问题 选择题

作为能源物质贮存在人体内的是(    )。

A.蛋白质

B.脂肪

C.维生素

D.糖类

答案

答案:B

题目分析:食物所含的六类营养物质中,能为人体提供能量的是糖类、脂肪和蛋白质.脂肪是人体内备用的能源物质,一般储存在皮下;糖类是人体进行生理活动的主要供能物质.蛋白质主要是构成人体细胞的基本物质也能提供能量;人体的生长发育、组织的更新等都离不开蛋白质.维生素既不是构成组织的主要原料,也不是供应能量的物质,但对人体的各项生命活动有重要的作用.

阅读理解

第三部分:阅读理解(共20小题, 满分40分)

The 4th of July is the most important holiday in the United States, for it reminds us of the famous day in 1776. When the Americans declared their independence, congress made the declaration in Philadelphia, and that night in the city there were joyful celebrations which soon became nationwide. Even since, the 4th of July has been marked in the American calendar as Independence Day, and there are parades and festivities of all kinds.

The Declaration of Independence drawn up by Thomas Jefferson is one of the most important documents ever published, and it dropped like a bombshell(意外事件) on the western world. Here is a sentence which shook the ruling classes of Europe, “We hold these truths to be self-evident, that all men are created equal, that they are endowed ( 赋予)by their Creator with certain unalienable(不可剥夺的) rights, that among these are life, liberty and the pursuit of happiness.”

1. When did the Americans declare their independence?

A. The fourth of July, 1776..        B. The fourth of June, 1794.

C. The first of July, 1767.          D. The first of June, 1756

2. By whom was The Declaration of Independence drawn up?

A. George Washington.          B. Benjamin Franklin.

C. Thomas Jefferson            D. Abraham Lincoln.

3. Which of the following most generally summarizes the Declaration of Independence?

A. Equality.                 B. Liberty   

C. The pursuit of happiness.    D. All of the above.

判断题