问题 问答题

防治干粘石面层滑坠的措施是什么

答案

参考答案:防治干粘石面层滑坠的措施如下:
1)操作时首先注意底层砂浆必须抹平,高低差不得大于5mm。发现不平或超出5mm时应分层补平再做面层。
2)其次要掌握好浇水的湿度,浇水必须根据季节、气候和基层材料的不同,掌握浇水量,如砖墙面吸水多,混凝土墙面吸水少,而加气混凝土墙多封闭孔不易浇透等。

阅读理解

In order to know a foreign language thoroughly, four things are necessary. Firstly, we must be able to understand the language when we hear it spoken. Secondly, we must be able to speak it ourselves, correctly, with confidence and without hesitation. Thirdly, we must be able to read the language and fourthly, we must be able to write it. We must be able to compose(组成)sentences that are grammatically correct. We must know how to arrange sentences in paragraphs, so as to write a good letter or composition.

There is no easy way to succeed in language learning. A good memory is of great help, but it is not enough simply to memorize rules from a grammar book. It is not much use learning by heart long lists of words and their meaning. We learn words not by ourselves, but in sentences. We must learn by using the language. “Learn through use” is a good piece of advice for those who are studying a new language. Practice is very important. We must practice speaking and writing the language whenever we can.

小题1:The word “confidence” here probably means _____.

A.use

B.eyes

C.need

D.feeling sure of ourselves小题2:The writer advises us to _______.

A.speak more and write more

B.read more

C.speak more

D.use a dictionary小题3:The first step in learning a language is ______.

A.reading

B.speaking

C.writing

D.listening小题4:Words should be learned _____.

A.from a dictionary

B.from a textbook

C.in sentences

D.from a good grammar book小题5:“Learn through use “is to say that ______.

A.we must practise speaking and writing

B.we must learn by using the language

C.we must learn everything by language

D.we must remember grammar rules as many as possible

填空题