Plants and Their Parts
Root, Stem , and Leaf
Most plants have roots, stems and leaves. Plants use these parts to get light and water. They take in water and minerals (矿物质) from the ground.
Flower
The flower is one of the parts of the plant. Flowers come in different colors, shapes, and sizes. Even though they look different, all flowers make seeds.
Fruit
Fruit is also part of the plant. Fruit keeps seeds in safety so they can grow into new plants.
Seeds are made by flowers. They come in all kinds of different shapes and sizes. They can grow into new plants. Sometimes, seeds are kept in safety inside of fruit. Some fruits, like strawberries, have seeds on the outside. In order to grow, seeds need to move to a new place where they can get the water, light, and space they need to live.
Connection
Flowers make seeds. Then flowers turn into fruits. Seeds inside or on the fruit grow into new plants.
1. Which of the following can be used to get light and water? Roots, stems and ________.| A．seeds | B．leaves | C．fruits | D．flowers |
| A．safe | B．different | C．new | D．big |
| A．Three. | B．Four. | C．Five. | D．Six. |
相似题推荐
【推荐1】Our first expression is “in the red”. It is another way of saying that a business is losing money. In the past, numbers in the financial records of a company were written in red ink to show a loss.
A business magazine recently published a report about a television company. The report said the company was still in the red, but was able to cut its loss from the year before.
You can often tell from their faces if the businessmen are in the black or in the red.
A profit(盈利) by a business is written in black numbers. So a company that is “in the black”is making money. An international news service reported that a private hospital in Australia announced it was “back in the black with its first profit in three years.”
Another business expression is “run on the bank”. That is what happens when many people try to withdraw all their money from a bank. A run on the bank usually happens when people believe there is danger a bank may fail or close.
“When a run on banks was starting, there was not much they could do,” said a banking expert, “which means they will lose all the money saved in the bank.”
1. According to the report in paragraph 2, compared with the year before, the television company would ________.| A．make money | B．lose more money | C．lose all the money | D．lose less money |
| A．People can run to the bank to get their money back. |
| B．People can call the police. |
| C．People can do nothing. |
| D．People can ask banking experts for help. |
| A．Expressions about Colours | B．Colours with Good Meanings |
| C．Expressions about Business | D．Colour with Bad Meanings |
【推荐2】According to the Chinese lunar calendar, winter months include solar terms (节气): Lidong (the start of winter), Xiaoxue (minor snow), Daxue (major snow), Dongzhi (winter solstice)， Xiaohan (minor cold) and Dahan (major cold).
Lidong (in November) is the beginning of winter. On this day, after a year of hard work people are happy to have a rest and spend more time with their family. The northern part of China celebrates Lidong as the small Spring Festival. People have dumplings and mutton soup.
Xiaoxue (in November) and Daxue (in December) come after Lidong. During Xiaoxue, northern China can expect snow and temperatures slowly fall below zero degree. Daxue means even more snow and a bigger temperature drop.
When Dongzhi (in December) comes, it brings the shortest day of the year and the longest night. Many places can expect the coldest weather. In ancient (古代的) times, people would start counting “nine cold periods (数九寒天)” from Dongzhi. Every cold period has nine days. They believed that after 81 cold days, spring would arrive.
Xiaohan (in January) usually brings the lowest temperature of the year. Finally, during Dahan (in January), the cold weather fills the fields with snow. All Chinese people are ready to welcome the Chinese New Year after Dahan. The Spring Festival, China’s most important festival, falls at this time.
1. Xiaoxue is usually in the month of according to the passage.| A．November. | B．December | C．January | D．February |
| A．They have a trip with their family. |
| B．They spend less time with their family |
| C．They have a rest and eat delicious food. |
| D．They work harder to make more money. |
| A．the sunniest | B．the longest | C．the coldest | D．the shortest |
| A．In winter, there are only eighty-one cold day |
| B．On Daxue, it must snow heavily in most places. |
| C．After Dahan people begin to welcome Spring Festival. |
| D．Mostly, temperatures fall below zero degree from Lidong. |
| A．The Festivals in Winter | B．Six Solar Terms in Winter |
| C．The coldest time in Winter | D．The Weather and Customs in Winter |
【推荐3】We can’t put certain foods in the fridge (冰箱) to store. Some of them may surprise you.
We all love to have tomatoes.
If you haven’t opened your watermelons, then there’s no need to put them in your fridge. Research has shown that watermelons can be stored at room temperature.
Cucumber (黄瓜) enjoys room temperature.
| A．Do remember that they must be whole. |
| B．There’s no reason to keep honey in a fridge. |
| C．The fridge is not a good place for storing it. |
| D．Nothing makes bread dry faster than your fridge. |
| E．But storing them in the fridge will cause them to lose the taste. |
【推荐1】People like to eat fruits. Because they are not only delicious but also good for our health. We should eat them every day. But different people like different fruits. Some like apples, some like pears, some like bananas, some like...What’s your favorite fruit?
In fact, we should eat all kinds of fruits. Because they come in so many beautiful colors like the rainbow in the sky. Each of the colors is good for us. Red fruits like strawberries have vitamin C(维生素C). Orange and yellow fruits like oranges and bananas have many kinds of vitamins like A, B and C. Blue or purple fruits are good for us, too. So try to fill your bodies with different colors, then you will be healthier.
根据短文内容，判断下列句子正（T）误（F）。
1. From the passage we know that red fruits have vitamin A, B and C.
2. Bananas have vitamin A, B and C.
3. People should only eat orange and yellow fruits.
4. The meaning of the underlined word “rainbow” is “彩虹”.
5. The main idea of the passage is that eating fruits in different colors is important.
【推荐2】Americans love cars. They go everywhere in them. 85% of people in the US go to and from work by car. And most adults have driving licenses.
How it started
America’s love of cars started after the war when soldiers returned home from World War II to rebuild their lives. They borrowed money from the government to buy houses and cars which became the symbols of status (地位) . The more money they had, the bigger their cars were.
Making of roads
During the war, President Eisenhower noticed what good roads Germany had. He decided to build new four-lane (四车道) roads in America. He said if something happened suddenly, the two-lane roads wouldn’t be able to carry all the cars that would suddenly leave the cities. Car and oil companies liked his idea and the building started.
Car lovers
Not just teenagers are crazy about cars. Some Americans love their cars so much that they paint their cars beautifully. These are called Art Cars. Every April there is an activity in Houston, Texas, where they show their cars.
Pollution
Cars have polluted the environment. American President Bush refused (拒绝) a worldwide law that is against pollution. Many countries were angry about it. Bush said he had to think of the American economy (经济) and all the American people that make money from cars. Factories say they want to make cars that pollute less. But others say making cars that pollute less will never be as good as having fewer cars.
1. When did Americans begin to love cars?| A．Before the new two-lane roads were built. | B．Before World War Ⅱ. |
| C．During World War Ⅱ. | D．After World War Ⅱ. |
| A．companies | B．soldiers’ lives | C．houses | D．roads |
| A．They agreed with him. | B．They were unhappy with it. |
| C．They said nothing about it. | D．The passage doesn’t tell us. |
| A．It’s better to have fewer cars. |
| B．It’s better to make cars that pollute less. |
| C．It’s easier to make cars that pollute less. |
| D．It’s easier to make people have fewer cars. |
【推荐3】Every year many people lose their lives on the roads. And about one or two hundred thousand people get hurt in road accidents.
There are rules to make the roads safe, but people do not always obey the rules. If everyone obeys the rules, the roads will be much safer. How can we make the roads safe?
Remember this rule: In England, traffic is on the left of the road. Cars, buses and bikes must all keep on the left side of the road. But in most other countries traffic keeps on the right.
Before crossing the road, stop and look both ways. Look right and left. Then, if you are sure that the road is clear, you can cross the road. If you see little children or old people, help them cross the road. We must teach young children to cross the road safely. We must always give them a good example. And we must not play on the road.
1. Every year ________ people are hurt in road accidents.| A．one or two hundred thousand | B．one or two hundred |
| C．one or two thousand | D．three thousand |
| A．on the right of the road | B．on the left of the road |
| C．on both sides of the road | D．in the center of the road |
| A．道路很拥挤 | B．道路能看得清楚 | C．道路上没有行人 | D．道路上没有车辆 |
| A．Few people lose their lives in road accidents every year. |
| B．In England, traffic is on the left of the road. |
| C．We should teach the children to cross the road safely. |
| D．We should be careful when we cross the road. |
| A．The Road is Safe | B．We Must Help the Old |
| C．How to Make the Road Safe | D．Look Both Ways |
【推荐1】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 communicate with each other. This happens when a plant gets attacked 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)! 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( 根 ). 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(真菌). 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.
根据材料内容选择最佳答案。
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. |
| A．By making noises with their roots. |
| B．By spreading chemicals to each other. |
| C．By connecting the roots of different plants to each other. |
| D．By sharing food and information with each other. |
| 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. |
A． | B． |
C． | D． |
| 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 |
【推荐2】Plants are very important. This is because plants can make food from air, water and sunlight. Animals and man can’t make food from air, water or sunlight. Animals can get their food by eating plants and other animals. Man gets food by eating plants and animals, too. So animals and man need plants in order to live. This is why there are so many plants around us.
There are two kinds of plants : flowering plants and non-flowering plants. Almost all the trees around us are flowering plants. You can know some trees from their flowers and fruits. Non-flowering plants do not grow flowers. You can’t see many non-flowering plants around you.
If you look carefully at the plants around you, you will find that there are many kinds of plants. Some plants are large and some are small. Most of them are green. Thanks to the plants around us, we can live on the earth.
1. Why are plants very important?| A．Because we can get food from plants. |
| B．Because they can give us shade(阴凉). |
| C．Because plants can make food from air, water and sunlight. |
| D．Because they are flowers. |
| A．plants can grow easily | B．plants are green |
| C．we can get what we need from plants | D．we like all kinds of plants |
| A．Flowering plants and fruits. | B．Non-flowering plants and fruits. |
| C．Trees and vegetables. | D．Flowering plants and non-flowering plants. |
| A．much fewer | B．much more |
| C．much larger | D．much better |
| A．Food from Plants | B．Plants Make Food |
| C．Man and Animals | D．Plants Around Us |
【推荐3】Do you know that some strange plants even eat insects (昆虫) or small animals? These plant can’t get enough food from the ground, so they need to eat something else.
A kind of plant smells very sweet and its leaves are red. Many insects love bright colors like red. When they see the red leaves on this plant, they fly down for supper! But the leaves have lots of long hair on them. If an insect touches the hair, the two sides of the leaf shut (合上) together at once. It takes less than half a second! The poor insect is now inside the leaf and cannot get out. It becomes food for the plant. The plant eats it slowly. It takes the plant about 12 to 15 days to finish its meal.
Some small plants can catch insects, but a few big ones can even catch small animals. Another kind of plant has special leaves with hair on them. The hair shines (发光). When insects or animals see the shiny leaves, they come to have a look. If an insect jumps onto a leaf, it gets caught by the hair. The hair moves very quickly and holds the insect so it cannot move. Then the leaf closes round it, and the plant begins to eat at once.
1. Some plants eat insects or small animals because they need ________.| A．to have less food | B．to have more food |
| C．to have more meat | D．to be more beautiful |
| A．by using their mouths | B．by showing their beautiful flowers |
| C．by using their leaves | D．by showing their beautiful colors |
| A．catch insects or small animals very fast |
| B．catch insects or small animals very slowly |
| C．catch and eat insects or small animals very fast |
| D．catch insects or small animals slowly but eat them very fast |
