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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(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.beforeB.sinceC.duringD.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

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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(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

 

查看答案和解析>>

 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.beforeB.sinceC.duringD.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

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阅读理解

  In Singapore, many middle school students spend a lot of their time on their studies.Good education is often regarded as a ticket to success in their future.So many of these students try their best to get a good mark in their examinations.They have a lot of homework every day and exams are a big headache.Sometimes some of them are even made to go to remedial(补习的)classes after school.

  Schools run programmes outside school hours.The students can take part in sports and games, music and dance, hiking and rock-climbing, etc.They are also very active in community service(社区服务).

  In their spare time, most students like to listen to pop music.Hollywood blockbusters(大片).Hong Kong and Singapore movies are very popular among them.They understand IT very well.Some of them also spend their free time surfing the Internet, e-mailing their friends, playing computer and video games.

  They sometimes go to cafes, fast-food restaurants, shopping centers and big bookstores.

  So, it looks like life as a middle school student in Singapore is not easy but it is rich and colorful.

(1)

What is NOT mentioned in the passage?

[  ]

A.

Schoolwork.

B.

After-class activities.

C.

Subjects

D.

Things to do in the spare time.

(2)

Why do students work hard at school in Singapore?

[  ]

A.

Because they have a lot of homework.

B.

Because they have to go to remedial classes.

C.

Because they want to get a good future.

D.

Because they have many outside school activities.

(3)

What does the underlined sentences mean in the first paragraph?

[  ]

A.

Students are afraid of exams.

B.

Students have a headache before an exam.

C.

Students have too many exams.

D.

Students are in poor health because of exams.

(4)

Programmes outside school hours are ________.

[  ]

A.

the same as spare time activities

B.

remedial classes after school

C.

sports actives

D.

popular among students

(5)

What do you know from the last sentences?

[  ]

A.

The middle school students live an easy life in Singapore.

B.

The middle school students’ life in Singapore is amazing.

C.

The middle school students’ life in Singapore is boring.

D.

The middle school students’ life in Singapore is hard, but interesting.

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  In Canada and the United States, People enjoy entertaining(请客)at home.They often invite friends over for a meal, a party, or just for coffee and conversation.

  Here are the kinds of things people say when they invite someone to their home:

  “Would you like to come over for dinner Saturday night?”

  “Hey, we’re having a party on Friday.Can you come?”

  To reply to an invitation, either say thank you and accept, or say you’re sorry and give an excuse:

  “Thanks, I’d love to.What time would you like me to come?” or “Oh, sorry, I’ve tickets for a movie.”

  Sometimes, however, people use expressions that sound like invitations but which are not real invitations.For example:

  “Please come over for a drink sometime.”

  “Why not get together for a party sometime?”

  “Why don’t you come over and see us sometime soon?”

  They are really just polite ways of ending a conversation.They are not real invitations because they don’t mention a specific(确定的)time or date.They just show that the person is trying to be friendly.To reply expressions like these, people just say “Sure, that would be great!” or “OK.Yes, thanks.”

  So next time when you hear what sounds like an invitation, listen carefully.Is it a real invitaion or is the person just being friendly?

(1)

Why do Canadians and Americans often invite friends for meals at home?

[  ]

A.

Because they can save time.

B.

Because they can spend less money.

C.

Because they enjoy entertaining at home.

D.

Because they have modern and beautiful houses.

(2)

Which of the following is a real invitation?

[  ]

A.

“If you’re free, let’s go for a drink sometime.”

B.

“Please go to the cinema with me some day.”

C.

“Would you like to have a cup of tea with us sometime?”

D.

“I’ve two tickets here.Can you go to the concert with me?”

(3)

If people say“Let’s get together for lunch some day.”you just say, “________”

[  ]

A.

That would be nice.

B.

How about this weekend?

C.

Oh, sorry.I’m very busy.

D.

That’s great.I’ll be there on time.

(4)

People use “an unreal invitation” in order to show that ________.

[  ]

A.

they’re trying to be friendly

B.

they’re trying to be helpful

C.

they’re trying to make friends with others

D.

they haven’t got ready for a party yet

(5)

The passage is mainly about ________.

[  ]

A.

entertainment at home

B.

real invitations or not

C.

expressions of starting a conversation

D.

ways of ending a conversation

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