Ants are everywhere. They live in forests, fields, deserts and cities, all over the Earth. But how much do you know about them?
Ants are social animals. They live and work in groups. They always build nests, find food, and raise babies together. They have their own colonies (群体). Ant colonies are large or small, from just a few ones to millions!
Usually, ants are divided into (被分成) several different classes (等级) such as queens, workers, males and so on. Queens are females and they eat more as larvae (幼虫). Queen ants are usually the biggest ants in colonies. They lay all the eggs. A queen ant can live for several tens of years. Males have wings and they never help with the chores. They can only live for a few weeks. Workers are females and they eat less as larvae. Workers do all the “housework” from building and cleaning the nest to collecting food. Workers are wingless and usually live for several months.
Ants are also clever architects. They can build their homes in different places. You may find their nests under rocks or in the trees. What’s more, the nests that they build are perfect for ant larvae to grow up. One ant by itself cannot do much harm to many larger animals. But they can beat much bigger and stronger enemies in large groups. By acting together, ants can even protect their colonies against animals. If you are lucky enough, you may see such a wonderful fight!
Ants are successful in the animal world. But have you learned the secret behind their success?
1. Which of the following is TRUE about ants?A.You can’t find ants in cities. |
B.Ant groups are different in size. |
C.Queen ants’ life is very short. |
A.have big wings | B.eat the most as larvae | C.help keep their nests clean |
A.建筑家 | B.画家 | C.医生 |
A.They are lucky enough. |
B.They always act in groups. |
C.Their enemies are not strong. |
A.Nature. | B.Travel. | C.Food. |
相似题推荐
【推荐1】A lot of animals travel from one place to another. We call this migration.
In Africa, large animals, like elephants and zebras, migrate to find food and water. They usually follow the same ways every year.
A lot of birds migrate to find food and better weather, too. They are usually birds that eat insects. They spend the summer in northern Europe, because there are lots of insects there. In the winter there aren’t any insects, so the birds fly south to southern Europe and Africa.
Some insects migrate, too. In North America, millions of monarch butterflies fly south to spend the winter in Mexico, California and Florida, where it’s warmer. They travel 50-65 km each day and they travel about 1,125 km.
Some fish migrate to breed. Salmon can swim over 20,000 km in their life. They are born in rivers in Ireland, Scotland and other places in northern Europe. The young fish swim down the river to the sea and into the Atlantic Ocean. They live in the ocean until they are adults.
Then they return to the river where they were born. They lay their eggs in the river and then they usually die. Salmon do this because their eggs are safer in the river. Other fish can’t eat them.
Arctic terns travel the furthest when they migrate. They spend the summer in the Arctic, but when winter comes they fly to the Antarctic, because it’s summer there. The next year they fly back to the Arctic again. In one year these small birds travel 36,000 km from one end of the earth to the other and back again.
Nobody knows how they do it.
根据材料内容选择最佳答案。
1. In which area can you see many birds in summer?
A.Africa. | B.Atlantic Ocean. |
C.Northern Europe. | D.Southern America. |
A.They hurry to find insects. | B.They want to look for water. |
C.They have to produce young. | D.They need to find better weather. |
A.Because they are getting ready to die there. |
B.Because they want to go where they grew up. |
C.Because they won’t be eaten by other big fish. |
D.Because they want to lay eggs in a safer place. |
A.The time of migration. | B.The purpose of migration. |
C.The distance of migration. | D.The direction of migration. |
A.The secret of animals | B.The migration of animals |
C.The eating habits of animals | D.The living environment of animals |
【推荐2】Ants (蚂蚁) are kind of like humans, because they live in big “ant cities”. In the ant cities, thousands of ants work together to build homes, find food and so on. Each ant city has a queen, and she mainly lays (产) eggs. In these ant cities, there are special rooms for keeping food and taking care of baby ants. Some ants have to pick up all the rubbish from the city and bring it outside the city. Do you think all that rubbish might be too much for a little ant? Even though they are so small, ants can carry some heavy things.
The door to their underground world is what we call an “anthill (蚁丘)”. The anthill is made up of sand and dirt. In the middle is a little hole through which the ants can climb down into their underground city. Imagine trying to organize such a thing! You’d think that ants must be very good communicators.
The interesting part about ants is that they can’t talk. But this doesn’t stop these little animals. Ants communicate by sending out different chemicals (化学物质) from their bodies for other ants to smell. For example, if an ant finds a piece of food, it will send out a kind of chemical that says “there is food here”. The other ants will follow their noses toward the food until it is all gone. If there is something perilous around, ants will send out a kind of chemical that says “stay away”. Each city of ants has its own special smell. This way ants can tell if there is danger.
So next time you see ants, stop and think about how amazing these little animals are and what their lives are like.
1. What does the queen ant mainly do?A.She mainly lays eggs. | B.She mainly takes care of baby ants. |
C.She mainly finds food. | D.She mainly picks up all the rubbish. |
①The ant city ②The anthill
a. It is made of sand and dirt. b. It has a queen ant.
c. Ants climb down into their underground city through the little hole in the middle of it.
d. It has special rooms for keeping food and taking care of baby ants.
e. Thousands of ants work together in it. f. It is the door to their underground world.
A.①-abc ②-def | B.①-bde ②-acf | C.①-be f ②-cdf | D.①-abd ②-bcf |
A.By telling some experiences. | B.By giving some examples. |
C.By explaining the meaning. | D.By showing the background. |
A.Peaceful. | B.Safe. | C.Dangerous. | D.Funny. |
A.To ask us to help ants live better. | B.To show us ants are our friends. |
C.To encourage us to protect ants. | D.To tell us something about ants. |
【推荐3】Here is an experiment (实验) to see how ants can organize some clever teamwork.
1. First you need some ants. You may have to wait until the summer to find them on paths around your home. | 2. When you have found an ant, put a thin slice of fruit in front of it. It may eat some of it or carry bits away. |
3.Check the fruit after an hour. Have other ants been attracted to it? If so, what are they doing? | 4. When there are lots of ants, move the fruit to a new position a little to the side. What do the ants do? |
What’s going on?
You can see one of the best examples of insect teamwork by watching ants. If one ant finds food, it leads others there to eat it too. They follow each other by making long trait. The ants go back and forth collecting food, to take it back to their nest (穴). When you move the fruit, the ants will still find it. But instead of making a new direct route (路线) to the food, they will follow each other through their old trail route.
1. What will happen if one ant finds food?A.The ant will eat all the food. | B.The ant will watch other ants. |
C.The ant will lead others to the food. | D.The ant will wait until others come. |
A.fail to find it | B.give up looking for it |
C.make a new direct route to it | D.get to it through the old trail route |
a. Move the fruit to a new position.
b. Find an ant.
c. Check the fruit an hour later.
d. Put a thin slice of fruit in front of the ant.
A.a—b—c—d | B.b—d—c—a | C.d—b—c—a | D.c—a—d—b |
A.The experiment is done successfully in the lab. |
B.Ants do the experiment to show their team spirit. |
C.Careful watching does little help in this experiment. |
D.We can find out some facts by doing small experiments. |
【推荐1】Ping-pong is an interesting game.
A.People also called ping-pong table tennis. |
B.Ping-pong started in England. |
C.Today ping-pong is in the Olympic Games. |
D.The table is small. |
E.People called it ping-pong for the sound. |
【推荐2】Animals do many different things to get through the winter. Some of them migrate. They travel to other places where the weather is warmer or they can find food.
Many birds migrate in autumn. Because the trip can be dangerous, some travel in large groups. For example, wild geese fly in noisy, "V"-shaped groups. Other kinds of birds fly alone.
Some animals stay active in winter. They must change themselves as the weather changes. Many change their doing or their bodies. For example, snowshoe rabbits grow white fur to help them hide in the snow.
Water makes good protection for many animals. When the weather gets cold, they move to the bottom of lakes and rivers. Frogs and many fish hide under rocks or fallen leaves. Cold water holds more oxygen than warm water, and frogs can breathe through their skin.
Every type of insect has its own life cycle and that is the way it grows and changes. Different insects spend the winter in different forms of their lives. Some insects also spend the winter without moving. Some insects spend the winter as pupae(蛹).Other insects die after laying eggs in autumn. The eggs change into new insects in spring and everything begins all over again.
根据短文内容,判断句子正(T)误(F)。
1. Some birds fly in large groups in order to be safe.
2. Snowshoe rabbits spend the cold winter by sleeping for the whole winter.
3. Frogs and fish will die in winter.
4. Different insects grow and change in their own ways.
5. The passage is mainly about how living things get food in winter.
【推荐3】If one day you could travel to the moon, what would you bring with you? NASA’s new “lunar backpack” may be a good choice.
NASA has developed a “lunar backpack” for future astronauts on the moon. The backpack could give astronauts the ability to create a 3D map of the surface of the moon, according to the Daily Mail.
Remote sensing in the backpack uses light detection(检测)and ranging laser (测距激光) light to measure range. It makes use of an innovative type of scanner to provide the range of millions of measurement points per second. These measurement points instantly create a real-time navigation system, delivering a 3D high-resolution map of the surrounding terrain (地形), according to NASA.
The backpack will ensure the safety of astronauts and rover (探测器) vehicles in the GPS-denied environment of the moon. It can identify distances to far-off landmarks and show explorers in real time how far they’ve come and how far is left to go to reach their destination, Michael Zanetti, project lead of the backpack, said in a statement.
1. What can NASA’s new lunar backpack help astronauts do?A.Travel to the moon faster. |
B.Create a map of the moon’s surface. |
C.Provide a place for astronauts to live. |
D.Give astronauts energy for walking on the moon. |
A.Why NASA developed such a backpack. |
B.What astronauts do on the moon. |
C.How astronauts use 3D maps. |
D.How the lunar backpack works. |
A.working on the moon is safer than on Earth |
B.building landmarks on the moon is important |
C.the lunar backpack works like a GPS on the moon |
D.it’s hard to communicate with astronauts on the moon in real time |
A.Being safe on the moon |
B.Traveling in space without a map |
C.Great lunar invention for astronauts |
D.NASA’s new mission on the moon |
【推荐1】In the time of Yellow Emperor, there were no written words. People remembered things by tying knots(打结)in ropes and carving(雕刻)shapes on stone walls.
One day, Yellow Emperor discussed a matter with a wise man named Cang Jie. Cang took out a piece of knotted rope, but he found it was destroyed. It was impossible for him to remember the matter clearly. Then he turned to a stone wall, but he could hardly read the shapes on it because they were carved by another person.
“The ropes will be destroyed because of some unknown reasons. And the shapes can only be read by a few people,” Yellow Emperor said to Cang. “Can you come up with something better?”
Cang thought over the problem for days and nights. One morning after a heavy snowfall, he saw the footprints of some different animals. These footprints helped him to recognize what animals passed by. Cang suddenly had an idea. He drew a tiger and a bear on the snow-covered ground. But soon, he found this took too much time. He realized that he had to make the drawings easier.
All the shapes on the stone walls came into his mind. Cang kept making all kinds of shapes on the ground. He paid attention to drawing. To show the Sun, for example he used a circle with a dot in the middle. A half-circle and a vertical line(垂直线)made up the Moon. And three lines that are not straight were used to show water. These symbols(符号)shone brightly in the snow.
In the end, Cang created a whole set of symbols to remember things. People could easily understand these symbols. Since then, they have been able to write down their own history in this way.
1. What does the underlined word “recognize” in Paragraph 4 mean?A.Accept. | B.Know. | C.Praise. | D.Control. |
A.By telling stories. | B.By listing numbers. |
C.By comparing facts. | D.By giving examples. |
A. | B. | C. | D. |
A.The reason why people tied knots. |
B.The reason why Cang loved drawing. |
C.What the history of carving shapes is. |
D.How Cang created symbols to remember things. |
【推荐2】Tea, coffee and cocoa are three major drinks all over the world. Tea is drunk by the largest number of people in the world. Tea began to be known by the world over a thousand years ago and has been an important Chinese export since then. Tea has a history of over 4,000 years and China is the home of tea. In ancient China, tea was used as a kind of medicine, while today people drink tea every day.
Longjing, Puer, Wulong and Tieguanyin are all famous tea. Thanks to the weather and rich soil in Fujian, Zhejiang and Yunnan, tea is mainly produced in these provinces.
The word for tea in different languages came from Chinese, like “cha’i” in Russian. And the Japanese character for tea is written exactly the same as it is in Chinese.
Over the past centuries, Chinese people have developed their tea culture, includes tea planting, tea leaf picking, tea drinking and so on. Tea is also popular in some old sayings, like “A friendship between gentlemen is like a cup of tea”.
根据短文内容,判断正(T)误(F)。
1. Tea, wine and cocoa are three major drinks all over the world.
2. Tea has a history of over 4,000 years and China is the home of tea.
3. Today people drink tea every day because it is used as a kind of medicine.
4. Tea is mainly produced in Fujian, Zhejiang and Yunnan only because of the nice weather.
5. Chinese tea culture includes tea planting, tea leaf picking, tea drinking and some old sayings like “A friendship between gentlemen is like a cup of tea”.
Tom can play basketball, volleyball, and he can swim. Mike can play the violin, the trumpet, the drums and the guitar, and he can swim,too. Tom and Mike like computers very much. Can they join Sunson School Trip?
1. Tom and Mike are good .
A.teachers | B.friends | C.children | D.musicians |
A.They want to play computer games. | B.They want to go to a movie. |
C.They want to find jobs. | D.They want to go to school. |
A.They can do the job of playing soccer. |
B.They can do the job of doing Chinese kung fu. |
C.They can be in the Rock Band. |
D.They can help kids with swimming. |
A.playing volleyball | B.playing the violin | C.computers | D.dancing |
A.play the guitar | B.play basketball | C.play the piano | D.play volleyball |