One of the things that makes your smart-phone...

One of the things that makes your smart-phone so smart is that if you pull it out in the sun, it senses that—and dials up the screen brightness to compensate. But it’s not a perfect solution.

“First of all, it’s still not bright enough—you have to remember how respectable sunlight is.” Shin-Tson Wu, a physicist at the University of Central Florida. The other problem, he says of the brightened screen, is it kills the battery. So Wu and colleagues have produced a battery-sparing alternative: an anti-reflective screen-coating. Based on the eyes of moths. “Nature is so rich! We can learn a lot from nature. “The thing Wu and others have learned about moth eyes, is that they’re uneven, dotted with tiny projections. That uneven surface reduces the reflection of light off their eyes- thought to help the bugs escape predators (捕食者), and see better in low light. So Wu and his team built a similar surface with tiny dimples (凹), to cut down on glare. He says the dimpled coating could improve the readability of a screen by five to 10 times, compared to a normal smart-phone screen. The details are in the journal Optica.

The tech hasn’t been commercialized yet, and that could take a few years. Which gives researchers time to take advantage of another property of these surfaces: they’re flexible. Meaning the possibility of bendable displays. Combine that with the bendy batteries we reported on in a recent podcast(播客), and it looks the smart-phones of the future could be set for a real transformation.

1.Why do the researchers develop the anti-reflective screen-coating?

A.To brighten the screen. B.To make profits.

C.To take in the sunlight. D.To save the use of battery.

2.What inspired the invention of the screen?

A.The predators. B.The reflection of light.

C.The eyes of moths. D.The smooth surface.

3.How does the screen work?

A.It helps bugs escape.

B.It slows down reading.

C.The smooth surface protects our eyes.

D.The rough surface decreases the reflection of light.

4.What do the researchers expect of the screen?

A.I’ll transform itself. B.I’ll be environment-friendly.

C.I’ll reach consumers soon. D.I’ll be powered by recyclable batteries.

高三英语阅读理解中等难度题查看答案及解析

One of the odd things about some business organizations is that they spend so much money attracting new customers but spend so little keeping them. It just doesn’t make sense. However, taking customers for granted is a routine in some business organizations.

Loyal customers are an organization's only protection against bankruptcy(破产), and losing them because of neglect or indifference is really wrong. Not only do satisfied customers continue to buy by themselves, but they often encourage others to buy. This is advertising that doesn't cost a penny. Although there are always problems in giving good service to customers, maintaining their business isn't all that difficult. It's a matter of attitude, of believing that everyone who buys from you is entitled to the best treatment you can deliver. Plus giving just a little more than you have to.

There are always problems in giving good service to customers. The reason, of course, is that no organization is perfect, and there's many a slip: unreasonable delays in filling orders, shipping the wrong goods, failing to answer letters promptly, and so on. Sometimes these errors or failures can't be helped. For example, if you can't get parts because of material shortages or a transportation strike, customers may be denied the goods they've ordered.

No matter who is at fault, customers whom you value highly should generally be given the benefit of the doubt. The old saying that all customers should be treated alike is a myth. Customers who repeatedly place large orders and pay for them will naturally, get more attention than those who buy infrequently and have to be badgered to pay what they owe. However, you have to make the assumption that all customers are good unless proved otherwise.

1.From the second paragraph, we can know that ____________.

A. satisfied customers should always be well serviced

B. devoted customers are lifelines of business organizations

C. companies can employ customers to advertise their products

D. it is hard for organizations to offer good services to their customers

2.Which of the following statements might the author agree with?

A. Only regular customers deserve good treatments

B. New customers are treated well in large organizations

C. Some errors and failures in business are unavoidable

D. Both an organization and their customers are responsible for certain errors

3. What does the author imply by saying “all customers should be treated alike is a myth”?

A. It’s not true that all customers are treated equally

B. It is an old story that customers receive equal treatment

C. It is possible that customers should enjoy the same treatment

D. It’s a rule that customers should share equal and fair rights

4. The main idea of the passage is best summarized as “_________”.

A. new customers are kings for business organizations

B. taking customers for granted is regulation in business organizations

C. maintaining customers is the most important thing to business organizations

D. business organizations need spend so much money attracting new customers

高三英语阅读理解中等难度题查看答案及解析

阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。

It is recommended that one of the effective ways to make your English writing skills improved should be keeping a diary.

1.　 (compare) with other form of writing， it takes 2.　 (little) time as well as being shorter. It is 3.　　 (general) recognized that you will get to learn how to express yourself in English if you insist on practising. Apparently you may meet with　 4.　 good many difficulties at times. The　 trouble is 　　 5.　 you can not find appropriate words and phrases to give expression to your mind. In addition, there are lots of idiomatic ways of Chinese appearing in your diary.

6.　 my point of view, a piece of good advice is that there should be no　 7.　 way more suitable than keeping a notebook and an English dictionary within easy reach. Whenever something 　　 8.　 (beat) you, put 9.　　 down and then consult the dictionary. Certainly you can get help from your English teacher if necessary. I’m sure it is of great use to keep a diary in English for the　 10. (improve) of writing abilities.

高三英语语法填空中等难度题查看答案及解析

阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。

It is recommended that one of the effective ways to make your English writing skills improved should be keeping a diary.

1.　 (compare) with other form of writing， it takes 　 2.　　 (little) time as well as being shorter. It is　 3.　　 (general) recognized that you will get to learn how to express yourself in English if you insist on practising. Apparently you may meet with　　 4.　　 good many difficulties at times. The trouble is 　　 5.　 you can not find appropriate words and phrases to give expression to your mind. In addition, there are lots of idiomatic ways of Chinese appearing in your diary.

6.　 my point of view, a piece of good advice is that there should be no 7.　 way more suitable than keeping a notebook and an English dictionary within easy reach. Whenever something 　 8.　 (beat) you, put 9.　 down and then consult the dictionary. Certainly you can get help from your English teacher if necessary. I’m sure it is of great use to keep a diary in English for the　 10. (improve) of writing abilities.

高三英语语法填空中等难度题查看答案及解析

The acting is so ________ that it makes you believe that it is one of the best meals that he has ever tasted.

A. enthusiastic　　　　　 B. fundamental

C. convincing　　　　　 D. optimistic

高三英语单项填空简单题查看答案及解析

Do you know what makes you happy? Write a list of all the things that make you happy. How many of them are fun? Most of them? So, if you spend your time doing all these fun things, you’ll be really happy, won’t you?

Well, maybe not. For most people, fun isn’t enough for real happiness. Paul Dolan wrote a book called Happiness by Design. 1. If most of the things on your list are about pleasure, that is what you think makes you happy. But you also need activities with purpose.

2. It’s easy to do well in subjects you like, but subjects you don’t like are less motivating. They’re not fun for you, but you have to study them so you need to find purpose. An “A” in a subject you hate won’t help the world. 3. Each person can study one part until they understand it and then teach it to the rest of the group. The purpose becomes helping the team.

Go back to your list of things that make you happy. 4. Can you add any? Remember, some activities might bring both pleasure and purpose.

Now you need to design a happy life. Paul Dolan believes people should “decide, design, do”. First decide what brings you pleasure and/or purpose -that means your two lists. 5. For example, you might love riding a bike but never have time to do it. So, ride to school or the library or the shops. Some parts of our lives are good or bad luck, but we can still design the rest to make more happiness.

A.But can you be part of a study team with friends?

B.How many of them are activities that bring purpose?

C.There are different ways we can find pleasure in things.

D.He thinks happiness comes from both pleasure and purpose.

E.If you’re a student, your “job” is studying and passing exams.

F.If you think something makes you happy, then it makes you happy.

G.Then, don’t just think about these activities, fill your life with them.

高三英语七选五中等难度题查看答案及解析

The best way to set yourself up for success is to make sure that your goals are SMART: specific, measurable, attainable, relevant, and timely．

Make your goals specific．

You need to give yourself a concrete goal so you know exactly what you're working toward．1.Who will be involved in helping you reach your goal? What exact goal do you want to accomplish? Be very specific．When will you start and when will you reach your goal?

Make your goals measurable．

Now that you have some of the specifics of your goal nailed down, it's time to look at how you will measure your progress．After all, if you don't have any way to measure your goal, how will you know when you've reached it?2. Some examples of measurable goals might be pounds lost, a positive change in blood work numbers, or fitness minutes accumulated．

Make your goals attainable．

It's good to think big．3. A goal that's attainable for you is one that you believe you can reach and have all the support, equipment, knowledge and resources needed to put your goals into action．

Make your goals relevant．

You need to make sure that you're choosing a goal that fits you and your lifestyle．4.Pick something that is meaningful and relevant to you and you ll set yourself up for success．

Make your goals timely．

5.Otherwise, it will be difficult to know how to pace yourself to reach it．Every goal should have a date, which will help you stay on track．In addition, set up a few mini-deadlines to keep you on track to reaching your big-picture goal．

A. Put a deadline on your goal．

B. Never put off till tomorrow what you can do today．

C. You know your goal is specific if it answers these questions．

D. Therefore, you should know in advance how you will make this happen．

E. However, it's also important that you don't set a goal that is too big to reach．

F. Don't choose a goal just because someone else thinks it's something you "should" do．

G. Your goal is measurable if you can find a way to quantify your success using real numbers．

高三英语七选五困难题查看答案及解析

You can’t see it with your own eyes，but your smart-phone is likely to be covered with bacteria- perhaps even more so than your toilet seat. That's a lot of dangerous microbes（微生物）floating around, and yes, it is terribly dirty.

In this age of global travel and trade, it’s more important than ever to cut down on possible routes of infection and to stop bacteria and viruses spreading from person to person. Part of that means making sure your phone isn’t sending anything more than data.

And besides the potential health risks of a dirty phone, there's also the simple annoyance of looking at a screen that’s covered in fingerprints and other oily spots that are part of life with a smart-phone.

In short, you’ve got plenty of reasons to regularly give your phone a thorough clean. Not just during a pandemic（大流行病），either-we should be thinking about keeping our phones bacteria free all the time, says microbiologist Paul Turner, a professor at Yale University.

After all, we touch our phones all the time and many of us are relatively careless about cleaning them. “It sets the stage for kind of concern,” Turner says. “People could be handling phones and picking up any bacteria or virus that can attach to a surface and survive for a period of time.”

Take SARS-CoV-2, the corona- virus（冠状病毒）that causes the COVID-19, for example. Scientists are still trying to get solid evidence, but early research suggests that it can survive on plastic or stainless steel（不锈钢）surfaces for two or three days. That means you could be washing your hands perfectly well, but immediately picking the virus up again as soon as you reach for your phone.

You could be doing everything right（like washing your hands and staying away from people），but

if there’s a contaminated surface in your home or your pocket, you could expose yourself to the virus anyway, Turner says.

1.Why does the author mention the toilet seat?

A.To draw a vivid picture of a dirty phone.

B.To show how dirty a toilet seat is.

C.To add some background information.

D.To introduce a topic for discussion.

2.What can we learn in Paragraph 6?

A.Simply washing our hands is not enough.

B.Scientists have got solid evidence of the COVID-19.

C.The corona-virus can survive on smooth surfaces for 2 or 3 weeks.

D.The author suggests washing our hands before using our phones.

3.What do the underlined words “contaminated surface” refer to in the last paragraph?

A.A stainless steel. B.A deadly virus.

C.A clean phone. D.An infectious phone.

4.What is the main idea of the text?

A.You may get infected with your dirty phone.

B.You are supposed to wash your hands.

C.You’d better clean your dirty phone.

D.You’d better throw away your dirty phone.

高三英语阅读理解困难题查看答案及解析

The older your parents get, the less stable they are on their feet, so you need to make sure that their home is as easy to walk around as possible. One of the most important rooms that needs to be accessible is the bathroom.1. In this article, we are going to give you　 some tips on how you can make your bathroom more accessible.

One of the best ways to make your bathroom more accessible is to fix some rails or handles.2. Rails　 can also　 be added near　 the　 shower and　 in　 other　 places in　 the　 bathroom to make the whole room a lot more accessible.

It is hard to predict how much your parents are going to be able to walk when they are older, so you need to make sure that you are thinking about the future. 3.　 If they need　　 to use a wheelchair then they will find that with small entrances, they won’t be able to get　 the wheelchair through.

4.　 This is because as they get older, their eyesight can start to worsen and so　　 they need a little more light to be able to see things. Think about fixing some overhead lighting as well as lights beside important things in the bathroom. This will help to prevent any sort of trips or falls and they will be able to feel a lot safer when they are using your bathroom in the future.

Are you planning on making your parents’ home a lot more accessible in order to prepare for the future?5.

A.Get advice from the experts.

B.This room can be very slippery.

C.Don’t ignore the lighting in their bathroom.

D.Keep reading if you want your parents to be more accessible.

E.Try out some of the tips that we have given you in this article.

F.This is why you need to think about making the doors in their home a lot wider.

G.These give them something to hold onto when your parents get up and down from the toilet.

高三英语七选五中等难度题查看答案及解析

Since there is no such ________ thing as a free lunch in the world, ________one million people of the city decided to build their home by themselves.

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

高三英语单项填空中等难度题查看答案及解析