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更多“The animals are moved onto dif…”相关的问题
The strong ants move ______ .
A．alone
B．in large groups
C．at night
A．To improve the diets of hens
B．To move chickens into large farms
C．To make chickens sleep before they are killed
D．To improve chickens' lives
A．A pond can be compared to a round-the-clock restaurant.
B．All kinds of plans and animals will move in soon after a pond is dug.
C．Few of the animals in a pond live on plants.
D．Not all the animals in a pond eat other animals.
When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration (迁移) is probably the migration of fish, which is called "salmon". This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is old, it returns to its birthplace in fresh water. Then it gives birth and dies there. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea.
Recently, scientists have studied the migration of a kind of lobster (龙虾). Every year, when the season of bad weather arrives, the lobsters get into a long line and start to walk across, the floor of the ocean. Nobody knows why they do this, and nobody knows where they go.
So, sometimes we know why humans and animals move from one place to another, but at other times we don't. Maybe living things just like to travel.
Most animals move from one place to another at a certain time to ______.
A．give birth
B．enjoy warmer weather
C．find food more easily
D．find beautiful places
When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration(迁移)is probably the migration of fish, which is called"salmon". This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is old, it returns to its birth- place in fresh water. Then it gives birth and dies there. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea.
Recently, scientists have studied the migration of kind of lobster (龙虾). Every year, when the season of bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where they go.
So, sometimes we know why humans and animals move from one place to another, but at other times we don't. Maybe living things just like to travel.
Most animals move from one place to another at a certain time to ______.
A．give birth
B．enjoy warmer weather
C．find food more easily
D．find beautiful places
Which of the following statements is true？
A．Developing fever is the privilege of warm-blooded animals, so sick lizards can not run a fever.
B．Invertebrates also have the ability to raise their temperature,
C．The internal temperatures of warm-blooded creatures are independent of the weather, so are the cold-blooded animal.
D．Sick lizards move into the sun to develop lever.
A．they like to live in small family groups
B．they like to move from place to place in search of more food
C．they like to eat eggs, small animals, nuts and insects
D．it rains too often in the deep forests
The deserts of the world are not uninhabited (not lived by people). People also live outside oases(绿洲), but these people are not farmers. They have camels, goats, donkeys, sheep, etc. These animals can live on the desert plants and do not need much water.
The people of the desert have to move constantly from place to place, or they must always look for grass or desert plants for their animals. They usually live in tents. When there is no more food for their animals, they fold up their tents, put them on their camels and donkeys, and move to another place. In good years, when there is enough food for their animals, they trade their skins and their goats and camel hairs with the people of oases for wheat and fruit. But in bad years, when there is not enough food for their animals, the people of the desert would attack the oases people. But they are also hospitable, no man in the desert would ever refuse to give a stranger food and water.
In the desert______.
A．it rains in spring only
B．there is some rain, but far from enough
C．it rains for a short time every month
D．the rainfall is just enough for the plants
Plants, even more than animals, must be well adapted to climate in order to survive. They cannot move about or take shelter but must be equipped to endure whatever weather conditions are likely to occur.
In the harsh conditions of tundra, for example, low growing mosses, lichens, and a few flowering plants all hug the ground for shelter from icy winds.
Animals, despite their ability to move about and find shelters, are just as much influenced by climate as plants are. Creatures such as the camel and the penguin are so highly specialized that they have as extremely limited distribution. Others, such as bears, are flexible enough to adapt to a broad range of climates. Oceandwelling organisms are just as sensitive to climatic changes—in this case temperature and salinity (含盐量)—as land animals. Reef corals can survive only in clear warm seawater. Certain foraminifers are so sensitive to changes in their environment that their presence can be taken as an index of sea temperature. Human beings are among the least specialized of all animals and can live almost anywhere. Their clothes and their homes act as a sort of "miniature climate" that can be taken with them everywhere.
Which of the following is neither plant nor animal？
A．Tundra
B．Reef coral
C．Penguin
D．Camel
Examples of automobiles, rockets and submarines are used to show that .
A．humans are the most clever living creatures in the world
B．human inventions enable us to travel in almost any kind of environment
C．humans are very successful in inventing transportation tools
D．humans can’t move like other animals in any circumstances
A.to avoid being eaten by arctic animals
B.because fertilizer is not readily available
C.to minimize exposure to the cold
D.because unfrozen water supplies are very scarce
