Question

【題目】根據(jù)表格內(nèi)容，選擇最佳答案。 Lab work is fun but you must be careful. Listen carefully when your teacher reads and explains the rules before your first lab lesson.

LAB RULES
Throughout the lessons	* Do not enter the science lab without the teacher's permission(允許). * No food or drinks are to be allowed in the science lab.
Before the Experiment	* Read all instructions carefully before every experiment(實(shí)驗(yàn)). * Prepare all apparatus(儀器)and put them in right places 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 into proper waste baskets.
First Aid	* Report all accidents to your teacher immediately. * If you spill any chemicals onto your body or clothing, wash with plenty of water and report to your teacher.

（1）You must know the LAB RULES ______ the first lab lessons.
A.before
B.since
C.during
D.after
（2）It is necessary for you to ______ before every experiment.
A.read all instructions carefully
B.take enough food and drinks
C.smell chemicals immediately
D.talk with your classmates.
（3）If you are not sure of how to use any apparatus, ______.
A.read the rules carefully
B.try them again and again
C.ask your teacher for help
D.return all apparatus to the places where they were
（4）The underlined word “spill” means ______.
A.照射
B.傷害
C.摔下
D.濺出
（5）When you are in the science lab, you mustn't ______.
A.be careful in order to prevent injury
B.listen carefully when your teacher explains the rules
C.taste chemicals without the teacher's permission
D.throw waste materials into proper waste baskets

Answer 1

【答案】
（1）A
（2）A
（3）C
（4）D
（5）C
【解析】文章大意：這篇短文主要介紹了做實(shí)驗(yàn)是有趣的但是你必須小心。在上第一節(jié)實(shí)驗(yàn)課前一定要認(rèn)真聽老師讀的及解釋的規(guī)則。作者介紹了實(shí)驗(yàn)室的一些規(guī)則。
（1）細(xì)節(jié)理解題。根據(jù)Listen carefully when your teacher reads and explains the rules before your first lab lesson.可知上第一節(jié)實(shí)驗(yàn)課前要認(rèn)真聽老師讀和解釋的實(shí)驗(yàn)規(guī)則。故選A。
（2）細(xì)節(jié)理解題。根據(jù)Read all instructions carefully before every experiment(實(shí)驗(yàn)).故選A。
（3）細(xì)節(jié)理解題。根據(jù)If you are unsure of how to use any apparatus or how to operate, ask your teacher for help.故選C。
（4）詞義猜測(cè)題。根據(jù)假設(shè)的情景If you spill any chemicals onto your body or clothing,及wash with plenty of water and report to your teacher.可知如果把藥品濺到了身體或者衣服上，要用大量的水沖洗，并且報(bào)告老師。故選D。
（5）是非判斷題。根據(jù)Never smell or taste chemicals unless your teacher gives permission.可知沒有老師的允許不可以聞或者嘗藥品，故選C。