to replace with food and drink. If you are looking for concrete advice, though, the best place to look is within. Drink up when you’re thirsty.

1.How does the author support the underlined sentence in Para 1?

A. By providing facts.

B. By asking a question.

C. By making a comparison.

D. By putting forward suggestions.

2.According to the “8 X 8” rule, how much water should we take in a day?

A. 8 ounces　　 B. 64 ounces

C. 91 ounces　　 D. 125 ounces

3.What’s the disadvantage of the “8 X 8” rule?

A. The water from both food and other beverages is ignored.

B. It includes the amount of water from both food and beverages.

C. It does not take water from drinks into account.

D. It overlooks the fact that we take in 90% of the water from fruits.

4.What can we infer from the final suggestion?

A. A man doing tiring physical work drunks less than 3.7 liters a week.

B. A person in good health drinks whenever he feels thirsty.

C. An overweight male in a hot summer drinks 125 ounces every two days.

D. A female eating a lot of watermelons drinks more than 91 ounces daily.

高三英语阅读理解困难题查看答案及解析

We all know the truth        there are air, water and sunlight there are living things．

A．where                 B．wherever         C．that           D．that wherever

高三英语单项填空中等难度题查看答案及解析

We all know the truth ___ there are air, water and sunlight there are living things.

高三英语单项填空简单题查看答案及解析

We all know the truth ______ there are air, water and sunlight, there are living things.

高三英语单项填空中等难度题查看答案及解析

As you can see，water works hard in your body every day.That’s why it’s important　 to give your body the water it needs to carry out all its different jobs.On a regular day，your body loses 2 to 3 quarts of water—enough to fill a 2­liter soda bottle.You probably guess that water is lost when you sweat—especially　　 on a hot day.

But your body also loses water in an almost invisible way—evaporation (蒸发)．Water escapes from your body through your skin and in your breath.How？Your breath contains droplets (小滴) of water that are usually too tiny to see.They become visible for a quick second in the cold when you can “see your breath”．But water evaporates this way all year round.Your skin also contains water，which escapes in tiny droplets that go into　 the air.The water in your skin evaporates into the air，but fortunately，your body can replace the water it loses so your skin doesn’t dry out.

Eating and drinking is one way to replace the water your body loses.Most foods have a lot of water in them，especially fruits and vegetables.Grapes，watermelons，oranges，and cantaloupes are delicious and full of water.

But you can’t rely_on food alone to get that water back，and that’s why it’s also a good idea to drink water　 every day.You might have heard someone say that people need to drink 6 to 8 cups (1.4 to 1.9 liters) of water each day.Depending on how much　 water you’re getting from foods and other liquids,6 to 8 cups might not be necessary.If you eat a lot of fruits and vegetables，or you like to eat soup every day，you’ll get some of the water your body needs.

1. You should drink enough water every day because________.

A．your body needs too much water

B．water does all kinds of jobs in your body

C．your body loses a lot of water every day

D．the more water you drink the better you feel

2. Water in your body loses by the following ways EXCEPT________.

A．breathing　     B．evaporating

C．sweating　     D．eating

3. Your body has to give enough water to your skin in order to________.

A．keep the water in your skin clean

B．stop your skin from drying out

C．stop the water from losing

D．keep your skin clean all the time

4. What does the underlined phrase “rely on” in the fourth paragraph mean?

A．Eat up.　     B．Receive.

C．Depend upon.　     D．Digest.

高三英语阅读理解中等难度题查看答案及解析

Every living thing has genes. Genes carry information. 1. They make sure that humans give birth to humans and cows give birth to cows. They also make sure that a dog doesn’t give birth to a frog, or an elephant to a horse. However, genetic engineers take genes from one species-for example, a snake, and transfer them to another-for example, corn. 2. Such new life forms have been described, by some scientists as a real-life Frankenstein(科幻怪人).

Genetic engineers put duck genes into chicken to make the chickens bigger. They put hormones(激素) into cows to make them produce more milk. They put genes from flowers into beans and from fish into tomatoes. 3. It just makes them easier and faster for the farmer to grow.

The effects of genetic engineering on the natural world may be disastrous. The engineers may create strange life beings, or monsters. that we cannot control. 4. They’ll have to find one, fight for one-or kill for one. It may be your land they fight for-or you that they kill. Moreover, the effects of these experiments can often be cruel. In America, pigs were given human genes to make them bigger and less fatty. The experiment failed. The pigs became very ill and began to lose their eyesight. We would all like a better, healthier and longer life, and genetic engineering might give us this. On the other hand, it may be a dangerous experiment with nature. In the story of Frankenstein, the doctor created such a terrible and dangerous monster that he had to destroy it. 5.

A. The information tells us what to do or what not to do

B. We must make sure that this tale remains a story-and no more than that

C. This doesn’t make them cheaper, tastier, or healthier

D. The new life forms have no natural habitat or home

E. Then they feed the tomatoes to the fish

F. In this way a new life form is created

G. They are passed on from generation to generation

高三英语七选五中等难度题查看答案及解析

There’s one easy thing you can do every day to live longer and happier, according to a recent study, and it has nothing to do with diet, exercise, or cutting out bad habits.

A review of nearly 150 studies with more than 300,000 participants found that having active social circles decreases your chances of dying by 50 percent, regardless of age, gender or medical history. “When we’re social, we live longer.” Dr. Kelli Harding noted, “Loneliness is more of a risk factor to health than other known risk factors, like high blood pressure and obesity.”

The findings are written up in Dr. Harding’s new book，The Rabbit Effect, which is about how kindness, rather than laughter, may be the best medicine. The book gets its title from a famous 1978 study of the relationship between cholesterol（胆固醇）and heart health in rabbits. Researchers accidentally discovered that those rabbits that received the most affection from their human handlers lived much longer than the others.

We live in a world where most of our social interactions happen through our phones. But to get the health benefits of a more active social circle, you don’t have to throw away your device and join a book club. More casual interactions with neighbors, shop owners, and others you meet every day can do the trick. Increasingly，those relationships can start online. That’s where Nextdoor comes in. The stated purpose of the company is “to cultivate a kinder world where everyone has a neighborhood they can depend on”.

When asked for advice on one thing you can do to live longer and happier, Dr. Harding said it perfectly, “Be kind. It’s actually pretty amazing how much each person can make the world a better，kinder，healthier place. It really takes very little and you never know the impact you have on somebody.”

1.What do we know about The Rabbit Effect?

A.Its title comes from a study. B.It's a report about heart health.

C.Laughter could cure diseases. D.Rabbits could help live longer.

2.What’s the purpose of Nextdoor?

A.To advocate online shopping to save time.

B.To offer the neighborhood sports facilities.

C.To settle the arguments among the families.

D.To create a harmonious community to rely on.

3.What does the underlined phrase “do the trick” in Paragraph 4 mean?

A.Improve health and wellness. B.Set up online relationships.

C.Build a happy and warm family. D.Keep away from bad habits.

4.What can be inferred from Dr. Harding’s words in the last paragraph?

A.We can look for a kind neighborhood.

B.We should be kind to animals in the wild.

C.Every small act of kindness can make a difference.

D.All kinds of social activities can make a better world.

高三英语阅读理解简单题查看答案及解析

The Arizona desert is really dry. Anyone stuck in it without water would die from dehydration（脱水）within three days. Unless, that is, they had one of Omar Yaghi’s next-generation water harvesters. Although daytime humidity（湿度）is only about 10 per cent, this rises to 40 per cent at night, which means there’s enough water in the atmosphere to support life — if it can be changed into liquid form.

That’s exactly what Yaghi’s device does. It’s a box about the size of a small microwave oven designed to suck the humidity from the air at night and turn it into drinking water the next day using only the heat of the sun as its power source. What makes it work is a powder called a metal-organic framework (MOF), which at normal temperatures attracts water molecules (分子) onto its surface. Warm it up and the water is released, each harvest producing one-third of a cup of pure drinking water. “With further improvements, a device, the size of a washing machine, could produce enough water for the basic needs of a household,” says Yaghi, a chemist at the University of California.

One-third of the world’s population lacks safe drinking water; for them such a device could be a lifesaver. But that’s not the limit of the MOF technology.

Just as MOFs can help solve the problem of water shortage, they offer a way of reducing a lot of greenhouse gases. In April this year, the carbon dioxide levels in the atmosphere hit an 800,000-year high, contributing to climate change. Recent research suggests ways that MOFs might be able to help mitigate（缓解）this danger to the Earth’s ecosystem.

An international team led by chemists from the University of Manchester, UK, reported in 2018 that they had developed an aluminum (Al)-based MOF that can selectively and repeatedly remove another gaseous pollutant, nitrogen dioxide (NO2), from the surrounding atmosphere. This discovery could lead to air-related technologies that seize and change large quantities of other gases, such as carbon dioxide, to reduce air pollution.

In 2017, a MOF startup pioneer NuMat Technologies employed MOFs to safely store and deliver dangerous gases. For a given pressure, a tank containing a MOF holds more gas than one without. Or, to put it another way, if a gas tank has a MOF in it, then it does not need to be as highly pressurized in order to hold the same amount of gas, making it safer and less likely to explode, and possible less expensive.

Now, about two dozen companies in the past five years are known to be pursuing MOFs, from small startups to larger chemical and automobile companies. And QYResearch forecasts that the MOF market will grow from $70 million in 2017 to $750 million in 2025. “The potential here is just endless,” says Yaghi. “As cheaper materials come into focus, there will continue to be even more opportunities for commercialization.”

1.MOF changes the sucked humidity into water by ________.

A. lowering the temperature

B. collecting carbon dioxide

C. recycling dangerous gases

D. absorbing the heat of the sun

2.Aluminum-based MOF can be used to _______.

A. reduce greenhouse gases

B. produce household water

C. deliver dangerous gases

D. release water molecules

3.It can be learned that under the same pressure, a tank with a MOF will _______.

A. cost more money　　 B. cause more explosions

C. hold more gases　　 D. afford more crashes

4.The main purpose of this passage is to ______.

A. explain how to use MOF

B. describe the future of MOF

C. persuade people to buy MOF

D. introduce the functions of MOF

高三英语阅读理解困难题查看答案及解析