When it comes to the Internet, passwords which people often use are under fire. {#blank#}1{#/blank#} Research has shown that passwords are not a very good way to protect sensitive information.

    People would use some random characters, numbers and symbols. Furthermore, a unique password would be used for every site or application the user uses. Unfortunately, the more complex they become, the more people are likely to forget their passwords. The longer the passwords are, the more easily forgotten they are.{#blank#}2{#/blank#} 

    Google is trying to kill off the password on Android devices by introducing the Trust API, which does what simple passwords cannot. It gives developers a framework for securing their applications using a number of security systems and metrics (指标)on the device. A Trust Score will be generated based on the metrics the device gathers. {#blank#}3{#/blank#} 

    The Trust Score will be generated based on both metrics like your device location, face scanning, fingerprint and so on. Taken one at a time, these metrics arc not secure. But taken together, these metrics will help define the real "you".

    {#blank#}4{#/blank#}  This summer, Google will be running tests with some banks to see if Trust API meets their needs before rolling out to all developers later this year. It may take another year for apps and popular sites to start using the Trust API.

    This is a pretty exciting change. Passwords have been around for long and although the security of systems has been improved, the convenience of systems hasn't been improved much. {#blank#}5{#/blank#}  Maybe that never-ending conflict between security and convenience will be able to take a break once the Trust system comes out.

A. Google appears to have the best of them.

B. Actually it's been under fire for a long time.

C. People tend to care more about its advantages.

D. Google has already been testing this on the real world.

E. Google has proved that the system is more convenient.

F. Therefore, they use the same password for each application.

G. It'll allow or refuse your application based on your trust score.

    America's holiday shopping season started on Black Friday, the day after Thanksgiving.

    {#blank#}1{#/blank#} Shoppers make the most money this time of year, about 20 percent to 30 percent of all revenue all year. About 136 million people shopped during the Thanksgiving Holiday weekend.

    {#blank#}2{#/blank#} In an era of instant information, shoppers can use their mobile phones to find deals. Nearly 80 percent of this year's holiday shoppers, or about 183.8 million people, shopped on Cyber Monday. {#blank#}3{#/blank#} Online spending on Black Friday rose 15 percent to hit $2.7 billion this year. Cyber Monday spending increased 12 percent to $3 billion. NBC News reported that for many, shopping online was a more comfortable alternative than crowded malls.

    The shift to online shopping has had a big impact on solid shopping malls. Since 2010, more than 24 shopping malls have closed and an additional 60 are struggling. Fortune says the weakest of the malls have closed. However, the business in malls is thriving again, it adds.  According to a survey, 94.2percent of malls were full with shops by the end of 2014. {#blank#}4{#/blank#}

    The average American consumer will spend about $805 on gifts. That's about $630.5 billion between November and December – an increase of 3.7 percent from last year.

    {#blank#}5{#/blank#}That goes to China's Singles' Day, celebrated on November 11, which posted record sales of $14.3 billion in 2015.

A．More and more people shop online nowadays.

B．That is the highest level in 27 years.

C．It is the busiest shopping day of the year.

D．One-in-five Americans used a tablet or smart-phone.

E．The traditional mall industry can hardly survive.

F．Cyber Monday falls on the Monday after Thanksgiving and Black Friday.

G．Nonetheless, Cyber Monday is not the biggest online shopping day in the world.

    While some lucky people are born with the gift of artistic power, others have to study to become fluent in the language of art.{#blank#}1{#/blank#} If the artistic path is calling you, begin the journey with tiny steps and follow it. Here are some ways to show you how to become a true artist.

    Try a generous choice of differing forms of art. If you have never spent much time creating art, it may feel challenging to try to become an artist.{#blank#}2{#/blank#}They just need to express their creative ideas in a great way. If there is a specific type of art you would like to learn more about, go for it, but don't be afraid to branch out and try other forms as well. Some of the most basic forms of art include drawing, painting, sculpting, and photographing.

    Do your research and learn the basics.{#blank#}3{#/blank#} Learn as much as you can about the medium-read books and articles, watch educational videos, and research various methods and other artists. One of the best ways to learn is by studying the work of others who have come before you. If you put effort, it is completely possible to teach yourself how to be a great artist. Need help?{#blank#}4{#/blank#} I'll work for sure.

    {#blank#}5{#/blank#}Many artists devote their lives to creating art. While you do not have to spend every single second of your day working on a painting, do try to dedicate some time each day (or every other day) to working on your project, whatever it might be.

A. Make creating art your favorite.

B. Make time for your art every day.

C. The truth is that all people are artists.

D. Pick up some books on your chosen form(s).

E. You can always further your research with an art class.

F. A key part of being an artist is observing the world around you.

G. Whichever path you are on, be clear that everyone is an artist.

    Whether in your life or work, the following things are not the reasons for you to feel embarrassed. It's OK and just move on.

⒈Mistakes while learning

    There will be times when you have people above you(a boss) or even next to you(a coworker) that will get really annoyed with you for“ruining"  something "important".{#blank#}1{#/blank#} Even if you make mistakes and get a punishment, persevere and push on. You do not need to be embarrassed for learning from your mistakes.

⒉Food choices

    People are different and have different taste buds（味蕾）.Whether it is healthy or not, food is a choice and it is part of life.{#blank#}2{#/blank#}  You do not need to be embarrassed for food you do or do not like. Tell them, "It is a personal choice I have made, and I am committed to it.”

⒊Your past

    Allowing positive experiences to define, limit, improve, and outshine（凸显）you may cause you to be caught up in the past and unable to truly live in the present. Whether your history is positive, negative, or somewhere in between, don't hold on to the negative experiences and let it reflect your current behavior，{#blank#}3{#/blank#}

⒋The clean lines of your car／home／workspace

    When everyone gets in the car, you realize your Starbuck bags are still on the floor. So what? Think about it this way: everyone has a "messy" aspect of their life. Maybe their home is completely clean, but the relationship with their spouse（配偶）is messy. Someone's car gets washed once a week, but his/her work life could use some help.{#blank#}4{#/blank#} We don't apologize to others about our personal limitations. By being outwardly embarrassed, it only brings more attention to the fact!

⒌Putting yourself first

    If you find yourself saying no to something or making up lies to get out of it,tell them the truth,  and don't apologize. You will feel much better in the long run if you are honest with them and yourself. If you're not up to a voluntary duty, you don't have to be. You can politely refuse the person's request.

    {#blank#}5{#/blank#} Put yourself first.

A. It is simply a personal choice that people make for their own reasons.

B. It is okay to be selfish from time to time.

C. Errors are bound to happen when you have on your training wheels.

D. Each of them waits for your immediate help.

E. Let bygones(过去的事)  be bygones.

F. Forgetting history means betrayal.

G. No one on Earth lives a perfectly "clean" life in every aspect.

    The increasing environmental problems and need for eco-friendly products and services are creating a new job section of green-collar jobs.{#blank#}1{#/blank#}It is expected that by 2025 about 25% of the jobs in developed countries will be of green-collar jobs. Doesn't the data look promising for the future?

    {#blank#}2{#/blank#}And jobs will pop up at every income level, from environmental manager to gardener. For example, many countries including the United States have understood that fossil fuels have negative effect on the environment which can later become a serious danger to mankind.{#blank#}3{#/blank#}The increasing demand of newer resources has created the need for experts and researchers who can find better ways to deal with the ongoing needs. In addition, in order to meet the increasing demand of environment-friendly equipment, both green product designer and trained workers are needed. Management of environmental organizations also demands a large number of environmental managers.

    {#blank#}4{#/blank#} Internet is undoubtedly the best way to find information on almost any matter. Nowadays, different kinds of jobs are being posted online. Search through a couple of job websites to look for a bright future in energy conversion and recycling of waste management. Check regularly and find the right work for yourself.{#blank#}5{#/blank#}

A. People who read newspapers can also find different kinds of green-collar jobs.

B. People who take green careers will be well paid.

C. Where can you find green-collar jobs?

D. Green-collar jobs have become a bright career chance for all.

E. Many countries have realized the importance and need for energy-saving products and services.

F. Therefore, possibilities are being explored to find alternatives to meet demands in a better way.

G. Forget the blue–collar and white–collar categories.

After building some "standard"cargo bikes， {#blank#}1{#/blank#} ，this time with something very special. I wanted to build an ideal cargo bike combining the stability of a three-wheeler with the possibility to change directions like being on two wheels. 
The first step was to do extensive research {#blank#}2{#/blank#} .An incredible source of technical inspiration was the online Tilting Group.Although primarily-concerned with tilting（倾斜） concepts of engine driven constructions，the group is surely the best place to find information about constructing a tilter. 
    After researching and outlining a few ideas，I grabbed some parts and started with a very simple prototype（雏形）.Building such a vehicle needs a high degree of accuracy，which was not the case with my prototype {#blank#}3{#/blank#} .So I made a few more sketches（草图），which led to an improved version of the driving and tilting mechanism. 
    Then I started building the tricycle.Building the structure was quite straightforward.As usual I took an old bike apart for the back triangle and then added the front part.After adding a cargo basket to the structure， {#blank#}4{#/blank#} . 
    Now came the hard part：the driving mechanism.I started with the usual design used for two-wheel cargo bikes，but it took me quite some time to figure out how to pass the driving force to both wheels without allowing the whole thing to lock itself in any angle {#blank#}5{#/blank#} ， but I'm sure I can use the knowledge I gained one way or another. 

A.The project was demanding 
B.I decided to get my hands dirty again 
C.I fell in love with three-wheeler bikes 
D.I put all the parts together for the first time 
E.It took me quite some time to understand the ideas behind it 
F.The engine driven constructions were always the most difficult to fix 
D.The consequence was that the driving mechanism locked itself occasionally