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When we talk of plants, most of us will think of things that grow from the ground and have green leaves, but there are plants that do not look or act like other plants. Some of these belong to a special class of plants called fungi.
Fungi may appear almost everywhere. They commonly grow in wet places where they call get food and water easily. Because fungi do not have green leaves to make their own food, but fungi must take their food from animals, other plants or water. Some fungi live on dead or rotting(腐烂的)wood, while others grow on living trees or in dirt or moss(苔藓). Mushrooms(蘑茹)are the best-known fungi.
There are many kinds of mushrooms appearing in all shapes and sizes. For example, cauliflower(菜花)mushrooms are found in forests from July to October.They can grow to be as heavy as fifty pounds! They grow at the foot of trees Squirrel’s(松鼠)bread is another kind of wild mushroom Its appearance and use Call explain its name. These fungi look like small golden cakes Squirrels can easily eat them or carry them off to their hole to eat later.
The mushrooms found in food stores are carefully grown by people who know they are safe to eat. People are warned never to touch of taste wild mushrooms because some of them are deadly. Even less dangerous ones cart still make a person very sick..
1.Where does Fungi not grow? .
A. On dry wood
B. In places full of water
C. On living trees
D. Behind houses
2.Where can Fungi take food? .
A. From their green leaves
B. From water
C. From rotting wood
D. From people
3.Squirrel's bread is a kind of .
A. tree B. animal C. food D. medicine
4.People are advised not to eat wild fungi because .
A. it is unfit for main food
B. it may be dangerous to people
C. it doesn't taste so good
D. it's strange smell may do harm to people
5.The word "fungi" in this passage means
A. 草本植物 B. 菌类植物 C. 食用蘑菇 D. 无叶植物
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Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big. And they can eat small animals. One famous meat-eating plant is the Venus flytrap.
The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly touches one of the hair, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.
Why do plants do such things? As we know, most plants get what they need from the sun, the air, and the ground. In some places, the ground is very poor. It does not have all these important things, especially nitrogen( 氮 ). Animal meat has a lot of nitrogen, so some plants eat meat to get what they need. Let’s hope that some of the bigger plants don’t get the same idea!
1.The Venus flytrap is a kind of _______.
A. food B. animal C. plant D. meat
2.Why do some plants eat animal meat? Because _______.
A. plants are dangerous to animals
B. animals are dangerous to plants
C. plants want to get what they need from animal meat
D. plants want to protect themselves against animals
3.Where can most plants get what they need?
A. From the people B. From the animals
C. From the soil D. From the sun, the air, and the ground
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challenge a world famous scientist!
Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator (酸碱指示剂). They want it to take the place of litmus (石蕊) paper.
"We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other."
British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world.
But when the kids did some experiments in class last winter, they saw that the litmus paper didn't turn very blue with base matter. It's hard to get a clear result.
Will there be a better indicator than litmus paper? The three kids decided to try and find out!
How? They went to collect over 40 plants in parks, gardens and markets. Then they ground (研磨)
leaves, flowers and stems (茎) to get the pigments (色素) from them.
The kids mixed pigments with acid and base. They spent months watching carefully to see which
paper showed the best colour change. They decided it was the litmus paper!
"It's our first scientific journey, Huang said, "But it makes me want to try harder."
B. Their headmaster.
C. Robert Boyle
D. Thomas Edison
B. animal
C. paper
D. liquid
a. Three kids collect red cabbage everywhere.
b. The kids mixed pigments with acid and base.
c. The kid ground the red cabbage.
d. The kids get pigments from it.
B. b-a-c-d
C. a-c-d-b
D. b-c-d-a
B. litmus paper
C. any plant
D. any flower
B. about the three kids' spirit
C. scientist were wrong
D. the kids are heroes
big. And they can eat small animals. One famous meat-eating plant is the Venus flytrap (捕蝇草).
The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are
like the pages of a book. They can open and close very quickly. Inside the leaves, there are three small
hairs. If a fly touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an
hour, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.
Why do plants do it? Most plants get what they need from the sun, the air, and the ground. In some
places, the ground is very poor. It doesn't have all these important things, especially nitrogen (氮).
Animal meat has a lot of nitrogen, so some plants eat meat to get what they need. Let's hope that some
of the bigger plants don't get the same idea!
B. animal
C. food
D. meat
B. some parts of Africa
C. dry parts of the United States
D. wet parts of England
B. all plants can eat animals
C. some plants can eat people
D. some plants can eat animals
B. 关上
C. 打开
D. 松开
B. animals are dangerous to plants
C. plants want to get what they need from animals' meat
D. plants want to protect themselves against animals
And they can eat small animals. One famous meat-eating plant is the Venus flytrap (捕蝇草).
The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like
the pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs.
If a fly touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the
leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.
Why do plants do it? Most plants get what they need from the sun, the air, and the ground. In some
places, the ground is very poor. It doesn't have all these important things, especially nitrogen (氮).
Animal meat has a lot of nitrogen, so some plants eat meat to get what they need. Let's hope that some
of the bigger plants don't get the same idea!
B. animal
C. food
D. meat
B. some parts of Africa
C. dry parts of the United States
D. wet parts of England
B. all plants can eat animals
C. some plants can eat people
D. some plants can eat animals
B. 关上
C. 打开
D. 松开
—Because______.
B. animals are dangerous to plants
C. plants want to get what they need from animal meat
D. plants want to protect themselves against animals