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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£¨ÒÇÆ÷£©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£¨ ½¦ ³ö £©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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 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£¨ÒÇÆ÷£©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£¨ ½¦ ³ö £©any¡¡chemicals¡¡onto¡¡your¡¡body¡¡or¡¡clothing,¡¡wash¡¡with¡¡plenty¡¡of¡¡water¡¡and¡¡report¡¡to¡¡your¡¡teacher.
¡¾Ð¡Ìâ1¡¿¡¡Your¡¡teacher¡¡wil¡¡probably¡¡tel¡¡you¡¡the¡¡rules¡¡above¡¡_____¡¡the¡¡first¡¡lab¡¡lesson.

A£®beforeB£®sinceC£®duringD£®after
¡¾Ð¡Ìâ2¡¿¡¡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
¡¾Ð¡Ìâ3¡¿¡¡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
¡¾Ð¡Ìâ4¡¿¡¡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
¡¾Ð¡Ìâ5¡¿¡¡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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 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£¨ÒÇÆ÷£©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£¨ ½¦ ³ö £©any¡¡chemicals¡¡onto¡¡your¡¡body¡¡or¡¡clothing,¡¡wash¡¡with¡¡plenty¡¡of¡¡water¡¡and¡¡report¡¡to¡¡your¡¡teacher.
¡¾Ð¡Ìâ1¡¿¡¡Your¡¡teacher¡¡wil¡¡probably¡¡tel¡¡you¡¡the¡¡rules¡¡above¡¡_____¡¡the¡¡first¡¡lab¡¡lesson.
A£®beforeB£®sinceC£®duringD£®after
¡¾Ð¡Ìâ2¡¿¡¡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
¡¾Ð¡Ìâ3¡¿¡¡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
¡¾Ð¡Ìâ4¡¿¡¡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
¡¾Ð¡Ìâ5¡¿¡¡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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 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£¨ÒÇÆ÷£©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£¨ ½¦ ³ö £©any¡¡chemicals¡¡onto¡¡your¡¡body¡¡or¡¡clothing,¡¡wash¡¡with¡¡plenty¡¡of¡¡water¡¡and¡¡report¡¡to¡¡your¡¡teacher.
СÌâ1:¡¡Your¡¡teacher¡¡wil¡¡probably¡¡tel¡¡you¡¡the¡¡rules¡¡above¡¡_____¡¡the¡¡first¡¡lab¡¡lesson.
A£®beforeB£®sinceC£®duringD£®after
СÌâ2:¡¡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
СÌâ3:¡¡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
СÌâ4:¡¡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
СÌâ5:¡¡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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My mother sets a good example for me. She is always ready to ¡¡¡¡41¡¡ .

The railroad tracks (¹ìµÀ) were within a mile of our house. ¡°Beggars¡±£¨Æòؤ£© would ¡¡¡¡42¡¡ the doors in our neighborhood in summer asking for food. They were often turned away. Others simply ignored (ºöÂÔ) the knocks.

My mom always went to the door smiling. She would ¡¡¡¡43¡¡ them to come in and have something to eat. She would ¡¡¡¡44¡¡ a beautiful tablecloth and set the table as carefully as she did for¡¡ 45¡¡ people. She would pour their coffee and pile (·ÅÖÃ) their plates with food and dessert. Usually she gave a lot of food to them ¡¡¡¡46¡¡ they were ready to go. Sometimes she would give the newspaper to those who asked about ¡¡¡¡47¡¡ .

She listened to those who wanted to talk. She¡¡ 48¡¡ asked what led them to be in this situation (×´¿ö). It did not matter. She saw only the need. She would say, ¡°When I was young, my father was walking around for any work to ¡¡ 49¡¡ us. Some kind people helped him. I am just repaying (»Ø±¨) their ¡¡ 50¡¡ . I can¡¯t offer them money, but I can see they do not leave hungry.¡±

My mom is quite a lady. She is a great mother!

41. A. helping others¡¡¡¡¡¡ B. help others¡¡¡¡ C. to thank others¡¡ D. thanking others

42. A. knock into¡¡¡¡¡¡¡¡ B. open¡¡¡¡¡¡¡¡ C. close¡¡¡¡¡¡¡¡¡¡ D. knock at

43. A. invite¡¡¡¡¡¡¡¡¡¡¡¡ B. order¡¡¡¡¡¡¡¡ C. asked¡¡¡¡¡¡¡¡¡¡ D. told

44. A. take¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. bring¡¡¡¡¡¡¡¡ C. put¡¡¡¡¡¡¡¡¡¡¡¡ D. carry

45. A. any ¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B .all¡¡¡¡¡¡¡¡¡¡ C. any other¡¡¡¡¡¡ D. any the

46. A. when¡¡¡¡¡¡ ¡¡¡¡¡¡B. while¡¡¡¡¡¡ ¡¡¡¡C. after¡¡¡¡¡¡¡¡¡¡ D. what

47. A. money¡¡¡¡¡¡¡¡¡¡¡¡ B. drinks¡¡¡¡¡¡¡¡ C. meals¡¡¡¡¡¡¡¡¡¡ D. work.

48. A. always¡¡¡¡¡¡¡¡¡¡¡¡ B. usually¡¡¡¡¡¡¡¡ C. never¡¡¡¡¡¡¡¡ D. often

49. A. feed¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. teach¡¡¡¡¡¡¡¡¡¡ C. educate¡¡¡¡¡¡¡¡ D. fed

50. A. kind¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. kindly¡¡¡¡¡¡¡¡ C. friendly¡¡¡¡¡¡¡¡ D. kindness

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