试题

试题 试卷

logo

题型:阅读理解 题类:常考题 难易度:困难

天津市南开区2020-2021学年高三上学期英语期末考试试卷

阅读理解

    The Milky Way is full of habitable (宜居) places, with roughly half of all sunlike stars hosting Earth-size worlds that could be friendly to life.

    Here's a good sign for alien hunters: More than 300 million worlds with similar conditions to Earth are spread throughout the Milky Way galaxy. A new analysis concludes that roughly half of the galaxy's sunlike stars host rocky worlds in habitable zones where liquid water could pool or flow over the planets' surfaces.

    Astronomers estimated the number of these planets using data from NASA's planet-hunting Kepler spacecraft. For nine years, Kepler stared at the stars and watched for the brief twinkles produced when orbiting planets block a portion of their star's light. By the end of its mission in 2018, Kepler had spotted some 2,800 exoplanets (外星行星) — many of them nothing like the worlds orbiting our sun.

    But Kepler's primary goal was always to determine how common planets like Earth are. The calculation required help from the European Space Agency's Gaia spacecraft, which monitors stars across the galaxy. With Gaia's observations in hand, scientists were finally able to determine that the Milky Way is populated by hundreds of millions of Earth-size planets orbiting sunlike stars — and that the nearest one is probably within 20 light-years of the solar system.

    It took more than half a century for scientists to start pinning down how many planets could possibly host life. In 1961, astronomers knew of no worlds orbiting stars other than the sun — and although planetary formation theories suggested exoplanets should be common, we had no observational evidence that they existed. But over the past decade, it's become clear that planets are extremely common, outnumbering stars in the Milky Way. On average, nearly every star is home to at least one orbiting world.

    Early estimates suggested that perhaps 20 percent of sunlike stars hosted a world that met those criteria. We now know that the number is closer to 50 percent, if not more.

    Of course, many factors determine whether a world in the habitable zone is truly friendly for life. Planetary characteristics such as magnetic fields, atmospheres, and plate tectonics all play a role, and those are difficult to observe on small, faraway worlds.

(1)、When the author says, "Here's a good sign for alien hunters", he probably means____.
A、that's good news for hunters B、we will find aliens soon C、there is a clear signal from alien D、many sunlike stars have been found that may be habitable
(2)、How did Kepler work to find exoplanets?
A、By observing the brief flicker that occurs when orbiting planets block some of the star's light. B、By using the data from the European Space Agency's Gaia spacecraft. C、By calculating the stars in the galaxy. D、Through its own calculation.
(3)、What can we infer from paragraph 4?
A、Kepler's primary goal was to make sure that the Earth is a common planet. B、Kepler helped Gaia to calculate the planets. C、Gaia is only 20 light-years away from the solar system. D、Kepler monitors stars across the Milky Way.
(4)、What does paragraph 5 mainly talk about?
A、The importance of planetary formation theories. B、Exoplanets are common. C、Scientists spent more than half a century to find out how many planets host life. D、Astronomers have known of no worlds orbiting stars other than the sun since 1961.
(5)、Many factors determine whether a world in the habitable zone is truly friendly for life EXCEPT____.
A、oxygen B、atmospheres C、magnetic fields D、plate tectonics
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

    Save Your Time, Money and Stress with Savvy (懂行,悟性)Rental Car Strategies

    Renting a car can be expensive, confusing, and stressful — but it doesn't have to be. Here are several helpful strategies to save money, time, and stress on your next (and every) car rental.

Sign Up for Loyalty Programs

    Rental car loyalty programs are free to join, so register for any programs you might use in the future. My favorite car rental loyalty program benefit is that I can skip the counter and head right to my reserved car. Some programs allow members to choose a car from the available pool. {#blank#}1{#/blank#}

Optimize Your Strategy

    Do you really need a rental car from the airport? For instance, if your flight arrives at night, take a free hotel shuttle and pick up your car the next day. The car rental location might even be at your hotel or can pick you up (or deliver the car to you).{#blank#}2{#/blank#}

{#blank#}3{#/blank#}

    For a city trip, you may not even need a rental car. Research whether mass transit(运输), taxi, Uber, bike rental, and other transportation methods will suffice(足够). Parking charges at downtown hotels may cost more than your car rental rate, so it may be doubly in your favor to give up a rental car. In some locations, a bike might be more efficient and economical than a car.

 Search for Specials

    {#blank#}4{#/blank#} In conjunction(结合)with your personal discount code, you may also find a last-minute rate, free rental day, or other promotion. My favorite annual travel deal is driving a car one-way out of Florida after Spring Break with rates as low as $1 per day.

Consider Alternative Rental Options

    Major car rental companies might have an associated discount brand at your rental location, like Firefly for Hertz.{#blank#}5{#/blank#} 

    An independent or smaller local agency may fit your needs; like A1 or Lucky Owl in Honolulu. Many people prefer to check rates on Hotwire and Priceline, especially for last-minute rentals.

A.Rental rates are likely lower away from the airport, plus you might save the cost of an entire rental day.

B.I use discount-finding websites to track my car reservations.

C.Smaller brands, like Thrifty and Fox, might offer better service and lower rates.

D.In addition to saving time and offering freedom of choice, loyalty members earn points and receive special promotions.

E.Check car rental company websites for current specials.

F.Skip the Car

G.Use a bike

阅读理解

Discovery's astronauts arrived to an exciting celebration Wednesday as nearly 700 people crowded an airplane storage place, waving flags and holding signs that read: “Welcome Home, Astronauts!”

    The seven-person team returned to Earth on Tuesday after being the first to take a space shuttle into orbit since the Columbia disaster(灾难)of 2003. 

    “In the last two and a half years, we have been through the very worst that manned space flight can bring us, and over the past two weeks we have seen the very best,” NASA Administrator Michael Griffin told the astronauts and their families and fans Wednesday. 

    The crowd waved American flags for the U.S. astronauts and Japanese flags for crew member Soichi Noguchi, one of the spacewalkers. 

    “As a rookie(新手)astronaut, I could not ask for more,” Noguchi said, “We had three spacewalks, two extra days in space and one great team.” 

    While the homecoming has been filled with excitement for what mission controllers declared a “truly spectacular test flight”, uncertainty remains for the future of the shuttle program. 

    Shortly after Discovery rose up into space July 26, a nearly 1-pound large piece of foam insulation(泡沫绝缘材料)fell from the fuel tank-the very thing that was supposed to have been fixed after Columbia exploded. The foam missed Discovery, but NASA grounded all shuttle flights until engineers fix the problem.

    NASA ground crews examined Discovery after its return from orbit and found it in good condition, an official said Wednesday at NASA‟s Dryden Flight Research Center at Edwards Air Force Base in California. 

    Technicians counted 101 dings and divots, including 20 that were larger than 1 inch. Schaaf Dean, landing support group chief, said the numbers were similar to the results of other shuttle, post-landing examinations. 

A beginning examination of the shuttle's thermal(热的)blanket showed it remained undamaged during re-en-try into the Earth's air.(Agencies)

阅读理解

    If you're dreaming of visiting one of those picture-perfect European towns filled with old-world attractiveness and scenic beauty, here is a look at the most beautiful small towns in Europe.

    Manarola

    Manarola, Italy, is filled with rainbow-colored homes carved right into a wall of stone along the Mediterranean coast. This charming fishing town is famous for its unbelievable wine, and the paintings. There are no cars here, no traffic lights, or traffic noise. You can drive to Manarola, but you'll have to park just outside the town and then take a shuttle bus or walk in on foot.

    Garmisch-Partenkirchen

    Garmisch-Partenkirchen, Germany, is a fascinating mountain town. Once two separate towns, one Roman and the other Teutonic, the 1936 Winter Olympics forced them to combine, though the two sides still have different characters. The town dates back to 15 AD, filled with narrow, cobblestoned streets lined with historic three or four-story buildings painted with regional and religious scenes.

    Marsaxlokk

    The energetic trading port of Marsaxlokk, Malta, was built in 900 BC. Today, this pictures-like town is the main supplier of fish to the island nation that sits in the Mediterranean Sea. It has no modern buildings to ruin its appeal. With such quiet surroundings, including the traditional luzzu's (fishing boats), it's a particularly charming place to visit.

    Portmagee, Ireland

    In a country filled with beautiful towns, Portmagee, is a standout, sitting on the southwest coast of Ireland. This postcard-perfect seaside fishing town has a row of brightly colored buildings along with a rich and colorful history. At The Bridge Bar, you'll find live music many nights of the week along with fantastic food and a fine glass of beer.

阅读理解

    The Marches were a happy family, Poverty, hard work, and even the fact that Father March was away with the Union armies could not down the spirits of Meg, Jo, Beth, Amy, and Marmee, as the March girls called their mother.

    The March sisters tried to be good but had their share of faults. Pretty Meg was often displeased with the schoolchildren she taught; boyish Jo was easy to become angry; golden-haired schoolgirl Amy liked to show up; but Beth, who kept the house, was loving and gentle always.

    The happy days passed and darkness came when a telegram arrived for Mrs. March. “Your husband is very ill,” it said, “come at once.” The girl tried to be brave when their mother left for the front. They waited and prayed. Little Beth got scarlet fever (猩红热) when she was taking care of the sick neighbor. She became very ill but began to recover by the time Marmee was back. When Father came home from the front and at that joyful Christmas dinner they were once more all together.

    Three years later the March girls had grown into young womanhood. Meg became Mrs. Brooke, and after a few family troubles got used to her new state happily. Jo had found pleasure in her literary efforts. Amy had grown into a young lady with a talent for design and an even greater one for society. But Beth had never fully regained her health, and her family watched her with love and anxiety.

    Amy was asked to go and stay in Europe with a relative of the Marches'. Jo went to New York and became successful in her writing and had the satisfaction of seeing her work published there. But at home the bitterest blow was yet to fall Beth had known for some time that she couldn't live much longer to be with the family and in the spring time she died.

    News came from Europe that Amy and Laurie, the grandson of a wealthy neighbor, had planned to be married soon. Now Jo became ever more successful in her writing and got married to Professor Bhaer and soon afterwards founded a school for boys.

    And so the little women had grown up and lived happily with their children, enjoying the harvest of love and goodness that they had devoted all their lives to.

返回首页

试题篮