题目内容
【题目】Please remember _______ the computers down when you leave the office.
A. to shut B. shuts C. shutting D. shut
【答案】A
【解析】
试题分析：句意：你离开办公室时，请记住关闭电脑。Remember doing sth记得做过某事；remember to do sth记住做某事，所以选A。
【题目】
Lab work is fun but you must be careful. Listen carefully when your teacher reads and explains（解释）the rules before your first lab lesson.
LAB RULES | |
Throughout the lessons | Do not enter the science lab without the teacher's permission(允许）. No food or drinks are allowed in science lab. |
Before the experiment | Read all instructions carefully before every experiment. Prepare all apparatuses (仪器)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 how to use the apparatuses or how to operate（操 作）, ask your teacher for help. Never smell or taste chemicals（化学药品）unless（除非）your teacher gives permissions. |
After the experiment | Throw waste materials into proper waste baskets Wash all apparatuses after use and return them to the places where they were. Never smell or taste chemicals（化学药品）unless（除非）your teacher gives permissions. |
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 lesson.
A.beforeB.sinceC.duringD.after
【2】It is necessary for you to __________ before every experiment.
A.read all instructions carefullyB.take enough food and drinks
C.smell chemicals immediatelyD.talk with your classmates
【3】If you are not: sure how to use the apparatuses, __________________.
A.read the rules carefullyB.try them again and again
C.ask your teacher for helpD.return all apparatuses to the places where they were
【4】The underlined word "spill" means ___________________.
A.take care ofB.run out ofC.fall offD.pour out in drips
【5】You should put the waste materials into the ____________.
A.packetB.paper bagC.binD.
【6】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
