One warm day when I was walking in my backyard, I saw a pinecone(松球) on the ground. I picked it up, and some seeds fell out of it. Those seeds would be a tasty treat for a squirrel (松鼠).
I realized that pinecones were not always open like this one. Sometimes cones were tightly closed. I decided to find out why.
I gathered pinecones from my backyard. I watched them for over a year. Here’s what I learned.
Pinecones open and close slowly as the weather changes. When it’s cold or wet, cones are tightly closed. This protects the seeds inside from rain and snow.
When the weather becomes warm and dry, pinecones open. On a hot day, you might even hear the sound of cones popping open. The seeds inside may then fall to the ground. The wind may blow the seeds to places where they can grow into new pine trees. A seed has a better chance of taking root and growing when the weather is warm.
“Pine seeds are an important source of food for many animals,” says Monty Maldonado. He is a pinecone expert with the United States Forest Service. He says squirrels depend on pinecone seeds for most of their meals. They spend lots of time gathering and storing the cones. Maldonado says some animals eat only the seeds from a pinecone. But red squirrels and gray squirrels will eat the whole thing.
Small animals aren’t the only creatures that eat pine seeds. Maldonado says big grizzly bears (灰熊) and people eat them, too.
Seeds inside a pinecone are important for the growth of new trees and as food for animals. It is the pinecone’s job to protect them. So take note of the pinecones you see on the ground. They hold treasures inside.
45．According to the passage, when it is rainy, cones          .
A．are open   B．are usually shut       C．grow quickly    D．stop growing
46．According to Monty Maldonado,        .
A．not all squirrels eat the whole pinecone        
B．pine seeds are difficult to find for many animals
C．people in the forest are sometimes attacked by grizzly bears
D．most small animals depend on pinecone seeds for their meals
47．We can learn from the passage that on sunny days         .
A．seeds may fall out of the cones      
B．squirrels stay still in their nests      
C．it’s difficult for a seed to take root
D．the wind will put the pine trees in danger
48．In the last paragraph, the author points out that         .
A．more and more new trees need to be planted in future 
B．people should be responsible for protecting animals
C．people should be careful not to damage the pinecones  
D．squirrels now have few seeds to feed themselves
49．Which of the following is TRUE according to the passage?
A．The author learned why pinecones are not always open in the forest.  
B．The author gathered pinecones and observed them for a month.  
C．The author is fond of gathering and storing the cones. 
D．Pine trees are precious to animals and people.

One warm day when I was walking in my backyard, I saw a pinecone(松球) on the ground. I picked it up, and some seeds fell out of it. Those seeds would be a tasty treat for a squirrel (松鼠).

I realized that pinecones were not always open like this one. Sometimes cones were tightly closed. I decided to find out why.

I gathered pinecones from my backyard. I watched them for over a year. Here’s what I learned.

Pinecones open and close slowly as the weather changes. When it’s cold or wet, cones are tightly closed. This protects the seeds inside from rain and snow.

When the weather becomes warm and dry, pinecones open. On a hot day, you might even hear the sound of cones popping open. The seeds inside may then fall to the ground. The wind may blow the seeds to places where they can grow into new pine trees. A seed has a better chance of taking root and growing when the weather is warm.

“Pine seeds are an important source of food for many animals,” says Monty Maldonado. He is a pinecone expert with the United States Forest Service. He says squirrels depend on pinecone seeds for most of their meals. They spend lots of time gathering and storing the cones. Maldonado says some animals eat only the seeds from a pinecone. But red squirrels and gray squirrels will eat the whole thing.

Small animals aren’t the only creatures that eat pine seeds. Maldonado says big grizzly bears (灰熊) and people eat them, too.

Seeds inside a pinecone are important for the growth of new trees and as food for animals. It is the pinecone’s job to protect them. So take note of the pinecones you see on the ground. They hold treasures inside.

45．According to the passage, when it is rainy, cones          .

A．are open   B．are usually shut       C．grow quickly    D．stop growing

46．According to Monty Maldonado,        .

A．not all squirrels eat the whole pinecone        

B．pine seeds are difficult to find for many animals

C．people in the forest are sometimes attacked by grizzly bears

D．most small animals depend on pinecone seeds for their meals

47．We can learn from the passage that on sunny days         .

A．seeds may fall out of the cones      

B．squirrels stay still in their nests      

C．it’s difficult for a seed to take root

D．the wind will put the pine trees in danger

48．In the last paragraph, the author points out that         .

A．more and more new trees need to be planted in future 

B．people should be responsible for protecting animals

C．people should be careful not to damage the pinecones  

D．squirrels now have few seeds to feed themselves

49．Which of the following is TRUE according to the passage?

A．The author learned why pinecones are not always open in the forest.  

B．The author gathered pinecones and observed them for a month.  

C．The author is fond of gathering and storing the cones. 

D．Pine trees are precious to animals and people.

One warm day when I was walking in my backyard, I saw a pinecone(松球) on the ground. I picked it up, and some seeds fell out of it. Those seeds would be a tasty treat for a squirrel (松鼠).

I realized that pinecones were not always open like this one. Sometimes cones were tightly closed. I decided to find out why.

I gathered pinecones from my backyard. I watched them for over a year. Here’s what I learned.

Pinecones open and close slowly as the weather changes. When it’s cold or wet, cones are tightly closed. This protects the seeds inside from rain and snow.

When the weather becomes warm and dry, pinecones open. On a hot day, you might even hear the sound of cones popping open. The seeds inside may then fall to the ground. The wind may blow the seeds to places where they can grow into new pine trees. A seed has a better chance of taking root and growing when the weather is warm.

“Pine seeds are an important source of food for many animals,” says Monty Maldonado. He is a pinecone expert with the United States Forest Service. He says squirrels depend on pinecone seeds for most of their meals. They spend lots of time gathering and storing the cones. Maldonado says some animals eat only the seeds from a pinecone. But red squirrels and gray squirrels will eat the whole thing.

Small animals aren’t the only creatures that eat pine seeds. Maldonado says big grizzly bears (灰熊) and people eat them, too.

Seeds inside a pinecone are important for the growth of new trees and as food for animals. It is the pinecone’s job to protect them. So take note of the pinecones you see on the ground. They hold treasures inside.

45．According to the passage, when it is rainy, cones          .

       A．are open   B．are usually shut       C．grow quickly    D．stop growing

46．According to Monty Maldonado,        .

       A．not all squirrels eat the whole pinecone        

       B．pine seeds are difficult to find for many animals

       C．people in the forest are sometimes attacked by grizzly bears

       D．most small animals depend on pinecone seeds for their meals

47．We can learn from the passage that on sunny days         .

       A．seeds may fall out of the cones      

       B．squirrels stay still in their nests      

       C．it’s difficult for a seed to take root

       D．the wind will put the pine trees in danger

48．In the last paragraph, the author points out that         .

       A．more and more new trees need to be planted in future 

       B．people should be responsible for protecting animals

       C．people should be careful not to damage the pinecones  

       D．squirrels now have few seeds to feed themselves

49．Which of the following is TRUE according to the passage?

       A．The author learned why pinecones are not always open in the forest.  

       B．The author gathered pinecones and observed them for a month.  

       C．The author is fond of gathering and storing the cones. 

       D．Pine trees are precious to animals and people.

Barbara and Barry Zucker – Pinchoff, both doctors from New York City, took their three daughters on a walking safari（旅行）last year in Tanzania. Barbara told about their experience in Kinbero, “It is the most remote（遥远的）place we have ever been to,” camping with a few other Americans, two Tanzanian guides, and several Hadza（哈扎人）who had time to sit and chat because they had just killed a giraffe.

About 400 members of the Eastern Hadza tribe（部落）live in Tanzania today, the only hunter-gatherers who remain in Africa. The Hadza hunt game, gather edible plants and honey, and move from place to place whenever the weather changers. Every two weeks or so, they move to a new campsite.

At the Pinchoffs’ campsite, three Hadza men stopped by to visit and ended up staying three days. One of the guides gave the men a cigarette. They took out the tobacco, put it in a pipe, and lit the pipe with fire they started.

It takes less than two hours for Hadza women to build a new camp. They make huts（茅屋）by bending branches into round structures about six feet high, and then covering them with long, golden grass. If the weather is very wet, the women may choose a dry cave to set up a camp. Some rock caves have been used over thousands of years and are decorated（装饰）with ancient rock paintings. Whether they sleep in huts, caves or in the open, the Hadza cover themselves only with thin cloths and depend on fire to keep them warm.

The Hadza refuse to be “settled” into villages or to have the life of farmers. By 1979, almost all of them had returned to their old ways. They Hadza may be the only tribe in Africa the has never paid taxes.

The passage mainly tells up         .

A. one of the author’s travel experiences

B. the life of the Hadza tribe in Tanzania

C. Barbara’s walking safari in Tanzania

D. the efforts of the Hadza to keep their old ways

What does the underlined word “game” ( in Paragraph 2 ) probably refer to?

A. Part of a match.                                           B. Edible wild animals.        

C. An area of work.                                                 D. A children’s activity.

What do we know about the life of the Hadza?

A. They change their campsites regularly.           B. They live mainly on farming.

C. They keep warm using leaves at night.            D. It takes them a long time to set up a camp.

Where do the Hadza live in wet weather?

A. On the farm.            B. In huts.             C. In caves.           D. In the open.

Barbara and Barry Zucker – Pinchoff, both doctors from New York City, took their three daughters on a walking safari（旅行）last year in Tanzania. Barbara told about their experience in Kinbero, “It is the most remote（遥远的）place we have ever been to,” camping with a few other Americans, two Tanzanian guides, and several Hadza（哈扎人）who had time to sit and chat because they had just killed a giraffe.
About 400 members of the Eastern Hadza tribe（部落）live in Tanzania today, the only hunter-gatherers who remain in Africa. The Hadza hunt game, gather edible plants and honey, and move from place to place whenever the weather changers. Every two weeks or so, they move to a new campsite.
At the Pinchoffs’ campsite, three Hadza men stopped by to visit and ended up staying three days. One of the guides gave the men a cigarette. They took out the tobacco, put it in a pipe, and lit the pipe with fire they started.
It takes less than two hours for Hadza women to build a new camp. They make huts（茅屋）by bending branches into round structures about six feet high, and then covering them with long, golden grass. If the weather is very wet, the women may choose a dry cave to set up a camp. Some rock caves have been used over thousands of years and are decorated（装饰）with ancient rock paintings. Whether they sleep in huts, caves or in the open, the Hadza cover themselves only with thin cloths and depend on fire to keep them warm.
The Hadza refuse to be “settled” into villages or to have the life of farmers. By 1979, almost all of them had returned to their old ways. They Hadza may be the only tribe in Africa the has never paid taxes.
【小题1】 The passage mainly tells up         .