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题型:阅读理解 题类:模拟题 难易度:普通

北京市房山区2020届高三英语第一次模拟考试试卷

阅读理解

Benefits and Problems of Genetic Engineering

    Plant breeding is the science of changing the characteristics of plants in order to produce desired ones. Genes in a plant are what determine what type of characteristics it will have. Plant breeders try to create a specific outcome of plants and potentially new plant varieties by changing the genes of the plants through breeding, which is making new plants from parents of different varieties or species.

    Actually, plant breeding has been practiced for thousands of years, since near the beginning of human civilization. It is practiced worldwide by individuals such as gardeners and farmers and by professional plant breeders employed by organizations such as government institutions, universities, crop-specific industry associations or research centers. They have crossbred plants to create the new types of plants that are, for example, bigger, stronger, or more attractive.

    Crossbreeding can take such a long time, however, and it is inaccurate. Now, we can change exact sections of Deoxyribonucleic acid (DNA), so the process is more accurate and faster. But people all over the world are arguing about its benefits and disadvantages. Some people use the technology to produce desired characteristics of plants and animals. Other people are concerned that the genetically engineered plants may harm the environment and worried that they may be dangerous for people to eat.

    There are many reasons for changing plants in this way. International development agencies believe that breeding new crops is important for ensuring food security by developing new varieties that are higher yielding(高产的), disease resistant, drought tolerant or regionally adapted to different environments and growing conditions. For example, some genetically engineered plants can live through frost or draught. As a result, famers can make more profit because fewer plants will die.

    Some genetically engineered plants are more nutritious. They have less fat, taste better or stay fresher than non-genetically engineered plants. This will allow people to buy better-quality fruit and vegetables.

    Some genetically engineered plants can resist natural pests such as viruses or insects. This reduces the amount of chemical needed to kill pests, which is helpful to the environment.

    However, genetically engineered plants can cause unexpected problems. Genetically engineered plants that resist pests may pass on that characteristic to a wild relative. This may cause the wild plant to spread fast, because pests are not naturally killing it.

    Genetically engineered plants can also harm animals. A type of corn has been developed which kills a species of insect that destroys it. The pollen (花粉) from this corn, however, can also kill monarch butterflies—the most beautiful of all butterflies, which do not harm the corn.

    To ensure the most adapted varieties are identified, advocates of organic breeding now promote the use of direct selection for many desired characteristics.

    Genetic engineering is a very new science and we have a lot to learn about the good it can do and the damage it can cause. The main concern is that not enough tests are being done to ensure it is safe.

(1)、According to the passage, the purpose of plant breeding is to     .
A、beautify the environment B、change the genes of plants C、produce new plant varieties D、assess the value of the practice
(2)、The author thinks crossbreeding inaccurate because     .
A、the sections of DNA are changed B、problems are sometimes caused C、manpower and resources are wasted D、animals are produced using the technology
(3)、The author's attitude toward crossbreeding is     .
A、doubtful B、disapproving C、objective D、supportive
(4)、Which of the following best shows the structure of the passage?

Sp:Sub-point (次要点)      C:Conclusion

I:Introduction       Cp:Central Point       P:Point

A、 B、 C、 D、
举一反三
阅读理解

    Housework is a frequent source of disputes (争论) between lazy husbands and their hard-working wives, but women have been warned not to expect men to pull their weight any time soon.

    A study from Oxford University has found that men are unlikely to be doing an equal share of housework before 2050. Mothers, the researchers warned, will continue to shoulder the burden of childcare and housework for the next four decades, largely because housework such as cleaning and cooking is still regarded as“women's work”.

    The gap between the amount of time men and women spend on housework has narrowed slowly over the past 40 years. But it will take another four decades before true housework equality is achieved, the study concluded. The research found that in the Nordic countries, the burden of housework is shared more equally between men and women. In the UK, women spend an average of four hours and forty minutes each day on housework, compared with two hours and twenty-eight minutes for men. This is an improvement from the 1960s, when British women typically spent six hours a day on housework, while men spent just 90 minutes every day.

    But progress towards housework equality appears to be slowing in some countries. Dr Oriel Sullivan, a research reader from Oxford's Department of Sociology, said, “we've looked at what is affecting the equality in the home, and we have found that certain tasks seem to be given according to whether they are viewed as ‘men's work' or ‘women's work'.”Dr Sullivan said cultural attitudes taught at school may be responsible for the views of housework. “At school it is much easier for a girl to be a tomboy, but it is much more difficult for a boy to enjoy baking and dancing,” she said.

根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。

阅读理解

    Have you ever noticed that the more you have the more you want?Let's face it. Thinking our life is good enough doesn't come naturally to many people. When we have high expectations of everything in life we will run into disappointment. Only when we are aware that needs are different from desires can we live with satisfaction. Here are a few ideas to help you be happier with what you have and who you are.

    Focus on what you are thankful for. Most people want things to be better than they are, or when things are going well, we forget to appreciate what we have. Learn to reflect on how much better things are than they could be. Focus on what you are thankful for. Write down 5 things you are grateful for right now.

    When we hold onto regrets from decisions we have made, it can really poison our wellbeing. Many people regret something they can no longer change, which ends up holding them back from moving forward in a more positive manner. What happened in the past is done and gone, so work to stay present and be mindful of the current moment to find more joy and fulfillment.

    When we use other people as the measuring stick for our personal success and quality of life, we are likely to be less satisfied. Social comparisons can provide useful information when we try to learn from others, but they also hold our perspective in a discontented position. Compare yourself less with others so you can be satisfied more.

    When you are focused on your big ambitions and future goals, you might elide the daily pleasures that surround you. Learn to slow down and absorb the wonder and beauty around you. Stay present and focus on the task you're undertaking at the moment. Don't let the life pass you by because you're always on the go and distracted by ambition.

    Practice looking at life through the lens of contentment and it will become more natural.

阅读短文,选出最佳选项。

As people are becoming more socially conscious about where their food comes from and how it impacts the planet, they are choosing animal-free plant-based options. Cow-free meat has been around for quite some time and the popularity of brands of the cultivated meat is rising. While there are a large number of plant-based milk substitutes, none of them have the same taste of cow's milk. Now, a food-tech company created real dairy products without harming a single cow or the planet.

The company stresses that their product produced in the lab is not a milk substitute but rather is the real deal. And it is very healthy. The company also says that the lab-produced milk tastes identical to the real thing and they hope to eventually replace cows by creating every dairy product sold. They expect to roll out plant-based cheese and yogurt in addition to milk. “Our company was founded with the mission to stop using animals to produce -our food because, as dairy lovers, we realize that giving up on milk is not an option,” John said. “But today's milk comes with an unreasonable price tag. The dairy industry is destructive to our planet, our health, and our animals, and is simply not sustainable anymore.”

The environmental price tag of dairy farming is way too high. According to the World Wildlife Fund, dairy cows add a huge amount of greenhouse gases to the atmosphere and-contribute to global warming and climate change as well as pollute the air around them. Dairy operations consume large amounts of water and run-off of manure and fertilizers from these farms get into local waterways. The production uses only 5 percent of the resources and produces only 1 percent of the waste of producing cow's milk according to the company. And they accomplish this by being 100 percent cruelty-free unlike dairy farms.

 根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。

By clicking the thumbs up, posting a comment, or sharing a post, people are validating(认可) each other at an increasing rate. This, as well as the need for in-person validation, can create anxiety, depression, and low self-esteem and make it addictive to hear praise, acceptance, and acknowledgment in all aspects of life.

To break free from external validation, it's key to learn to be aware when you are seeking it.{#blank#}1{#/blank#} Here are some meaningful steps to begin that journey.

{#blank#}2{#/blank#}Getting off social media is a great place to start. This reduces the comparison to others or the anxiety and stress about how your picture, post, or comment is being seen and received by others.

Be mindful. Look carefully at what you are doing.{#blank#}3{#/blank#}These are self-validations that help you build up your acknowledgment of your own abilities, talents, and skills.

Do not ask for validation. {#blank#}4{#/blank#} If you do receive validation (encouragement or acknowledgment) recognize the praise and acknowledge it, then stop. Do not continue to ask others or seek out others for validation.

Keep in mind that validation is not a bad thing in your life; it is positive without doubt. {#blank#}5{#/blank#}

A. Take a social media break.

B. Ignore the need for praise and acceptance.

C. It's only problematic when it's your single focus.

D. Track and record improvements, mentally or on paper.

E. Problems arise when self-validation is valued too much. 

F. Instead of seeking validation from others, ask yourself first.

G. This self-awareness can lead to growth through internal validation.

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