问题 问答题

某一种豆腐部分成分如下表.

成分蛋白质脂肪糖类
质量分数(%)90.04.71.32.8
成分维生素B1维生素B2
质量分数(%)0.241.40.000060.00003
(1)上表中显示豆腐中,含有人体所需的营养素有______类.

(2)人体正常发育离不开钙,吃豆腐是人体补钙的一种方法.下列关于钙元素的叙述正确的是(填序号)______.

A.幼儿及青少年缺钙会得佝偻病和发育不良          B.人体缺钙会引起甲状腺肿大 C.老年人缺钙会发生骨质疏松,容易骨折

(3)豆腐中含有蛋白质,蛋白质属于(填序号)______.

A.无机物      B.有机物      C.有机合成高分子        D.有机高分子化合物

(4)若成年人每天食用80g豆腐,则摄入铁的质量为______g.

答案

(1)据表可以看出豆腐中含有的营养素有水、蛋白质、油脂、糖类、无机盐和维生素,故填:水、蛋白质、油脂、糖类、无机盐和维生素;

(2)A.幼儿及青少年缺钙会得佝偻病和发育不良,正确;

B.人体缺钙会引起甲状腺肿大,错误;

C.老年人缺钙会发生骨质疏松,容易骨折,正确;

故填:AC;

(3)蛋白质属于有机物,相对分子质量很大,属于有机高分子化合物,故填:BD;

(4)摄入铁的质量为80g×1.4%=1.12g,故填:1.12g.

阅读理解

Tales From Animal Hospital

David Grant

David Grant has become a familiar face to millions of fans of Animal Hospital . Here Dr Grant tells us the very best of his personal stories about the animals he has treated ,including familiar patients such as the dogs Snowy and Duchess , the delightful cat Marigold Serendipity Diamond . He also takes the reader behind the scenes at Harmsworth Memorial Animal Hospital as he describes his day , from ordinary medical check-ups to surgery (外科手术). Tales From Animal Hospital will delight all fans of the program and anyone who has a lively interest in their pet ,whether it be cat , dog or snake I ! $ 14.99 Hardback 272 pp Simon Schuster

ISBN 0751304417

Isaac Newton : The Last Sorcerer

Michael White

Form the author of Stephen Hawking : A Life in Science , comes this colorful description of the life of the world’s first modern scientist . Interesting yet based on fact , Michael White’s learned yet readable new book offers a true picture of Newton completely different from what people commonly know about him . Newton is shown as a gifted scientist with very human weaknesses who stood at the point in history where magic (魔术)ended and science began.

£8.99 Hardback 320 pp Fourth Estate

ISBN 1857024168

Fermat’s Last Theorem

Simon Singh

In 1963 a schoolboy called Andrew Wiles reading in his school library came across the world’s greatest mathematical problem : Fermat’s Last Theorem (定理). First put forward by the French mathematician Pierre de Fermat in the seventeenth century, the theorem had baffled and beaten the finest mathematical minds , including a French woman scientist who made a major advance in working out the problem , and who had to dress like a man in order to be able to study at the Ecole  Polytechnique . Through unbelievable determination Andrew Wiles finally worked out the problem in 1995 . An unusual story of human effort over three centuries , Fermat’s Last Theorem will delight specialists and general readers alike .

£12.99 Hardback 384 pp Fourth Estate

ISBN 1857025210

小题1:What is Animal Hospital ?

A.A news story .

B.A popular book .

C.A research report .

D.A TV program .小题2:In Michael White’s book , Newton is described as        .

A.a person who did not look the same as in many pictures

B.a person who lived a colorful and meaningful life

C.a great but not perfect man

D.an old-time magician小题3:Which of the following best explains the meaning of the word “baffle” as it is used in the text ?

A.To encourage people to raise questions .

B.To cause difficulty in understanding .

C.to provide a person with an explanation .

D.To limit people’s imagination .小题4:What is the purpose of writing these three texts ?

A.To make the books easier to read

B.To show the importance of science

C.To introduce new authors

D.To sell the books .

问答题 简答题