问题 解答题

下表给出了A、B、C、D、E5种食物(各100克)中除水和无机盐以外的主要成分:

食物糖类(克)脂肪(克)蛋白质(克)维生素A(毫克)维生素C(毫克)维生素D(毫克)
A5515751035
B5015338150.7
C1010850.815
D20430.91111
根据上表可知,食物______不宜作夜盲症患者常用食物;食物______不宜作骨质疏松症患者常用食物;食物______不宜作坏血症患者常用食物;能提供较多能量的食物是______.

答案

分析表格中的数据,可以发现:食物A中含有较多糖类;食物B含有较多的维生素A和较少的维生素D;食物C含有较少的维生素C,食物D含有较少的维生素A.缺少维生素A会患夜盲症、干眼症、皮肤干燥脱屑.缺少维生素C会患坏血病,抵抗力下降;缺少维生素B1,会患神经炎、脚气病、消化不良;缺少维生素D,儿童会患佝偻病,成年人的骨质疏松症.

食物D中含有较少的维生素A,不宜作夜盲症患者常用食物;食物B含有较少的维生素D,不宜作骨质疏松症患者常用食物;食物C中有较少的维生素C,不宜作坏血症患者常用食物;食物A含有较多的糖类,糖类是人体最重要的供能物质,人体的一切活动,包括学习、走路、消化和呼吸等所消耗的能量(约70%)主要来自糖类.

故答案为:D;B;C;A

完形填空
You may think that English dictionaries have been used for many, many centuries. In fact, an English dictionary you      today wasn’t made until the Qin Dynasty. They spent most of the important       work on dictionaries. They spent nearly all their lives trying to     words for their dictionaries. For them, it was a wonderful journey. The largest dictionary in the world is Oxford English Dictionary(牛津字典). The        for this dictionary came from an important meeting in Britain in 1857. twenty-two years later, Oxford University asked James Murray to be the editor(编者)of its new dictionary. Murray had never been to      . At the age of fourteen, he left his villageschool in Scotland and taught himself while working in bank.      he became a great teacher. After Oxford gave him the job. Murray had a small house       in his garden to do the work. Every morning, Murray got out of bed at five o’clock and      in the small house several hours before breakfast. Often he would work into the night. Murray hoped to finish the new dictionary in ten years but after five year, he was       adding(增加)words for the letter “A”! He worked on the dictionary       he was very old. Forty-four years later, in 1928, other editors finished the dictionary.
小题1:
A.useB.writeC.copyD.miss
小题2:
A.easyB.boringC.earlyD.dangerous
小题3:
A.spellB.inventC.collectD.make
小题4:
A.wayB.ideaC.useD.prize
小题5:
A.schoolB.cinemaC.villageD.collage
小题6:
A.LaterB.Longer before C.So farD.Ever since
小题7:
A.soldB.builtC.brokenD.drawn
小题8:
A.readB.wroteC.workedD.thought
小题9:
A.alreadyB.stillC.usuallyD.always
小题10:
A.ifB.becauseC.untilD.since
单项选择题