Question

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.

LABORATORY  RULES
Throughout the   lesson	·Do not   enter the science lab without the teacher’s permission. No food or drinks are   to be allowed in the science lab.
Before the   Experiment	·Read all   instructions carefully before every experiment. · Prepare   all apparatus（儀器）and arrange them so that you will   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 smell   or taste chemicals unless your teacher gives permission.
After the   Experiment	·Wash all   apparatus after use and return them to the places where they were. ·Throw waste   materials in proper waste baskets.
First Aid	·Report all   accidents to your teacher immediately. ·If you   spill（濺出）any chemicals onto your body or clothing,   wash with plenty of water   and report to your teacher.

1. 1.
   Your teacher will probably tell you the rules above ______ the first lab lesson
   1. A.
      before
   2. B.
      since
   3. C.
      during
   4. D.
      after
2. 2.
   Before every experiment, you should______.
   1. A.
      taste the chemicals first
   2. B.
      clean all the apparatus
   3. C.
      read all instructions carefully
   4. D.
      report all the accidents to the teacher
3. 3.
   When you are not sure how to use all apparatus,______.
   1. A.
      try them on your own
   2. B.
      read the rules carefully
   3. C.
      ask your teacher for help
   4. D.
      put them back
4. 4.
   It is clear that you can ______.
   1. A.
      bring food into the lab
   2. B.
      enter the lab at any time
   3. C.
      smell chemicals as you like
   4. D.
      learn science directly in the lab
5. 5.
   If you get chemicals on the clothing, you can find ways to solve it in the part ______.
   1. A.
      Before the Experiment
   2. B.
      First Aid
   3. C.
      During the Experiment
   4. D.
      After the Experiment

Answer 1

ACCDB
試題分析:本文講述了實(shí)驗(yàn)室的一些規(guī)章制度。一共包含五點(diǎn)，分別談?wù)摿俗鰧?shí)驗(yàn)前，做實(shí)驗(yàn)時(shí)，做實(shí)驗(yàn)后，以及萬(wàn)一突發(fā)情況發(fā)生如何急救。
1.細(xì)節(jié)理解題 句意:由文章第一句話可知，本題是在問(wèn)我們通常老師在什么時(shí)候告訴我們這些規(guī)則，由方框上面第一段可推斷，這些規(guī)章制度要在上第一節(jié)實(shí)驗(yàn)課前講述。故選A為正確選項(xiàng)。
2.細(xì)節(jié)理解題  由表格二的第一句Read all instructions carefully before every experiment.可知，應(yīng)該在每節(jié)實(shí)驗(yàn)前仔細(xì)地看這些說(shuō)明�？芍狢為正確選項(xiàng)。
3.細(xì)節(jié)理解題  由表格三If you are unsure of how to use any apparatus or how to operate, ask your teacher for help.可知，如果實(shí)驗(yàn)時(shí)不能確信怎樣使用這些儀器，應(yīng)問(wèn)老師�？芍狢為正確選項(xiàng)。
4.推理判斷題 本文是關(guān)于實(shí)驗(yàn)操作的規(guī)則，所以在實(shí)驗(yàn)室里能學(xué)到科學(xué)方面的知識(shí)。本文第一句話Laboratory work is your chance to learn science firsthand.告訴我們實(shí)驗(yàn)室學(xué)習(xí)給你第一手機(jī)會(huì)去學(xué)習(xí)自然科學(xué)�？芍狣為正確選項(xiàng)。
5.細(xì)節(jié)理解題 由最后一個(gè)表格可知，它介紹了化學(xué)藥品濺在衣服上的處理辦法�？芍狟為正確選項(xiàng)。
考點(diǎn)：科普環(huán)保類短文閱讀。