Many teachers believe that the responsibilities for learning lie with the student. {#blank#}1{#/blank#} a long reading assignment is given, instructors expect students to be familiar with {#blank#}2{#/blank#} (inform) in the reading even if they do not discuss it in class or take an examination. The ideal student is considered to be one who is motivated to learn for the sake of learning, not the one interested only in getting high grades. Sometimes homework is returned {#blank#}3{#/blank#} brief written comments but without a grade. Even if a grade is not given, the student is {#blank#}4{#/blank#} (responsibility) for learning the material assigned. When research {#blank#}5{#/blank#} (assign), the professor expects the student to take it actively and to complete it with minimum guidance. It is the student's responsibility to find books, magazines, and articles in the library. Professors do not have the time to explain {#blank#}6{#/blank#} a university library works; they expect students, {#blank#}7{#/blank#} (especial) graduate students, to be able to exhaust the reference origins in the library. Professors will help students who need it, but prefer that their students should not be too dependent on them. In the United States, professors have many other duties {#blank#}8{#/blank#} teaching, such as administrative or research work. Therefore, the time {#blank#}9{#/blank#} a professor can spend with a student outside of class {#blank#}10{#/blank#} (limit). If a student has problems with classroom work, the student should either approach a professor during office hours or make an appointment.

    In the United States, there were 222 people {#blank#}1{#/blank#}（report）to be billionaires（亿万富翁）in 2003. The {#blank#}2{#/blank#}（rich）of these is Bill Gates, worth at least $ 41 billion, who made his money{#blank#}3{#/blank#}starting the company Microsoft. Mr. Gates was only 21 years old{#blank#}4{#/blank#}he first helped{#blank#}5{#/blank#}（set up）the company in 1976. He was a billionaire by then. {#blank#}6{#/blank#}, there are still some other people who have made lots of money at even {#blank#}7{#/blank#}（young）ages. Other young people who have {#blank#}8{#/blank#}（strike）it rich include Jackie Cogan and Shirley Temple. Both of these child actors made over a million dollars {#blank#}9{#/blank#}（act）in movies before they were 14. But   the youngest billionaire is Albert von Thurn und Taxis of Germany, who, in 2001, inherited（继承）a billion dollars when he {#blank#}10{#/blank#}（turn）18!

    Crossword puzzles and exercise are just a few of the habits that improve memory best. But to {#blank#}1{#/blank#}(true) give your brain a push, you might want to take a simple tip to heart-and it's nothing you learned in school.

    So far, researchers from Waterloo University in Canada {#blank#}2{#/blank#}(discover) what may be the easiest way to improve your memory ever. Their research, recently {#blank#}3{#/blank#}( publish) in the journal Memory, suggests that reading out loud to yourself can increase your recall skills {#blank#}4{#/blank#}up to 15%.

    In the study, scientists asked 95 participants to test four {#blank#}5{#/blank#}(method): reading, silently, hearing someone else read, reading aloud and listening to a recording of oneself reading. Their result? The people{#blank#}6{#/blank#}read the information out loud showed the best retention(保持)rates—about 15%{#blank#}7{#/blank#}(high) in learning speed, in fact. You may want to add these brain-boosting foods that can improve memory to your diet, too.

    “Read{#blank#}8{#/blank#} needs to be remember out loud, and you'll remember it better. Yes, it's shat simple!” psychologist and study co-author Colin Macleod said.

    So next time when you're preparing for a big exam, spend some time{#blank#}9{#/blank#} (read) loud. Trust us. It might make you{#blank#}10{#/blank#}genius.

    In 1850, an American lawyer, Bethune, bought a slave to work in his home. The slave, a woman, had a small child{#blank#}1{#/blank#}(call) Tom, who was blind.

    One day, Bethune {#blank#}2{#/blank#}(walk) around his garden when he heard music coming from the house. He went inside and found young Tom playing on the family piano. Bethune {#blank#}3{#/blank#}(immediate) realized that the boy, who was only four, had special abilities. He asked a band of {#blank#}4{#/blank#}(music) to come to the house and play in front of {#blank#}5{#/blank#} (he). Tom reproduced perfectly the music he had heard. Tom was indeed an unusual boy.

    In 1857, "Blind Tom" took part {#blank#}6{#/blank#} his first public performance. The reviews were so good {#blank#}7{#/blank#} Bethune took him on a tour of the US. Three years later, Blind Tom {#blank#}8{#/blank#} (invite) to the White House to perform for the president. Over the next forty years, Tom performed {#blank#}9{#/blank#}(enjoy) shows all over the US and other countries. His concerts were {#blank#}10{#/blank#} mixture of classical music and his own compositions.

    Crows(乌鸦) are remarkably intelligent birds. Now these feathered geniuses are given a job: Six crows have been trained to pick up rubbish in the Puy du Fou historical theme park in western France. Whenever the six crows put cigarette ends or other small {#blank#}1{#/blank#} (piece) of trash in a special container, it offers a treat to reward the crows {#blank#}2{#/blank#} their efforts.

    The idea came from one of the park's employees, Christophe. In 2012, the theme park held a show during which the crows picked up roses and brought them to a “princess”. It was the show {#blank#}3{#/blank#} inspired him. Since then, six crows {#blank#}4{#/blank#}(raise) and trained to do the same with rubbish. The training system is similar to the one for testing crows' intelligence, {#blank#}5{#/blank#} a food dispenser(分发器) gives away a food reward when a crow {#blank#}6{#/blank#} (correct) performs a task. Christophe also introduced other species of birds to go through the training. {#blank#}7{#/blank#} (compare) with other birds, crows are much cleverer.

    The purpose of {#blank#}8{#/blank#} (train) the crows is to educate the people to reflect on themselves. Since the birds are able to protect the environment, we need to care about it too. “It is {#blank#}9{#/blank#} funny way to remind people not {#blank#}10{#/blank#}(throw) the rubbish everywhere,” said Christophe.