问题 选择题

下列说法正确的是

A.SiO2溶于水且显酸性

B.SiO2是制造太阳能电池的常用材料

C.SiO2是酸性氧化物,它不与任何酸反应

D.向硅酸钠溶液中通入CO2气体,有白色凝胶状固体析出

答案

答案:D

题目分析:二氧化硅是酸性氧化物,但不能溶于水,A不正确;单质硅是制造太阳能电池的常用材料,B不正确;C不正确,乙烷二氧化硅能和HF反应;碳酸的酸性强于硅酸的,因此向硅酸钠溶液中通入CO2气体,有白色凝胶状硅酸固体析出,D正确,答案选D。

点评:该题是识记性知识的考查,难度不大。平时注意知识的积累和总结,并能灵活运用即可,有利于调动学生的学习兴趣,增强学生的学习自信心。

阅读理解

People can enjoy visiting some major imperial temples (帝王庙宇) where emperors worshipped nature on various sacred days•

Temple of Moon (Yuetan)  

Built in 1530,the roughly 8 hectare Temple of Moon,or Yuetan Park,to west of the imperial city was the site of imperial sacrifices to the moon.

In the past decades, bushes and fruit trees have been planted here.In 1969,a 180 meter--all television broadcasting tower was erected in the park,taking up about one eighth of its total space•

Opening hours:6 am~9 pm

Location:6 Yuetan Beijie,Xicheng District.Buses to get there:15,19,823.

Temple of Earth (Ditan)

The Temple of Earth,or Ditan Park,near the North Second Ring Road,is where emperors prayed to the earth for favorable weather and national prosperity.Built during the Ming Dynasty in 1 530,it is the only existing place to worship the earth.

The surrounding areas have become an open space for people to engage in leisurely activities.Since the late 1980s,traditional temple fair have been held here regularly during the Chinese lunar new year.

Opening hours:6 am~9 pm

Location:A2 Di’anmenwai,Chaoyang District.Buses to get there: 104,108,116,or take the subway to get off at Yonghegong to go north.

Temple of Sun (Ritan)

The Temple of Sun,or Ritan Park,in eastern Beijing,is located near the Jianguomen area and adjacent(邻近的) embassy district.It is a short walk from the Yong'anli subway station on the Line 1.The altar (祭坛) was built in l530 as a place for emperors to make ritual sacrifices to the sun.

It features expansive gardens and a small lake.A mural (壁画)wall, the park’s main scenic attraction now,was a piece of artwork created about 20 years ago to draw more sightseers.The park is also known for its blossoming lotuses.

Opening hours:6 am~9 pm

Location:6 Ritan Beilu,Chaoyang District.Buses to get there:1,4,28,43,57.120.

小题1:What kind of people is the text mainly written for?

A.Parents.

B.Students.

C.Tourists.

D.Teachers-小题2:You can take a No.______ bus if you want to visit The Temple

of  Sun                    

A.19

B.104

C.108

D.120小题3:If you want to worship the earth,you must go to _____.

A.Yuetan Park

B.Ditan Park

C.Ritan Park

D.Beilu Park小题4:The purpose of building a mural wall in Ritan Park was to_____.

A.defend the park

B.prevent people from coming into the park

C.attract more sightseers

D.make ritual sacrifices to the sun

单项选择题