试题与答案

三硝基苯甲酸浓于二硫化碳-二氯甲烷混合溶剂。

题型:判断题

题目:

三硝基苯甲酸浓于二硫化碳-二氯甲烷混合溶剂。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:1.观察法的优点: (1)方法简单、灵活。 (2)获得较为客观的第一手信息。 (3)适于对环境情况的了解。 (4)适于对人物、事件实际状况的了解。2.观察法的缺点: (1)不...

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题型:阅读理解

阅读短文,根据短文内容回答问题。(共10分,每小题2分)

  We need to be responsible for our environment. Being a frugal consumer(节俭的消费者) is one way to help. But, what exactly does that mean?

  Use It Up

  You can use things up instead of wasting them. Squeeze that last bit of toothpaste out of the tube. Use the last little piece of soap. Don't throw away any bits of the biscuit at the bottom of the box.

  Wear It Out

  You do not always need to have new things. Suppose your sneakers have broken laces, but they still fit you. Repair them and wear them longer. You don't have the latest iPhone until the old one doesn't work anymore. Then you can get a new one. Think twice before replacing something that still works.

  Make It Do

  When something you want is not on hand, look for something else that you already have to take its place. Suppose you are packing your lunch for tomorrow and want a butter sandwich. You are out of butter. Have a cheese sandwich instead so that you can use all of the cheese. Learn to fix broken toys instead of just throwing them away. With a little thought, you can make something do, instead of buying something new.

  Do Without

  Think about all those things that you would like to have. Do you really need them? How long will you really play with that new toy you saw on TV? Making the things that we want uses up your world's resources(资源). And, getting rid of the things we don't want any more takes up even more resources and space.

 小题1:Do we need to be responsible for our environment?

 小题2: How do we deal with the last little piece of soap?

 小题3:When do we need to get a new iPhone?

 小题4: What should we do when something we want is not on hand?

小题5:What does the writer want to tell us?

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