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Scientists think that there has been life on the Earth for millions of years.However,we haven't found life on other planets yet.

The Earth is a planet and it goes around the Sun.Seven other planets also go around the Sun.None of them has an environment with air,so people and things cannot grow.The Sun and its planets are called the solar system (太阳系).The solar system is a small part if our galaxy (星系).

Scientists have also discovered many other galaxies in the universe.But they are a long way away because their light has travelled for many years to reach us.It is hard to understand how large the universe is.

So far,scientists have sent lots of spaceships to look at other planets in our solar system,and some spaceships have gone beyond the solar system.However,no one has discovered any life on other planets yet.

51.How many planets go around the Sun?  

A.Seven.

B.Eight.

C.Nine.

52.In order to look at other planets in our solar system,scientists have sent many.  

A.e﹣mails.

B.planets

C.spaceships.

53.has found life on other planets.  

A.No one.

B.A scientist.

C.A traveler.

54.Which of the following is TRUE?  

A.All the planets have an environment with air.

B.The solar system includes the Sun and its planets.

C.There is only one galaxy in the universe.

55.The best title of this passage should be.  

A.The Earth

B.Our solar system

C.The stars at night.

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相关试题

My name is Tom. I’m nine. This is my mother. Her name’s Linda Johnson. Her telephone number is 13052864515. And this is my father. His name is Mike Johnson. His phone number is 13102884699. And this is my sister. What’s her name? Her name is Mary. Look! The boy is my brother Nick. Mary is eight and Nick is six.
根据短文内容,选择正确答案
Mother is.
A、Mary Johnson B、Mike Johnson C、Linda Johnson
Father’s telephone number is.
A、13120884699 B、13102884699 C、13052864515
Mary is.
A、six B、nine C、eight
My brother is.
A、Tom B、Mike C、Nick
My last name is.
A、Johnson B、Tom C、Mike

My name is Ann. Come and meet my family. This is my grandfather Henry Smith and this is my grandmother Helen Smith. They are very kind(善良的). This is my father Bob Smith and that is my mother Anna Smith. Jack is my brother. He is only five. I love my family.
根据短文内容,选择正确答案
My grandfather’s name is.
A、Henry B、Helen C、Bob
Helen is Ann’s.
A、father B、brother C、grandmother
Jack and I are.
A、friends B、brother and sister C、father and mother
There are(有)people(人) in my family.
A、3 B、4 C、6
Ann’s father is.
A、Bob B、Jack C、Helen

It was the golden season. I could see the yellow leaves dancing in the cool wind. I felt lonely and life is uninteresting. But one day, the sound of a violin came into my ears. I was so surprised that I ran out to see where it was from. A young girl, standing in the wind, was lost in playing her violin.
I had never seen her before. The music was so wonderful that I forgot who I was.
Leaves were still falling. Every day she played the violin in the same place and I was the only listener. It seemed that I no longer felt lonely and life became interesting. We didn't know each other, but I thought we were already good friends.
One day, when I was listening, the sound suddenly stopped. The girl came over to me.
"You must like violin." she said.
"Yes. And you play very well. Why did you stop?" I asked.
Suddenly, a sad expression appeared on her face and I could feel something unusual.
"I came here to see my grandmother, but now I must leave. I once played very badly. It is your listening every day that has encouraged me." she said.
"In fact, it is your music that has given me those meaningful days." I answered. "Let us be friends."
The girl smiled and I smiled.
I never heard her play again in my life. Only thick leaves were left behind. But I will always remember the girl. She is like a dream; so short, so bright that it makes life beautiful.
There are many kinds of friends. Some are always with you, but don't understand you. Some say only a few words to you, but are close to you. I shall always think of those golden days and the girl with the violin. She will always bring back the friendship between us. I know she will always be my best friend.
The story happened _________.

A.in a park B.in a lonely place C.in winter D.in autumn

The writer's life was _________ because of the girl.

A.boring B.colourful C.unhappy D.sad

The underlined word "encourage" means _________ in Chinese.

A.挫败 B.启发 C.鼓励 D.怂恿

What's the best title for the passage?

A.A Musical Girl B.Wonderful Music
C.A Special Friend in a Special Autumn D.How to Be Friends

Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big. And they can eat small animals. One famous meat-eating plant is the Venus flytrap(捕蝇草).
The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.
Why do plants do it? Most plants get what they need from the sun, the air, and the ground. In some places, the ground is very poor. It doesn't have all these important things, especially nitrogen(氮). Animal meat has a lot of nitrogen, so some plants eat meat to get what they need. Let's hope that some of the bigger plants don't get the same idea!
The Venus flytrap is a kind of _________.

A.plant B.animal C.food D.meat

The underlined word "presses" probably means _________ in Chinese.

A.挤压 B.关上 C.打开 D.松开

Why do some plants eat animal meat?

A.Because plants are dangerous to animals.
B.Because animals are dangerous to plants.
C.Because plants want to get what they need from animal meat.
D.Because plants want to protect themselves against animals.

Arriving in New York
There are three airports in New York. When you arrive at one of them, you can take a bus or a taxi to any place in New York.
Eating out
There are many kinds of food in New York and you shouldn't eat at McDonald's every day. There are good restaurants in Little Italy and Chinatown, for example.
Hotels
There are lots of good hotels in New York. The best is The Plaza on 5th Avenue but you don't have to pay a lot to stay in the city; there are lots of smaller hotels and the YMCA near Central Park is great for young people.
Public Transport
In New York ,there's a good bus and subway service. If you are planning to use the subway a lot, you should buy a subway ticket for the journey because it's cheaper. But you don't have to use public transport-there are lots of places you can go to on foot. The Empire Stale Building, 5th Avenue and Central Park. The New York taxis are a part of the city experience, so you should take at least one taxi during your visit!
Places to see
Finally, there are a lot of places to see in New York-Times Square, the Statue of Liberty. And you shouldn't go home without climbing the Statue of Liberty to enjoy the scenery of the city.
Shopping
Shopping in New York is fun. There are big shops on 5th Avenue. They are open seven days a week. But be careful when you look at the prices; you have to pay a special 8% tax (税)on everything you buy in New York.

How many kinds of public transport are mentioned in the passage?

A.Two. B.Three. C.Four. D.Five.

How much do you have to pay if you buy a book of $10 in New York?

A.$10.8 B.$10.08 C.$ l8 D.$10

From the passage, we can learn that _________.

A.people can visit many places of interest in New York on foot
B.New York is not a good place for shopping
C.people must travel by public transport in New York
D.people have to eat only one kind of food in New York

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