The giant panda loves bamboo. An adult panda ...

The giant panda loves bamboo. An adult panda requires 12.5 kilograms of bamboo, which it 1.(hungry) pulls out with its powerful paws, to satisfy its daily needs. Wild pandas live only in the high bamboo forests of Central China. These mountain forests are cool and wet--just as pandas like it. In the summer, they may climb as high as 4000 meters to help themselves to bamboo 2.(grow) at higher altitudes. Frequently, pandas 3.(see) eating in a relaxed sitting position, with their back legs stretched out before them. 4. they may appear inactive, they are in fact skilled tree-climbers and efficient swimmers.

Giant pandas are unsociable. They have a highly developed sense of smell that males use 5.(avoid) each other and to find females for mating in the spring. After a five-month pregnancy, a female gives birth 6. a cub. The blind baby pandas weigh only 142 grams and cannot crawl(爬行) 7. they reach three months of age.8. are born white, and develop their much loved coloring later.

There are only about 1000 giant pandas left in 9. wild, with perhaps another 100 in zoos. Because they are so rare, much of 10. we know about pandas comes from studying these zoo animals.

高二英语短文填空中等难度题查看答案及解析

The discovery of an ancient giant panda skull has confirmed its bamboo diet dates back more than 2 million years and may have played a key part in its survival.

A　 Chinese-US research team reports its results today following studies on a fossil skull found in south China’s Cuangxi Zhuang Autonomous Region in 2001.

The six fossils unearthed in Jinyin Cave are dated between 2.4 and 2 million years ago, according to the report in Proceedings of the National Academy of Sciences, an influential US journal.

Jin Changzhu, of the chinese Academy of Sciences (CAS) and lead author of the paper, said the smaller fossil skull indicates the giant pandas were about a third smaller than today’s pandas.

Researchers knew the panda reached its maximum size about 500,000 years ago, when it peaked ,and then gradually became smaller.

Jin, a paleontologist (古生物学者) at the Institute of Vertebrate paleontology and Paleoanthropology (古人类学) attached to the CAS, said the size variation was a basic rule of evolution.

“A species tends to grow bigger when it reaches the peak of its population , but becomes smaller when numbers decline,” he said.

The dental remains of the skull, which is the oldest giant panda skull ever found, are similar to today’s pandas, indicating the type of teeth that could munch (津津有味地嚼)mountains of bamboo. A panda can eat up to 40kg of bamboo per day.

Paleoanthropologist Russell Ciochon, the US co-author at the University of lowa, said the panda’s focus on bamboo could have helped it survive all these years.

“Once an animal begins to rely on a common and stable food source, such as bamboo, it tends to evolve a larger body size,” he said. “As individuals of the evolving species grow bigger, they have a better chance not to be eaten by predators (肉食动物) due to their larger body size.”

1.According to the research of the CAS , there were most pandas in the world 　　 .

A. 2 million years ago

B. between 2.4 and 2 million years ago

C. 500,000 years ago

D. Nowadays

2.The underlined word “variation” in para 6 means 　　　 .

A. fall　　　　　　　 B. change　　　　 C. increase　　　　 D. decrease

3.From the passage, we can learn 　　　 .

A. pandas began to eat bamboo 2 million years ago

B. a species tends to grow smaller when numbers decline

C. the giant pandas were about a third the size of today’s pandas

D. pandas’ bamboo has played an important role in its development

高二英语阅读理解中等难度题查看答案及解析

阅读下面短文，在空白处填入 1个适当的单词或括号内单词的正确形式。

The giant panda 1. (love) by people throughout the world. Chinese scientists 2. (recent) had a chance to study a wild female panda with a newborn baby. She was a very 3.(care) mother. For 25days, she never left her baby, not even to find something 4. (eat)! She would not let any other pandas come near. She licked the baby constantly to keep it clean. Any smell might attract natural 5.(enemy) that would try to eat the little comforting panda. The mother held the baby in her front paws much the way a human does. 6. it cried, she rocked it back and forth and gave it little comforting pats. The mother continued to care for the young panda 7. more than two years. By that time, the panda no longer needed 8.(it) mother for food. However, it stayed with her and leaned about the ways of the forest. Then, after two and a half years, the mother 9. (drive) the young panda away. It was time for her to have a new baby, 10. it was also time for the young panda to be independent.

高二英语语法填空中等难度题查看答案及解析

阅读下面材料， 在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

The giant panda 1.(love) by people throughout the world. Chinese scientists　 2. (recent) had a chance to study a wild female panda with a newborn baby. She was a very3.(care)mother. For 25days,she never left her baby, not even to find something 4.(eat)!She would not let any other pandas come near. She licked the baby constantly to keep it clean. Any smell might attract natural 5.(enemy)that would try to eat the little comforting pats. The mother held the baby in her front paws much the way a human does. 6. it cried, she rocked it back and forth and gave it little comforting pats, The mother continued to care for the young panda7. more than two years. By that time, the panda no longer needed8.　 (it)mother for food. However, it stayed with her and leaned about the ways of the forest. Then, after two and a half years, the mother9.　 (drive) the young panda away. It was time for her to have a new baby, 10.it was also time for the young panda to be independent.

高二英语语法填空中等难度题查看答案及解析

Sichuan is home to giant pandas, ________ are China’s national treasure loved by people all over the world.

A. whose            B. that            C. where            D. which

高二英语单项填空中等难度题查看答案及解析

Pets provide an unconditional love that requires very little on the part of the human.

Animals are so special to those of us who love them. We miss them when they are no longer with us. We grieve (哀悼) for them in ways which are just the same as grieving for a human loved one.

Whether the end comes through old age, illness, or sudden death, the death of a pet can cause enormous feelings of sorrow, guilt, and loneliness for children and adults alike, as the animal was considered a family member, a child's favoured playmate, or an older person's loyal and faithful companion.

Some people don't want a pet because they do die! It's understandable to be unwilling to expose yourself to death but, at the same time, we become immeasurably more human because our animals die. When we live with animals we're more in step with the rhythms of the planet from day to night and from season to season because our companions make us more aware of the changes around us. Our companion animals teach us about the simple gifts of a beautiful day, a good meal and a gentle touch.

The death of a pet can make us struggle with our belief structure－a natural part of the grieving period. Whether grieving an animal or human, we question our beliefs and many people find their belief structure becomes stronger when they ask themselves hard questions. Others find a new way of acceptance.

And we learn from our animals. Animals aren't afraid to die; they show us that the end of life can be faced without fear. They can teach us to accept death as an opening for love and wonder.

Allow yourself to grieve in whatever way is appropriate for you. The loss of a pet is real grief and causes us to travel through the stages of grief－denial, anger, depression, guilt, and acceptance. These stages must be lived through for the mourning to allow full healing.

1. According to the passage, the reason why some people don’t want a pet may be that ________.

A. animals may change our belief structure

B. animals are so special for those who love them

C. pets can never escape from death which makes people sad

D. pets only provide people with love but never ask for return

2.The underlined sentence in paragraph 4 probably means ________.

A. the animals’ death is unacceptable for their owners

B. the animals’ death may arouse their true feelings inside

C. the animals’ death may expose people to the changes in life

D. the animals’ death is more understandable than human’s death

3.According to the passage, we can infer that ________.

A. pets can give us some gifts when they have a good meal

B. pets are so selfless and brave that all the people love them

C. people can never accept the death of pets or the one they love

D. people may go through several stages before they can accept the death of a pet

4.What’s the attitude of the author towards grieving a pet?

A. Neutral.         B. Negative.            C. Positive.            D. Critical.

高二英语阅读理解中等难度题查看答案及解析

_______ ninety-nine percent of the panda’s diet is bamboo, it also eats corn, apples and sweet potatoes.

A. If            B. While           C. Because       D. Since

高二英语单项填空中等难度题查看答案及解析

--The Chinese government is trying to protect the giant panda.

--I know. By 2020, they _________ about 69,500 square miles of land to the country’s nature reserve system.

A. add　　 　　　　 　 B. are adding

C. will add　　　　 D. will have added

高二英语单项填空中等难度题查看答案及解析

When most people think of giant pandas, the pictures of the cute, black-and-white bears from China that eat bamboo will immediately jump into their mind. Scientists from Mississippi State University, however, are interested in what they leave behind: their poop(排泄物). At a recent meeting in Denver, Professor Brown at the university presented her research showing how panda poop could inspire a new way to obtain energy from plants, which are a renewable energy source. Usually, plants can be called biomass(有机燃料) when they are used as an energy source.

Burning biomass is one way to capture its energy, but Brown hopes panda poop can teach scientists something about breaking down biomass. Pandas—or at least the bacteria in their stomachs—are very good at getting energy out of bamboo. Unlike cows, which use 4 stomachs to digest large amounts of grass, a panda has only one stomach. Bamboo comes in, and poop goes out.

Every day for 14 months, Brown and her team on this project, counted the bacteria in the poop of the two pandas, YaYa and LeLe living at the Memphis Zoo. Her studies turned up 12 species of bacteria that break down biomass, including one that had never been found in pandas. Brown says that because the poop contains bacteria that break down biomass, it could also be used to break down other types of biomass.

Now the scientists hope to identify the chemicals that help with the process of breaking down biomass and then figure out how the bacteria work. If those chemicals can be made in the lab, they could be used to turn biomass—like grass or other plants—into fuel.

Brown says she doesn’t mind handling panda poop. “It’s probably the most pleasant material to work with,” she says, “My colleagues and I have been working with other poop for a long time, and we can assure you it has a fairly pleasant smell associated with it.”

1.The importance of studying panda poop is _______.

A. to create a renewable energy from plants

B. to explore a new way to get energy from plants

C. to learn a lesson of energy from panda poop

D. to figure out how the bacteria work for us mankind

2.The process of the panda poop project can be described as ______.

A. a, b, d, c           B. a, d, c, b           C. b, a, d, c           D. b, d, a, c

3.What does the author mainly want to express in the 2nd paragraph?

A. Pandas don’t digest bamboo the same way as cows.

B. Pandas are capable of getting energy using stomachs.

C. Pandas can get energy from bamboo more efficiently.

D. Scientists have learnt something new from panda poop.

4.What does Professor Brown think of working with panda poop?

A. Sick             B. Challenging          C. Inspiring            D. Enjoyable

高二英语阅读理解困难题查看答案及解析

While traveling in Sichuan，you can’t miss________people call “The National Treasure”—Giant Panda.

A．that    B．it     C．what    D．which

高二英语单项填空困难题查看答案及解析