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题型:阅读理解 题类:常考题 难易度:普通

山西省太原市2020届高三上学期英语期末考试试卷

阅读理解

    A population of the world's most aggressive mosquito species was almost completely wiped out by an experiment on two islands in the southern Chinese province of Guangdong, according to a study published.

    The experiment successfully reduced the female Asian Tiger Mosquito population — the main source of bites and disease spread — by up to 94%, reducing the number of reported human bites by 97%.

    One of the Chinese study's researchers, Xi Zhiyong, a professor at Michigan State University, has been a longtime pioneer in this field of study. Running a mosquito factory in southern China, he previously attempted to use sterilized male mosquitoes to mate with unaltered females which developed normally. In the new study, published by the International Journal of Science, Xi and his colleagues attempted to cut mosquito numbers even further by limiting both males and females' ability to reproduce. The results were so successful that they nearly killed the entire female mosquito population on the two islands.

    It isn't the first attempt by researchers to reduce mosquito populations across the world. In 2018, scientists from the Imperial College of London used gene-editing tools to make female mosquitoes sterile, while males developed normally and continued spreading the genetic mutation (突变).Experts said the Asian Tiger Mosquitoes are particularly hard to kill using traditional population control methods, such as pesticides (杀虫剂) and removing stagnant (不流动的) water where the insects lay their eggs.

    Mosquitoes create grave threats to human health beyond just bites. The World Health Organization (WHO) has described the insects as "one of the deadliest animals in the world," due to their ability to rapidly spread deadly diseases such as dengue fever and malaria. There is currently no effective vaccine or treatment for most mosquito-spread diseases, leaving controlling the insects' populations one of the most effective control methods, according to the International Journal of Science. “A new tool like what's being described in this paper is very much needed” said Stephen Dobson, a professor of medical insectology at University of Kentucky.

(1)、What does the underlined word "unaltered" in paragraph 3 refer to?
A、Unchanged. B、Undivided. C、Unadopted. D、Unfinished.
(2)、Why do mosquito populations have to be controlled?
A、Mosquitoes cause genetic changes in humans. B、Mosquitoes spread some deadliest diseases. C、Mosquitoes limit people's ability to reproduce. D、Mosquitoes make traditional vaccines ineffective.
(3)、What has been the most successful way of reducing mosquito numbers?
A、Editing genes in female mosquitoes. B、Sterilizing male mosquitoes before mating. C、Limiting both genders' reproduction ability. D、Using pesticides and removing stagnant water.
(4)、What can we learn from Stephen Dobson's words?
A、The things described in this paper are not practical. B、A better way of mosquito control is yet to be found. C、Xi Zhiyong's method has proven to be very effective. D、A new tool is needed in order to improve Xi's research.
举一反三
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。

    Getting your children to study can be a little like getting them to eat their vegetables.

    {#blank#}1{#/blank#} Make a study time and have it at the same time every day. This will help your kids to learn to schedule their day and will give them a sense of control over how they spend their time.

    Allow them to study in blocks of time,such as for half an hour with a five­minute break in the middle. {#blank#}2{#/blank#} Ideal(理想的) study times are after dinner or right after school before dinner.

    Never allow your children to study in front of the television,for that will encourage passive activity.{#blank#}3{#/blank#}

    You'll also need to help your kids find the right place to study. After you've set up a good study time for little learners,set up a good place where they can get those creative juices flowing.

    {#blank#}4{#/blank#}Make sure there is a table or a desk and a comfortable chair at this place.

    {#blank#}5{#/blank#} This includes helping them out with their homework sometimes and being there for them with the answers to any questions. The input you give your children during study periods will help form a bond and help make studying enjoyable.

A. Pick a place where your children can study properly.

B. Hold them to the schedule they create for themselves.

C. Finally,spend time with your kids when they're studying.

D. Keep the atmosphere light and offer lots of encouragement,too.

E. Instead,use TV as a treat or a reward when the homework is completed.

F. Try to stop this bad habit by offering some sort of reward.

G. One of the best ways to form good study habits for your kids is to design a schedule that they keep to.

阅读理解

    More cycling, better public transport and car bans… Places all over the world are taking a range of measures to lower traffic pollution.

Paris

    Paris bans cars in many historic central districts on weekends, places odd-even(单双日制的) bans on vehicles, makes public transport free during major pollution events and encourages car-sharing programs. A long section of the right bank of the river. Seine is now car-free and a monthly ban on cars has come into force along the Champs-Elysees.

The Netherlands

    Politicians want to ban the sale of all petrol cars from 2025, allowing only electric of hydrogen vehicles. The new law will allow anyone who already owns a petrol car to continue using it. Most cities encourage bicycle use.

Freiburg

    Freiburg in Germany has 500km of bike routes and a cheap and efficient public transport system. One town, Vauban, forbids people to park near homes and makes car-owners pay 18,000 for a space on the edge of town. In return for living without a car, people are offered cheaper housing, free public transport, and plentiful bicycle spaces.

Curitiba

    The southern Brazilian city of two million people has one of the biggest and lowest-cost bus systems in the world. Nearly 70% of its people go to work by public transport and the result is pollution-free air and traffic-free streets.

Copenhagen

    Copenhagen prioritizes(优先考虑) bikes over cars and now has more cycles than people. The city calculates that one mile on a bike is worth $0.42 to society, while one mile in a car is a $0.2 loss. Large parts of the Danish capital have been closed to vehicles for decades.

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

    There are quite a few advantages of wearing school uniforms. The idea may seem disagreeable at first, but considering all the positive effects coming from wearing uniforms you would be more likely to enjoy them.

    Teachers love school uniforms because it helps provide an orderly learning environment. Having students dressed in uniforms may teach them how to present themselves in a neat and professional manner. It gives students the opportunity to learn how to dress like young ladies and gentleman. And they can focus their attention on academics rather than style.

    Purchasing(购买) school uniforms is easy and needs less hesitation and consideration. No matter what the school's policy is, there are only specific essential(基本的) pieces to the wardrobe(服装) that are necessary, so it won't break the bank. A few wardrobe items can last a long time. Parents could also enjoy an easy morning, as it will take less time to choose a set of clothes for the school day.

    Students wearing uniforms will feel less pressure about what to wear or not to wear when their classmates are dressed similarly. Getting dressed before school becomes less of a chore(琐事) when students are limited in their choices, so there shouldn't be any trouble about choosing an outfit for the day and getting ready quickly. Some students may not like the lack of individuality(个性) with a uniform, but some school dress code policies may offer them the opportunities to show their unique styles.

    Uniforms today are also becoming trendier and can be seen in many areas of pop culture. Celebrities(名人)and fashion designers are using uniforms as inspiration for new looks which also appeal to students.

阅读理解

    It was a hot day, and my brother Walt and I had decided that the only way to survive it would be to go swimming in a deep swimming hole across Mr. Blickez's Pasture(牧场)and through some woods.

    The only problem with our plan was that this pasture was guarded by a huge, mean Hereford bull(公牛). Mr. Blickez had told us that Elsie was the meanest bull in the town, maybe even in the county, and we believed him. But the hotter it got, the more we thought there was something fishy about his words. For one thing, we remembered Mr. Blickez liked telling tall tales; for another, Elsie seemed like a strange name for a bull.

    Finally, I talked Mom into asking permission for us to walk through the pasture, but then another problem surfaced. Mom said she would talk to Mr. Blickez if we would take our cousin Joanie along with us. Joanie was almost two years older than me and a head taller. If her teasing ever got around my grade school, it would be all over for me. In fact, I still had a headache from a quarrel with her that morning. “I'm not going swimming with that silly girl cousin,” I told my mom.

    “Either Joanie goes with, or you stay home alone,” Mom said in her serious tone(语气). I gave in and we set out. On your way across the pasture, Walt yelled suddenly. Elsie had approached him quietly and was licking(舔)his back. Joanie and I dove under the wire fence, but while I was on the ground I looked up and saw that Elsie wasn't a big mean bull after all. She was going to keep licking my brother's back as long as he stood still.

    We had many good days growing up and visiting our secret swimming hole guarded by the so-called “big mean bull”. And as it turned out, for a girl cousin, Joanie hasn't been too bad. She's been one of my best friends over the years.

阅读理解

    The human brain remembers negative experiences more easily than positive ones. Our brains have developed this way because threats, like dangerous animals, had a more immediate effect on our ancestors' survival compared to positive things like food or shelter. As a result, you likely know what makes you unhappy, but do you know what makes you happy?

    Research suggests that our level of happiness depends partly on factors we cannot control—our genes and our life circumstances. But our level of happiness is also shaped by the choices we make. If you've been chasing wealth, fame, good looks, material things and power, you may be looking for happiness in all the wrong places. Psychologists suggest that the following habits make people happier.

    People who form close relationships tend to be happier than those who do not. The number of friends we have is not important. What matters is the quality of our relationships. Relationships that bring happiness usually involve the sharing of feelings, mutual respect, acceptance, trust and fun.

    People who exercise regularly improve both their physical and mental well being. Some research has shown that exercise can be as effective as medication in treating depression.

    When we are so interested in an activity we enjoy that we lose track of time, we are in a state of flow. The activity could be making art, playing piano, surfing, or playing a game. People who experience flow in their work or hobbies tend to be happier.

    People are more likely to be happy if they know what their strengths are and use them regularly, People who set goals and use their strengths to achieve them tend to be happier. People are especially happy when they can use their strengths to serve the greater good.

    People who think positively by being grateful, mindful and optimistic are more likely to be happy. Being grateful means being thankful, Bejing mindful means being open to, focusing on and enjoying the experiences of the present moment. Being optimistic means being hopeful about the future.

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