According to the Guinness Book of World Recor...

According to the Guinness Book of World Records, a Sitka Spruce, growing on New Zealand’s southernmost island, is the loneliest and most distant tree on Earth. Not only is it the only tree on Campbell Island, but the nearest other tree can be found over 200 kilometers away.

Located (位于) about 700 km south of Bluff, Campbell Island is one of the harshest places in the world. With strong winds blowing almost all year round, less than 600 hours of sunshine and only 40 days per year without rain, it ‘ s not exactly a perfect place to live.

It is believed that this Sitka Spruce was planted by Lord Ranfurly, a former governor of New Zealand, sometime between 1901 and 1907. According to some sources, he realized that the environment was too bad, so he took the first step to cover it in forest. His idea was never going to work because of the terrible climate of the area.

Apart from being the loneliest tree on Earth, the Sitka Spruce of Campbell Island has a series of other particularities. First of all, its shape makes it look more like a huge cauliflower (花椰菜) than a tree. This is believed to have been caused by the repeated cutting every year, for decades. Luckily, no one has been cutting the tree down over the last six decades and it has grown to a height of over 10 meters.

Another interesting thing about the world’s loneliest tree is that, though it is over 100 years old, it has never produced cones (球果), which suggests the tree has remained in a permanently young state.

The Sitka Spruce of Campbell Island was recently in the news for helping researchers make sure that the Earth has entered an entirely new age, the Anthropocene (人类世).

Who knew a lonely tree growing 200 km away from its nearest cousins could be so interesting?

1.What makes the Sitka Spruce set a world record?

A. Its height.　　 B. Its old age.

C. Its special shape.　　 D. Its location.

2.What does the underlined word “harshest” in paragraph 2 probably mean?

A. Farthest.　　 B. Hardest.　　 C. Loneliest.　　 D. Hottest.

3.Why did Lord Ranfurly plant Sitka Spruces on the Campbell Island?

A. To improve this place.　　 B. To experiment with the tree.

C. In memory of his achievement.　　 D. To help with researchers’ study.

4.What affected the shape of the Sitka Spruce according to the text?

A. Strong winds.　　 B. Animals’ eating.

C. People’s cutting.　　 D. Poor soil.

高一英语阅读理解中等难度题查看答案及解析

Not a single book is allowed _______ out of the reading room according to the new rule.

A．to take                               B．taking

C．to be taken                            D．being taken

高一英语单项填空中等难度题查看答案及解析

1.According to the statistics, what is the world average of freshwater resource per person?

A. 6,122 cubic kilometers.

B. 241 cubic kilometers.

C. 3,642 cubic kilometers.

D. 244,973 cubic kilometers.

2.Which country or region has the most freshwater resource per year?

A. Guyana.            B. Brazil.            C. Iceland.            D. China.

3.Which country or region appears twice on the top 5 lists?

A. Bhutan.            B. Seychelles.        C. Suriname.        D. Canada.

高一英语阅读理解中等难度题查看答案及解析

Some of the planet’s most precious animals and plants are disappearing, according to the World Conservation Union (IUCN). The group, based in Switzerland, works with governments and experts to protect threatened species. On September 12, the IUCN released its Red List, a list of species at greatest risk of extinction.

The list includes 41,415 animals and plants. The IUCN says that habitat destruction, hunting and other causes threaten one in four mammals, one in eight birds and one in three amphibians(两栖动物).

Who is to blame?

Scientists believe that 99 percent of threatened species are at risk because of human activity. “We are losing animals and plants at a high rate,” says Julia Marton-LefEevre, director general of the IUCN. “We need to change our behavior.” Warmer oceans and over-fishing are changing sea life. This year for the first time corals(珊瑚) made their appearance on the list. The gharial, a crocodile living in India and Nepal, has lost almost 60 percent of its population in the last 10 years. It is a victim（受害者）of habitat destruction.

Still, the news is not all bad. Thanks to efforts made to protect it, the Mauritius echo parakeet, a bird once endangered, has seen an increase in its population. “This shows that protection methods can work,” says Marton-LefEevre. “That’s the message we want to send to young people.”

In China the new reserve（保护区）itself is part of green efforts that have seen more than 2,400 nature reserves of various kinds being set up, covering more than 15 percent of the nation's land area, official figures showed.

"The country's natural resources(资源) have benefited from conservation," said Lei Guangchun, director of the nature reserve department of Beijing Forestry University. "It is a big increase nowadays compared with other countries." Lei said.

The total areas of China’s natural reserves have covered 1.38 million km2, which accounts for 15.4% of China’s area, higher than both the world average（平均水平） of 11% and the rate in most developed countries.

Li Zhong, an official in charge of the nature reserves office with the State Forestry Administration, thought it was important to increase investment（投资） in such reserves at all levels.

1.What do we know about the IUCN?

A. A union for listing animals and plants on the earth

B. A group of volunteers who are interested in wildlife

C. An organization concerning the protection of rare species' survival

D. A government made up officials, scientists and experts

2. What can be concluded from the passage?

A. All the protection methods can’t work.

B. The IUCN does most of the protection.

C. The efforts China makes has paid off.

D. Enough is done in wildlife protection.

3.Which of the following is not the cause of the disappearance of the animals?

A. Bad weather     B. Over-hunting    C. Warmer oceans    D. Habitat destruction

4.Which of the sentence is NOT true?

A. China has been paying great attention to protecting the natural resources.

B. China has set up a lot of natural reserves.

C. The natural reserves in China cover more than 15 percent of the nation's land area.

D. The rate of China's natural reserves is lower than the average of the world.

高一英语阅读理解简单题查看答案及解析

More than two thirds of the world’s polar bears will be wiped out by 2050, according to a shocking new study. By then, scientists say, global warming will have melted 42 percent of the Arctic sea ice. By 2100, only a very few of these important creatures will be left.

The report has been produced by the US Geological Survey. The scientists have publicized their findings in the hope of influencing US Interior Secretary Dirk Kempthorne, who has been asked to put polar bears on the US endangered species list.

Polar bears depend on floating sea ice as a platform for hunting seals, which are their main food. Without enough ice, polar bears would be forced to go onto the land, where they are poorly skilled hunters, and would be unlikely to adapt to the life on the land in time. Experts say few little bears would survive and the stress could make many females unable to get pregnant.

The team of American and Canadian scientists spent six months studying bears, on the ground, from spotter planes and in the lab，using computer models. Some team members fear the result is even worse for the bears than what their report says. They say the Arctic is warming faster than anywhere in the world and much faster than their computer had been forecasting. Satellite observations have showed that the ice has decreased to an all­time low.

However, not everyone in the scientific community believes that global warming is happening on such an alarming scale. Another investigation has found that polar bears are still being hunted by wealthy “sportsmen” who want their skins and heads. At least ten international companies offer bear­hunting trips.

1.What do we know about Dirk Kempthorne according to the passage?

A. He is an animal scientist.

B. He is a protector of animals working for the US government.

C. He was asked to put polar bears on the US endangered species list.

D. He offered to put polar bears on the endangered species list.

2.Why will polar bears die out if there is not enough sea ice?

A. Because polar bears can’t catch enough food without ice.

B. Because polar bears eat ice when they feel thirsty.

C. Because polar bears will be easily found by hunters without ice.

D. Because most female bears are used to giving birth under ice.

3.After a six­month study, some scientists fear that________.

A. there is something wrong with their computers

B. polar bears will disappear even faster than they ever expected

C. their computer models are not as accurate as they expected

D. global warming will destroy everything in the Arctic

高一英语阅读理解简单题查看答案及解析

More than two thirds of the world's polar bears will be wiped out by 2050，according to a shocking new study. By then，scientists say，global warming will have melted 42 percent of the Arctic sea ice. By 2100，only a very few of these important creatures will be left.

The report has been produced by the US Geological Survey. The scientists have publicized their findings in the hope of influencing US Interior Secretary Dirk Kempthorne，who has been asked to put polar bears on the US endangered species list.

Polar bears depend on floating sea ice as a platform for hunting seals，which are their main food. Without enough ice，polar bears would be forced to go onto the land，where they are poorly skilled hunters，and would be unlikely to adapt to the life on the land in time. Experts say few little bears would survive and the stress could make many females unable to get pregnant.

The team of American and Canadian scientists spent six months studying bears，on the ground，from spotter planes and in the lab，using computer models.

Some team members fear the result is even worse for the bears than what their report says. They say the Arctic is warming faster than anywhere in the world and much faster than their computer had been forecasting. Satellite observations have showed that the ice has decreased to an all－time low.

However，not everyone in the scientific community believes that global warming is happening on such an alarming scale. Another investigation has found that polar bears are still being hunted by wealthy “sportsmen” who want their skins and heads. At least ten international companies offer bear－hunting trips.

1.What do we know about Dirk Kempthorne according to the passage?

A．He is an animal scientist.

B．He is a protector of animals working for the US government.

C．He was asked to put polar bears on the US endangered species list.

D．He offered to put polar bears on the endangered species list.

2.Why will polar bears die out if there is not enough sea ice?

A．Because polar bears can't catch enough food without ice.

B．Because polar bears eat ice when they feel thirsty.

C．Because polar bears will be easily found by hunters without ice.

D．Because most female bears are used to giving birth under ice.

3.After a six－month study，some scientists fear that ________．

A．there is something wrong with their computers

B．polar bears will disappear even faster than they ever expected

C．their computer models are not as accurate as they expected

D．global warming will destroy everything in the Arctic

4.What does the writer want to tell us in the last paragraph?

A．The forecast about the future of polar bears is not correct.

B．Global warming won't have any effect on hunting trips in the Arctic.

C．Polar bears are an endangered species as a result of bear－hunting.

D．People don't pay enough attention to the protection of endangered species.

高一英语阅读理解中等难度题查看答案及解析

（题文）When will the woman return the book according to the man?

A. Next Friday.　　 B. Next Saturday .　　 C. Next Tuesday.

高一英语短对话简单题查看答案及解析

Sitting on the sofa in her family’s Michigan home in 2009, looking through the Guinness World Records, 10 year-old Winter Vinecki was surprised to find that the record for the youngest person to complete a marathon on every continent was held by a 27-year-old man. “I can beat that,” she declared. “For Dad. ” And she had every reason to believe she could.

A natural athlete since the age of 5, Winter had been running together with her mom and uncle, both athletes, and competing in races across the country. Soon, her name was appearing in national competitions. Trophies (奖牌) lined her walls.

But in 2008, at the age of 9, Winter stopped racing for medals. In May of that year, her father found out he had caught a rare cancer. To raise awareness and funds to fight the disease. Winter started an organization called I earn Winter. Just 10 months after his diagnosis, her father passed away.

Over the next three years, Winter came first in 20 of the 37 races in which she competed, including four Junior Olympics Cross Country Championships. Along the way, she raised over $ 400,000 to help find a cure for cancer.

Now 14, Winter is working on her world record to win her cause a place in the Guinness World Records. She recently completed her first marathon in Eugene, Oregon, a race normally limited to runners over 16, finishing in an amazing 3:45:04. “I’m used to racing with adults, and I think it’s kind of fun to race past them,” said Winter before the race.

With six continents to go, Winter has just begun a journey that will take her two years. “Every time I step to a starting line,” Winter says, “I have one thought in mind: keeping my dad’s spirit alive.”

1.Winter tries to break the Guinness World Record as ________.

A. the youngest marathon runner

B. the athlete with the most medals

C. the marathon runner with the most medals

D. the youngest marathon runner on all continents

2.What caused Winter to start the organization “Team Winter”？

A. Her father’s disease.　　 B. Her father’s death.

C. Her uncle’s advice.　　 D. Her mother’s disease.

3.When did Winter finish her first marathon race?

A. At age 9.　　 B. At age 10.

C. At age 14.　　 D. At age 16.

4.What does the word “them” in paragraph 5 refer to?

A. World records.　　 B. Adult runners.

C. Young runners.　　 D. Marathon races.

高一英语阅读理解中等难度题查看答案及解析

According to the Associated Press (AP), a Chinese scientist claims he successfully created the world’s first genetically-edited babies.

Chinese researcher He Jiankui, a research professor at China’s Southern University of Science and Technology in Shenzhen, said he had edited DNA of twin girls born a few weeks ago. ①

He’s claims were immediately criticized by some scientists as unsafe and unethical. This kind of gene editing is forbidden in the United States and many other countries. ②Such changes to a person’s DNA can pass to future generations and risk harming other genes.

In interviews, He Jiankui defended his work. He said he had performed the gene editing to help protect the babies from future infection of HIV, the virus responsible for the disease AIDS. He said the process had “worked safely” and the twin girls were “as healthy as any other babies.” He told the AP he felt a strong responsibility “not just to make a first, but also to make an example” for future research. “Society will decide what to do next,” he said.

When He’s claims became public, the university made a statement saying his work had “seriously went against academic ethics and standards.” University officials said they had no knowledge of his research and had looked into the case. ③

China’s National Health Commission was “highly concerned” about the claims and ordered local health officials “to immediately look into” He’s activity. “We have to be responsible for the people’s health and will act on this according to the law,” the commission said.

Scientists discovered in recent years a new way to edit genes that make up a person’s DNA throughout the body. The tool, called CRISPR-cas9, makes it possible to change DNA to supply a needed gene or take one away that is causing problems. So far the tool has only been used on adults to treat deadly diseases, and the changes only affected that person.

④Kiran Musunuru, a scientist from University of Pennsylvania, told the AP that if such an experiment had been carried out on human beings, it could not be “morally or ethically reasonable.” Julian Savulescu, a medical ethics expert at Britain’s University of Oxford, agreed. “If true, this experiment may cause disasters,” he told Reuters.

However, one well-known geneticist, Harvard University’s George Church, defended the attempt to edit genes to prevent infections of HIV. He told the AP that since HIV is “a major and growing public health threat” he finds such experiments “valuable.”

1.What can we learn from this passage?

A. All scientists consider He’s experiment unsafe and unethical.

B. The university He works in supports his experiment.

C. Many countries don’t allow editing babies genetically.

D. China’s National Health Commission thinks highly of He’s experiment.

2.The following sentence “However, many scientists believe such experiment is dangerous.” can be placed in __________.

A. ①　　 B. ②

C. ③　　 D. ④

3.What’s the author’s attitude towards He Jiankui’s research?

A. Supportive.　　 B. Uninterested.

C. Doubtful.　　 D. Neutral.

4.What might be the best title of this passage?

A. Chinese Scientist Claims First Gene Edited Babies

B. Chinese Scientist Finds A New Cure For AIDS

C. Gene Editing Still Has A Long Way To Go

D. China Takes The Lead In Gene Editing

高一英语阅读理解困难题查看答案及解析

With the rising price，I have to _______ quite a lot of things ---clothes，records and so on.

A. cut in　　　　 B. cut down

C.cut off　　 　 D. cut up

高一英语单项填空简单题查看答案及解析