初中化学选择题

用固体氯化钠配制100 $g$ 10%的氯化钠溶液，不需要使用的仪器是（）

A．

玻璃棒

B．

石棉网

C．

烧杯

D．

量筒

今年世界各国频发地震。为防止震后疾病传染须对饮用水源进行处理，采取的措施有：
①煮沸 ②消毒 ③过滤 ④自然沉降，合理处理的顺序是（）

A．

③①②④

B．

②④③①

C．

④③①②

D．

④③②①

下列化肥不能与碱性物质混放或混用的是

A．

碳铵

B．

硝铵

C．

硫铵

D．

硫酸钾

生活处处有化学。下列变化过程只有物理变化的是（）

A．

葡萄酿酒

B．

食品发霉

C．

水分蒸发

D．

煤气中毒

因为它含有丰富的

A．

蛋白质

B．

维生素

C．

油脂

D．

糖

Dreams are expressions of thoughts, feelings and events that pass through our mind while we are sleeping. Everybody dreams. But only some people remember their dreams. Our dreams often include all the senses-smells, sounds, sights, tastes and things we touch. We dream in colour. Sometimes we dream the same dream over and over again. These repeated dreams are often unpleasant. They may even be nightmares-bad dreams that frighten us.
Early in the twentieth century, two famous scientists developed their personal ideas about dreams. Austrian psychiatrist Sigmund Freud published a book called "The Interpretation(诠释) of Dreams" in 1900. Freud believed people often dream about things they want but can't have. These dreams often have something to do with sex and aggression(侵犯). Swiss psychiatrist Carl Jung worked closely with Freud for several years, but he believed dreams could help people grow and understand themselves. He believed dreams provide solutions(解答) to problems we face when we are awake. He didn't believe dreams hide our feelings about sex or aggression. Today we know more about the science of dreaming because researchers can take pictures of people's brains while they are sleeping.
Other researchers are studying how dreaming helps our bodies work with problems and very sad emotions(感情). Robert Stickgold is a professor of psychiatry at Harvard University in Massachusetts. Doctor Stickgold says that when we dream, the brain is trying to make sense of the world. He does not agree with Sigmund Freud that dreaming is the way we express our hidden feelings and desires(愿望).
Scientists believe it is important to keep researching dreams. Doctor Stickgold says it has been more than one hundred years since Sigmund Freud published his important book about dreaming. Yet there is still no agreement on exactly how the brain works when we are dreaming or why we dream.
请根据短文内容，选择最佳答案, 将其标号在答题卡上涂黑。（每小题2分，共10分）
 Dreams _________.

A．	are remembered by everyone
B．	express all that we think in our mind
C．	include few senses and things we touch
D．	are sometimes nightmares that repeat and frighten us

A book on dreaming was published by _________.

A．

Sigmund Freud

B．

Robert Stickgold

C．

Carl Jung

D．

the writer

In the passage, all the psychiatrists _________.

A．	believe dreams can help people understand all the problems that they face
B．	think dreams always hide someone's feelings about sex or aggression
C．	study dream and dreaming and have their own ideas
D．	have the same idea that people often dream about the things they want

From the passage, we know that _________.

A．	Jung thought that dreams provide solutions to problems we face when we are sleeping
B．	Freud developed the idea that dreams are expressions of people's hidden feelings
C．	scientists have known quite well why we dream because they can take pictures of our brains
D．	other researchers have discovered how dreaming helps our bodies work with problems and very sad emotions

Which would be the best title(标题) for the passage?

A．	The Explanations of Dreams	B．	The Ways of Dreams
C．	The Solutions to Dreams	D．	The Mystery(奥秘) of Dreams and Dreaming

1．

We live on the earth. We use the sea around us. What do we take from the ocean? And what do we give to it? We take fishes from the ocean-millions of kilograms of fish, every year, to feed millions of people.     We take minerals(矿物) from the ocean. We can get salt by evaporating(蒸发) seawater.      Many other minerals, such as gold, can be also got from the sea, but not by simple evaporation.     Seaweed(海草) becomes food of many kinds- even candy, and ice cream-as well as medicine. Believe it or not, fresh water is another gift from the sea. We can't drink ocean water.       But ocean water becomes fresh water when the salts are removed. In the future, we will find ourselves depending more and more on fresh water from the sea. The sea gives us food, fertilizer, minerals, water and other gifts. What do we give the sea? We pollute the ocean all the time. 　 　Throwing waste into the ocean is killing off sea life. Yet as the world population grows, we may need the sea and its gifts more than ever. We are finally learning that if we destroy our sea, we might also destroy ourselves. Hopefully, it is not too late. 根据以上内容，从下列五个选项中选择适当的句子还原到短文中，使短文完整与正确。将其标号在答题卡上涂黑。（每小题2分，共10分） A．Other gifts from the sea , such as seaweed, can be also got from the sea. B．Huge as it is, the ocean can't hold all that we pour into it. C．Along with salt, other minerals are left after evaporation. D．We even use their bones(骨头) for fertilizer(化肥). E. Some of its contents(所含物) may cause illness.

	President Hu Jintao flew to the earthquake-hit region in Yushu, Qinghai   on April 18, 2010. At a field hospital on the grounds of a sports stadium, Hu   sat on the bed of Drolma, a middle school student, and held her in his arm as   she wept(哭泣). "Rest assured(放心的), you will have a full recovery(康复). Be   strong. You will have a bright future," he told her.
The 2010 World Expo, Shanghai China	The 2010   World Expo Shanghai China Duration(举办时间): May 1 to October 31, 2010 Expected visitors: 70 million Theme(主题) : "Better City, Better Life." The theme represents the common wish of the people all   over the world for a better living in future urban(城市的) environments.
	The 19^th FIFA World Cup(世界杯足球赛) Duration: June 11 to July 12, 2010 Host(主办) nation: South Africa Number of teams: Thirty-two Number of matches: Sixty-four It is the first time that the tournament(锦标赛) has been hosted by a nation in   the Confederation(联盟) of African Football.

President Hu Jintao flew to Yushu, Qinghai _________, 2010.

A．

on May 1

B．

on June 11

C．

on April 18

D．

on July 12

President Hu Jintao comforted(安慰) _________ at a field hospital.

A．	a middle school student	B．	a soldier
C．	a farmer of Yushu	D．	a doctor

The 2010 World Expo in Shanghai will end on _________.

A．

September 30

B．

October 31

C．

November 30

D．

December 31

The theme of Expo 2010 is "_________"

A．	Better City, Bright future.	B．	Better City, Good Environment.
C．	Better City, Better Life.	D．	Better City, Best Investment(投资).

There will be _________ teams taking part in the 19^th FIFA World Cup.

A．

10

B．

12

C．

13

D．

32

Mr Brown saw a sweater in a shop window. It was very cheap, so he bought it. When he got home, he put it on. It was all right and he was pleased with it.
In the afternoon, he went to work in his garden. It soon began to rain and Mr Brown had to run into the house. He ran quickly, but he still got wet. Then his sweater started to shrink(收缩)! It got smaller and smaller. Mr Brown tried to take it off, but he couldn't.
In the end, with the help of his wife, he got out of the sweater. Mrs Brown laughed, "You see, you bought a cheap thing, but…"
Mr Brown saw a nicein a shop window. And he bought it.

A．

jacket

B．

coat

C．

sweater

D．

shirt

When he, he put it on.

1．

A． got to the office B． got home C． went to work D． went to the shop It soon began to_________ while he was working in the garden. A． rain B． snow C． cloud D． shine Mr Brown got wet and he tried tothe sweater. A． take away B． take off C． put up D． put on From the story, we know Mr Brown bought. A． a good sweater B． an expensive sweater C． a comfortable sweater D． a cheap but not good sweater

请阅读下面短文，选择最佳答案，将其标号在答题卡上涂黑。
Smiling is the best way of making friends.
When I was thirteen   46   old, my father found a job in the city. So my family moved there. I also came to a   47   school near where we live. My old school was far away. At first, I did not know anyone in my class. I was very lonely  48   I was afraid to make friends with my classmates. I   49   talk to anyone about my problem, and I didn't want my parents to   50   me.
Then one day, something good happened. I was sitting at my desk  51   as usual while my classmates were talking happily with each other. At that moment,   52   came into the classroom. I didn't know who he was. He passed me and then turned back. He looked   53   me and, without a word, smiled. Suddenly, I felt happy, lively and warm. That smile changed my life. I started to talk with the other classmates and made friends. Day by day, I became   54   to everyone in my class.
  55   the smile, I have moved on to a new life. Now, I believe that the world is what you think it is. So smile at the world and it will smile back.

1
A．days	B．weeks	C．months	D．years

2
A．old	B．new	C．same	D．easy

3
A．because	B．before	C．after	D．if

4
A．couldn't	B．mustn't	C．needn't	D．won't

5
A．talk to	B．look after	C．worry about	D．ask for

6
A．early	B．unhappily	C．quickly	D．wonderfully

7
A．a girl	B．a boy	C．some girls	D．some boys

8
A．of	B．on	C．at	D．into

9
A．closer	B．older	C．cooler	D．colder

10
A．Instead of	B．Look forward to	C．Pay attention to	D．Thanks to

This is my beautiful school is near the famous library.

A．

where

B．

which

C．

who

D．

when

--- Can you tell me ______ on the Internet?  --- OK, mum.

A．	how can I use QQ	B．	where can I use QQ
C．	how I can use QQ	D．	whether can I use QQ

Thousands of houses _______ by the floods in Guangxi last month.

A．

destroy

B．

destroyed

C．

have destroyed

D．

were destroyed

more, and you'll improve your spoken English.

A．

Speak

B．

Speaks

C．

Speaking

D．

To speak

--- I've just got a postcard from my pen friend.
--- Let me have a look. Wow.nice card!

A．

What

B．

What a

C．

How

D．

Why