东北三校2021届高三下学期6月第四次联合模拟考试英语试题

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I'm Reed, 26 years old and from New York City, but I moved to Florida several months ago. I found out on the website that there was a huge rescue effort still going on down here and that volunteers were desperately needed. I was able to get a good friend to sponsor my trip here and had the opportunity to come up for a couple of weeks through the Christmas season,

When I first got here we were just moving into the new building. The first half of my stay I was mainly helping to set this place up help build a lot of the dug runs and just help out with whatever else was needed. The second week I started to be able to get out more and started filling up feeding stations in St. Bernard Parish.

One day we were out trying to check out an extremely pregnant dog that was reported to be out in St. Bernard Parish, which would soon have parts of it destroyed so getting as many animals out of there as possible was definitely a priority (最重要的事). When we arrived at the location we did see a female dog that clearly had already given birth to her puppies. I tied to befriend her as much as possible, giving her treats and slowly trying to build her trust. She wasn't going far, so that indicated her puppies were nearby.

Once we built somewhat of a rapport with her, we started to search for the puppies. Almost giving up, we arrived at a house that seemed like it could be a possibility. I got on my hands and knees trying to make out what was going on under the house, staying as quiet as possible. All of a sudden, I heard the weakest sound of a puppy's crying. After homing in on it a little bit more, there was clearly a trash under the house. After getting a little more help, we were able to get the puppies from under the house with success and we found out they weren't even a week old.

This experience was so unbelievable, one I know I'll never forget.

An inspiration for poets and authors, explorers and adventurers, the vast Arabian Desert is one of the most beautiful landscapes on the planet. It is hard not to be moved by its dramatic land or its seemingly endless sea of sand dunes (沙丘). However, limiting the physical movement of these natural desert wonders themselves is an almost impossible task.

Strong winds that blow up through these wide-open spaces sweep the surface, reshaping large sand dunes at will. In addition, running water from winter rains carves fresh patterns into the desert floor. The unique geography and constant flow of sand presents a set of challenges to the early settlements, particularly since many of them are situated in remote desert locations.

Fortunately, a discipline exists that traces its roots back to some of the earliest known civilizations, and which has also helped settlers there build safe, stable structures. Known as geotechnical engineering, it involves using geological knowledge to solve engineering problems and it is helping preserve desert operations through breakthroughs in sand and soil stabilization, without harming the natural environment.

Experts have piloted a new method of sand control that involves spraying chemicals onto sand around facilities where there is an absence of vegetation or biodiversity. Thus, a hard coat is created that prevents the sand from moving. This has proven so successful that it will cover a total of 700 square kilometers in the upcoming projects. The chemicals hold sand in place for between three to five years without influencing the environment, at which point another coat can be applied if required. We are now using predictive modeling and satellite imaging to determine the effectiveness of the approach, while trials have been scheduled to assess whether it can be applied to access roads und pipeline routes as well.

But as technology advances, so too must our approach to urban development. And as the science of materials progress, we can expect to see more examples of changing the way we connect with our surroundings.

Some people look forward to getting braces (牙箍) on their tooth, thinking they look cool. Other people avoid visiting the orthodontist (正齿医生) until resistance becomes in vain. But anyone who benefits from the orthodontist's trade today should be thankful for the progress this science has made over the centuries.

Remains of crooked (弯曲的) human teeth date back tens of thousands of years. Greek and Roman texts describing the treatment of irregular teeth by the application of pressure date buck as far as the fifth century B.C. Archaeological evidence indicates even earlier use of orthodontic appliances, including man-made objects found in considerable burial sites in ancient Italy. Another early attempt at braces may have been discovered on Egyptian mummies with recognizable metal bands around their teeth. Thus, from at least 1,000 BC, it was known that teeth move in response to pressure.

Techniques for correcting dental irregularities did not advance much until the eighteenth century. French dentists led the way to building orthodontic practice on scientific foundations. The greatest contribution came from Pierre Fauchard. In 1728, Fauchard published the first general study of dentistry. In it, he described the process of straightening. He made smooth a crooked tooth to create space around it. Then he repositioned the tooth using a tool called a "pelican". And he bound it to its neighbors and let it set. French and English dentists improved on Fauchard's work though the eighteenth century. Patients of Fauchard's treatment may have been grateful when the work was complete. While many of them faced the treatment with fear and cried during the procedures, there were many Frenchmen who flooded to Fauchard to improve their looks with dental work.

Pioneering European orthodontists introduced new techniques and instruments in the nineteenth century. By midcentury, American dentists began to take the lead in research and invention. Electricity revolutionized the operating room, and the proper medicine made surgery less painful. John Farrar developed guidelines for using tools to move teeth by applying force at regular intervals.

The twentieth century saw refinement in the materials and methods of orthodontics. But the fundamental principles of the science were developed during the days of Fauchard.

Selflessness is an important key to marriage, friendship, and relationships. It is also a vital key to happiness and fulfillment(满足). But unfortunately, often overlooked.

Selflessness is often overlooked as a key to happiness because, on the surface, it appears to run contrary to the very concept.No, it is not. Or at least, it doesn't need to be.

Our lives can be lived for any number of purposes.But our lives can also be lived for the pursuit(追求)of justice, happiness, or growth for another person or people group. We can devote ourselves to advancing certain causes. But only when we practice service and selflessness will we find lasting significance in our world.

Many will try to explain success in terms of winning out over others, having power over others, or the ability to control others.Nobody is drawn to selfishness. Nobody is willing to give themselves up for one who desires his own kingdom above all things.

We are uniquely drawn to those who selflessly give of themselves. Those who love und give generously find a type of fulfillment that extends beyond position or title.

Instead, may we choose to pursue selflessness as the very means to achieve happiness—not just for ourselves, but for those we choose to love.

A. Nobody seeks the wise advice of a selfish person.

B. But this type of happiness and influence is short-lived.

C. Isn't the pursuit of happiness by its very nature selfish?

D. May we refuse to overlook the importance of selflessness.

E. Is the desire for happiness common and widespread in humans?

F. Their stories are told in positive ways and their happiness is truly lasting.

G. They can be used to advance a personal kingdom for selfish reasons—money or reputation.

Whitson 44, set out on June 13 with his ninth-grade son and his wife. Ramirez, eager to show them the wild beauty of the Arroyo Seco (a river in central California). The first night, they built a 1 and pan-fried a steak, 2 it with chocolate bars for dessert. The last thing any of them 3 was that they would become 4.

А 5 that was supposed to be secured at the top of the slide — the only safe way down — was 6. There was no way to climb out of the gorge. The rope had been 7 to the slippery rock wall when Whitson had made the same journey seven years before. At the time, he'd carefully lowered himself down the side of the waterfall and continued his 8.

Thoughts raced through Whitson's mind: 9 spring rains had likely washed the rope away. There was no other way to 10 get down. Friends knew they were in Arroyo Seco, but it might be several days 11 a search party was 12. There was no cell service. He desperately 13 a plan.

Whitson looked at his water bottle and he suddenly had an 14: He 15 "HELP!" on each side of the bottle and wrote an SOS note on a piece of paper with the 16, June 15, and their whereabouts — then put it inside. The bottle sailed into the pool and then 17 through the narrow passageway. It was a very long shot. Fortunately, they didn't wait long. About a quarter mile downstream, two 18 had spotted the bright green bottle right away; read the 19 and hiked to the Arroyo Seco Campground to alert (向……报警) the manager to 20 a search and rescue team.

It is well known that China's high-speed rail is famous in the world because(compare) with other countries, it has the following(advantage).

Firstly, China's technology on building the railway is leading the rest of the world and there is no signany other country could surpass China's position in the near future.

Secondly, China(have) a high-speed train network and the scale is(believable) to other countries. There are more than(two) as many high-speed trains in China as the rest of the world combined. Big cities like Beijing havecouple hundred high-speed trains slopping at the city every day.

Last but not least, the trains are clean and the seats are huge. There are power points and you can't even feel how fast the train is moving. If there(be) no windows, we wouldn't be able to tell when we were stopped or when we were traveling300 km/h—it is that smooth.

In conclusion, China's high-speed rail is(real) amazing.

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词；

2）只允许修改10处，多者（从第11处起）不计分。

According to the World Health Organization, 81% of teenagers are lacked in exercise. The result of the survey sounds reasonable. They may seem surprising, though.

Some of us think exercising is a waste of time when having many homework in high school. Others prefer phones to sports. Apart from these reasons, there is even some students who complain that they can't afford sports facilities.

However, doing regular exercises can strengthen our body but make us energetic. It is also beneficial as it helped to remove pressure once in while. Therefore, my fellow friends, remember to stretch out ourselves every day at intervals of studies. More important, do stick with the workout.

As teenagers, we all expect for healthy bodies and a high quality of life. Let's exercise together from then on!

1）经历过程；

2）个人感受。

注意：1）词数100左右；

2）题目已为你写好。

An Unforgettable Experience in My Life