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（仪器）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（ 溅 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

 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（仪器）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（ 溅 出 ）any　chemicals　onto　your　body　or　clothing,　wash　with　plenty　of　water　and　report　to　your　teacher.
【小题1】　Your　teacher　wil　probably　tel　you　the　rules　above　_____　the　first　lab　lesson.

A．taste　the　chemicals　first

B．clean　al　the　apparatus

C．read　al　instructions　carefuly

D．report　al　the　accidents　to　the　teacher

A．bring　food　into　the　lab
B．enter　the　lab　anytime
C．smel　chemicals　as　you　like	D．learn　science　directly　in　the　lab

A．Before　the　Experiment

B．First　Aid

C．During　the　Experiment

D．After　the　Experiment

One Friday night, a poor young man stood at the train station. He played his violin and many people put 41  into the hat in front of him.　　
The next day, the young man came to the station 42  . But this time he took out a large piece of paper 43 some words on it. It said “Last night a lady 44  Mrs Sang put an important thing into my hat 45  . Please come for it.”　　
After about an hour, a middle-aged woman ran to the young man in a hurry and said, “You do come here. I know that you’re a(n) 46  man and will certainly come here.” They had a talk and the young man made sure she was the owner. Then he took out a lottery ticket and 47  it to the woman. Her husband bought a lottery ticket every day. Yesterday when she knew the lottery ticket he bought won, she was very 48  . The prize of the lottery ticket was $ 500,000. When she walked past the young man, she took out $50 and put it in the hat. 49  , the lottery ticket was also thrown in.　　
Later, someone asked the young man, “You play the violin every day to make money. Why didn’t you just take the prize of the lottery ticket for yourself?” the young man said，“Although I don’t have much money, I live happily. But if I 50  honesty, I won’t be happy forever.”　　
【小题1】 A. money       B. tickets          C. paper　　
【小题2】 A. instead       B. differently      C. again　　
【小题3】 A. for          B. with           C. over　　
【小题4】 A. introduced    B. spelled         C. named　　
【小题5】 A. by mistake     B. for mistake      C. on mistake　　
【小题6】 A. crazy         B. cool        C. honest　　
【小题7】 A. gave          B. lent            C. offered　　
【小题8】 A. surprising       B. happy          C. exciting　　
【小题9】 A. But            B. However      C. Therefore　　
【小题10】 A. have            B. win             C. lose　　

I am a middle-school student. Now let ___1___ tell you something ___2___ our classroom.

It's very ___3___. There are two maps ___4___ the back wall. ___5___ is a map of China.

___6___ is a map of the world (世界).

    There are ___7___ desks and chairs in our classroom. There is a big desk ___8___ the

teacher in the front of it. We ___9___ four classes in the ___10___ and two in the afternoon

    1. a. I　　　　　　b. my 　　　　　　　c. me　　　　　　d. we

    2. a. about　　　　b. in 　　　　　　　c. on 　　　 　　d. at

    3. a. small 　　 　b. big 　　 　　　　c. bigger 　　 　d. biggest

    4. a. in 　　　　　b. on 　　　　　　　c. under 　　　　d. over

    5. a. It 　　　　　b. It's 　　　　　　c. One 　　　　　d. one

    6. a. Other 　　 　b. Others 　　　　　c. Another 　　　d. The other

    7. a. fourty　　　 b. forty 　　 　　　c. forteen 　　　d. fourteenth

    8. a. for 　　　 　b. of　　　 　　　　c. to 　　　　　 d. about

    9. a. there is 　　b. there are 　　 　c. has 　　　　　d. have

    10. a. moning　　　b. mourning 　　　　c. morning 　　　d. moring