Have you ever heard of it? Does shopping with cash(现金)really help you lose weight? Some scientists have studied for years. The US scientists have{#blank#}1{#/blank#}(发现) that customers who take debit cards(借记卡)to the shops and{#blank#}2{#/blank#}(忘)their cash at home are more likely to take junk food from the{#blank#}3{#/blank#}(架子). That is to say, they are easy to get fat.

    There are two reasons leading to this {#blank#}4{#/blank#}(结果). First, people only think some kinds of food is delicious, but they don't consider whether it's healthy or not. {#blank#}5{#/blank#}(第二), cash payments are more painful than card payments for the customers, so this painful payment can stop them from buying{#blank#}6{#/blank#}(无论什么)they want.

    American scientists even think that one of the{#blank#}7{#/blank#}(恰当的)reasons why westerners are generally getting fat is that they are paying{#blank#}8{#/blank#}(用)debit cards most of time. In this case, it is easy for people to {#blank#}9{#/blank#}(变得)fat. You can find that cash is commonly used by the thin men, and debit cards are used by the fat men.

    Maybe those fat men would say {#blank#}10{#/blank#}(自豪地)that they are rich and they can buy anything they need.

    Peter and Mike are very good friends. They are in the same class at school. They often go to school and play t{#blank#}1{#/blank#}, and they often visit each other's home at weekends, too.

    Now they are b{#blank#}2{#/blank#} eight years old. Peter's mother has got a new baby. Peter is very glad to have a little brother, so he is always talking about his younger brother to Mike.

    At first Mike is very interested in the new baby because he doesn't have any sisters or brothers. But after some time he begins to get tired of Peter's endless talking about it. He also feels a little jealous (嫉妒) of his friend.

    One morning before class, when the two boys m{#blank#}3{#/blank#} at the school gate, Peter says to Mike cheerfully, "Do you know, Mike, my little brother, has put on nearly half a pound in weight this week."

    "That's not much at all," answers Mike. "I know a baby who can put on more than ten pounds a day."

    "Oh, that can't be t{#blank#}4{#/blank#}," answers Peter. "W{#blank#}5{#/blank#} baby is it?"

    "An elephant's," says Mike.