问题 填空题

(1)合理搭配饮食是我们健康生活的理念。比如早餐搭配:牛奶、面包、黄油、水果等,其中含有的营养素有油脂、水、蛋白质、维生素、无机盐和       

(2)目前市场上有“补血口服液”、“高钙奶粉”等,这些铁、钙应理解为      (填原子、分子、元素、单质);人体缺铁可能会引起       

(3)我们常用洗涤剂清洗餐具上的油污,这是因为洗涤剂具有        的功能。

(4)厨房中常备的物品有:食醋、食盐、纯碱、蔗糖、花生油、大米、矿泉水等。利用以上物质能够完成的实验是__________。

A.区分食盐和纯碱

B.检验自来水的酸碱性

C.除去热水瓶中的水垢

D.试验以上物质是否能溶于水

答案

(1)糖类  (2)元素    缺铁性贫血(贫血)   (3)乳化   (4)A C D

分析:(1)根据营养素的食物来源及营养素的种类进行解答.

(2)根据宏观物质的组成,用宏观概念元素来表示;分子的构成,用微观粒子来表示.元素是具有相同核电荷数(即核内质子数)的一类原子的总称,是宏观概念,只讲种类,不讲个数.进行分析解答本题.

(3)根据洗涤剂的去污原理分析.

(4)可结合物质的性质及所给原料进行逐一分析解答.

解答:解:(1)牛奶中含蛋白质和无机盐,面包中富含糖类和无机盐,黄油富含油脂,水果富含维生素,当然好多物质含有水分,所以填糖类.

(2)宏观物质的组成,用宏观概念元素来表示;“补血口服液”、“高钙奶粉”等,这些铁、钙是宏观概念,指的是元素.

铁是合成血红蛋白的主要元素,缺乏会患贫血.

(3)洗涤剂可以将油污和水溶到一起,从而使油污脱离物品,这种作用称作乳化作用.

(4)A.区分食盐和纯碱可以用是醋,有气泡产生的为纯碱.

B.检验自来水的酸碱性一般用指示剂,所以不能鉴别.

C.除去热水瓶中的水垢可以用食醋除去.

D.试验以上物质是否能溶于水可将物质溶于矿泉水中看是否溶解,可以验证.

故选ACD

故答案为:(1)糖类

(2)元素;贫血

(3)乳化

(4)A C D

阅读理解

 Roman Pantheon (万神殿) is one of the greatest achievements of the ancient Romans. The ancient Romans were good architects and they built many wonderful buildings. Another good example of a Roman architectural style is the Roman Coliseum, which is a large building used for public sports events or entertainment. The Roman architectural style has been borrowed by many of the western countries.

The architecture of Pantheon is unique to Rome. In Latin and Greek, pantheon means "Temple of all the Gods". Marcus Agrippa built the original Pantheon in 27 BC. But the Pantheon built by Agrippa was completely destroyed in 80 AD when a fire broke out. The Roman Pantheon that is visited by many tourists today was rebuilt in 125 AD by the Roman emperor Hadrian. Hadrian's architects followed the exact design of Marcus Agrippa. Historians believe that the Pantheon was a place of worship(崇拜) because it housed all the gods and goddesses of the ancient Romans.

The Pantheon of Rome is an amazing example of ancient Roman architecture. This building has been in use for over 2000 years. The Roman Pantheon is famous for its design, size. The most unbelievable feature of this building is its huge concrete dome(圆顶). The Pantheon’s dome was thought to be the largest, until recent times.

Phocas, the Byzantine Emperor presented the Roman Pantheon to Pope Boniface IV to save it from the destruction. In 609 AD, it was turned into a church. During Papal rule, it was used as a burial ground (坟场) for kings and other famous people. There are tombs of Raphael (a painter), King Victor Emmanuel II, King Umberto I and many more in the Pantheon.

Some of the buildings that were constructed on the model of the Roman Pantheon are The Rotunda - University of Virginia, Low Memorial Library - Columbia University, Grand Auditorium - Tsinghua University, Jefferson Memorial - Washington D.C. and Duomo - Florence.

小题1:From the first paragraph, we can learn that _______.

A.the Coliseum was often used for big parties

B.there were different architectural styles in Rome

C.the Roman architectural style was borrowed from many western countries

D.the Pantheon and the Coliseum are examples of Roman architecture小题2:According to historians, the Pantheon was built to _______.

A.exhibit the terrific design of Marcus Agrippa

B.suggest the power of Emperor Hadrian

C.provide a place for Roman gods and goddess

D.show ancient Rome’s unique architectural style小题3:The Pantheon which tourists visit at present was built in _______.

A.27BC

B.80AD

C.about 125AD

D.609 AD小题4:The Pantheon was thought highly of especially because of its _______.

A.strange shape

B.huge dome

C.perfect quality

D.beautiful小题5:The text mainly tells us _______.

A.some facts about the Roman Pantheon

B.the influence of ancient Roman architecture

C.Roman’s lifestyle in ancient times

D.ancient Romans and their architecture

单项选择题