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题型:阅读理解 题类:常考题 难易度:普通

外研版(2019)高中英语必修一Unit 3同步练习

阅读理解

    Susan couldn't help it. She and her friends began lunch with cheese. Then they ate cheeseburgers and drank milk. Things seemed fine, but then suddenly Susan's stomach started making noise. Her stomach hurt, and, racing to the restroom, she had terrible gas! She was so ashamed. She had been so excited to go to lunch with her friends that she totally forgot to watch how many dairy products (奶制品) she ate! Susan is lactose intolerant (乳糖不耐受的), and eating too many dairy foods can make her feel really sick.

    Lactose intolerance means that the body can't easily digest (消化) a special sugar called lactose. Unfortunately for Susan and millions of other people with this problem, lactose is found in almost all dairy products — cheese, milk and ice cream.

    Our body uses lactase (乳糖酵素) to break lactose into a simpler form of sugar. Once lactose is broken down, it's easy to digest and it provides great energy for the body. But people like Susan don't have enough lactase to break down all the lactose they take in. So, about half an hour to two hours after eating dairy­rich foods, their stomachs begin to hurt and they have gas, making their stomachs get bigger. Sometimes they even get diarrhea (腹泻) when they eat too many dairy foods.

    So how can someone living with this problem still eat out with his or her friends? Here are some tips. If you're going to eat a dairy­rich food like ice cream, eat something that doesn't have any dairy with it, like a salad or a sandwich without cheese. This will help slow digestion, and your body will have time to create more lactase.

(1)、What can cause lactose intolerance?
A、A shortage of lactose. B、Eating too little sugar. C、Slow digestion of dairy products. D、Poor digestion of any food you eat.
(2)、What do we know about lactose?
A、It is found in almost all foods. B、It is very necessary for the body. C、It is hard for some people to break down. D、It changes its form once it is in the body.
(3)、What is a result of lactose intolerance?
A、The headache. B、The stomachache. C、The feeling of hunger. D、The feeling of tiredness.
(4)、What would be the best advice for Susan?
A、Enjoy eating dairy­rich foods. B、Avoid eating out with her friends. C、Take digestion pills to speed up digestion. D、Eat dairy­free and diary­rich foods together.
举一反三
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    He may not have an "S" across his chest but this dog is most certainly a hero.

    Harley, who was rescued from a puppy mill four years ago, was named the American Humane Association's 2015 American Hero Dog. Harley, who is missing an eye and has other medical issues from his time at the mill, is now a "spokes-dog" against puppy mills. He serves as the adorable furry face of the "Harley to the Rescue" campaign, which raises funds for the National Dog Mill Rescue, according to a press release.

    The pup was rescued back in 2011 and adopted by Rudi and her husband, Dan. "It was just four years ago that he was pulled from the cage in the puppy mill and left to die," Harley's owner, Rudi, said during the awards show at the Beverly Hilton Hotel in Los Angeles this past weekend, according to Today. com. "We never would have ever thought he would live this long and make such a difference for so many puppies."

    The dog was one of eight finalists up for the American Hero Dog and was chosen as the winner through public votes. The finalists all won $ 1,500 to be donated to one of American Humane Association's charity partners, with Harley receiving another $ 5, 000 to go toward his charity partner, New Leash On Life.

    According to the release, Harley spent 10 years at the puppy mill, and endured rough treatment there, which led to his many medical issues. He lost his eye as a result of his cage being power-washed with him inside.

    The dog isn't just the face of his campaign, he also goes on rescue missions and makes public appearances at events and schools to raise awareness for puppy mills.

    This incredible work is all due to the dog's fighting spirit. That spirit is allowing him now to be the voice for dogs who cannot speak for themselves and give everybody hope that tomorrow's going to be a better day.

阅读理解

    Teenagers enter their adolescent years with a mixture of optimism, excitement and anxiety. Adolescence is a time when boys and girls begin to show greater independence from their parents. It is also a time when young people begin to develop the sense of individuality that will help shape their future identity as adults. In fact, showing independence and forming a unique identity are two of the most important developmental tasks that adolescents must finish in preparation for satisfying and productive adult lives.

    It is not easy for parents or teenagers to go smoothly through this period. Adolescents want to be independent of their parents and make their own decisions. They often do not recognize their need for adults' guidance and support.

    However, some parents find it easy to keep the lines of communication open with an adolescent child. These parents are often noticed by the child as stable sources of positive influence, and the teen feels supported in his or her growing independence. Communication in such families characterized by mutual(互 相的) respect and the ability to freely exchange feelings and ideas. Parents who understand their teenager's need for a reasonable measure of independence and individuality encourage their child's growth and achievements. This positive interest strengthens parent-child relationships. When adolescents receive parental approval and believe that parents really value their accomplishments, it creates a willingness to share other information about themselves.

    Many parents find it difficult to have open communication with their child during the adolescent years. Some parents have difficulty understanding the changes their teenager is experiencing and pay little attention to his or her need to pull away from the family and make independent decisions. At the same time, some teenagers are so self-focused that they do not appreciate or accept their parents' concern, and they are against all parental authority. In this case, frequent arguments may develop, and family life may become difficult. Parents and teenagers may separate from one another to avoid arguments, but this is usually a short-term solution that does not clear up the main problems.

    A major long-term method is to help them develop more effective communication. This enables the family members to end their conflicts(矛盾) and to establish more harmonious and more satisfying relationships.

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    Elephants might be the most well-known and well-loved animal in African wildlife. But conservation (保护) of the African elephant still faces special difficulties. While the elephant population is half of what it was 40 years ago, some areas of Africa have more elephants than populated areas can support. That's why AWF scientists are studying elephant behavior, protecting habitats and finding ways for humans to live peacefully with elephants in Africa.

    Years ago, overhunting and the ivory trade were the biggest threats to elephants' survival. Luckily, ivory bans (禁令), hunting rules and protected areas protect elephants from these dangers today.

    The 21st century brings a different challenge to elephant conservation—land-use. Elephants walk across borders and outside parks and other protected areas. So they often destroy crops, causing conflicts (冲突) between local farmers and these big animals.

    Successful conservation strategies must allow elephants to walk freely in their natural habitats while reducing conflicts between elephants and local people.

    AWF researchers are searching for a way to give both elephants and people the space they need. The AWF is collecting information on elephant habitats and behavior. The information they gather will help to develop the widest possible space for elephants.

    The AWF is helping elephants by protecting their habitats. And they also work with local farmers to improve their life in order to encourage them to protect rather than destroy elephants.

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 阅读下列短文,从每题所给的A、B、C 和 D 四个选项中,选出最佳答案。

We can create learning moments that students remember forever if we open up our classrooms to awe and wonder. 

Toward the end of my high school year, our Spanish teacher organized a trip to see an Andean band perform in Philadelphia. My classmates and I egged one another on ironically(讽刺地):Who could enjoy the show? The performers' clothing seemed odd. The instruments, strange. But then the performers kicked in, dancing to their bombo and wancara drums around the stage and the panpipes and quena announced a kind of sound—new to us. 

We had spent too little time discussing the culture of the Inca in social studies but its traditions came alive for us that evening. Once the wonderful performance lit up the stage and the hall filled up with music, my teenage cynicism disappeared. I rose out of my chair to dance with honest joy. 

I have spent the last seven years living and working in South America. But my thirst for cultural exploration and a desire to understand the world outside my language and country has been alive longer than that. Sometimes I think that night dancing to those ancient rhythms unlocked this fascination. Why do I remember it so clearly decades later?

In his recent book Awe: The New Science of Everyday Wonder and How It Can Transform Your Life, psychology professor Dacher Keltner explains that "brief moments of awe are as good for your mind and body as anything you might do." Besides being a memorable emotion, awe boosts curiosity, builds humility, helps with critical thinking, and makes people feel more connected. It even makes us happier. "Twenty years into teaching happiness, "Keltner writes about how to find deep happiness, "I have an answer: FIND AWF."

Moving forward, let's do our best to build instances of awe into our curriculum(课程). So when our former students approach us on the subway years later, they will recall the magical moments from their days spent in our classes. 

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