In class, your teachers will talk about topics that you are studying. The information they provide will be important for you when you take tests. So you must take good notes from what your teachers say.

    Here are the three stages(阶段)of taking notes and what you should do during each stage.

    1. Before Class

    Review your notes you have taken before you come to class. This will be good for remembering what was covered. Get you ready to understand new information your teacher will provide.

    2. During Class

    Keep your attention on what your teacher is saying and “the signal words” that tell you, what your teacher is going to say and it is important to write in your notes. Examples of signal words are “The most important point…” and “Remember that…” Be sure to include the information that your teacher repeats or writes on the blackboard. Write quickly so that you can include all the important information in your notes. Do this by writing abbreviations(缩略词)such as med for medicine, using symbols such as ％ for percent, and writing short sentences.

    3. After Class

    Rewrite your notes to make them more complete and accurate(准确的)by changing abbreviations into whole words, symbols into words, and shortened sentences into longer sentences. Use them to answer your questions. If necessary, ask your teacher for help.

    Sally and Susan are sisters. They are the same in some ways, but different in other ways.

    Both Sally and Susan have short and dark hair. They are both outgoing and popular. Sally is older and smarter than Susan. She reads more books and likes to talk about the things she reads. Sally isn't athletic.

    Susan is much more athletic than Sally. She plays basketball and volleyball well. And she enjoys watching sports on TV. Sally likes to watch sports, too, but she doesn't like to play them. Both sisters like school and get good grades at school. But Sally is more serious about her homework. Both of them like shopping and playing computer games on weekends.

根据短文内容，回答下列问题。

    Long ago, people did not need money. {#blank#}1{#/blank#}

    As time passed, people learned to raise animals and crops. Sometimes, families produced more than they needed, so they started to trade (交易) with other families. Later, people began to use money as a means of exchange. {#blank#}2{#/blank#}They used shells, rice, salt, large stones, etc.

    During the 600s BC, people began using coins as money. They soon found that coins were easier to carry than goods (货物) and lasted a long time. {#blank#}3{#/blank#}

    The Chinese were the first to use paper money, probably as early as the eleventh century. The Italian traveller Marco Polo saw the Chinese using paper money when he visited China in the 1200s. {#blank#}4{#/blank#}

    Today, we have many ways to pay for things. {#blank#}5{#/blank#}Often, people prefer to pay for things by card. Paying with a card is easier and safer than carrying around a lot of "real" money.