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　　One way that scientists learn about man is by studying animals．In this lab, the scientists are studying the relationship between diet and health．

　　They are studying the relationship between the amount of food the mice eat and their health．The mice are in three groups．All three groups are receiving the same healthy food．The first group is eating one cup of food each day, the second group is eating two cups, and the third group is eating three cups．

　　After three years, the healthiest group is the one that is only eating one cup of food each day．The mice in this group are a little thinner。But they are more active．Most of the day, they are running, playing with one another．Also, they are living longer．Mice usually live for two years．Most of the mice in this group are still alive after three years．

　　The second group of mice is healthy, too．They are active, but not as active as the thinner mice．They are only living about two years．

　　The last group of mice is receiving more food than the other two groups．Most of the day, these mice are eating or sleeping．They are not very active．These mice are living longer than the scientists thought－about a year and a half．But they are not healthy．They are sick more often than the other two groups．

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　　New rules and behavior standards(行為規(guī)范)for middle school students came out in March．Middle school is going to use a new way to decide who the best students are．The best students won’t only have high marks．They will also be students who don’t dye(染)their hair, smoke or drink．The following are some of the new rules．

　　Tell the truth．Have you ever copied someone else’s work in an exam?Don’t do it again! That’s not something an honest student should do．If you have played computer games for two hours in your room, don’t tell your parents you have done homework．

　　Do more at school．Good students love animals and care for other people．April is Bird-Loving Month in China．Is your school doing anything to celebrate?You should join! That way, you can learn more about animals and how to protect them．When more people work together, it makes it more fun for everyone．

　　Have you ever quarreled(吵架)with your teammates when your basketball team lost?Only working together can make your team stronger．Be friendly to the people you are with．Try to think of others, not only yourself．

　　Be open to new ideas．Have you ever thought that people could live on the moon?Don’t look down on new ideas．Everyone’s ideas are important．You should welcome them, because new ideas make life better for everyone．

　　Protect yourself．Has someone ever taken money from one of your classmates?Don’t let it happen to you．If you have to go home late, you should let your parents know．

　　Use the Internet carefully．The Internet can be very useful for your studies．But some things on the Internet aren’t for students, so try to look at Web pages that are good for you．You can use the Web for fun or homework．Can’t you find any good Websites for children?Here are some：

　　http：//kids.eastday.com　　http：//www.chinakids.net.com　　http：//www.cycnet.com

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　　A rich American went into a shop in London．He wanted to buy a nice looking watch．He saw a watch and he liked it．But the shop owner asked 500 dollars for it．Just then a young man came in, took the watch out of the owner’s hand and ran out with it．It all happened in a minute．When the owner ran out into the street, the young man was already gone．

　　The American went on．At the next corner, he saw the young man with that watch in his hand．“Do you want to buy a fine watch, sir?” he said in a low voice, “It’s made in Germany．It’s only 100 dollars．”

　　“The young man didn’t know I saw what happened in the shop just now,” he thought．The American paid at once and went back to his room with the watch．He was happy and told his friend about the fine watch．His friend took a look at his watch and started laughing．He said, “You are a fool．This watch isn’t worth even 10 dollars．”

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There are four hats．They are red, yellow, green and white．They are Mike’s, Bill’s, Tom’s and John’s．Tom’s hat is not yellow, green or red．John’s hat is not green．And Mike’s hat is not yellow or green．What colours are their hats?

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Hello Sandy,

　　We have just returned from our holiday．We went with our friends Edward Smith and his wife Tina to the Yorkshire Moors．This is a beautiful place．It is a natural park．There are lots of places to walk on the tops of the hills, miles of grassland with no people, just sheep and birds．

　　Edward, who had just come out of hospital, could not walk as far as be used to．However this meant that we walked in the mornings, and then stopped at a cafe for lunch each day, before returning to the place we live．Edward and I slept in front of the fire all afternoon, while the ladies went for another walk．Very pleasant!

　　I have taken lots of photos from the place we live, across the valley(峽谷)below us, of the morning sunrise, and the mist in the valley．Also, in England, the old steam powered trains(蒸汽火車)are very popular．I have taken many photos of the train and from it．

　　Yesterday we had the first snow of this winter．It is very early(we usually expect snow in January)．It rained all day, then snowed in the evening．Today we have bright sunshine!

　　Both Jenny and I are well I don’t know if I told you, in the last e-mail, that Jenny is now working in a hotel．Although she has to work hard, people there are nice and she is enjoying the work．

　　Please write to us to tell us your news．

Yours,

Victor

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　　Miss Wu is a young teacher of English in China．She loves teaching very much．One day when she was giving an English lesson, she found the headmaster sitting at the back of the classroom．After class, the headmaster told her that he came to her class to find out how much English and how much Chinese she was using．The result was about half English and half Chinese．She was using Chinese when she gave instructions to her students and when she wanted to get feedback(反饋)from her students．The headmaster told her that she should use more English in her class．

　　Miss Wu made a plan like this：

　　·talk with an Englishman every Sunday for two hours to learn more English expressions;

　　·write some English expressions on cards．These cards not only remind her to use English in class, but also help her remember some expressions;

　　·have a five-minute talk in English with students before class．

　　She used body language to help her if students could not understand．

　　One year later, she found she could use English freely in class．

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　　It looks like a mobile phone, but the service is much cheaper ．It acts like a mobile phone, but only in your own cite ．Beyond the city walls, it’s useless．

　　“Little Smart”, also called“xiaolingtong”has always been compared to the mobile phone．But in fact it is more like one of those cordless phones(無(wú)線電話)used around the home．The only difference is that this one reaches much further than from the bathroom to the living room．It can travel across a whole city．

　　Cheap costs are the main reason for the success of Little Smart．It costs 25 yuan a month for the line and about 0.1 yuan per minute to use．A mobile phone, on the other hand, can cost four or five times as much．What’s more, unlike mobile phones, there’s no fee for incoming calls．So these low charges have attracted many users．

　　But, Little Smart is not really that smart．Users often complain about its bad voice quality(質(zhì)量)．And there are not as many questions to pick up its signals as there are for mobile．“I couldn’t receive a photo call if I was on a bus,” said Li Ping, a user in Hang Zhou．“It worked fine when I stood still, but there were breaks in signal when I was moving．”

　　Scientists are trying to make Little Smart more easy to use．Messaging and Internet even has a colour screen．

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　　Perhaps you have been told about some habits which keep a person from reading fast and have been strongly asked to break the habits which you might have．Do you still have any of these bad habits?Check yourself by answering“yes”or“no”to these questions：

　　1．Do you move your lips when reading silently?

　　2．Do you point to words with your finger as you read?

　　3．Do you move your head from side to side as you read?

　　4．Do you read one word at a time?

　　If you answer “yes” to any of these questions, start at once to break the habits．If you move your lips, hold your fingers over them, or hold a piece of paper between your lips while you are reading．Then if your lips move, you will know it and can stop them．If you point to words, hold the two sides of your book, one side with your left hand, the other side with your right hand．Then you will not have a free finger to use in pointing while reading．If you move your head, place your chin(下巴)in one hand, and hold your head still．If you read no more than one or two or three words at a time, you need to work very hard in learning to take in more words at each glance(一瞥)as your eyes travel across the lines of words．

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