What it doesThe self-cleaning door handle is ...

What it does

The self-cleaning door handle is combining with advanced photocatalytic ( 光 催 化 ) and blacklight technology. A light source activates the door’s handle coating, telling it to start cleaning. It can minimize the risk of infection by contact and improve the cleanliness of a space.

How it works

The working principle of the product is that a thin advanced photocatalytic coating can effectively decompose bacteria ( 细 菌 ) on the surface of a substance. A consistent UV light source—inside a transparent glass door handle—is required to activate the door’s handle coating on the outer surface for disinfection, so a generator is used to provide electricity to light up a UV LED lamp by the motion of an opening and closing door. Then, the door handle can clean by itself.

Design process

We made the first version by using stainless steel. However, it caused the door handle to be heavier. Then, we tried aluminum, which made it light and easy to fix. We also improved the generator output which effectively turned energy from door movement into a light source.

How it is different

Our innovative design is simple, effective, and attractive. It has an elegant smooth shape, and its minimalist appearance stands out in today’s world of inventions. Nowadays, people use chemical cleaning materials to clean up public areas but it harms the human body. Our design can be used for a long time and is effective. It can self-clean after each use. In the door lock and door handle market, it is a unique design because there are no similar products.

Future plans

In the future, we will commercialize the product and hope that it can compete on the market with similar products. We are going to connect with public properties, for example, shopping malls, hotels, hospitals and public restrooms, where the risk of spreading infection is higher.

Awards

In addition to winning the James Dyson Award, it has also received the Gold Award, and in 2016, it was featured in the 44th International Geneva Inventions Exhibition.

1.How does the self-cleaning door handle function?

A.It controls the door movement automatically.

B.It minimizes the risk of infection by less contact.

C.Chemical cleaning materials are used to clean it up.

D.The light source tells the door handle coating to clean itself.

2.Compared with the first version of the product, the present one is ______.

A.safer and cheaper B.cleaner and easier

C.less heavy and more effective D.more attractive and expensive

3.What do we know about the new invention according to the passage?

A.It has been widely used in public areas.

B.It has received recognition for its innovation.

C.It is quite competitive among similar products.

D.It will replace traditional chemical cleaning materials.

高三英语阅读理解简单题查看答案及解析

As nobody here knows what is wrong with the machine, we ________send for an engineer to handle the problem．

A．should           B．must             C．can              D．would

高三英语单项填空简单题查看答案及解析

Now VAR technology is fully combined with the global game of soccer and made its debut (首次亮相) at the 2018 World Cup. 1.. It is actually a team who work together to review certain decisions made by the main judge by watching video replays.

The VAR team supported the judges from a centralized video room. The operators selected and provided the best angles from the relevant broadcast cameras plus two additional offside cameras. 2.. They will communicate with the judges only for clear and obvious errors or serious missed incidents. The judge can delay the restart of play at any time to communicate with the VAR team. 3., the judge would start an official review. Then they will make a decision based on the information received from the VAR team.

4.. Some fans believe that VAR causes too many interruptions, disrupting the flow of the game. But others just want a fair match and to see the correct call no matter what. They argue disruptions already take place as angry players crowd around a judge following a controversial decision. 5.. With much money put into modern football, governing bodies are now under great pressure to see that the correct decisions are made on the pitch and VAR is a sure step in that.

A.VAR works as video judges

B.If one team is likely to win a game

C.It is hard to avoid and VAR is necessary

D.Now VAR has incurred heated discussion

E.Once they decide an incident is reviewable

F.Throughout a match they are constantly checking for mistakes

G.VAR can serve to remove such scenes and get the game moving again

高三英语七选五中等难度题查看答案及解析

An ideal job should be one that _____ what you are good at with what you are interested in.

A. combines　　　　　　 B. connects

C. contacts 　　　　 　 D. concentrates

高三英语单项填空困难题查看答案及解析

____amazed me most was the young boy handling 8 pen with his feet

A． That　　　　 B． What　　　　 C．As　　　　 D． Who

高三英语单项填空简单题查看答案及解析

____amazed me most was the young boy handling 8 pen with his feet

A. That　　 B．What　　 C. As　　 D. Who

高三英语单项填空中等难度题查看答案及解析

Voluntourism

Volunteering to help people in need combined with travelling to faraway places is a new trend in the travel industry. It is called voluntourism. 1. They find it is the best way to get the best of the world.

Recent statistics show that in the past few years voluntourism has been one of the fastest-growing areas of tourism. More than 1.6 million people around the world are volunteers in other countries. They help build schools, assist in hospitals and do farming work in developing countries. 2. They keep in touch with their host families after they return home, and many return to visit.

There are many reasons why people want to engage in voluntourism. When people choose to join a voluntourism program, they are joining a global network of volunteers who are living and working with diverse cultures on projects that have a positive effect. The volunteers come from all over the world, and they will share the passion for giving back and the desire to broaden horizons. Some students also see it as a gap year after school, while others simply want to take time out from a job and do something else. 3. However, many voluntourists do not see volunteering as what it is. They think it is a cheap way of travelling and don't really want to get involved in hard work.

While voluntourism has been around for over a century, modern volunteering started with the Peace Corps, a program that the US government started in the 1960s. From then on, voluntourism has become more and more popular. Many organizations start similar projects. 4. And they have hundreds of different types of programs for people to choose from in more than 30 developing countries. The programs run year round and each volunteer chooses when they want to start and the duration they would like to stay for.

5. They say that if people really want to help those in need, there are many opportunities in their own community to do this. On the other side, volunteers are often not skilled enough for the tasks that they do. Travel experts point out that in some cases voluntourists are often taken advantage of by the organization that sets up the trips.

A. Not everyone sees voluntourism in a positive way.

B. Some of them establish lasting bonds with people there.

C. And there are those who are bored and merely seek adventure.

D. Most voluntourism organizations employ people from similar fields.

E. By participating in voluntourism, they are contributing to local economy.

F. People travel to other countries, learn languages and gain new experiences.

G. They offer voluntourism trips to suit people's interest, experience level or age.

高三英语七选五中等难度题查看答案及解析

任务型阅读

Green finance is a phenomenon that combines the world of finance and business with environmentally friendly behavior.It is a stage for many participants， including individual and business consumers， producers investors，and financial lenders.Green finance can be expressed differently depending on the participants' financial incentives(动机) ， desires to preserve the planet， or a combination of both.In addition to showing environmentally friendly behavior，such as promoting mass transit or the recycling of used goods， green finance is about preventing the promotion of any business or activity that could do damage to the environment now or future generations.

Financial institutions that extend lending to individuals， small businesses，or large corporations can do so in an environmentally friendly manner.In this type of green finance，loans are used for the proliferation(扩散) of renewable energy， for instance.A lender could finance the development of a solar power plant that generates power from the sun and panels installed on the roof of a building or residence.Wind power generation is another of business that would get support from green financiers.These com panes develop expensive wind farms that use large turbines onshore and of shore to capture the wind and generate energy.

Energy producers， who use fossil flues，including coal， are not likely to participate in any type of green finance.Coal is a traditional power source that release emissions into the air，substances that are largely considered harmful to the environment. As a result，a coal producer is the type of company that a green financer would likely avoid.

Offering environmental incentives to market participants is a useful way to drive the development of green businesses. Small businesses that are not even in the business of clean energy can participate because this is an extremely proactive(主动的)form of green financing. For instance， a company that sells vehicles may focus on selling cars that are designed to use a hybrid fuel combining both fossil fuels and renewable energy. This business might offer customers an incentive to purchase a car， for example， and in exchange for every vehicle that is sold， the dealer will purchase and plant a tree to promote a clean environment.

Venture capital its(风险投资者) ， or firms that extend financing to start up companies for growth， participate in green finance in an active way. Many firms are behind emerging technologies clean energy that are expected to produce a greater portion of the world's power in the future.Venture capitalists specialize in risky and emerging technologies and as a result， tend to have a hand in green financing.

高三英语任务型阅读困难题查看答案及解析

“The price of books for our students is just getting higher and higher and，combined with the rising cost of tuition，it’s killing these students，”said Peter Jason，a college professor．“Remember，students are one of the poorest groups of people in America．Almost half of them have at least one part-time job．In fact，one of my students has three jobs．And she still manages to have high scores and go to school full-time.”

Textbook prices are traditionally high．Adding to that problem，many college teachers change textbooks year after year；they either upgrade to a new edition or switch to an entirely different textbook．This further hurts students because if an instructor no longer uses a particular textbook，that book has no resale value．

Dr．Jason decided to make lire a little easier and a lot cheaper for his students by writing his own book on public speaking．“Many books have an increased price because of CD-ROMs，lots of color photographs and pictures．I talked to my students，and many of them，like me，prefer to keep things simple! So，a few years ago，I wrote my own textbook．Compared to most other public speaking books，mine is half the number of pages，and one-third the price．That is，$30 instead of $90．When I wrote a second edition last year，students only had to buy the 35 new pages, For only $7．00，they had almost a new book. Now my loose-leaf textbook enjoys great popularity among the students．Maybe in the future more writers and publishers will try it．”

1.What did Dr. Jason say about students at college?

A．They are short of money．                B．They need better textbooks

C．They should do part-time jobs．            D．They are trying to get high scores．

2.What did Dr．Jason decide to do to help the students?

A．To choose cheaper textbooks．            B．To write a textbook himself．

C．To speak to his students.                  D．To use old textbooks．

3.How much does a public speaking textbook usually cost?

A．About 7 dollars.                        B．About 30 dollars.

C．About 37 dollars．                      D．About 90 dollars．

4.Which of the following can be inferred from the passage?

A．Dr Jason's textbook has CD-ROMs and nice pictures.

B．More writers and publishers will write simpler textbooks．

C．Dr．Jason teaches public speaking at a college．

D．Dr-Jason’s textbook is not well received．

高三英语阅读理解简单题查看答案及解析

Glass is _______ and must be handled with great care.

A．sensitive          B．smooth           C．flexible           D．fragile

高三英语单项填空中等难度题查看答案及解析