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题文

Today there are 7 billion people on the earth.By the year 2050 there may be 9.0 billion.We will have a lot more people to feed.We need more food.
One way to produce more food is by growing stronger plants.For thousands of years,farmers have made plants better.Every season,they pick the best plants for the next season.It works very slowly.Since1983 scientists have been able to change plants more quickly by changing their genetic(遗传的) material. Foods from plants grown in this way are called genetically modified foods(转基因食品),or GM foods.
By changing the genetic material of a plant,it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases:a kind of rice is being prepared,for example,which stops people from becoming blind.Rich countries produce GM foods because they are easy to grow and they bring in more money.Poor countries are interested in them because they help produce more food.
GM plants are not natural.No one knows how good or bad they are.Making GM foods is only one way of feeding people in 2050.But there are strong feelings against them,because they are unnatural. They may feed people,then hurt them or their children later.But both rich and poor countries are very interested in their use,and they are not going to die.In 2050 we may think differently about them.
Who invented the GM plants?

A.Farmers. B.Workers
C.Scientists. D.Plants.

People plant the GM plants because     .

A.they make plants strong against diseases
B.they are unnatural
C.they can help in human diseases
D.both A and C

What do you think of the GM plant?

A.It grows too slowly.
B.It is bad for people’s body.
C.It can greatly help the poor countries.
D.It produces less food than the general plant.

Why do some people dislike the GM plants?

A.The GM foods may harm the human body.
B.The GM foods have terrible taste.
C.The GM foods are bad for the adults.
D.The GM foods are not cheap.

From the passage we can find out__________

A.the GM plants can produce more food
B.scientists want to make more money
C.scientists find the GM plants by accident
D.scientists work on the subject for fun
科目 英语   题型 阅读理解   难度 中等
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相关试题

There are many wetlands in China and some of them have become the world’s important wetlands.The Chinese Yellow Sea Wetlands are among them. They are in Yancheng, Jiangsu Province. They are home for many different kinds of animals. The world’s largest Milu Deer Nature Reserve is in them. More than 700 Milu deer live freely there. There are not many red-crowned cranes in the world, but every winter you can see some in the Red-crowned Crane Nature Reserve in the Yellow Sea Wetlands.
The temperature in the wetlands is usually neither too high nor too low. There is a lot of rain and sunshine, too. They are really good places for wildlife. Offering(提供) food and home for some special kinds of animals is not the only reason why we need to protect wetlands. Wetlands are iimportant because they also prevent flood. But some people want to change the wetlands to make more space for farms and less space for wildlife.
Luckily, more and more people are beginning to realize the importance of wetlands and wildlife. Every year, on February 2nd, many activities are held to tell people more about wetlands.
The Chinese Yellow Sea Wetlands are in the ___________of China.

A.east B.south C.west D.north

Usually the weather in the wetlands is ____________

A.hot B.pleasant C.cold D.dry

The World Wetlands Day is on _______________

A.April 22 B.June 25
C.February 2 D.March 22

We must protect wetlands because ___________________

A.they are home for wildlife
B.they can offer food to animals
C.they can prevent flood
D.all of the above

阅读下列内容,从每小题所给的四个选项中选出一个最佳答案。

You may telephone ____________ for help if your younger brother or sister is ill.

A.Yang Jun B.Liu Hong
C.Li Nan D.Zhang Hui

We can call ___________ when we want to take a taxi to the Hangzhou Railway Station.

A.13973098479 B.0745-2709348
C.1992301636 D.13704348529

Of the four, we can’t send a fax to the _____________.

A.driver B.teacher C.doctor D.Farmer

What is the sky(天空)? Where is it? How high is it? What lies above it? These questions are hard to answer, aren’t they?
Is the sky blue? The sky has no color. We know that there is air around the world. When planes fly, they need air to lift their wings(翼) . Planes cannot fly very high because when they go high, the air gets thinner. If we go up about 1,200 kilometers from the earth, we find there is no air.
Perhaps(也许) we can answer some of our questions now. The sky is space(空间). In this space there is only the sun, the moon and all the stars.
What is the sky?

A.It’s the clouds B.It’s space.
C.It’s air D.It’s nothing

The sky _____

A.is blue B.is white
C.is black D.has no color

Planes cannot fly very high because _________.

A.the air becomes thinner
B.the flying machine is not good
C.people will be afraid if the planes fly too high
D.it is not necessary for planes to fly so high

If we go up about 1,200 kilometers from the earth, we find ___________.

A.there is more air B.there is less air
C.there is nothing but air D.there is no air

In space there is _________.

A.nothing B.air everywhere
C.everything D.only the sun ,the moon and all the stars

Hello, everyone! Today I want to introduce my best friend to you. Her name is Rose. Rose is an outgoing (外向型) girl. She is not tall. She is very thin. She has a round face and two big eyes.
Her hair is short. She often wears a pink dress, because pink is her favourite colour. She always has a smiling face. Everyone likes her very much. So she has many friends.
Rose is a clever girl. She's our monitor. She works hard at school every day. She is good at English and Maths. She always does her best to help others with their study. She likes asking teachers questions. Her homework is always clean and tidy. Her handwriting is very beautiful. She is a top student in our class.
Rose is a versatile (多才多艺的) girl. She can play the piano. She can draw pictures well. She can play table tennis. She can swim. She can do many things very well.
Rose has a pet. It is a small dog. Its name is Xiao Xiong. They are good friends. I like it, too.
Do you like my best friend, Rose? Can you tell me about your best friend?
What colour does Rose like best?

A.Yellow. B.Pink. C.Black. D.Red.

What subject is Rose good at?

A.Chinese. B.Maths. C.History. D.Science.

What is Rose like?

A.She is tall. B.She is strong.
C.She is thin. D.She is fat.

What animal does Rose keep as a pet?

A.A dog. B.A cat. C.A duck. D.A pig.

Which of the following sentences is NOT true?

A.Rose's hair is long.
B.Rose's homework is always clean and tidy.
C.Rose works hard at school.
D.Rose is an outgoing girl.

Once Mr King had a cat, and he loved it very much. He called it “Sky”, because he thought “Sky” wa s the strongest name in the world.
One day he had a meal at a restaurant with his cat. He met his old friend. He told him about his lovely cat and its name. His friend said, “How foolish you are! Sky is not the strongest thing in the world. My cat is called ‘Cloud’ because cloud is stronger than sky.” After hearing this, Mr King called his cat “Wind” because he thought wind wa s stronger than cloud.
Aft er a few days he suddenly(突然)thought that “Wall” was stronger than wind. And “Mouse(老鼠)” was stronger than wall. So he went to his friend to ask for an idea. His friend said, “Don’t you think ‘Cat’ is stronger than mouse?” “Yes, but...”
The man thought and thought and then decided his cat’s name had better be “Cat” because a mouse was always afraid of a cat. Don’t you think Mr King is very silly(傻的)or funny?
Mr King ________ his cat very much.

A.didn’t like B.loved C.hated D.hit

His cat’s first name was ________ .

A.Sky B.Cat C.Wind D.Cloud

He decided his cat’s last name was ________ .

A.Mouse B.Wall C.Cloud D.Cat

Mr King called his cat “Cat” because he thought ________ .

A.a cat was always afraid of a mouse
B.he liked this beautiful name
C.the name had more meanings
D.a mouse was always afraid of a cat

Mr King gave his cat ________ names in all(总共)and at last he called it “Cat”.

A.six B.five C.four D.two

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