题目内容

【题目】阅读下面的文字,回答后面的问题。

路是心的选泽,心中晴朗,路也阳光,心中阴雨,路也缠绵,心中忧郁,路亦蒙蒙。它承载着每个人的酸、甜、苦、辣,喜、怒、哀、乐。人如一叶小舟,用心掌陀,希望引航,只愿轻缓走过人生的四季,看江山如画,听岁月如歌,放下生命的沉重,从容淡然地走过,因为我们是行者,我们在路上!

(1)根据要求检索上面文字中加着重号的字。

①用音序检字法查“承”:先查音序______,再查音节______

②用部首检字法查“航”:先查部首______,再查______画。

(2)上面这段文字有两个错别字,找出来并改正。

______应该为______  ②______应该为______

【答案】(1)①C cheng ②舟 (2)①“泽” “择” “陀” “舵”

【解析】

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【题目】 Scientists in Britain and the United States have made a new kind of enzyme(酵素)that eats plastics. With its help, plastics can be turned into smaller parts and go away quickly. Scientists believe that, in the future, it could solve the problem of plastic pollution.

The enzyme is able to break down PET, a form of plastic. PET was first made in the 1940s and is now widely used to make plastic bottles. It can remain in the environment for many years and pollute large areas of land and water. So it has always been a headache to deal with the waste from PET and other plastics.

The researchers made the discovery while examining the structure of a natural enzyme in Japan. They found that the natural enzyme was helping to break down PET plastics. So, they decided to make small changes to the enzyme by adding some amino acids(氨基酸). It made the natural enzyme's plasticeating abilities work faster and better.

John McGeehan, one of the lead researchers, said, “We've made an improved enzyme. It's better than the natural one. And we are trying to make more improvements to it.” He went on, “The enzyme is not harmful to humans or animals, and it is friendly to the environment. So we are considering putting it into wider use.”

The team is now trying to make the enzyme break down PET in large quantities(大量地). “We'll_see_that_the_plastic_pollution_may_be_stopped_with_this_technology__However, there is still a long way to go” John McGeehan added.

1完成句子:

With the help of this new enzyme, plastics can be________________ smaller parts and go away quickly.

2完成句子:

PET can pollute large areas of ________________.

3简略回答问题: What did the researchers find according to the passage?

____________________________________________

4找出并写下文章的主题句:

____________________________________________

5将文中画线句子译成汉语:

____________________________________________

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