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Spring or autumn is the ________ time to come to China.
[
]A
.better B.bestC
.worse D.worst 查看习题详情和答案>>The land is getting ready for(为……做准备)winter. Birds and animals are getting ready, too. Birds fly to southern places, because it’s warm there. Even a little field mouse knows when autumn is here. It wants to leave the farmer’s fields and comes into his house!
On the farm, men are working hard. They are harvesting for winter. The moon is big and bright at night. It looks very, very near. The autumn moon of the harvest time is called a harvest moon.
1.In autumn leaves are getting _________.
A. green B. yellow C. green and yellow
2.On a very cold morning, we can find _________.
A. the autumn is coming B. leaves turn red C. frost on the ground
3.The full moon in autumn is _________.
A. called a harvest moon B. a harvest moon C. big and bright
4.The little field mouse ________ for winter.
A. goes south
B. goes to a warm place
C. leaves the farmer’s fields
5.The story as a whole is about _________.
A. birds and animals B. getting ready for winter C. season
查看习题详情和答案>>
Why can’t some birds easily catch locusts(蝗虫)? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
【小题1】 From the article we learn that locusts .
A.are dangerous to their enemies | B.are easily found by birds |
C.change their colors to protect themselves | D.are small animals |
A.They have to move quietly. |
B.They hide themselves in the day and appear at night. |
C.They have the colors much like their enemies. |
D.They run away quickly. |
A.they live in forests | B.they like brown and grey colors |
C.they move quietly | D.they have the colors similar to the trees |
A.气体 | B.固体 | C.液体 | D.水蒸气 |
A.The Main Use of Colors for Animals and Insects |
B.Colors of Different Animals and Insects |
C.The Change of Colors for Animals and Insects |
D.The Change of Different Animals and Plants |
|
Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.
Why can’t some birds easily catch locusts(蝗虫)? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
【小题1】 From the article we learn that locusts .
A.are dangerous to their enemies | B.are easily found by birds |
C.change their colors to protect themselves | D.are small animals |
A.They have to move quietly. |
B.They hide themselves in the day and appear at night. |
C.They have the colors much like their enemies. |
D.They run away quickly. |
A.they live in forests | B.they like brown and grey colors |
C.they move quietly | D.they have the colors similar to the trees |
A.气体 | B.固体 | C.液体 | D.水蒸气 |
A.The Main Use of Colors for Animals and Insects |
B.Colors of Different Animals and Insects |
C.The Change of Colors for Animals and Insects |
D.The Change of Different Animals and Plants |