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题型:阅读理解 题类:模拟题 难易度:普通

北京市顺义区2021届高三英语第二次统练试卷

阅读理解

Have you ever heard of invisible ink? You may have seen it in movies. When light is shone on the paper which invisible ink is written on, you can read it!

As magical as this seems, the change in color is due to science. The ink is absorbing higher energy light and giving lower energy light. This reaction is an example of fluorescence (荧光) .

Light is a very broad term that describes a range of electromagnetic rays, including gamma rays, infrared light (红外光) and ultraviolet light. One part of the electromagnetic visible light is the colors that we can see with the human eye. These rays travel in curvy lines and each type of the ray is characterized by a different wave pattern. For example, Gamma rays have a shorter wavelength than infrared light. Shorter wavelength is connected with higher energy, so gamma rays also have more energy than infrared light.

Corals (珊瑚) are animals that live underwater. And the corals in the Red Sea exhibit fluorescence. Why is this happening? Scientists have shown that fluorescent objects absorb higher energy light and release lower energy light. Since the corals of the Red Sea are deep in the water where there is very little visible light, scientists theorize that these corals absorb ultraviolet light and produce visible light. They have special photo proteins, which enable them to change invisible light to visible light.

Fluorescence is not just used to create pretty colors. Corals have developed photo proteins for a biological reason. The visible light is used by algae (海藻) , which are eaten by the coral, to make food through photosynthesis (光合作用). The visual character of these photo proteins could also be used for biomedical research. They can highlight cells and cell structures under a microscope.

Isn't it amazing that a simple organism that we don't think very much of is not only grand but could also have so many potential uses in medical research!

(1)、The author mentioned invisible ink to________.
A、describe its various uses in movies B、analyze the many changes in colors C、prove the magical power of science D、give an explanation of fluorescence
(2)、What can we learn about fluorescent corals from the passage?
A、They take in higher energy light. B、They cannot live in visible light. C、They are invisible deep in water. D、They produce more infrared light.
(3)、Why are the corals in the Red Sea fluorescent?
A、To make full use of photosynthesis. B、To make their appearances colorful. C、To provide light for algae to make food. D、To defend themselves from being eaten.
举一反三
阅读理解

    I have a friend who lives by a three-word philosophy: Seize the moment. Just possibly, she may be the wisest woman on this planet. Too many people put off something that brings them joy just because they haven't thought about it. Don't have it on their schedule, and didn't know it was coming or they are too strict to depart from their routine.

    I can't count the times I called my sister and said, “How about going to lunch in half an hour?” She would gasp and stammer(结结巴巴地说), “I can't. I have clothes on the line. My hair is dirty. I wish I had known it yesterday, I had a late breakfast, and it looks like rain.” And my personal favorite response: “It's just Monday.” She died a few years ago. We never did have lunch together. From then on, I've tried to be a little more flexible.

    Life has a way of going faster as we get older. The days get shorter, and the list of promises made to ourselves gets longer. One morning, we are awaken, and all have to show for our lives is repetition of “I'm going to”, “I plan on” and “Someday, when things are settled down a bit.”

    When anyone calls my “seize the moment” friend, she is open to adventure and available for trips. She keeps an open mind on new mind on new ideas. Her enthusiasm for life is contagious. You talk with her for a while, and you're ready to change your attitude to life.

    My lips have not touched ice cream in 10 years. I love ice cream. The other day, I stopped the car and bought a triple-decker. If my car had hit an iceberg on the way home, I would have died happy. Now go on and have a nice day. Do something you WANT to, not something on your SHOULD DO list.

阅读理解

    As kids, my friends and I spent a lot of time out in the woods. "The woods" was our part-time address, destination, purpose, and excuse. If I went to a friend's house and found him not at home, his mother might say, "Oh, he's out in the woods," with a tone (语气) of airy acceptance. It's similar to the tone people sometimes use now a days to tell me that someone I'm looking for is on the golf course or at the gym, or even "away from his desk". For us ten-year-olds, "being out in the woods" was just an excuse to do whatever we feel like for a while.

    We sometimes told ourselves that what we were doing in the woods was exploring (探索). Exploring was a more popular idea back then than it is today. History seemed to be mostly about explorers. Our explorations, though seemed to have less system than the historic kind something usually came up along the way. Say we stayed in the woods, throwing rocks, shooting frogs, picking blackberries, digging in what we were briefly persuaded was an Indian burial mound.

    Often we got "lost" and had to climb a tree to find out where we were. If you read a story in which someone does that successfully, be skeptical; the topmost branches are usually too skinny to hold weight, and we could never climb high enough to see anything except other trees. There were four or five trees that we visited regularly-tall beeches easy to climb and comfortable to sit in.

    It was in a tree, too, that our days of fooling around in the woods came to an end. By then some of us has reached seventh grade and had begun the rough ride of adolescence (青春期). In March, the month when we usually took to the woods again after winter, two friends and I set out to go exploring. We climbed a tree, and all of a sudden it occurred to all three of us at the same time that we really were rather big to be up in a tree. Soon there would be the spring dances on Friday evenings in the high school cafeteria.

阅读理解

    GROUP EVENTS & PARTIES

    Wanting to have a great time for a special occasion (场合), but are tired of the usual restaurant dinner, or house party? If so, then bring your group to Florida Surf Lessons to go surfing and then get ready for a great time on the beach, and in the surf!

    Tell us what your theme is and then let the professionals at Florida Surf Lessons take care of the rest!

    Birthday Parties: Surfing birthday parties are a fantastic way to celebrate life by getting out there and experiencing it. Guests at a surfing party will be grateful for this opportunity to join you in beginning this new and exciting challenge in life. We provide goodie bags (礼品包) and all. Parents: Not only will your child appreciate you but your celebrity status (名人地位) with their friends will soar!

    Teams & Clubs: Mix up the daily routine by taking your team or club surfing with Florida Surf Lessons. Your group is sure to have a wonderful experience.

School Field Trips: Attention teachers! Give your kids a field trip that is educational, fun and sure to please.

    Reunions & Family Events: Surfing is a terrific way to bring loved ones and friends together.

    Graduation Parties: Let's go surfing to celebrate this great occasion.

    Age Requirements: Min: 5 years old — For Both Kids and Adults—Men and Women

    Group Size: Over 5 People

    When Offered: Every day from July 1 to August 30. Click Here For More Information!

    Cost: $48.00 per person(A 20% discount will be given to a group of over nine people)

    Included: Professional Surf Instruction + Surfboard + Party Favors

    Lesson Length: 3 Hours (booking ahead of schedule is needed)

    Male And Female Instructors Available: Yes

    Contact Us: 561-625-5375· info@floridasurflessons.com

阅读理解

    Growing up, I wanted to be just like my mom. She was kind. People always seemed to feel comfortable in her presence. For years, she was a volunteer in our community. I loved going to the local nursing home with her where she taught a ceramic(陶艺)class.

    On one summer day, Mama told me to get changed and meet her at the car. I had planned to spend the day at the lake with friends. Why did she have to ruin everything? I imagined the cool lake water. Irritated, I climbed into the car and slammed the door shut. We sat in silence. I was too upset to make conversation.

    “Tasha, would you like to know where we are going?” Mama asked calmly.

    “No,” I said.

    “We are going to volunteer at a children's shelter today. I have been there before and I think it would benefit you.” she explained.

    When we reached the shelter, Mama rang the doorbell. Moments later, we were greeted by a woman. She led us to the front room where all of the children were playing. I noticed a baby whose body was scarred with iron marks. I was told it was because she wouldn't stop crying. The majority of the children had noticeable physical scars. Others hid their emotional wounds.

    As I took in my surroundings, I felt a gentle tug on my shirt. I looked down to see a little girl looking up at me. “Hi! You want to play dolls with me?” she asked. I looked over at Mama for reinforcement. She smiled and nodded. I turned back and said, “Sure.” Her tiny hand reached up and held mine, as if to comfort me.

    My mom taught me a valuable lesson that summer. I returned to the shelter with her several times. During those visits, some of the children shared their troubled pasts with me and I learned to be grateful for what I had. Today as I convey these values to my own child, I reflect back to that experience. It was a time that I will never forget.

阅读理解

    Young people's mental health is of increasing interest and concern to researchers, policymakers, and families alike-but can treating teenagers' mental health problems also improve the wellbeing of their parents? New research suggests that it can. The study, conducted by Kelsey Howard, a doctoral candidate at Northwestern University, found that regardless of which treatment teenagers were using for their depression, the mental health of their parents improved too.

    Older findings say that there is a link between mothers' depression and major depression in their teenagers, although it seems not to be biological. However, the latest research suggests that the relationship between parents' and their children's mental health might work in the other direction too.

    While Howard's research hasn't evidenced a clear reason for this trend, she told The Atlantic: “If the family members interact with (交往) each other well, the kid will be more pleasant to be around and make less negative statements, which will affect how other family members think.”

    Tom Madders, director of campaigns at YoungMinds, told HuffPost UK that for parents, watching their children go through mental health problems can be difficult, especially if they feel responsible. Madders also noted that parents often make big lifestyle changes, say, giving up their jobs, to support their children with depression, particularly in cases where their children have to leave school because of their mental health problems. However, Madders thought this can only make things worse. “Parents' sacrifice adds pressure to the delicate shoulder owners,” he said.

    The process of waiting to get treatment can also be an added stressor: “Every day we get calls to our helpline from parents whose children have been waiting months for an initial assessment, or left on long waiting lists for treatment that they need … that's why it's important that the Government commits to long-term extra investment in children's mental health services.”

阅读理解

    Leadership today is not about forcing others to do things. If this is even possible, it is short-term. If you order someone to do something against their will, they may do it because they feel they must, but the anger they feel will do more harm in the long-term. They will also experience fear.

    Fear causes the thinking brain to shut down, making the person unable to function at his or her best. If they connect you with this emotion of fear, they will become less functional around you, and you will have succeeded in not only shooting yourself in the foot, but possibly making a very good employee or partner unable to perform effectively. Fear has no place in leadership.

    The way we affect people in a lasting way is by our own character, and our understanding and use of emotion. We can order someone to do something, which may be part of the work day, or we can employ them at the emotional level, so they become fully devoted to the projects and provide some of their own motivation(积极性).

    Today's work place is all about relationships. Anyone works harder in a positive environment in which they're recognized and valued as a human being as well as a worker. Everyone produces just a bit more for someone they like. Leaders understand the way things work. They know money is not the only most motivating factor in the work life of most people.

    The true strength of leadership is an inner strength that comes from the confidence of Emotional Intelligence-knowing your own emotions, and how to deal with them and those of others. Developing your emotional intelligence is the best thing you can do if you want to develop your relationships with people around you, which is the key to the leadership skills.

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