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．before

B．since

C．during

D．after

【小题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

【小题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
【小题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

【小题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．before

B．since

C．during

D．after

【小题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

【小题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
【小题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

【小题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

补全短文。（共10小题；每小题1分，计10分）
用方框内所给单词的适当形式填空，使短文完整、通顺。

thousand,  many,  change,  help,  make, in,  close,  they,  also,  little

Saving electricity and water is important in our life. There are 【小题1】　　　　 little things for us to do at home to help save the Earth. They’re small, but  【小题2】　　　　 of people do the same thing and  【小题3】　　　　 a great difference. By making some small 【小题4】　 　 to the way you do things at home, you are helping our planet day by day.
You can spend 【小题5】　　　　 and improve your health better at the same time, so
【小题6】　　　　 to save the environment is a good exercise!
You can use windows to make the house good to live in. You can keep windows and doors 【小题7】　　　　 to keep the house warm in winter and open in summer. The wind will often keep you as cool as 【小题8】　　　　 the open air.
And you must do something to save water. The water that you use in the kitchen can
【小题9】　　　　 be used to wash the rice or water the flowers, and it’s very good for 【小题10】　　　　. Please always remember to turn off the lights when you leave.

A: What do people usually do on Chinese New Year, Lingling?

B: Well, most people buy (1)　　　　　 and give them to others.

A: That’s great. I love getting presents. Can I (2)　　　　 the present I receive right at the time?

B: I’m afraid you must wait! In China, you are not (3)　　　　　 to open the present at once. You must wait and open it (4)　　　　　. And you must receive it with both hands.

A: Really? That’s interesting. (5)　　　　　 in Britain, we can use one hand to receive the present. Thanks for telling me so much.

B: My pleasure.