Many people rely on a cup of coffee or two to...

Many people rely on a cup of coffee or two to wake them up in the morning or pick them up during the working day, but now a chemist has come up with a speedy alternative to crafting a cup of coffee.

U.S. biochemist Ben Yu has created Sprayable Energy, which claims to be the world’s first caffeine - based topical energy spray. He said tired workers can spray a `shot` of caffeine onto their skin without experiencing a strong buzz, loading up on unnecessary calories or being stuck with a nasty aftertaste like they might get from drinking energy drinks or coffee.

The patent-pending caffeine spray is an odorless liquid that is absorbed through the skin and distributed through the body over a number of hours to deliver a caffeine hit that apparently lasts longer than guzzling a cup of coffee.

Each small aluminum bottle of Sprayable Energy contains around 160 sprays - the equivalent amount of caffeine to 40 cups of coffee and the creators say it is a much cheaper way of getting a caffeine fix than popping to a café. The only active ingredient in the spray is caffeine, which can naturally enter the human body through the skin by passing through cell membranes（细胞膜） as it is very similar to nicotine in structure. Each spritz of Sprayable Energy contains around a quarter of the amount of caffeine found in a cup of coffee, but apparently has the same effect as a full cup.

The website said: `The reason for this is our product not being ingested, isn’t almost entirely metabolized（新陈代谢） by the liver before entering your system and becoming available to your body.Thus, a smaller amount of caffeine can have just the same effect as a very large amount of caffeine ingested through an energy drink or cup of coffee. The website recommends that users apply the spray in places where they normally spritz perfume, such as the neck or wrists, but warns users not to exceed 20 sprays a day.

It claims that after spraying the product on the skin, users will feel awake and focused without being over-stimulated, which is common with coffee and energy drinks.

1.What can we learn about Sprayable Energy from the passage? _______.

A. A bottle of Sprayable Energyis cheaper than 40 cups of coffee.

B. Sprayable Energy lets users not worry about taking in unnecessary calories.

C. Sprayable Energy can be used at least 20 sprays a day

D. The caffeine spray is a colorless liquid that is absorbed through the skin.

2.What can conclude from the passage ?

A, Sprayable Energy can be taken by mouth.

B. Before Sprayable Energy is absorbed by body, the liver entirely metabolizes it

C. Sprayable Energy has not already gone into mass production

D. each spritz of Sprayable Energy has the same effect as a full cup of coffee

3.You will probably read this passage in the column of___________.

A. Food　　　 B. Health

C. Entertainment　　　 D. Energy.

4.What’s the best title of this passage?

A. Sprayable Energy----cheaper but more effective

B. Sprayable Energy----now or never

C. Sprayable Energy----a latest energy spray

D. Sprayable Energy----a new kind of coffee

高三英语阅读理解简单题查看答案及解析

Many people cannot start their day without first having a cup of coffee or tea．These drinks help them think clearly and feel more awake．This is because of caffeine，which helps to give a jump start to the nervous system．Now，a report says it may also boost long-term memory．

Mike Yassa is a neurobiology professor．He and other researchers wanted to know if caffeine could improve a person’s memory．He explains，“After you learn anything，it takes some time for that memory to strengthen．And over the first 24 hours is actually where most of　　 the forgetting happens．So that is where we wanted to intervene with caffeine and see if we can help reduce this forgetting．”　　

They took 160 caffeine-free people and showed them pictures of everyday objects. These people were asked if the objects could be found inside the house， or outdoors．Then some of the subjects were given a caffeine pill．The others were given a placebo—a pill containing nothing. 24 hours later，the subjects were shown the exact same images from the day before．They were also shown images with slight differences，and some completely new images. Both groups correctly identified the exact same and completely new pictures．But those who took the caffeine pill were better at spottingthe pictures that were slightly different．

Professor Yassa says their answers helped to show the effects of caffeine on memory. And　 we find that if they are on caffeine they are much more likely to make the right decision．”

The amount of caffeine the researchers used in the study was similar to one cup of strong coffee．The researchers did not see any improvement to memory from smaller doses of caffeine or when it was given an hour before viewing the images．

1.What is the focus of the text?　　

A．Caffeine can make people addicted．　　

B．Caffeine can make people energetic.

C．Caffeine can improve long—term memory．

D．Caffeine can make people feel comfortable．

2.What does the third paragraph mainly talk about?

A．How the experiment was conducted．

B．Who took part in the experiment．

C．Which group of subjects did better．

D．What was used in the experiment．

3.In which section of a magazine can we read this text?

A．Culture．　　 B. Technology．　　 C．Health.　 D．Education.

4.Which of the following statements is NOT true?

A．Most forgetting occurs within the first 24 hours．

B．Forgetting can be positively affected by caffeine．

C．The subjects were given different pills．

D．Yassa was disappointed with the result．

5.What can we learn from the last paragraph?

A．More caffeine means better memory．

B．Smaller doses of caffeine doesn’t work．

C．The time to take cafieine doesn’t matter．

D．Caffeine is taken before the experiment．

高三英语阅读理解中等难度题查看答案及解析

For every cup of coffee you made, about two spoons of grounds end up in the waste. That doesn’t seem like a lot, but just think about the millions of coffees consumed around the world every single day, and you’ll see the problem. Sure, some of those coffee grounds are recycled as fertilizer to enrich the soil or beauty products like face masks, but most will be buried into the ground. It was while considering this issue that German product designer Julian Lechner came up with a new way of recycling coffee grounds — turning them into tableware.

“We were always drinking coffee at university,” Lechner remembers. “And that’s how I started to wonder. What happens to all that coffee? It was all just getting thrown away.” He began consulting with his professors about ways of using coffee grounds to create a solid material.

“We tried combining with a lot of different things,” Lechner said, “We even tried sugar. That was close, but basically it was a candy cup. It just kept melting after being used three times.” The whole point was to make it last long, so Lechner and his partners went back to the institute to continue their research. Finally, after many failed experiments, they came up with a mix of coffee grounds and a biopolymer(生物高聚物) that seemed to behave the way Lechner had expected it.

“The moment of knowing the cup would actually stand was super-exciting,” he recalls. “It was wonderful to drink that first coffee out of the cup. It proved to be totally worth the wait.” And his creation has proven commercially successful, which is just the icing on the cake. The coffee cups are now present in ten shops across Europe, and the company can hardly keep up with demand, regularly selling out of its stock online.

Lechner will soon launch a larger line of coffee grounds cups and also work on a travel mug. But those are just short-term plans, as Lechner hopes to one day use recycled coffee grounds to create all sort of useful stuff—like sheets and furniture in cafés and restaurants.

1.What do people do with coffee grounds before Lechner?

A. Make products beautiful.

B. Improve the soil.

C. Produce drinking cups.

D. Create solid materials.

2.What can we infer from Paragraph 3?

A. Candy cups can last longer than coffee cups.

B. Coffee grounds are rich in biopolymer.

C. Biopolymer can get coffee cups used repeatedly.

D. Lechner invented coffee cups alone.

3.What does the underlined phrase refer to in Paragraph 4?

A. Profits from coffee cup business.

B. Creation of coffee cups.

C. Decreasing demands for coffee grounds.

D. Consumption of delicious iced coffee.

4.What is the main idea of the passage?

A. A new way of recycling coffee cups.

B. Commercial success from consuming coffee.

C. Recycling coffee grounds into stuff like coffee cups.

D. Different product designers of recycling coffee grounds.

高三英语阅读理解中等难度题查看答案及解析

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Go ahead and grab that cup of coffee, or two, or more. Doing so may improve your health and help you live longer, suggests a new research in a new observational study involving close to 20,000 individuals, people1.consumed at least four cups of coffee daily had a 64% lower risk of early death 2.(compare) to those who never rarely consumed coffee.

The reduction in risk was more significant once people reached3.age of 45, suggesting that it may be even4.(good) to consume coffee as we get older.

These findings support the recent results of another large observational study, which found that coffee5.(drink) appear to live longer, regardless of whether they consume regular coffee.

Coffee has also been shown to reduce the risk of many diseases, including type 2 diabetes(糖尿病), liver disease, Alzheimer’s and skin cancer, too.

“Coffee is loaded with antioxidants（抗氧化剂）,” said Joe DeRupo, a spokesman for the National Coffee Association." Many are 6.(natural) occurring antioxidants found in the coffee bean, while others 7.(create) during the roasting process. These antioxidants are thought to be linked with positive effects in 8.(reduce) the risk of several diseases.

While coffee consumption may appear to be healthful for many, others should carry on9.caution. Pregnant women, for example, should cautiously limit10.(they)intake of coffee.

高三英语语法填空简单题查看答案及解析

There are two types of people in this world: those who regularly wash their office coffee cup. And those who only take it off their desk to cover up the coffee mark at the bottom with a fresh pour, driving away their shame with the reasoning that the heat must kill the bacteria or spine thing.

Depending on which type of person you are, this will be either mildly annoying or more-than-mildly exciting. As Heidi Mitchell wrote in a recent Wall Street Journal column, it’s fine to never wash your cup, as long as you’re not sharing it with anybody else.

There are two warnings to that statement, infectious-disease expert Jeffrey Strake, a professor at Baylor College of Medicine, told Mitchell; One, it only applies if you’re not sharing the cup with anybody else. And two , if you leave cream or sugar in your cup over the weekend, that can certainly cause mold(霉) to grow – in which case, wash it out.

Otherwise, though, there’s not really much to worry about. “If I went and cultured the average unwashed coffee cup, of course I would find bacteria.” Starke said. “But remember the vast majority came from the person who used the cup.” Even if you drink from it while sick, it’s pretty hard to re-infect yourself with the same cup; most viruses don’t live long outside the body, which means that just letting your cup live in its own dirt may be a safer bet than the alternative; cleaning it with the disgusting sponge(海绵) in the office kitchen “The sponge in the break room probably has the highest bacteria count of anything in the office.” Starke said if the idea of not washing horrifies you , just stick the sponge in the microwave before using. Otherwise, though, reel free to continue your lazy ways without guilt.

1.What does the passage intend to tell us?

A. It is harmful to drink coffee with sugar.

B. It’s okay not to wash your coffee cup regularly.

C. The hot water contributes to the bacteria growing.

D. Drinking from unwashed coffee cups causes diseases easily.

2.What do we know from Stark’s words?

A. The coffee cup in the office must be put in the microwave to clean.

B. It’s easy to get infected if you often use the same unwashed cup.

C. The coffee cup shouldn’t be shared in the office.

D. It’s good way to grow bacteria in an unwashed cup.

3.What does the underlined part “your lazy ways” refer to ?

A. Leaving your coffee cup unwashed.　　 B. Sticking the sponge in the microwave

C. Using Paper cups only in the office　　 D. Cleaning your coffee cup with sponge.

4.Where does the passage probably come from?

A. A travel brochure.　　 B. A science magazine.

C. An official statement.　　 D. An entertainment program.

高三英语阅读理解中等难度题查看答案及解析

--- What would you like to drink, girls?

--- _________, please.

高三英语单项填空简单题查看答案及解析

How Many Cups of Coffee per Day Are Too Many?

From cappuccinos to cold brew, coffee is a must-have to start the day for many people. 1. However, a new study suggests too much coffee can be harmful.

This is what a recent study shows. 2. A University of South Australia study led by Elian Hypponen suggests a couple of cups to start your day probably won’t hurt — and may even be good for you. But drinking six or more cups of coffee a day can increase your risk of heart disease by up to 22%, the researchers found. A cup was defined as eight ounces of coffee.

Knowing the limits of what's good for us and what's not is necessary. 3. About one in four deaths in the United States is due to heart disease, according to the U.S. Centers for Disease Control and Prevention. Heart disease is the leading cause of death worldwide. That's why Elian set out to discover how much caffeine causes high blood pressure. 4.

Elian says her findings suggest that sipping two to three cups per day is pretty safe and possibly beneficial. She also notes that if you're generally healthy, lots of evidence suggests that four cups per day shouldn't be harmful.

5. Even though the research says five cups of coffee is permissible, each person should know his or her own limit. If we begin having difficulty sleeping or feeling nervous, we might have reached our limit for the day.

A. Drink no more than six cups per day.

B. Over the limits and our health will pay for it.

C. Coffee is the most popular drink in the world.

D. But of course, don't forget to listen to our body.

E. The relation between them is quite complicated.

F. As we know, it is a key heart disease risk factor.

G. It sets you off on an energetic morning and prepares you for a busy day.

高三英语七选五简单题查看答案及解析

Everybody sleeps, but what people stay up late to catch—or wake up early in order not to miss—varies by culture. From data collected, it seems the things that cause us to lose the most sleep, on average, are sporting events, time changes, and holidays.

Around the world, people changed sleep patterns thanks to the start or end of daylight savings time. Russians, for example, began to wake up about a half-hour later each day after President Vladimir Putin shifted the country permanently to “winter time”starting on October 36.

Russia’s other late nights and early mornings generally correspond to public holidays. On New Year’s Eve, Russians have the world’s latest bedtime, hitting the hay at around 3:30 am.

Russians also get up an hour later on International Women’s Day, the day for treating and celebrating female relatives.

Similarly, Americans’ late nights late mornings, and longest sleeps fall on three-day weekends.

Canada got the least sleep of the year the night it beat Sweden in the Olympic hockey(冰球）final.

The World Cup is also chiefly responsible for sleep deprivation(剥夺）, The worst night for sleep in the U.K. was the night of the England-Italy match on June 15. Brits stayed up a half-hour later to watch it, and then they woke up earlier than usual the next morning thanks to summer nights, the phenomenon in which the sun barely sets in northern countries in the summertime. That was nothing, though, compared to Germans, Italians, and the French, who stayed up around an hour and a half later on various days throughout the summer to watch the Cup.

It should be made clear that not everyone has a device to record their sleep patterns, in some of these nations, it’s likely that only the richest people do. And people who elect to track their sleep may try to get more sleep than the average person. Even if that’s the case, though, the above findings are still striking, If the most health-conscious among us have such deep swings in our shut-eye levels throughout the year, how much sleep are the rest of us losing?

1.What does the author say about people’s sleeping habits?

A. They are culture-related .

B. They affect people’s health

C.They change with the seasons.

D.They vary from person to person.

2.What do we learn about the Russians regarding sleep?

A. They don’t sleep much on weekends.

B. They get less sleep on public holidays

C.They don’t fall asleep until very late.

D.They sleep longer than people elsewhere.

3.What is the most probable reason for some rich people to use a device to record their patterns?

A. They are involved in a sleep research.

B. They have trouble falling asleep.

C. They want to get sufficient sleep.

D. They want to go to bed on regular hours.

4. What does the author imply in the last paragraph?

A. Sleeplessness does harm to people’s health.

B. Few people really know the importance of sleep.

C. It is important to study our sleep patterns.

D.Average people probably sleep less than the rich.

高三英语阅读理解中等难度题查看答案及解析

Many people often find themselves waking up in the middle of the night, unusually awake and excited. 1. . That's really frustrating. However, there is no need to worry. Here are some effective ways to help you fall asleep again.

Remain in bed. For you to fall asleep, your heart rate needs to slow down. When you get up, your heart rate goes up. So, avoid going to the bathroom during the night if you can. Do not eat too little or too much for dinner. Do not drink and fill your bladder （膀胱）before bed. 2. . It may make you fall asleep faster, but it may also disrupt

your sleep later in the night.

Stay in the dark. When you cannot sleep, LED lights on printers and cable boxes may be the reason. The same is true for light streaming in through cracks in curtains. 3.. You should cover lights with tape and wear a sleep mask. A popular choice has deep eye cups so your eyes can open and shut while you wear them.

Quiet your mind. Try ways to relax, such as deep breathing, meditation, and mindfulness exercises. 4. . The point is to keep your brain busy with something that is not demanding and is relaxing.

5. . If your wake-up time is 6:30 a.m. and your clock reads 3:00 a.m., do not think Oh no! I have only three hours left! Instead, say to yourself Oh great! I have three more hours to sleep!

You have a problem if you wake three times a week for more than three months. It may affect your quality of life. You need to find a sleep expert who can help identify the cause and fix it.

A. Think in a positive way.

B. Maintain a calm attitude.

C. They may keep you awake.

D. Most importantly, avoid alcohol in the evening.

E. You can do simple math problems in your head.

F. Getting up to do some mild exercise is also helpful.

G. Tossing and turning in bed, they are unable to fall asleep.

高三英语七选五中等难度题查看答案及解析

Many people often find themselves waking up in the middle of the night, unusually awake and excited. 1. . That's really frustrating. However, there is no need to worry. Here are some effective ways to help you fall asleep again.

Remain in bed. For you to fall asleep, your heart rate needs to slow down. When you get up, your heart rate goes up. So, avoid going to the bathroom during the night if you can. Do not eat too little or too much for dinner. Do not drink and fill your bladder （膀胱）before bed. 2. . It may make you fall asleep faster, but it may also disrupt

your sleep later in the night.

Stay in the dark. When you cannot sleep, LED lights on printers and cable boxes may be the reason. The same is true for light streaming in through cracks in curtains. 3.. You should cover lights with tape and wear a sleep mask. A popular choice has deep eye cups so your eyes can open and shut while you wear them.

Quiet your mind. Try ways to relax, such as deep breathing, meditation, and mindfulness exercises. 4. . The point is to keep your brain busy with something that is not demanding and is relaxing.

5. . If your wake-up time is 6:30 a.m. and your clock reads 3:00 a.m., do not think Oh no! I have only three hours left! Instead, say to yourself Oh great! I have three more hours to sleep!

You have a problem if you wake three times a week for more than three months. It may affect your quality of life. You need to find a sleep expert who can help identify the cause and fix it.

A.Think in a positive way.

B.Maintain a calm attitude.

C.They may keep you awake.

D.Most importantly, avoid alcohol in the evening.

E.You can do simple math problems in your head.

F.Getting up to do some mild exercise is also helpful.

G.Tossing and turning in bed, they are unable to fall asleep.

高三英语七选五中等难度题查看答案及解析