题目内容
16.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(允许). *No food or drinks are to be allowed in the science lab. |
| Before the Experiment | *Read all instructions carefully before every experiment(实验). *Prepare all apparatus(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 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. |
A.before
B.since
C.during
D.after
32.It is necessary for you toA before every experiment.
A.read all instructions carefully
B.take enough food and drinks
C.smell chemicals immediately
D.talk with your classmates.
33.If you are not sure of how to use any apparatus,C.
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
34.The underlined word"spill"meansD.
A.照射
B.伤害
C.摔下
D.溅出
35.When you are in the science lab,you mustn'tC.
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.
分析 做实验是有趣的,但是你必须要小心,当老师在你的第一堂实验课前阅读并解释规则时,要仔细听.本文详细介绍了实验室的一些规则.
解答 31.A 细节理解题.根据Listen carefully when your teacher reads and explains the rules before your first lab lesson.可知老师在你的第一堂实验课前阅读并解释规则时,要仔细听,故选A.
32.A 细节理解题.根据Read all instructions carefully before every experiment可知每次实验前要仔细阅读所有说明.故选A.
33.C 细节理解题.根据If you are unsure of how to use any apparatus or how to operate,ask your teacher for help.可知如果你不确定如何使用任何器具或如何操作,请向你的老师寻求帮助.故选C.
34.D 词义猜测题.根据假设的情景If you spill any chemicals onto your body or clothing,及wash with plenty of water and report to your teacher.可知如果把药品溅到了身体或者衣服上,要用大量的水冲洗,并且报告老师.故选D.
35.C 理解判断题.根据Never smell or taste chemicals unless your teacher gives permission.可知没有老师的允许不可以闻或者尝药品,故选C.
点评 做题时要在理解好文意的基础上,与题目有机的结合,从文章中找到相关细节性的句子与选项细细比对,进行选择或推理判断,找出符合文章内容的正确答案.做题注意灵活,有时可采用排除法或直选法确定出最终答案.
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