【推荐3】In a remote village, selling chestnuts was the main source of livelihood for local villagers. In late autumn, the hills were covered by the trees and chestnuts were _______from the branches of the trees，which_______with the wind attracting local villagers to_______them at this time of year.

The villagers took the chestnuts, carried them home and _______them out. The whole family sifted (筛) and sorted them according to their_______, and then transported them to the city for wholesale or retail. Every villager knew that if they wanted to sell for a good price, what really_______was to send the selected chestnuts to the market first. Many families, which were short of_______, would go to the nearby villages to hire workers with high_______.

Still, to many people's _______ , there was a young man in the village who could never need help,________ he had limited hands. He lived with his blind and old mother. He always arrived at the market one step ahead of the other ones ________ he could sell out of all the chestnuts and then happily drove back with his truck________.

The secret of the young man was: after picking chestnuts, he put them ________into a sack (麻袋) and carried them to the truck. When he set out，he chose the road, ________and bumpy (不平的) to go, ________the small ones would jump to the ________of the bag and the larger ones would stay on the top of the bag. It would save time for classification and selection. When inquired how he found the way, the young man________: “If you put your heart into it, you will find the right way. This is not an accident but a(n) ________result.”

There will always be people who get ________or complain when they hear bad news. As a matter of fact, if you use your head，you will be ________ to the people and things in the environment. When you turn your mind into action to move forward step by step, you can also create a new world for yourself.

【推荐1】For thousands of years, people have known that the best way to understand a concept is to explain it to others. “While we teach, we _______, ”said Roman philosopher Seneca. Now scientists are bringing this ancient _______ up-to-date. They’re _______ why teaching is such a fruitful way to learn.

Researchers have found that students who teach others work harder to _______ the material, and apply it more _______. Student teachers score higher on tests than pupils who’re learning only for themselves. But how can children, _______ learning themselves, teach others? One answer: They can teach younger kids. Some studies have found that first-born children are more _______ than their later-born siblings(兄弟姐妹). This _______ their higher IQs result from the time they spend teaching their siblings.

Now educators are experimenting with ways to _______ this model to schoolwork. They engage college undergraduates to teach computer science to high school students, who then ________ instruct middle school students on the ________. But the most cutting-edge tool is the “teachable agent”—a computerized character who learns, tries, makes mistakes and asks questions just like a real-world ________. Computer scientists have ________ an animated(动画的) figure called Betty’s Brain, who has been “taught” about science by middle school student. Student teachers are motivated to help Betty ________ certain materials. While preparing to teach, they organize their knowledge and ________ their understanding. And as they explain the information to it, they identify problems in their own ________.

Feedback from the teachable agent ________ improves the teachers’ learning. The agents’ questions drive student teachers to think and explain the materials in different ________, and watching the agent solve problems allows them emotions one experiences into action. ________, it’s the emotions one experiences in teaching that help learning. Student teachers feel ________ when their teachable agents fail, but happy when these pupils succeed as they gain pride and satisfaction from someone else’s achievement.

【推荐1】A new cafe culture is forming in and around San Francisco, California. A growing number of coffeehouses there are banning paper cups.

_____ , they are using glass containers or creating "bring your own" cup policies. The movement started among neighborhood cafes in an effort to ______________ waste. Now it is gaining ______________ from large businesses in the city-and around the country.

The Blue Bottle Coffee company plans to ______________ using paper cups at two of its stores in 2020. The move is part of a promise to produce "zero______________ " by the end of the year. ______________ will have to bring their own cups or pay a(n) ______________ $3 to $5 for a reusable cup. They can keep the cup or ______________ it to get their money back.

The company's CEO, Bryan Meehan, said that the new program would help ______________ the company on how to expand (扩展) its policy nationwide. He said, "We may______________ some business, because some of our guests won't like it, but we're prepared for that."

Larger coffee and fast-food businesses around the U.S. are feeling a sense of urgency to be more environmentally ______________ . Today's paper cups for hot drinks are not only made from paper, but they also have plastic to ______________ leaking (渗漏). This makes them difficult to recycle. It is unlikely that large national food and drink companies will stop using paper cups ______________ or ask all customers to bring their own. So they are______________ other solutions. Starbucks and McDonald's have ______________ $10 million to develop the "recyclable cup of the future". The result is expected to be recyclable and to break down naturally.

【推荐3】Reading good books is one of the greatest pleasures in life. It ________our happiness when we are cheerful. and lessens our sorrow when we are sad. A good book may absorb our attention so   ________ that for the time being we forget our surroundings.

Whatever may be our main purpose in reading, good books should never fail to give us________. With a good book in our hands we will never be________ .Whether the characters in the book are taken from real life or are purely________· they may become our companions and make us laugh. The people we meet in books may ________ us either because they are similar to our close friends or because they present unfamiliar types whom we are glad to welcome as new acquaintances. Our human friends sometimes ________ us, but the friends we make in books always respect us. By turning the pages we can ________ them without any fear of hurting their feelings. When our human friends ________ us, good books are always there to give us sympathy and encouragement.

One of the most valuable gifts from books is ________ . Few of us can travel far from home, but all of us can lead varied lives through the pages of book. When we wish to ________from the dull realities of everyday life, a book will help us when nothing else can. To travel by book we don’t have to ________and save a lot of money. Through books we may get the thrill of adventure without________ . We can climb high mountains or cross the hot sands of the desert.________ , through books the whole world is ours for the asking. The ________ of our literary experiences are almost unlimited.