Everybody hates rats. But rats may soon be man&#039;s new good friend. What happens after an earthquake? We send i...

题型：阅读选择题类：模拟题难易度：普通

    Everybody hates rats. But rats may soon be man's new good friend.
    What happens after an earthquake? We send in rescue(援救)dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can't get into small spaces. So now a new research project is using a smaller animal to save lives: the rat.
    How does it work? First, the rat is trained to smell people. When this happens, the rat's brain gives a signal(信号). This is sent to a small radio on its back, and then the rescuers follow the radio signals. When the rat's brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person.
    Although there are already robots which can do this job, rats are better. “Robots' noses don't work well when there are other smells around. Rats are good at that.” Rats can also see in the dark, they are cheaper and quicker to train than dogs, and unlike robots, they don't need electricity!
    The “rat project” is not finished, but a scientist says, “It would be great. A rat could get into spaces we couldn't get to, and a rat would get out if it wasn't safe.” Perhaps for the first time in history, people will be happy to see a rat in a building (but only after an earthquake, of course).

（1）、In the writer's opinion, rats may become man's new friend because .

A、they can be food for people B、they can help rescuers to find living people C、they are lovely D、they can completely replace man's rescue jobs

（2）、What does the underlined word “this” mean?

A、An earthquake. B、The rat has smelled a person C、The rat has smelled that someone is alive D、The rat has found a robot.

（3）、Which of the following is NOT true?

A、Rats don't need electricity. B、Rats are better than robots when smelling. C、Rats are as clever as radios. D、Rats can see things in the dark when doing rescues.

（4）、Why does the “rat project” sound great according to the passage?

A、Because rats can get into very small spaces B、Because rats have better noses than dogs. C、Because rats don't like robots D、Because rats are brave.

（5）、Which is the best title of this passage?

A、Ways of saving people B、Rats and robots C、After earthquake D、Rats for rescue

举一反三

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.
If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering(不开花的) plants.
Flowering plants can make seeds(种子). The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit.
Most non-flowering plants do not grow from seeds. They grow from spores(孢子). Spores are very, very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores fall on wet and shady(阴凉的) places, they usually grow into new plants.

阅读短文，根据短文内容选出最佳选项。

Have you ever stood beside the ocean and stared at the waves (波浪)? The way they move is changing! Nothing is more peaceful than watching the movement of water.

Every ocean has waves. Unless you are lucky enough to live by the sea, though, you probably can't watch the waves very often. How would you like to have your own wave machine? Making one is easy and a lot of fun.

Start with the following things: a glass bottle, water, food colouring, some dish soap, vegetable oil, paint thinner (涂料稀释剂), a cap for the bottle *Note: Use the paint thinner only when your parents agree. Put it away carefully.
Step 1: Using the dish soap, wash the bottle carefully. You want your sea to be nice and clean!
Step 2: Fill the bottle halfway with clean water.
Step 3: Now pm food colouring into the bottle. A few drops will colour the water. You might want to use blue or green. The prettiest colour is actually a mix of blue and green!
Step 4: Pour some vegetable oil into your bottle. Pour until the bottle is almost full. Then add some paint thinner until your bottle is full.
Step 5: Cap your bottle gently.

Now that you have made your ocean, put your bottle on its side. Wait a minute. The water win be on the bottom. The oil and paint thinner mixture will be on the top. Now tip (倾斜) the bottle back and forth (反复来回) and watch the waves.

根据语篇内容，从方框中选择恰当的单词，并用其正确形式填空。将单词填写在答题卡对应的横线上，每个单词只能用一次。

different during happen waiting place probably anything they disagree simple

Life is like a long trip. We will make new friends from different cultures{#blank#}1{#/blank#} the trip. Even a{#blank#}2{#/blank#} "hello" can start a friendship（友谊）.

We will explore （探索） new{#blank#}3{#/blank#}and see wonderful things. Under the sea, we will find different kinds of fishes. In space, we will{#blank#}4{#/blank#}meet aliens （外星人） from other planets. We might go to{#blank#}5{#/blank#} planets and learn about the world there. It may sound impossible but who knows what will {#blank#}6{#/blank#} in the future?

There will be lots of exciting things{#blank#}7{#/blank#}for us. All our dreams will come true and we will be able to make a{#blank#}8{#/blank#} in the world. Some people may {#blank#}9{#/blank#} . But I believe that {#blank#}10{#/blank#} is possible if we try our best.

Are you getting ready for the great future?

根据短文内容选择最佳答案。

Languages play an important part in our life. Mother language is a very intimate（密切的）thing to us. For people who speak an ancient tongue as their mother language, it helps them keep their traditions. If you talk to a man in a language he understands, that goes to his head. If you talk to a man in his own language, that goes to his heart.

The associations that lie in the languages bring ideas and pictures to our minds. Associations are just the power of languages. However, how language came into being is unknown. All we know is that some early men invented certain sounds to express thoughts and feelings, actions and things, so that they could talk with each other. Later they agreed on certain signs, which could be put together to show those sounds, and which could be written down. Those sounds, whether spoken or written in letters, are called words

Words become filled with meaning for us by experience; and the longer we live, the more certain words bring back to us the happy and sad events of our past; and the more we read and learn, the more the number of words that mean something to us increases.

Over the last century, more than 400 languages have died out. Some languages are now spoken only by a few dozens of people. Why are humans speaking fewer languages than we once did? The answer has to do with globalization（全球化）. Nowadays, it's more useful to speak certain languages-English is one example-rather than others.

As US writer Rita Mae Brown wrote, "Language is the roadmap of a culture. It tells where its people come from and where they are going." We should learn to choose our words carefully and use them correctly, or they will make ourselves silly and common.

语篇填词

Every town in America has a post office. Some are very t{#blank#}1{#/blank#} at the corner (角落) of a shop. You may be u{#blank#}2{#/blank#} of them. Others are large buildings. In the post office, stamps are sold at any window. The post offices sell stamps at different p{#blank#}3{#/blank#}, from one cent to some dollars. In a{#blank#}4{#/blank#}, you can also buy postcard in the post office. It is more e{#blank#}5{#/blank#} to send a letter than a postcard. It always cost you twice more of the price.

阅读下列短文，从下面每小题所给的A、B、C、D四个选项中，选出最佳选项。

There are many different kinds of birds all over the world. Do you know the bald eagle(秃鹰)? It's very interesting that the bald eagle is not really bald. It has feathers on the head. Bald eagles are large birds. As birds, they can live for a long time.

Bald eagles like eating fish. People often see them flying down from the sky and catching fish out of the water quickly. They like living near open water because they can easily find fish there. Bald eagles also eat some small animals. Bald eagles stay in most parts of North America. They are in the southern states and Mexico all the way to Canada and Alaska. However, a large number of bald eagles live in Alaska and Canada.

The mother bald eagle lays one to three eggs each year. Both parents take care of the eggs. After about35 days, the baby birds break out of the eggs. The young eagles are ready to leave home for food when they are about 13 weeks old.

Hunting and pollution made bald eagles in the United States in danger. Some strict rules to stop hunting the eagles and to cut pollution have allowed the bald eagles to come back.

All in all, people should try their best to help protect the birds. They are human beings' good friends. Look up in the sky the next time you are out in nature. You might see one of these wonderful birds in the sky.

相关试卷

公司介绍

服务介绍

帮助中心