问题 单项选择题

花类药材一般应在()采收。

A.秋、冬季

B.果实成熟时

C.开花前或果实未成熟前

D.花含苞待放时

E.全年均可

答案

参考答案:D

解析:本组题考查要点是"植物药的采收原则"。①果实种子类:多在自然成熟或将近成熟时采收。少数采收幼果,如枳实、青皮等。种子类药材需在果实成熟时采收。②根及根茎类:一般在秋、冬季节植物地上部分将枯萎时及春初发芽前或刚露苗时采收,此时根或根茎中贮藏的营养物质最为丰富,通常含有效成分和产量均比较高。③花类:多在含苞待放时采收,如金银花、辛夷、丁香、槐米等;在花初开时采收的如红花、洋金花等;在花盛开时采收的如菊花、番红花等。对花期较长、花朵陆续开放的植物,应分批采摘,以保证质量。一般不宜在花完全盛开后采收,开放过久几近衰败的花朵,不仅会影响药材的颜色、气味,而且有效成分的含量也会显著减少。④叶类:多在植物光合作用旺盛期,叶片繁茂,颜色青绿,开花前或果实未成熟前采收,此时往往有效成分含量和产量均高。

改错题

第二节 短文改错(共10小题,每题1.5分,满分15分)

此题要求改正所给短文中的错误。对标题号的每一行作出判断:如无错误,在该行右边横线上画一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:

此行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线(\)划掉。

此行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。

此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。注意:原行没有错的不要改。

Dear Sally,

Now I' d like to tell you something about my part-time job this   76.________

summer vacation, in which I worked like a guide in a travel agency.   77.________

The work was interesting but tired. I think it was helpful to work this 78.________

holiday. That was the first time that I have earned money on my own. 79.________

I've come to understand how hard my parents work to support for     80.________

the family. I used to keep on ask them for money, but now I' 11 never   81.________

waste money and learn to share worries with my parent. I've learnt how  82.________

to get along well with others. What' s worse, I' ve gained some working  83.________

and social experience and I have learnt something can't be learnt from  84.________

textbooks. All this will be good for my future. In the word, I had a    85.________

wonderful and valuable summer vacation.

选择题