题目

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。     Have you ever done a science lab before? Maybe you have but you didn't know there is a special name for  you were doing. A laboratory is a place where scientists do (they) jobs, and where they perform experiments. A lab is just another way of (say) you are doing an experiment. As you have already been a member of senior school students, you sometimes get to do experiments.  (general) speaking, any time you are in science class where you get to mix chemicals, or connect (连接) wires to batteries, or watch a butterfly chrysalis (蛹)  (see) if it is going to come out, you are doing an experiment.     Watching a butterfly or counting the number of seeds in a flower are very safe labs to do, but not all labs will be that safe. Sometimes, they are much (dangerous) than you expect. It means that you get to do experiments with more things  are not safe, like chemicals or electricity. When you are going to do dangerous things, you need to practise lab safety.  is really necessary to learn how to stay safe when you are doing science lab experiments.     Your  (person) laboratory safety depends mostly you. 答案：【1】what【2】their【3】saying【4】Generally【5】to see【6】more dangerous【7】that/which【8】It【9】personal【10】on

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