试题

试题 试卷

logo

题型:阅读选择 题类:常考题 难易度:普通

广东省深圳市2021年中考英语试题

阅读理解

Can plants talk? Modern research has found something amazing: they do communicate with each other.

It has been known for some time that plants use chemicals to conunicate with each other. This happens when a plant gets atacked by insects. The plant gives out chemicals from the leaves that are being eaten. This is like a warning, or a call for help:" I'm being attacked!" When another plant gets the chemicals, it starts to give out its own, different chemicals. Some of these chemicals drive insects away. Others attract the wasps (黄蜂;蜜蜂)! The wasps kill the insects that are eating the plants. Scientists hope to learn more about this plant warning system, so that we can use it to grow more crops.

More surprisingly, plants also use sound to communicate. People can't hear these sounds; but plants are making them. Some plants make noises with their roots. Com and chili plants do this. Some trees make clicking noises when there is not enough water.

Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest. Scientists call this system the "wood wide web". The wood wide web is linked underground by fungi (霉菌). It links the roots of different plants to each other. It is in some ways similar to the Internet we use. Using the wood wide web, plants can share information and even food with each other. However, it may lead to bad effects. Plants may use it to steal food from each other, or spread chemicals to attack other plants. Perhaps one day scientists will learn how to create a "firewall" to help prevent these attacks within the wood wide web.

Scientists are learning more every day about the secret ways in which plants talk to each other. Maybe one day we will know enough about plant communication to be able to "talk" with them ourselves.

(1)、What will plants do when they are attacked by insects?
A、They will kill the insects by themselves.
B、They will control the wasps to kill the insects. C、They will send out signals to ask for help. D、They will produce chemicals as a warning or a call for help.
(2)、How are the wood wide web linked by fungi?
A、By making noises with their roots. B、By connecting the roots of different plants to each other. C、By sharing food and information with each other. D、By spreading chemicals to each other.
(3)、What is the writer's intention of the last paragraph?
A、To give people hope for further studies. B、To praise scientists for their great achievements. C、To call on people to protect the plants on Earth. D、To inspire people to communicate with plants.
(4)、What is the structure of the passage?
A、 B、 C、 D、
(5)、Which is the best title for the passage?
A、The Secret Language of Plants B、The Study about the Plant Warning System C、The Plants that Give Warnings D、Why Scientists Do Research about Plants
举一反三
综合填空

Here is a story: A man sees a butterfly (蝴蝶) . The butterfly tries to get out of its chrysalis (蛹) . F{#blank#}1{#/blank#}sorry for it, the man decides to help. He cuts the chrysalis and the butterfly comes out e{#blank#}2{#/blank#}. Surprisingly enough, the butterfly is unable to fly. If the butterfly doesn't struggle (挣扎;奋斗) to leave the chrysalis, it can't fly!The struggle develops the e{#blank#}3{#/blank#} in the butterfly which makes it fly. Similarly, the challenges of life bring out the best in young people and make the fly.

When people are young, meeting and overcoming challenges will make them s{#blank#}4{#/blank#} and ready to face life.

When we look at successful people, we see that the most successful of them are people who have had to struggle.

One famous businessman, who now o{#blank#}5{#/blank#}many big supermarkets, used to carry clothes on his back and sell them from door to door when he was young. Another successful man is Dennis. His father died when he was only twenty. He had to b{#blank#}6{#/blank#}up a big family. He took up the challenges and overcame them. Today his brothers and sisters are leading s{#blank#}7{#/blank#} lives.

Sometimes challenges do not appear to us because we keep away from them. So, some parents and teachers actively encourage young people to face challenges. They might organize some a{#blank#}8{#/blank#}for young people which provide them with challenges, like rock—climbing, camping, volunteer work and so on. However, just passing exams will not prepare a person for life. We must meet and overcome challenges. The young people of today will become the leaders of t{#blank#}9{#/blank#}. For countries to continue to become successful, it is i{#blank#}10{#/blank#}that the young people learn to meet challenges and overcome them.

 请阅读下面的短文, 并从下列方框里的六个句子中选择五个还原到原文中, 使原文的意思完整、连贯。

A. Try doing a little bit of exercise. 

B. Drink some tea during the break. 

C. Here are a few things you can try. 

D. The only safe answer is to get a good sleep. 

E. You can try some eggs, vegetables or toast. 

F. Drinking it helps improve your energy level. 

You will probably know the feeling—it is time for school, but your eyes are only half-open. Your arms and legs are heavy and your brain is still asleep. So what can you do to stay awake when you are tired? {#blank#}1{#/blank#} 

Eat breakfast

Breakfast is the most important meal of the day, but it is also the easiest to skip(省略). Start your day off with a healthy breakfast. {#blank#}2{#/blank#} They can keep you from feeling hungry and tired in the morning. 

Use water

When you are tired, water is your friend. {#blank#}3{#/blank#} It is even better than drinking lots of coffee. Coffee is fine in the morning, but it is best to drink water after lunch to make sure you can get to sleep. 

Get moving

 {#blank#}4{#/blank#} A few minutes of physical activity can improve oxygen circulation(氧循环)and keep your body active. It doesn't need to be anything difficult. A few push-ups and a short walk may be a great help. 

However, there is still something that you can't do when you are tired. {#blank#}5{#/blank#} Besides, if you find you are often feeling tired and you are not sure why, it is a good idea to speak to a doctor. 

阅读理解

Good and bad manners(礼仪) make up the social rules of a country.They are not always easy to learn because they are often not written in books.Let's see some social rules in Britain.

In the past,most British women didn't go to pubs(酒吧) because it was not considered good behavior for a woman.Now both women and men can drink freely in pubs.

Visitors to Britain often see British people wait in line in public places.It is considered impolite to get on a bus without waiting your turn in line.And if you don't wait your turn,the other people in line will probably warn you to line up loudly.

In some countries it is considered bad manners to eat in the street.However,in Britain it is common to see people having a snack while walking down the road.

British people used to be surprised to see young children in restaurants in the evening because children were not usually taken out to restaurants at night.These days children are playing a more active role and they are now accepted in many restaurants at night.

In recent years,many British companies have banned smoking in their offices and even in the whole buildings.Smoking is also banned on the London Underground,in cinemas and theaters and on most buses.It can be seen less and less in public places.It is also considered bad manners to smoke in someone's house without asking the owner.

Social rules are an important part of every country.The British have an expression for these"unwritten rules":When in Rome,do as the Romans do.

 阅读理解

What would life be like if you were a rocker, a soccer player, a professor(教授)at Stanford University, and a Nobel Prize winner? Carolyn Bertozzi from the US lives such a cool life!

Bertozzi, 56, wins this year's Nobel Prize in chemistry and becomes this year's only female(女性) winner in science and the eighth female to receive the chemistry prize in history.

Bertozzi won the prize for studying the sugar coats of cells(细胞). She has found a smart way to connect cells together. This finding helps to develop better tests for serious diseases like cancer.

However, Bertozzi said she only fell in love with chemistry until her second year at Harvard University."Most of my classmates thought the class was very difficult. But I liked it a lot because in my eyes the problems were challenging even though it usually took me long hours to solve them."

Besides doing science studies, Bertozzi has lived a colorful life. She was a keyboarder in a rock band and she also played soccer, winning an athletic scholarship from Harvard.

Moreover, Bertozzi never forgets her job as a female scientist. "In the late 1980s, only 10 percent of the students were females," she told Chemical & Engineering News. "There were maybe only one or two females in a lab, so we tried to support each other by starting a monthly get-together. Now, I'm so glad to see more and more females taking part in science." In 2022, Bertozzi won an award from the American Association for the Advancement of Science for her work to increase diversity(性别多元)in science.

返回首页

试题篮