问题 问答题 简答题

施胶的目的是什么?有几种施胶方法?针对各种施胶方法个举出两种典型的施胶剂

答案

参考答案:

(1)施胶目的;降低纸和纸板的吸水量和吸墨量,保持纸的尺寸的稳定性,防止收缩,以及增进纸的光滑性、印刷稳定性,提高纸的质量。

(2)有两种施胶方法。浆内施胶和表面施胶浆内施胶:把施胶剂直接加到打浆机,对纸浆施胶,再制成具有憎液性质的纸和纸板表面施胶:将施胶剂加到纸的表面,并在纸的表面形成一层薄膜,封闭纸的表面空隙,以使纸张书写流利,并增加纸的耐水性能,抗油性能,干湿强度及印刷性能。

(3)浆内施胶剂:松香胶、反应性胶。

表面施胶剂:动物胶,聚乙烯醇。

完形填空

阅读下面的短文并回答问题,然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)。

[1]I'm Jack.On July 14th,my family moved to Britain and excitement put me in a happy mood for weeks.

[2]After half a year self English training,I was sent into a local high schoo1.At the time I was extremely nervous.Students and teachers enthusiastically welcomed me and spoke to me very slowly,but I still hardly understood them.They liked me,because I was pretty outstanding in the math’s class.One day,a Russian guy challenged me and I put him on the ground by a bare hand.Since then,no one ever made a second challenge,and I got to know later that he was the strongest guy in the schoo1.I was actually quite proud as in China I never had chance to be seen like this.

[3]During the first two years of high school,I frankly didn’t achieve very much academically.The language put me down all the time.Needless to say,the British education system is very relaxing.I didn’t want to do as much work as before.It is terrific.

[4]Since the year 2000 I've taken great interest in designing and maintaining websites.With a large amount of effort and a small amount of time.I managed to construct a personal web.I gradually acquired the sense of professionalism and redesigned my sites again and again,and the first award or the official recognition was that my school put up my URL on their website as an example of the IT students’brilliance.

[5]I progressed.The flash version of the site won a few official website design awards.And I even started a business of web design.Nowadays,I devote much time in pursuit of Search Engine Marketing,which is vital to firms which heavily depend on internet sales.

小题1:Fill in the blank with one proper word.

When Jack moved to Britain,he was ______________________________________.

小题2:Which country might Jack come from?

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小题3:Which paragraph does the following sentence belong to?

Actually,I hadn't even attended an IT lesson.

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小题4:What did Jack succeed in establishing?(no more than 5 words)

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小题5:What awards did Jack win?(no more than 5 words)

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