高中英语试题

阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

By the end of the century, if not sooner, the world's oceans will be bluer and greener thanks to a warming climate, according to a new study.

At the heart of the phenomenon lie tiny marine microorganisms (海洋微生物) called phytoplankton. Because of the way light reflects off the organisms, these phytoplankton create colourful patterns at the ocean surface. Ocean colour varies from green to blue, depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas, while reducing it in other spots, leading to changes in the ocean's appearance.

Phytoplankton live at the ocean surface, where they pull carbon dioxide (二氧化碳) into the ocean while giving off oxygen. When these organisms die, they bury carbon in the deep ocean, an important process that helps to regulate the global climate. But phytoplankton are vulnerableto the ocean's warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth, since they need not only sunlight and carbon dioxide to grow, but also nutrients.

Stephanie Dutkiewicz, a scientist in MIT's Center for Global Change Science, built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 3℃, it found that multiple changes to the colour of the oceans would occur. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters, such as those of the Arctic, a warming will make conditions riper for phytoplankton, and these areas will turn greener. "Not only are the quantities of phytoplankton in the ocean changing." she said, "but the type of phytoplankton is changing."

（1）What are the first two paragraphs mainly about?

A．	The various patterns at the ocean surface.
B．	The cause of the changes in ocean colour.
C．	The way light reflects off marine organisms.
D．	The efforts to fuel the growth of phytoplankton.

（2）What does the underlined word "vulnerable" in Paragraph 3 probably mean?

A．	Sensitive
B．	Beneficial
C．	Significant
D．	Unnoticeable

（3）What can we learn from the passage?

A．	Phytoplankton play a declining role in the marine ecosystem.
B．	Dutkiewicz's model aims to project phytoplankton changes
C．	Phytoplankton have been used to control global climate
D．	Oceans with more phytoplankton may appear greener.

（4）What is the main purpose of the passage?

A．	To assess the consequences of ocean colour changes
B．	To analyse the composition of the ocean food chain
C．	To explain the effects of climate change on oceans
D．	To introduce a new method to study phytoplankton

阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

The problem of robocalls has gotten so bad that many people now refuse to pick up calls from numbers they don't know. By next year, half of the calls we receive will be scams (欺诈).We are finally waking up to the severity of the problem by supporting and developing a group of tools, apps and approaches intended to prevent scammers from getting through. Unfortunately, it's too little, too late. By the time these "solutions" (解决方案) become widely available, scammers will have moved onto cleverer means. In the near future, it's not just going to be the number you see on your screen that will be in doubt. Soon you will also question whether the voice you're hearing is actually real.

That's because there are a number of powerful voice manipulation (处理) and automation technologies that are about to become widely available for anyone to use .At this year's I/O Conference ,a company showed a new voice technology able to produce such a convincing human-sounding voice that it was able to speak to a receptionist and book a reservation without detection.

These developments are likely to make our current problems with robocalls much worse. The reason that robocalls are a headache has less to do with amount than precision A decade of data breaches (数据侵入) of personal information has led to a situation where scammers can easily learn your mother's name, and far more. Armed with this knowledge, they're able to carry out individually targeted campaigns to cheat people. This means, for example, that a scammer could call you from what looks to be a familiar number and talk to you using a voice that sounds exactly like your bank teller's, ricking you into "confirming" your address, mother's name, and card number. Scammers follow money, so companies will be the worst hit. A lot of business is still done over the phone, and much of it is based on trust and existing relationships. Voice manipulation technologies may weaken that gradually.

We need to deal with the insecure nature of our telecom networks. Phone carriers and consumers need to work together to find ways of determining and communicating what is real. That might mean either developing a uniform way to mark videos and images, showing when and who they were made by, or abandoning phone calls altogether and moving towards data-based communications-using apps like Face Time or WhatsApp, which can be tied to your identity.

Credibility is hard to earn but easy to lose, and the problem is only going to harder from here on out.

（1）How does the author feel about the solutions to problem of robocalls?

A．	Panicked
B．	Confused
C．	Embarrassed
D．	Disappointed

（2）taking advantage of the new technologies, scammer can ________.

A．	aim at victims precisely
B．	damage databases easily
C．	start campaigns rapidly
D．	spread information widely

（3）What does the passage imply?

A．	Honesty is the best policy.
B．	Technologies can be double-edited.
C．	There are more solutions than problems.
D．	Credibility holds the key to development.

（4）Which of the following would be the best title for the passage?

A．	Where the Problem of Robocalls Is Rooted
B．	Who Is to Blame for the Problem of Robocalls
C．	Why Robocalls Are About to Get More Dangerous
D．	How Robocalls Are Affecting the World of Technology

阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

Alice Moore is a teenager entrepreneur (创业者), who in May 2015 set up her business AilieCandy. By the time she was 13, her company was worth millions of dollars with the invention of a super-sweet treat that could save kids' teeth, instead of destroying them.

It all began when Moore visited a bank with her dad. On the outing, she was offered a candy bar. However, her dad reminded her that sugary treats were bad for her teeth. But Moore was sick of missing out on candies. So she desired to get round the warning, "Why can't I make a healthy candy that's good for my teeth so that my parents can't say no to it?" With that in mind, Moore asked her dad if she could start her own candy company. He recommended that she do some research and talk to dentists about what a healthier candy would contain.

With her dad's permission, she spent the next two years researching online and conducting trials to get a recipe that was both tasty and tooth-friendly. She also approached dentists to learn more about teeth cleaning. Consequently, she succeeded in making a kind of candy only using natural sweeteners, which can reduce oral bacteria.

Moore then used her savings to get her business of the ground. Afterwards, she and her father secured their first business meeting with a supermarket owner, who finally agreed to sell Moore's product-Cancandy.

As CanCandy's success grows, so does Moore's credibility as a young entrepreneur. Moore is enthusiastic about the candy she created, and she's also positive about what the future might bring. She hopes that every kid can have a clean mouth and a broad smile.

Meanwhile, with her parents' help, Moore is generally able to live a normal teenage life. Although she founded her company early on in life, she wasn't driven primarily by profit. Moore wants to use her unique talent to help others find their smiles. She donates 10% of AilicCandy's profits to Big Smiles. With her talent and determination, it appears that the sky could be the limit for Alice Moore.

（1）How did Moore react to her dad's warning?

A．	She argued with him.
B．	She tried to find a way out.
C．	She paid no attention.
D．	She chose to consult dentists.

（2）What is special about CanCandy?

A．	It is beneficial to dental health.
B．	It is free of sweeteners.
C．	It is sweeter than other candies.
D．	It is produced to a dentists' recipe.

（3）What does Moore expect from her business?

A．	To earn more money.
B．	To help others find smiles.
C．	To make herself stand out.
D．	To beat other candy companies.

（4）What can we learn from Alice Moore's story?

A．	Fame is a great thirst of the young.
B．	A youth is to be regarded with respect.
C．	Positive thinking and action result in success.
D．	Success means getting personal desires satisfied.

阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

Want to explore new cultures, meet new people and do something worthwhile at the same time? You can do all the three with Global Development Association (GDA).Whatever stage of life you're at, wherever you go and whatever project you do in GDA, you'll create positive changes in a poor and remote community (社区).

We work with volunteers of all ages and backgrounds. Most of our volunteers are aged 17-24. Now we need volunteer managers aged 25-75.They are extremely important in the safe and effective running of our programmes. We have such roles as project managers, mountain leaders, and communication officers.

Depending on which role you choose, you could help to increase a community's access to safe drinking water, or help to protect valuable local cultures. You might also design an adventure challenge to train young volunteers.

Not only will you help our young volunteers to develop personally, you'll also learn new skills and increase your cultural awareness. You may have chances to meet new people who'll become your lifelong friends.

This summer we have both 4-week and 7-week programmes:

Country	Schedule
	4-week programmes	7-week programmes
Algeria	5 Jul.- 1Aug.	20Jun. -7Aug.
Egypt	24 Jul-20 Aug.	19Jun.-6 Aug.
Kenya	20 Jul.-16Aug.	18 Jun.-5 Aug.
South Africa	2Aug.-29 Aug.	15 Jun.-2Aug.

GDA ensures that volunteers work with community members and local project partners where our help is needed. All our projects aim to promote the development of poor and remote communities.

There is no other chance like a GDA programme. Join us as a volunteer manager to develop your own skills while bringing benefits to the communities.

Find out more about joining a GDA programme:

Website: www.glodeve.org

Email: [e-mail]

（1）What is the main responsibility of volunteer managers?

A．	To seek local partners
B．	To take in young volunteers
C．	To carry out programmes
D．	To foster cultural awareness

（2）The programme beginning in August will operate in ________.

A．	Egypt
B．	Algeria
C．	Kenya
D．	South Afria

（3）The shared goal of GDA's projects to ________.

A．	explore new cultures
B．	protect the environment
C．	gain corporate benefit
D．	help communities in need

阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项。

Regardless of the weather or the distance, Paul Wilson will make sure low-income students in his neighbourhood arrive at their college classes on time.

A retired engineer, 76-year-old Wilson has been 1 free rides to college students for the past eight years. Since he first started 2 his car to the young people. Wilson has 3 am astonishing 64, 000 miles, and has had countless pleasant and often humorous 4 with the students he transports to and from school. The students who he's 5 have gone on to become physicians, teachers and engineers, but what they've also got out of their time in school is finding a role model and a friend in Wilson. Some students 6 call him "Grandpa".

Tina Stern 7 rides from Wilson for all her four years in college, and the trips meant much more to her than just free 8 . "It's not just a ride；you're not just sitting there in 9 silence or with your headphones on." Stern said. "He asks you questions and actually 10 the answers, so the next time you ride with him, he'll 11 those things."

Wilson first worked as a driver through a student-support programme of the non-profit organisation. On Point for College. Although the 12 asks the members only to drive students to and from their classes, Wilson often goes 13 to ensure the welfare and safety of the students. If they have problems with registration.

Wilson is there to 14 them. If they run out of certain daily necessities. Wilson will drive to the nearest store and purchase what's needed. If a student gets hungry on the long drives to and from school, Wilson never 15 to buy them a meal.

For many students, Wilson's help is not only appreciated, it's also entirely 16 for them to be able to complete their college education. Some students don't have a reliable car, while others have to 17 vehicles with parents who work six days a week. For them, riding with Wilson has 18 them to complete their education-but according to Wilson, he benefits just as much from the 19 . "I just love driving and I love these kids, "Wilson said. "It's such a(n) 20 to be a part of these kids' lives, even just for a few hours, getting to know them and hearing their stories."

1.

A．

linking

B．

sending

C．

offering

D．

distributing

2.

A．

donating

B．

lending

C．

delivering

D．

volunteering

3.

A．

paved

B．

covered

C．

measured

D．

wandered

4.

A．

arguments

B．

interviews

C．

negotiations

D．

conversations

5.

A．

met

B．

driven

C．

addressed

D．

greeted

6.

A．

even

B．

ever

C．

once

D．

already

7.

A．

earned

B．

received

C．

assessed

D．

demanded

8.

A．

transportation

B．

style

C．

time

D．

communication

9.

A．

forced

B．

awkward

C．

ridiculous

D．

suspicious

10.

A．

selects

B．

recites

C．

guesses

D．

remembers

11.

A．

act on

B．

settle on

C．

check on

D．

agree on

12.

A．

club

B．

league

C．

college

D．

programme

13.

A．

far

B．

around

C．

beyond

D．

forwards

14.

A．

assist

B．

watch

C．

urge

D．

warm

15.

A．

expects

B．

attempts

C．

manages

D．

hesitates

16.

A．

extra

B．

unusual

C．

necessary

D．

adequate

17.

A．

share

B．

fuel

C．

repair

D．

exchange

18.

A．

required

B．

allowed

C．

reminded

D．

convinced

19.

A．

experience

B．

arrangement

C．

appreciation

D．

employment

20.

A．

effort

B．

ambition

C．

privilege

D．

convenience

阅读下列短文，根据短文内容填空，在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Does the name of the college you attend really matter? Research on the question ________ (suggest) that, for most students, it doesn't. What students do at college seems to matter much more than ________ they go. The students benefitting most from college are those ________ are totally engaged (参与) in academic life. taking full advantage of the college's chances and resources (资源). Students should have a proper attitude towards college before thinking about which college to attend, and it's never too early to make necessary preparations for a healthy and ________ (meaning) college experience.

阅读下列短文，根据短文内容填空，在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Earth Day, ________ (mark)on 22 April, is an annual event aiming to raise public awareness about environmental protection. First celebrated ________ 1970, the Day now includes events in more than 190 countries and regions (地区). No matter what you like to do, there is a way to get involved in various ________ (activity) on Earth Day. You can plant a tree, make a meal with locally grown vegetables, or save power-the possibilities are endless.

阅读下列短文，根据短文内容填空，在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

On the first day of my first grade, I stood by the door with butterflies in my stomach. I ________ (voice) my biggest concern to my mother. "How will I make friends?" She handed me advice. "Be yourself." For the past 20 years. I have lived by these words. Soon I will graduate and become part of the real world. Nervously ________ (face) challenges. I know I will whisper to ________ (I) the two simple words "Be yourself".

请阅读下面文字，并按照要求用英语写一篇150词左右的文章。

Li Jiang: Have you heard this? A group of exchange students from the UK are visiting our school next month.

Su Hua: Yes, I have. Some are already recommending the traditional Chinese dress for the welcome ceremony.

Li Jiang: But it seems people have different opinions.

Su Hua: What do you think?

Li Jiang: I think it's a good idea. It's an opportunity to make the Chinese culture better known to international students.

Su Hua: I agree. But we don't have to dress that way. That's not our daily style. Besides, it's not very convenient.

Li Jiang: You see. It's the Chinese culture that the British friends are coming for. Just the right occasion.

Su Hua: I prefer the school uniform. It's nice. It's also a better display of our school culture.

写作内容：①用约30个词概括上述信息的主要内容；

②在上述场合，你是否倾向于穿中国传统服装?请说明理由（不少于两点）。

写作要求：①写作过程中不能直接引用原文语句；

②作文中不能出现真实姓名和学校名称；

③不必写标题。

请认真阅读下面短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。

The Cost of Thinking

Despite their many differences, all human beings share several defining characteristics, such as large brains and the ability to walk upright on two legs.

The first unique human characteristic is that humans have extraordinarily large brains compared with other animals. It seems obvious that evolution should select for larger brains. Mammals (哺乳动物) weighing sixty kilograms have an average brain size of 200 cm ². Modern man has a brain averaging 1200-1400 cm ². We are so fond of our high intelligence that we assume that when it comes to brain power, more must be better. Unfortunately, that is not the case.

The fact is that a huge brain is a huge drain-consumption of energy-on the body. I's not easy to carry around, especially when boxed inside a massive skull (倾骨). It's even harder to provides energy. In modern man, the brain accounts for about 2-3%of total body weight but it consumes 25% of the body's energy when the body is at rest. By comparison, the brains of apes (类人猿) require only 8%of rest-time energy. Early humans pad for their large brains in two ways. Firstly, they spent more time in search food. Secondly, their muscles grew smaller and weaker. It's hardly an obvious conclusion that this is a good way to survive. A chimpanzee (黑猩猩) can't win an argument with a modern man, but it can tear the man apart like a rag doll.

Another unique human characteristic is that we walk upright. Standing up, it's easier to find food or enemies. In addition, their arms that are unnecessary for moving around are freed for other purposes, like throwing stones or signaling. As a result, humans can perform very complex tasks with their hands.

Yet walking upright has its disadvantage. The bone structure of our ancestors developed for millions of years to support a creature that walked on all fours and has a relatively small head. Adjusting to an upright position was quite a challenge, especially when the bones had to support an extra-large skull. Humankind paid for its broad vision and skillful hands backaches and painful necks.

We assume that a large brain makes huge advantages. It seems obvious that these have made humankind the most powerful animal on earth. But humans enjoyed all of these advantages for a full 2 million years during which they remained weak and marginal creature. Thus humans who lived a million years ago, despite their big brains and sharp stone tools, lived in constant fear of meat-eating animals.

The Cost of Thinking
Introduction	•Large brains for their bodies and the ability to walk upright are two ________ of human beings.
The ________ of large human brains	•The larger brains may not be better because of the cost. •The big brains make it harder for the body to move around and consume more energy. •The animal brain requires less ________when the body is at rest. •Large human brains consume more food, and weaken muscles.
The ________ of walking upright	•Walking upright makes it easy to find food or ________against enemies. •Freed hands can serve some ________ purpose and perform complex tasks.
	•Walking upright challenges the human bone structure, and ________ the size of brains. •Walking upright results in ________ sufferings.
Conclusion	•With a large brain, human beings ________ other beings in terms of intelligence. •Weak and marginal, human beings remained ________ of meat-eating animals.

请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。

The 65-year-old Steve Goodwin was found suffering from early Alzheimer's (阿尔楚海默症). He was losing his memory.

A software engineer by profession, Steve was a keen lover of the piano, and the only musician in his family. Music was his true passion, though he had never performed outside the family.

Melissa, his daughter, felt it more than worthwhile to save his music, to which she fell asleep catch night when she was young. She thought about hiring a professional pianist to work with her father.

Naomi, Melissa's best friend and a talented pianist, got to know about this and showed willingness to help.

"Why do this?" Steve wondered.

"Because she cares." Melissa said.

Steve nodded, tears in eye.

Naomi drove to the Goodwin home. She told Steve she'd love to hear him play. Steve moved to the piano and sat at the bench, hands trembling as he gently placed his fingers on the keys.

Naomi put a small recorder near the piano, Starts and stops and mistakes. Long pauses, heart sinking. But Steve pressed on, playing for the first time in his life for a stranger.

"It was beautiful." Naomi said after listening to the recording. "The music was worth saving."

Her responsibility, her privilege, would be to rescue it. The music was sill in Steve Goodwin. It was bidden in rooms with doors about to be locked.

Naomi and Steve met every other week and spent hours together. He'd move his fingers clumsily on the piano, and then she'd take his place. He struggled to explain what he heard in his head. He stood by the piano, eyes closed, listening for the first time to his own work being played by someone else.

Steve and Naomi spoke in musical code lines, beats, intervals, moving from the root to end a song in a new key. Steve heard it. All of it. He just couldn't play it.

Working with Naomi did wonders for Steve. It had excited within him the belief he could write one last song. One day, Naomi received an email. Attached was a recording, a recording of loss and love, of the fight. Steve called it "Melancholy Flower".

Naomi heard multiple stops and starts, Steve struggling, searching while his wife Joni called him "honey" and encouraged him. The task was so hard, and Steve, angry and upset, said he was quitting. Joni praised him, telling her husband this could be his signature piece.

Naomi managed to figure out 16 of Steve's favorite, and most personal songs. With Naomi's help, the Goodwin family found a sound engineer to record Naomi playing Steve's songs. Joni thought that would be the end. But it wasn't.

In the months leading up to the 2016 Oregon Repertory Singers Christmas concert, Naomi told the director she had a special one in mind: "Melancholy Flower"

She told the director about her project with Steve. The director agreed to add it to the playing list. But Naomi would have to ask Steve's permission. He considered it an honor.

After the concert, Naomi told the family that Steve's music was beautiful and professional. It needed to be shared in public.

The family rented a former church in downtown Portland and scheduled a concert. By the day of the show, more than 300 people had said they would attend.

By then, Steve was having a hard time remembering the names of some of his friends. He knew the path his life was now taking. He told his family he was at peace.

Steve arrived and sat in the front row, surrounded by his family. The house lights faded. Naomi took the stage. Her fingers. His heart.

（1）Why did Melissa want to save her father's music?

A．	His music could stop his disease from worsening.
B．	She wanted to please her dying old father.
C．	His music deserved to be preserved in the family.
D．	She wanted to make her father a professional.

（2）After hearing Steve's playing, Naomi ________.

A．	refused to make a comment on it
B．	was deeply impressed by his music
C．	decided to free Steve from suffering
D．	regretted offering help to her friend

（3）How can the process of Steve's recording be described?

A．	It was slow but productive.
B．	It was beneficial to his health.
C．	It was tiresome for Naomi.
D．	It was vital for Naomi's career.

（4）Before Steve finished "Melancholy Flower," his wife Joni ________.

A．	thought the music talent of Steve was exhausted
B．	didn't expect the damage the disease brought about
C．	didn't fully realize the value of her husband's music
D．	brought her husband's music career to perfection

（5）How did Steve feel at the concert held in downtown Portland?

A．	He felt concerned about his illness.
B．	He sensed a responsibility for music.
C．	He regained his faith in music.
D．	He got into a state of quiet.

（6）What can be a suitable title for the passage?

A．	The Kindness of Friends
B．	The Power of Music
C．	The Making of a Musician
D．	The Value of Determination

请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。

Who cares if people think wrongly that the Internet has had more important influences than the washing machine? Why does it matter that people are more impressed by the most recent changes?

It would not matter if these misjudgments were just a matter of people's opinions. However, they have real impacts, as they result in misguided use of scarce resources.

The fascination with the ICT (Information and Communication Technology) revolution, represented by the Internet, has made some rich countries wrongly conclude that making things is so "yesterday" that they should try to live on ideas. This belief in "post-industrial society" has led those countries to neglect their manufacturing sector (制造业) with negative consequences for their economies.

Even more worryingly, the fascination with the Internet by people in rich countries has moved the international community to worry about the "digital divide" between the rich countries and the poor countries. This has led companies and individuals to donate money to developing countries to buy computer equipment and Internet facilities. The question, however, is whether this is what the developing countries need the most. Perhaps giving money for those less fashionable things such as digging wells, extending electricity networks and making more affordable washing machines would have improved people's lives more than giving every child a laptop computer or setting up Internet centres in rural villages, I am not saying that those things are necessarily more important, but many donators have rushed into fancy programmes without carefully assessing the relative long-term costs and benefits of alternative uses of their money.

In yet another example, a fascination with the new has led people to believe that the recent changes in the technologies of communications and transportation are so revolutionary that now we live in a "borderless world". As a result, in the last twenty years or so, many people have come to believe that whatever change is happening today is the result of great technological progress, going against which will be like trying to turn the clock back. Believing in such a world, many governments have put an end to some of the very necessary regulations on cross-border flows of capital, labour and goods, with poor results.

Understanding technological trends is very important for correctly designing economic policies, both at the national and the international levels, and for making the right career choices at the individual level. However, our fascination with the latest, and our under valuation of what has already become common, can, and has, led us in all sorts of wrong directions.

（1）Misjudgments on the influences of new technology can lead to ________.

A．	a lack of confidence in technology
B．	a slow progress in technology
C．	a conflict of public opinions
D．	a waste of limited resources

（2）The example in Paragraph 4 suggests that donators should ________.

A．	take people's essential needs into account
B．	make their programmes attractive to people
C．	ensure that each child gets financial support
D．	provide more affordable internet facilities

（3）What has led many governments to remove necessary regulations?

A．	Neglecting the impacts of technological advances.
B．	Believing that the world has become borderless.
C．	Ignoring the power of economic development.
D．	Over-emphasizing the role of international communication.

（4）What can we learn from the passage?

A．	People should be encouraged to make more donations.
B．	Traditional technology still has a place nowadays.
C．	Making right career choices is crucial to personal success.
D．	Economic policies should follow technological trends.

请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。

In the 1960s, while studying the volcanic history of Yellowstone National Park, Bob Christiansen became puzzled about something that, oddly, had not troubled anyone before: he couldn't find the park's volcano. It had been known for a long time that Yellowstone was volcanic in nature-that's what accounted for all its hot springs and other steamy features. But Christiansen couldn't find the Yellowstone volcano anywhere.

Most of us, when we talk about volcanoes, think of the classic cone (圆锥体) shapes of a Fuji or Kilimanjaro, which are created when erupting magma (岩浆) piles up. These can form remarkably quickly. In 1943, a Mexican farmer was surprised to see smoke rising from a small part of his land. In one week he was the confused owner of a cone five hundred feet high. Within two years it had topped out at almost fourteen hundred feet and was more than half a mile across. Altogether there are some ten thousand of these volcanoes on Earth, all but a few hundred of them extinct. There is, however, a second les known type of volcano that doesn't involve mountain building. These are volcanoes so explosive that they burst open in a single big crack, leaving behind a vast hole, the caldera. Yellowstone obviously was of this second type, but Christiansen couldn't find the caldera anywhere.

Just at this time NASA decided to test some new high-altitude cameras by taking photographs of Yellowstone. A thoughtful official passed on some of the copies to the park authorities on the assumption that they might make a nice blow-up for one of the visitors' centers. As soon as Christiansen saw the photos, he realized why he had failed to spot the caldera; almost the whole park-2.2 million acres-was caldera. The explosion had left a hole more than forty miles across-much too huge to be seen from anywhere at ground level. At some time in the past Yellowstone must have blown up with a violence far beyond the scale of anything known to humans.

（1）What puzzled Christiansen when he was studying Yellowstone?

A．	Its complicated geographical features.
B．	Its ever-lasting influence on tourism.
C．	The mysterious history of the park.
D．	The exact location of the volcano.

（2）What does the second-paragraph mainly talk about?

A．	The shapes of volcanoes.
B．	The impacts of volcanoes.
C．	The activities of volcanoes.
D．	The heights of volcanoes.

（3）What does the underlined word "blow-up" in the last paragraph most probably mean?

A．	Hot-air balloon.
B．	Digital camera.
C．	Big photograph.
D．	Bird's view.

请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。

Whatever your age or interests, Buxton has something to see or do to make your visit truly memorable. High energy If you desire physical activities, you can choose activities from swimming to horse riding. Explore the heights with Go Ape, the high wire forest adventure course, or journey beneath the earth at Poole's Cavern. And don't forget: we are surrounded by a natural playground just perfect for walking, caving, climbing and cycling. High minded Buxton is justifiably proud of its cultural life and you'll find much to suit all tastes with art, music, opera and the performing arts at Buxton Opera House & Pavilion Arts Centre and Green Man Gallery. There are plenty of opportunities for the creative person to become involved, including workshops and events. Keeping the kids happy Children love the small train and playgrounds in the Pavilion Gardens and there's plenty more to explore at the Buxton Museum. There's a new indoor play centre, plus the special events and workshops, and others during school holiday periods

（1）If you want to take an undergounld journey, which place is the best choice?

A．	Pole's Caven.
B．	Pavilion Gardens.
C．	Buxton Museum.
D．	Green Man Gallery.

（2）Buxton Open House & Pavilion Arts Centre is special because it offers ________.

A．	rides in small trains
B．	courses in modcm arts
C．	artistic and cultural activities
D．	basic courses in horse riding

请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。

Wildlife has been greatly threatened in the modem age. There are species (物种) that are 1 every day. The white-naped crane is a typical example. So scientists are trying their best to 2 the species from going out of existence.

Chris and Tim work at a zoo, helping endangered cranes with their 3 . Emma, a female crane, has been in their 4 since she arrived in 2004.

Born at an international crane foundation, Emma was 5 by human caretakers. This led to an unexpected 6 , though she had a wonderful time there. Emma had 7 taken herself as a crane and become deeply attached to humans. She 8 to live with male cranes, and even had a 9 for killing some of them, which made it 10 for her to become a mother.

11 , the two zookeepers didn't want to see the extinction (灭绝) of this precious species. With their patience and efforts, they successfully developed a 12 of artificial breeding (人工繁殖) and natural reproduction. This 13 Emma to give birth to five baby cranes.

The two keepers are proud of their productive work. But before they can be 14 , more efforts must be made, because the population of the crane in the wild is on the 15 , and many other species appear headed toward extinction. 16 , not everyone has realized that wildlife has thoughts, feelings, and most importantly, equal rights to survive.

How can we 17 the ever-widening gap that separates us from other animals? Chris and Tim offered us the 18 : human beings took it for granted that their 19 held all the solutions, but maybe their hearts can be a better 20 .

1.

A．

growing

B．

migrating

C．

competing

D．

disappearing

2.

A．

ban

B．

save

C．

split

D．

remove

3.

A．

abortion

B．

recreation

C．

reproduction

D．

administration

4.

A．

care

B．

eye

C．

mind

D．

story

5.

A．

found

B．

chosen

C．

raised

D．

seized

6.

A．

bonus

B．

consequence

C．

victory

D．

sacrifice

7.

A．

never

B．

always

C．

unluckily

D．

cheerfully

8.

A．

liked

B．

refused

C．

decided

D．

hesitated

9.

A．

gift

B．

skill

C．

concern

D．

reputation

10.

A．

illegal

B．

inspiring

C．

important

D．

impossible

11.

A．

Therefore

B．

Moreover

C．

However

D．

Instead

12.

A．

combination

B．

collection

C．

strategy

D．

system

13.

A．

forced

B．

forbade

C．

taught

D．

enabled

14.

A．

defeated

B．

grateful

C．

assured

D．

tolerant

15.

A．

it

B．

rise

C．

agenda

D．

decline

16.

A．

In contrast

B．

After all

C．

By the way

D．

On the contrary

17.

A．

leave

B．

bridge

C．

open

D．

identify

18.

A．

course

B．

excuse

C．

answer

D．

reward

19.

A．

brains

B．

behaviors

C．

services

D．

projects

20.

A．

guide

B．

treat

C．

example

D．

companion