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题型:阅读理解 题类:常考题 难易度:普通

上海市行知高中2020-2021学年高一下学期英语4月第一次月考英语试卷(含完整音频)

Escaping predators(食肉动物), digestion and other animal activities — including those of humans — requires oxygen. But that essential ingredient is no longer so easy for marine life to obtain, several new studies reveal.

In the past decade ocean oxygen levels have taken a dive — an alarming trend that is linked to climate change, says Andreas Oschlies, an oceanographer at the Helmholtz Center for Ocean Research in Germany, whose team tracks ocean oxygen levels worldwide. "We were surprised by the intensity of the changes we saw, how rapidly oxygen is going down in the ocean and how large the effects on marine ecosystems are," he says. It is no surprise to scientists that warming oceans are losing oxygen, but the scale of the drop calls for urgent attention. Oxygen levels in some tropical regions have dropped by an astonishing 40 percent in the last 50 years, some recent studies reveal. Levels have dropped less significantly elsewhere, with an average loss of 2 percent globally.

A warming ocean loses oxygen for two reasons; First, the warmer a liquid becomes, the less gas it can hold. That is why carbonated drinks(碳酸饮料) go flat faster when left in the sun. Second, as polar sea ice melts, it forms a layer of water above colder, more salty sea waters. This process creates a sort of lid that can keep currents from mixing surface water down to deeper depths. And because all oxygen enters the surface, less mixing means less of it at depth.

Ocean animals large and small, however, respond to even slight changes in oxygen by seeking refuge(避难所) in higher oxygen zones or by adjusting behavior, Oschlies and others in his field have found. These adjustments can expose animals to new predators or force them into food-scarce regions. Climate change already poses serious problems for marine life, such as ocean acidification, but deoxygenation is the most pressing issue facing sea animals today, Oschlies says. After all, he says, "they all have to breathe."

Aside from food web problems, animals face various other physiological challenges as their bodies adjust to lower oxygen levels. Chinese shrimp(虾) move their tails less vigorously to preserve energy in lower oxygen environments. Some creatures, such as jellyfishes, are more tolerant of low oxygen than others are. But all animals will feel the impact of deoxygenation because they all have evolved their oxygen capacity for a reason, says Oschlies. "Any drop in oxygen is going to damage survivability and performance," he says.

(1)、According to the first two paragraphs, what worries scientists the most?
A、The worsening deoxygenation in the warming ocean. B、The survival of predators and various marine animals. C、The alarmingly changeable oxygen levels in the ocean. D、The lack of attention to the warming of tropical oceans.
(2)、Which of the following is a reason for the oxygen loss in the ocean?
A、Polar ice melting consumes much oxygen in the ocean. B、Global warming reduces the amount of oxygen in the air. C、The surface polar ice water prevents oxygen going down. D、Salty water holds less gas in the increasingly warmer ocean.
(3)、What can be inferred from the passage?
A、Ocean deoxygenation changes some animals' natural territories. B、Ocean acidification is more serious a problem than deoxygenation. C、Not all ocean animals are bothered by the decreasing oxygen levels. D、Some animals reduce their movements in order to absorb more oxygen.
(4)、Which of the following is the best title of the passage?
A、The Oxygen Levels of Marine Life B、Ocean Warming Affects Food Web C、The Survivability of Ocean Animals D、The Ocean Is Running Out of Breath
举一反三
阅读下列短文,从每题所给的四个选项中(A、B、C、D)中,选出最佳选项。

    What would it take to persuade you to exercise? A desire to lose weight or improve your figure? To keep you away from diseases? To live to a healthy old age? You'd think any of those reasons would be enough to get Americans exercising. Yet a vast majority of Americans have thus far failed to swallow the "exercise pill".

    Now a research by psychologists strongly suggests it's time to think of current well-being(幸福)and happiness as motivators for exercise instead of future health, weight loss and body image.

    Dr. Segar, one of the researchers, believes that immediate rewards are more motivating than distant ones. "People who say they exercise for the quality of life exercise more over the course of a year than those who say they value exercise for its health benefits." He said. '

    Other studies have shown that what keeps people moving depends on age, sex and life circumstances. For those of college age, physical attractiveness typically heads the list of reasons to begin exercising, although what keeps them going seems to be the stress relief that a regular exercise program provides. The elderly, on the other hand, may get started because of health concerns. But often what keeps them exercising are the friendships and sense of community that may otherwise be missing from their lives. Improving daily well-being is the most influential factor for the women. Men indicate they are motivated by more distant health benefits, but this may be because men feel less comfortable discussing their mental health needs.

    "Exercise should be encouraged but the emphasis on weight loss, disease prevention and healthy aging should be reduced." Dr. Segar concluded. "Exercise can make people feel more energetic, less stressed and, yes, happier."

根据短文理解,选择正确答案。

    What is success? I am not going to try to explain success. I think a precise meaning is impossible! Is it winning a Gold Medal at the Olympic Games or winning Wimbledon, or being awarded a Nobel Prize? What else? I believe personal success could be anything at all- it does not have to involve public recognition. Who is more successful? A millionaire who is unhappy, or an unnoticed person, who has led a simple, quiet, sincere and happy life? The simplest definition of success, I think, is “to set out to do something and to succeed in doing it.

    The first step on the road to success starts with belief. Believe you can succeed and you will. Achieving success in whatever endeavor(努力)you choose may be the goal of life; because it gives you freedom from worry. Could that be?

    Success means different things to every one of us. Some people believe it is measured in financial term; others believe it is helping others rather than helping themselves. However, most people are motivated to a great extend by public recognition. How many people are really happy? How many people are really doing what they want to with their lives? Incidentally, to imagine makes us different from animals.

    Most important of all, I believe success is a matter of personal growth. If every day you are developing or growing just a millimeter, I believe one is successful. Just being a slightly better person each day for me is success. I've got a very long way to go them!

    Finally, always remember success is a process and is not simply a matter of arriving at a destination. It's the journey that really matters. Success is what you become in the often very difficult and dangerous journey down the river of life.

根据短文内容,选择最佳答案。

How to Study Smarter, Not Harder

    Here are some of our favorite study tips that will help any student study smarter, not harder:

Recite As You Study

    Reciting—saying things out loud should first take place as you read through each paragraph or section. Test yourself. This will help you to understand as well as learn faster because it is more active than reading or listening. It will also help you to notice your mistakes and the topics you have trouble understanding.

Take Fuller Notes

    Notes should be in your own words, brief and clear. They should be tidy and easy to read. Writing notes will help you better than just underlining as you read, since it forces you to rewrite ideas in your own words.

Study the Middle

    The best time to review is soon after you've learned something. You are more likely to remember the material at the beginning and the end of the lesson, so make sure you focus on the middle when you review.

Sleep On It

    Study before going to bed, unless you are very tired. It's easier to remember material you've just learned before sleeping than after an equal period of daytime activity, because your brain continues to think even after you've fallen asleep.

Combine Memory and Understanding

    There are two ways to remember: by memorizing and by understanding. Multiplication tables, telephone numbers, and math formulas are better learned by rote. Ideas are best learned by understanding.

    The more ways you have to think about an idea, the more meaning it will have; the more meaningful the learning, the better you can remember it. Pay attention to similarities in ideas and concepts, and then try to understand how they fit in with things you already know. Never be satisfied with anything less than a completely clear understanding of what you are reading. If you are not able to follow the thought, go back to the place where you first got confused and try again.

阅读理解

    “Heaven (天堂) is where the police are English, the cooks are French, the mechanics are German, the lovers are Italian and everything is organized by the Swiss. Hell (地狱) is where the police are German, the cooks are English, the mechanics are French, the lovers are Swiss, and everything is organized by the Italians.”

    Obviously the national stereotypes (模式化的思想) in this old joke are generalizations (普遍化), but such stereotypes are often said to “exist for a reason”. Is there actually a sliver (裂片) of truth in them? Not likely, an international research team now says.

    “National and cultural stereotypes do play an important role in how people see themselves and others, and being aware that these are not dependable is a useful thing,” said study author Robert McCrae of the National Institute on Aging. “These are in fact unfounded stereotypes. They don't come from looking around you,” McCrae said.

    If national stereotypes aren't rooted in real experiences, then where do they come from? One possibility is that they reflect national values, which may become known from historical events. For example, many historians have argued that the spirit of American individualism (个人主义) has its origins in the experiences of the pioneers on the Old West.

    Social scientists such as psychologist Richard Robins have given several other possible explanations for stereotypes and why they may be incorrect. Robins notes that some stereotypes may have been correct at one point in history and then remained unchanged while the culture changed.

    We may be “hard-wired”, to some degree, to keep incorrect stereotypes, since we are less likely to notice and remember information that is different from our stereotypes. Generally, according to Robins, when we meet people who are different from our stereotypes, we see them as unique individuals rather than typical national or cultural groups.

阅读理解

    Alibaba started taking the lead in China by connecting big Chinese manufacturers(制造商)with big buyers across the world. Its business-to-business site, Alibaba.com allowed business to buy almost everything. Alibaba's advantage wasn't hard to judge: size. Alibaba is just big, even by Chinese standards. Its market attracts 231 million active buyers, 8 million sellers, 11.3 billion orders a year—and Alibaba is just the middleman. It encourages people to use its markets—not charging small sellers a percentage of the sale.

    If you want a quick look into the influence of Alibaba on daily Chinese life, take my experience. I moved to Beijing a year ago and quickly got tired of visiting small stores across the crowded, polluted city of 20 million people in search of new electronics, bathroom furnishings, and anything else my wife wanted. “You're looking for what exactly? Why not try it?” My Chinese teacher asked me one day. With that, my wonderful new relationship with Alibaba began.

    Alibaba's original business-to-business model now is second to consumer buying. Chinese retail(零售)buying makes up 80% of Alibaba's profit, and leading that group is Taobao, with 800 million items for sale and the most unbelievable selection of things you'll ever find. TMall.com is Alibaba's other big site, where you can find brand name goods from Nike and Unilever near the lowest prices.

    What I have a hard time explaining to friends and family back in the U.S.is how China has gone beyond traditional shopping—big-box retailers especially—in favor of online purchases on Taobao and a few other sites. In smaller towns than Beijing, where big retailers have not yet traveled, shopping online is shopping, and shopping is Taobao.

    I have a list of some of my recent purchases on Taobao for a sense of how wide the marketplace is. Almost everything arrived a day or two after ordering with free shipping. I'm not even a big buyer, because I need friends to help me search the Chinese-language site. When I was searching my purchase history on my Chinese teacher's iPad, which helps me buy goods, I looked through with great difficulty about 10 of her purchases for every one of mine.

阅读理解

Dogs are man's best friends—they are very good for children's health. Researchers found that family pets helped to protect babies against breathing problems and infections (感染).

    A team from Kuopio University Hospital in Finland studied 397 babies born at their hospital between September 2012 and May 2015 for their first year. They found that babies who lived with a dog or a cat spent fewer weeks with ear infections, coughs or runny noses. They were also less likely to need antibiotics (抗生素) than babies in homes without a pet.

    Study author, Dr. Eija Bergroth, said dogs brought dirt and bacteria (细菌) into the home, which helped children's immune system (免疫系统) to be strong. This improved their defenses against bacteria.

    As part of the study, parents filled out weekly diaries starting when the children were nine weeks old, recording information on babies' health as well as their contact with cats and dogs. They recorded if they had fever, ear infections, coughs or running noses. They also put down whether they needed antibiotics.

    Based on those diaries, the researchers found that about a third of the children spent most of their first year with a pet dog and 24 percent in a home with a cat. And children with no dog contact at home were healthy for 65 percent of the time, compared to between 72 and 76 percent for those who did have a pet.

    The researchers also found that contact with dogs, more than cats, was tied to fewer weeks of sickness for babies.

    However, the researchers said they couldn't rule out the possibility that people who own dogs are less likely to get sick for another reason, not due to any protection offered by pets.

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