根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。

      Secret codes (密码)keep messages private。Banks, companies, and government agencies use secret codes in doing business, especially when information is sent by computer.

     People have used secret codes for thousands of years. {#blank#}1{#/blank#}  Code breaking never lags(落后) far behind code making. The science of creating and reading coded messages is called cryptography.

     There are threemain types of cryptography. {#blank#}2{#/blank#}  For example, the first letters of “My elephant eats too many eels” Spell out the hidden message “Meet me.”

{#blank#}3{#/blank#} You might represent each letter with a number, For example, Let's number the letters of the alphabet, in order, from 1 to 26. If we substitute a number for each letter, the message “Meet me” would read “13 5 20 13 5.”

     A code uses symbols to replace words, phrases, or sentences. To read the message of a real code, you must have a code book. {#blank#}4{#/blank#} For example “bridge“ might stand for “meet” and “out” might stand for “me.” The message “bridge out” would actually mean “Meet me.” {#blank#}5{#/blank#}  However, it is also hard to keep a code book secret for long. So codes must be changed frequently.

A. It is very hard to break a code without the code book.
B. In any language, some letters are used more than others.
C. Only people who know the keyword can read the message.
D. As long as there have been codes, people have tried to break them.
E. You can hide a message by having the first letters of each word spell it out.
F. With a code book, you might write down words that would stand for other words.
G. Another way to hide a message is to use symbols to stand for specific letters of the alphabet.

    After Steve Jobs died，his friend Larry Ellison said something like this，"There will never be another Steve Jobs". {#blank#}1{#/blank#} Larry wrote this list of Steve's life lessons to remind us all.

Love what you do.

    Surely Steve became a billionaire when he brought Apple back. Apple was his calling— even after he got fired from the company. We all have bad jobs at one point in our lives. But the question is: am I in the right job? Have I found the right company? Life doesn't go on forever. {#blank#}2{#/blank#}

Don't do it all by yourself.

    Steve learned a great leader can't do it all by himself. He needs people. They must be talented. {#blank#}3{#/blank#} They must be given the opportunity to succeed and fail. In short, we have to learn to be a great leader if we want to see our great ideas and hard work truly have an influence on the world.

{#blank#}4{#/blank#}

    Apple is always the best at creating a new product that meets the exact needs of users. It's empathy (共鸣) that helps Apple achieve this. Whenever the user has the first touch with a new Apple product, he says "Wow, it's just what I need". Remember, you're King in the business world if you know exactly what consumers desire.

Don't mess around with your health.

    {#blank#}5{#/blank#} That's the most important lesson from Steve's life. It's great to learn from him now, but the fact is that he should still be here if he had treated his cancer properly. Instead, Steve chose a naturopathic (自然疗法) solution that wasn't effective. When he finally decided to take his doctor's original advice, it was too late.

A. Be the best in your field.

B. They must be inspired.

C. Get on our right path now.

D. Take your health seriously.

E. Put yourself in the other person's shoes.

F. Will this lead to a successful career?

G. What are the key things that we can learn from him?

    Scientists often see the first ten years of a child's life as the “window of opportunity”.{#blank#}1{#/blank#}And studies show that the following activities can benefit their brain greatly.

    {#blank#}2{#/blank#} Free playtime has always been an important part of “being a kid”, but it is also important to a child's development. “Free play” not only helps kids develop different skills, it also helps them develop into happy healthy adults in the future.

Read with kids

    Reading has long been known to improve children's intelligence.{#blank#}3{#/blank#} For parents who don't have much time, just surrounding your kids with books goes a long way too.

Put kids to bed early

    {#blank#}4{#/blank#} Preschool children should get at least eleven hours of sleep and kids up to age 12 should try to get at least ten hours of sleep.

Learn a second language

    Early studies in this field have shown that bilingual （双语的）kids can perform better under pressure. Young children can learn new languages with nearly perfect fluency （流利）and pronunciation.

Praise good effort not intelligence

    Your kids may be smart but you should mainly praise the effort they put into tasks. Kids, who are praised on intelligence, often feel it is a fixed quality, and mistakes or failures badly hurt their self-confidence. Kids who are praised on effort often focus more on learning.{#blank#}5{#/blank#}

A. Play some helpful games

B. Give them enough playtime

C. And they are not afraid to fail and try again

D. Kids still need time away from the TV to do homework

E. Kids who read often develop earlier writing and number skills as well

F. Everything at this time is very important to the development of a person's brain

G. Studies show that kids with regular bedtimes are better at languages, math and reading

    Want to improve your language skills? Follow the tips.

    Embrace authentic language

    Go to find what you love—movies, audiobooks, podcasts, or comics. Or travel back in time to your favorite childhood Disney songs. You may find that you even want to sing along with them.{#blank#}1{#/blank#}Language teachers call these “authentic texts”,which is simply another way to say that this is real, living, breathing language.

Use your devices

    Think of the technology you use on a daily basis. How about changing the display language?{#blank#}2{#/blank#}It might be worth making a mental note of how to change the language back though, just in case.

    Build associations with your environment

    Your environment is full of vocabulary. Sticky notes are your friends when it comes to labeling every object in your house. Handy tip: Don't just label stuff, build associations with useful vocabulary. For example, don't just write “the light switch” but also “to turn on”,“to turn off”,“bright” and “dark”.Reading these associations regularly will help solidify them in your mind.{#blank#}3{#/blank#}

    Less is more—when you do it regularly

    Make it a habit to learn as much as you can every day—and “can” is the operative word here. You've got half an hour? Great. Only 15 minutes today? No problem. It's still better than cramming for a weekend and then doing nothing for a couple of weeks.{#blank#}4{#/blank#}If you're able to integrate language learning into your day instead of trying to set aside “extra” time for it, the chances of it becoming a habit are much better.

    Find someone to talk to, even if it's you

    Finding a native speaker to talk to is an absolute must if you want to learn a language.{#blank#}5{#/blank#} And don't be afraid to chat in the language you're learning: everybody who's ever learned a language has done this at one stage or another. It's perfect for building your confidence, or trying out new words, so it becomes the second nature.

A. What's important is that you learn regularly, and that you find time for it in your daily routine.

B. Waiting at a cafe? Scan the headlines on China Daily, of course, the English version.

C. Try making little sentences with them as you go about your day—talking to yourself can be invaluable.

D. While you're walking the dog, listen to that foreign language podcast.

E. Jingles and songs learned in any language stick in the mind for decades.

F. Your computer, your smart phone, your browser, your apps, your GPS, and of course any games you play.

G. Get someone else who's learning the language, a classmate or colleague.

Social Phobia

    It is natural to feel nervous, or shy in front of others at times. Most people manage to get through these moments when they need to. {#blank#}1{#/blank#} It's probably more than shyness. It may build up into a powerful fear. As a result, people feel uncomfortable participating in everyday social activities. This is called social phobia (also called social anxiety).

    {#blank#}2{#/blank#} It prevents them from chatting with friends in the lunch time, joining an after-school club, or going to a party. Sometimes, they even feel too nervous to ask a question in class or go to a teacher for help. Social phobia not only prevents people from trying new things. It also prevents them from making the normal, everyday mistakes that may help people improve their skills even further

    It is really sad, isn't it? But the good news is that people with social phobia can learn to manage fear, develop confidence and communicating skills and stop avoiding things that make them nervous. Of course it's not always easy. Dealing with social phobia takes the willingness patience and courage to face fears. {#blank#}3{#/blank#}

    Therapists (治疗师) can help people create a plan for facing social fears and build the skills and confidence to overcome it. And family or friends are especially important for them. {#blank#}4{#/blank#}They can encourage them to pick a small goal to aim for, remind them to go for it, and be there when they might feel discouraged.

    Little by little, someone who decides to deal with extreme shyness can learn to be more comfortable. {#blank#}5{#/blank#} As shyness and fears begin to melt, confidence and positive feelings build. Pretty soon, the person is thinking less about what might feel uncomfortable and more about what might be fun.

A. Friends can overcome their fears easily.

B. But for someone, the anxiety can be extreme.

C. They are not able to make eye contact with classmates.

D. Social phobia makes people lonely or disappointed over missed opportunities.

E. Each small step forward helps build enough confidence to take the next small step.

F. It also takes an action to go forward rather than back away when feeling shy.

G. The support from those key people helps them gather the courage to try something new.

    Culture means any human behavior that is learned in human society. All of the meaningful parts of a culture are passed on to different generations through tradition or social learning.{#blank#}1{#/blank#}Culture exists in agricultural as well as industrialized societies.

    Culture is necessary for the survival and existence of human beings as human beings. Practically everything humans know, think, value, feel, and do is learned through taking part in a sociocultural system.{#blank#}2{#/blank#}Here is one of the cases of children growing up apart from human society. In the province of Midnapore in India, the director of a children's home was told by local villagers that there were “ghosts” in the forest. Upon looking into the case, the director found that two children, one about eight years old and the other about six years old, appeared to have been living with a group of wolves in the forest.{#blank#}3{#/blank#}In his diary, the director describes his first view of Kamala (as the older child was named) and Amala (the name given to the younger child):

    Kamala was a terrible-looking being, the head, a big ball of something covering the shoulders.{#blank#}4{#/blank#}Their eyes were bright and sharp, unlike human eyes. They were very fond of raw meat and raw milk. Gradually, as they got stronger, they began going on all fours, and afterwards began to run on all fours, just like squirrels.

    Children learn human language in the same way they learn other kinds of human behavior--by taking part in a cultural community.{#blank#}5{#/blank#}

A. From this viewpoint, all human groups have a culture.

B. These children were the ghosts described by the local people.

C. This statement is well supported by some well-written cases.

D. Human beings can only develop human abilities by the local people.

E. Culture refers only to the high art and classical music of a particular society.

F. Close at its heels there came another terrible creature exactly like the first, but smaller in size.

G. They learn a certain human languages as well as certain kinds of human behavior through their membership in a certain cultural community.