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 Laboratory　work　is　your　chance　to　learn　science　firsthand.　It　can　be　fun　but　you　must　be　careful　to　prevent　injury.　Listen　closely　when　your　teacher　reads　and　explains　the　rules　before　your　first　lab　lesson.

    LABORATORYRULES

    Throughout　the　lesson

    ·Do　not　enter　the　science　lab　without　the　teacher’s　permission.·No　food　or　drinks　are　to　be　alowed　in　the　science　lab.

    Before　the　Experiment

    ·Read　al　instructions　carefuly　before　every　experiment.

    ·Prepare　al　apparatus（儀器）and　arrange　them　so　that　you　wil　not　knock　them　over　while　doing　the　experiment.

    During　the　Experiment

    ·If　you　are　unsure　of　how　to　use　any　apparatus　or　how　to　operate,　ask　your　teacher　for　help.·Never　smel　or　taste　chemicals　unless　your　teacher　gives　permission.

    After　the　Experiment

    ·Wash　al　apparatus　after　use　and　return　them　to　the　places　where　they　were.

    ·Throw　waste　materials　in　proper　waste　baskets.　　　　First　Aid　　　　

    ·Report　al　accidents　to　your　teacher　immediately.

    ·If　you　spil（ 濺 出 ）any　chemicals　onto　your　body　or　clothing,　wash　with　plenty　of　water　and　report　to　your　teacher.

   1.　Your　teacher　wil　probably　tel　you　the　rules　above　_____　the　first　lab　lesson.

    A.　before　　　　　B.　since　　　　C.　during　　　　D.　after

2.　Before　every　experiment,　you　should　_____.

    A.　taste　the　chemicals　first

    B.　clean　al　the　apparatus

    C.　read　al　instructions　carefuly

    D.　report　al　the　accidents　to　the　teacher

  3.　When　you　are　not　sure　how　to　use　al　apparatus,　_____.

    A.　try　them　on　your　own

    B.　read　the　rules　carefuly

    C.　ask　your　teacher　for　help

    d.　put　them　back

 4.　It　is　clear　that　you　can　_____.

    A.　 bring　food　into　the　lab

    B.　enter　the　lab　anytime

    C.　smel　chemicals　as　you　like

    D.　learn　science　directly　in　the　lab

    5.　If　you　get　chemicals　on　the　clothing,　you　can　find　ways　to　solve　it　in　the　part　_____.

    A.　Before　the　Experiment

    B.　First　Aid

    C.　During　the　Experiment

    D.　After　the　Experiment

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　　A woman was eating in a restaurant. She asked the waiter to do many 1 for her. Now she was 2 the waiter a lot of trouble. 3 , she asked the waiter to turn on the air conditioner(空調(diào)) because she 4 too hot. Then she asked him 5 it off because she was too cold. This went on and on for 6 half an hour.

　　But the waiter was very kind and 7 . He did everything the woman asked 8 to do without getting angry. 9 , someone else in the restaurant asked why the 10 didn't just throw the woman out. “Oh, I don't care,” the waiter said, smiling. “We don't even have an air conditioner.”

At one time, making a film was an expensive activity only for a small group of people and film companies. Not only were the tools and machines expensive but the cost of film was also far greater than most people could afford. However, modem technology has c 92　 all that.

　 New technology has really opened up the world of film-making for film fans. Now a camera

does not cost m 93　 and most young people are certainly able to pay for it. So all you need is to get one for yourself. With that, you may then start your own film-making.

　 However, film-making is t 94　 work. You probably need many other people to help you.

For example, the p　 95　 of actors and actresses is very important in your film. Of course, these actors and actresses may be your schoolmates, friends or family members. You don’t even need to pay them a cent while they are glad to be part of your job.

　 B 96　 , you need to make up a story. Can you write your own one? If you have good imagination, you can create an attractive story e　 97　 . Many world-famous film makers and producers are also good story-writers. If not, perhaps you need someone else to write it for you.

An excellent story is the key to making a s 98　 film.