问题 选择题

下列有关生活中的化学问题,说法正确的是

A.因脂肪氧化产生的能量比糖类高,可大量饮食脂肪

B.若工厂贮氯罐意外泄漏时,应紧急组织邻近群众沿逆风方向撤离

C.人体中不含水解纤维素的酶,故人类饮食中不需摄入纤维素含量高的食品

D.给酸性土壤施肥时,可将铵盐与石灰混合后再使用

答案

答案:B

虽然脂肪氧化产生的能量比糖类高,但不可大量食用,A错误;虽然人体中不含水解纤维素的酶,但纤维素有助于肠胃的蠕动对人体有益,需要摄入一定量的纤维素,C错误;给酸性土壤施肥时,将铵盐与石灰混合后再使用会降低肥效。

阅读理解

阅读理解。

     Full of beauty, happiness and a healthy love of life, the Bulgarian (保加利亚人的) festivals and customs

date back to old time when man tried to live in peace with nature. The merriest and richest festivals are

Christmas and the New Year, when the so-called. "sourvakari" makes the round of house with wishes for

health and wealth. Other main festivals include "ladouvane"-a holiday for young girls on New Year's Day or

Midsummer Day (24th June), Shrovetide and Mummers' Games which mark the start of spring, and

"lazrouvane"-a traditional festival for love and family, health and richness. And among them, the widely popular

and typical Bulgarian customs and festivals are "martenitsas" and rose-picking.

     Every year on March lst, the Bulgarians give each other "mar-tenitsas"-a small doll made of white and red

strings, a symbol of the beginning of spring, health and happiness.

     In late May and early June every year, the rose-picking season starts in the Valley of Roses which is

between the Balkan Range and the Sredna Gora Mountains. Rose-picking starts at dawn, before sunrise and

before the pleasant smell of the rose has disappeared. The Bulgarian rose produces 70 percent of the world's

rose oil which is used by the very well-known perfume (香水) company as a basic element of its products.

This is the time of the Festival of Roses, celebrated with carnivals, happy activities, folk songs and dances in

Karlovo and Kazanluk on the first Sunday in June.

1. The passage is mainly about _____. [ ]

A. Christmas and the New Year in Bulgaria

B. the origin of Bulgarian festivals and customs

C. rose-picking and perfume industry in Bulgaria

D. typical customs arid festivals of Bulgaria .

2. Which of the following can be the best title for the passage? [ ]

A. "Martenitsas"-the Beginning of Spring

B. Beauty, Happiness and Love

C. Bulgarian Festivals and Customs

D. Rose-picking and "Martenitsas"

3. The author of this passage intends to _____. [ ]

A. let us know some knowledge of Bulgarian culture

B. tell us the differences between customs and festivals

C. explain the connection between customs and industry

D. find the origin of the Bulgarian customs

4. The second and the third paragraphs of the passage _____. [ ]

A. tell us how popular rose-picking is

B. link two festivals with health and richness

C. show us two merriest and richest festivals

D. talk about two typical Bulgarian festivals

5. This passage is most likely to appear in a _____. [ ]

A. magazine of travel

B. book on world culture

C. history book

D. daily newspaper

单项选择题