试题

试题 试卷

logo

题型:阅读理解 题类:常考题 难易度:普通

2016-2017学年河北省唐山市第一中学高二下学期期中考试英语试卷

阅读理解

    Hummingbirds(蜂鸟) are one of nature's most energetic fliers and the only birds to hover(盘旋) in the air by relying on their strength alone.

    Now scientists have found that it is the ratio(比值) of the bird's wing length to its width that makes them so efficient. The discovery is helping experts compete with 42 million years of natural selection to build helicopters that are increasingly efficient.

    David Lentink, an assistant professor at Stanford University in California, tested wings from 12 different species of hummingbirds, which he sourced from museums. He placed them on a machine used to test the aerodynamics(气力学) of the helicopter blades(桨叶). Professor Lentink's team used the same machine to test the blades from an advanced micro-helicopter used by the UK's army. They found that the micro-helicopter's blades are as efficient at hovering as the average hummingbirds.

    But while the micro-helicopter's blades kept pace with the average hummingbird wings, they could not keep up with the most efficient hummingbird's wing. The wings of Anna's hummingbird were found to be about 27 percent more efficient than the man-made micro- helicopter's blades.

    While Professor Lentink wasn't surprised at nature's superiority, he said that helicopter blades have come a long way. “The technology is at the level of an average hummingbird,” he said. “A helicopter is really the most efficient hovering device that we can build. The best hummingbirds are still better, but I think it's amazing that we're getting closer. It's not easy to match their performance, but if we build better wings with better shapes, we might match hummingbirds.”

    Professor Lentink said that we don't know how hummingbirds maintain their flight in a strong wind, how they navigate(确定方向) through branches, or how they change direction so quickly. He thinks that great steps could be made by studying wing aspect ratios-the ratio of wing length to wing width. Understanding these abilities and characteristics could be a benefit for robotics and will be the focus of future experiments.

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。

(1)、What did the scientists find about hummingbirds?

A、Their wings are long and wide B、They can hover in the air for a long time C、The ratio of their wing length to wing width is very important D、They are the most energetic flier in nature
(2)、Which is the right order of Professor Lentink's research?

①Tested wings from different species of hummingbirds

②Got resources from museums

③Analyzed the results and drew a conclusion

④Tested the blades from a micro-helicopter

A、①②③④ B、②①③④ C、②④①③ D、②①④③
(3)、According to Professor Lentink, what will be the focus of future experiments?

A、To know how hummingbirds can fly in a strong wind B、To know how hummingbirds change direction so quickly C、To develop a new kind of helicopter D、To study the secrets of hummingbirds
举一反三
任务型阅读

    Everyone wants to be happy, but not everyone can make it. Do you want to have a good mood every day? If so, the following steps will be useful to you.

    Be grateful.

{#blank#}1{#/blank#} They can be simple things like the purple flower on the sidewalk, the beautiful sunset, and the hot shower you take every day. When you have a grateful heart, you'll cherish them and be naturally filled with happiness.

   {#blank#}2{#/blank#}

When you put your mind, heart and soul into what you're doing, you're creating a happiness state—called the "flow". When you're living in the flow, you're less likely to mind what others may think about you, and less bothered by unimportant things. The result? More happiness, of course!

    Become a problem solver.

Happy people are problem solvers.{#blank#}3{#/blank#}Instead, they face up to the challenge and channel their energies into finding a creative solution. By becoming a problem solver, you'll build up your self-confidence and your ability to accomplish whatever you determine to do.

    Practice forgiveness.

Hatred and anger are forms of self-punishment. When you forgive, you're actually practicing kindness to yourself.

{#blank#}4{#/blank#} Everyone makes mistakes. It's through our mistakes that we learn and grow to become a bigger and better person.

Give back.

    Doing good is one of the surest ways to feel good. According to Harvard, when people do good, their brains become active in the very same reward center that is stimulated when they experience other rewards. {#blank#}5{#/blank#}

A. Go with the flow.

B. Focus on what you are doing.

C. And most importantly, learn to forgive yourself.

D. When they face a challenge in life, they don't fall into a sad state.

E. When they meet with difficulties, they will solve them on their own.

F. So It's not a surprise that people who care more about others are happier.

G. Slow down, look around, and pay attention to the little details in your life.

阅读理解

    The sixth mass extinction of life on the Earth is unfolding more quickly than feared, scientists have warned. More than 30 percent of animals with a backbone — fish, birds, amphibians, reptiles and mammals — are declining in both range and population, according to the first comprehensive analysis of these trends.

    Around a decade ago, experts feared that a new range wipeout of species was appearing. Today, most agree that it is underway — but the new study suggests that the die-out is already growing fast.

    The loss of biodiversity has recently accelerated. Several species of mammals that were relatively safe one or two decades ago are now endangered, including cheetahs, lions and giraffes, the study showed.

    There is no mystery as to why: our own ever-expanding species — which has more than doubled in number since 1960 to 7.4 billion — is eating, crowding and polluting its planetary cohabitants out of existence. By comparison, there are as few as 20,000 lions left in the wild, less than 7,000 cheetahs, 500 to 1,000 giant pandas.

    The main drivers of wildlife decline are habitat loss, over-consumption, pollution, other species, disease, as well as hunting in the case of tigers, elephants, rhinos and other large animals prized for their body parts.

    Climate change is thought to become a major threat in the coming decades, with some animals — most famously polar bears — already in decline due to rising temperatures and changing weather patterns.

阅读理解

    Do you find it difficult to put down your mobile phone?

    If yes, you're not alone. These days, many people suffer from the stress of FOMO (fear of missing out). They reach for their mobile phones when they wake up in the morning, and for the rest of the day, they constantly scroll down (向下滚动) the timelines of their social media apps to get the latest updates.

    Despite the convenience smartphones bring, many people struggle with their digital habits.

    As Sameer Samat, US tech Company Google's vice president of product management, said in his speech at the 2018 Google I/O developer conference on May 8, 70 percent of people don't want to spend so much time on their phones.

    This is why during the conference Google introduced an app called Dashboard for the new version (版本) of its Android operating system. This new app includes well-being functions that aim to help users manage the time they spend on their digital devices.

    It all starts with a bird's-eye view. Dashboard allows users to look at all the details of their phone habits. For example, a user can see how many times they've unlocked their phone and how many times they've checked their social media apps, as well as how much time they spend on each app every day.

    Once the users see this information, they'll be able to make some changes. With the App Timer function, users can set a time limit for how long they can use each app for every day. After they've hit the limit, they won't be able to launch the app until the next day.

    But even if users become more mindful of their usage, they're still likely to be drawn in by notifications (通知). This is where the Shush feature comes in. It automatically (自动地) silences incoming calls and notifications when a user puts their phone face down.

    If people truly want to make full use of their free time instead of losing hours using their smart phones, these new functions are just one way of doing that.

After all, who needs to use an app to stop you from using other apps when the easiest answer would be just to use your willpower?

阅读理解

    Can you imagine a world without music? Studies show that public schools across the country are cutting back on music classes to save money. Even worse, some schools have never had music classes to begin with. But without them, students' academic (学术的) growth and spiritual health could suffer. In fact, music classes are necessary for all students in schools.

    Recent studies Brown University have shown that students who received music education classes were better in math and reading skills than those without music classes. Another study by The College Board found that students taking music and art classes got higher points. Students' academic success seems to depend on their taking part in music education.

    Music programs in public schools also help to add to a student's sense of pride and self-confidence. Teens today have too many learning tasks. Besides, they have family problems, self-confidence problems, relations hip troubles, and choices about smoke and alcohol (酒精). All of these can stop academic success, but music education can help. A study by The Texas Commission on Drug and Alcohol Abuse found that students who took part in school music programs were less likely to turn to smoke. Music programs encourage students to work together to produce an excellent performance.

    Music crosses language, class and culture. Music allows students from different countries to connect. For example, at a school talent show, a new Japanese student played a piano duet (二重奏) with an American classmate. Two students from different cultures worked as a team with self-confidence and common purpose through music.

    The gift of music is priceless. We need to be sure to have necessary music classes for all students. The world is losing its music, and putting music into schools is the first step to get it back.

阅读理解

    A Christmas Carol was written by Charles Dickens. The first 6,000 copies of the book were sold out in a week. And the book has inspired many plays and movies. The first play was put on in 1844. The first two movies were silent films made in 1901 and 1908. Since then, the story has been remade more than 60 times for television and cinema. What makes such a tale so attractive? Audiences have always loved a good plot, a villain(反面人物)who harms other people or breaks the law, and the ending of right over wrong. The book offers all three.

    The book tells the story of a man named Ebenezer Scrooge. He is mean and cruel(残忍的)to his clerk and turns away his only living relative. One night, Scrooge is visited by three spirits. The first shows scenes from Scrooge's youth that led to this present state. The second takes him to the homes of his clerk and his nephew. Here Scrooge sees that people can be happy without lots of money. The spirit also shows him the desperate poor people of London. The third spirit shows Scrooge will die alone, and no one will care if he continues to live as he has. At last the message is understood, and Scrooge repents. He becomes generous and caring to all around him, especially to his clerk's sick son, Tiny Tim.

    Every year, thousands of people watch A Christmas Carol. Why? They may be touched by its lessons on the true meanings of wealth and happiness. They may enjoy the special effects and feelings or watching every year may be just a habit. Viewers never seem to grow tired of the old miser(守财奴), Scrooge, and his dramatic message of hope and change.

返回首页

试题篮