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题型:阅读理解 题类:常考题 难易度:普通

陕西省榆林市第一中学2016-2017学年高二下学期英语期末考试试卷

阅读理解

    Mya Le Thai is a scientist studying at the University of California, Irvine. She recently discovered a process that may result in batteries that last forever. Thai said she had been discouraged that the batteries for her wireless devices degrade. Over time, they fail to charge fully.

    Thai did not like to have keep her wireless laptop connected to an electrical outlet. She decided to do something about that problem.

    At first, she and her team thought about inventing a new battery. But as they experimented, Thai discovered something that might permit lithium-ion(锂离子) batteries to last forever. Lithium-ion batteries power most wireless devices. Over time, the batteries lose the ability to hold a charge. Most of these batteries have a life span of about 7,000 charging cycles before they die.

    One of the reasons lithium-ion batteries degrade is their use of nanowires(纳米线) to carry electricity. Nanowires are extremely thin. A human hair is thousands of times thicker, for example. Nanowires are extremely efficient carriers of electricity, which makes them useful in batteries. But Thai said their thinness also makes them weak. "Nanowires break over time," she said. "That's why they lose capacity."

    But, Thai had a theory: The nanowires might last longer if covered with a material. She and the team tested her theory. The team tried many coverings for the wires. PMMA was one of them. The nanowires were coated with PMMA and cycled through charges 200,000 times. The PMMA coated nanowires showed no evidence of damage. The results suggest that batteries could last forever, without losing charging ability.

    Thai hopes to continue her research to understand why this material works so well and to see if any other material could create better results.

"It's kind of cool," she said. "I'm really glad people are showing interest in my work and not just in the work itself, but also in technology and energy."

(1)、What caused Thai to do research on the batteries?
A、Weak power of the batteries B、Her preference for batteries C、Inconvenient use of batteries D、Her habit to use her computer
(2)、What's the disadvantage of lithium-ion batteries?
A、They have a certain service life B、They need charging very often C、They are not quite dependable D、They are easy to break down
(3)、Why did Thai try covering the nanowires with a certain material?
A、To make them thicker B、To carry more electricity C、To make them safer to use D、To protect them from being damaged
(4)、What can be a suitable title for the text?
A、All Batteries Would Be Replaced By Long-Last Ones B、Lithium-ion Batteries Might Come to an End C、Batteries That Last Forever Could Be Near D、Batteries Would Work Without Recharging
举一反三
根据短文理解,选择正确答案。

    The Kentucky Derby is a horse race held annually in Louisville, Kentucky, United States on the first Saturday in May. Here are some helpful suggestions for your first trip to the Kentucky Derby!

Fashion vs. Comfort

    In many ways, the Kentucky Derby is the world's largest and most entertaining fashion show, with impressive hats and clothes! You'll be on your feet and walking a lot, so pack a pair of comfortable shoes to change into during the day.

Your Tickets

    You MUST have your tickets in order to get through the gates. Please note that the only place that has official permission to buy and resell Kentucky Derby tickets is the Kentucky Derby Ticket Exchange. Law enforcement officials will be on site to prevent people from selling tickets at a much higher price.

    If you have questions about your tickets in advance of the Derby, please call Churchill Downs customer service at 502-636-4400.

Finding Help

    With over 14,000 employees throughout the track on Derby day, you aren't too far from someone who can help. If you can't find an employee to help you, please text the word HORSE to 69050 and you will be placed in touch with Guest Services.

Safety & Security

    For the safety of all our guests, your bag may be searched by security. A number of items are forbidden from entering the facility(场所).

    For security and crowd control reasons, you can't enter the facility again after you get out. This means that you will not be able to go outside the gates to fetch items from your car once you have passed through security. Please be sure to bring everything you need.

任务型阅读

    With the development of modern science and technology, the functions of cellphones have changed greatly. {#blank#}1{#/blank#}The only difference may be that they fit in your pocket and you pay by the minute to use them. Some of the things a cellphone can do for you will be available this year:

Surf at speed

    Cellphones that let you use the Web have been around for years. So, what's new? Well ,  faster third-generation (3G)  networks that let you surf at anywhere. {#blank#}2{#/blank#}Possible choices are from IJG Electronics VX 8000 and Motorola V1150.Listen as you go.

    {#blank#}3{#/blank#} There is no doubt that it is about to change. Sony Ericsson's new W8001 can hold around 150 songs in its 500 MB memory. And Samsung's SPH-V5400 even comes with a l. 5 GB hard drive. Mobile phones may eventually replace miniMP3 players, especially for teens. Say cheese.

    Camera cellphones are not new either but most of them have limitations: around l- megapixel  (百万像素 ) .  However new technology has made 2-megapixel units more common ,and 3-megapixel units are showing up soon. Some 2-megapixel models, like Sony Ericsson's K7501, offer limited zoom and focus controls.   {#blank#}4{#/blank#}Portable TV.

    You say you like "watching TV"? That's what Samsung MMA700 wants to give you. The new model lets users watch popular TV programmes~ for a fee. Other choices are Nokia's 6620, Sanyo's MM740 and NEC's N940. {#blank#}5{#/blank#}

    The above are just a handful of what you ' ll see in the coming months.  Further down the road, your mobile phone may play a host of other roles, such as mobile credit card, position locator and so on. So what is there that a cellphone can't do?

A. The NEC model lets you watch public TV - no fee.

B. Without a cellphone, you can do nothing in your daily life.

C. Nowadays, new cellphones are much cheaper than old ones.

D. Today's do-it-all mobiles have a lot in common with the computer.

E. This then allows a carrier to send video, music, and games to your phone.

F. Others, like LG's recent A7110, can even capture 30 minutes of full-motion video.

G. The problem with most cellphone MP3 players is that they hold only a handful of songs.

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

    Studies have shown most people fail to realize how much time they spend on their smart­phones each day.

    Frank and Amelia's family were put to a test, using a free app called "Moment­screen Time Tracker". The Vascellaros—Frank, Amelia, 14­year­old twins Frankie and Joe, and 17­year­old Sam—all said they did not really know they were spending so much time on their phones each day.

    "Honestly, I don't feel like I'm on my phone a lot," Amelia Vascellaro said. Amelia was on her phone far less often than Frank, according to the app. While Amelia spent about an hour per day on the phone, Frank spent close to four hours on his phone—which came as a shock to him. The children's times varied but they often spent more than a couple of hours on the phone as well.

    Minneapolis­based Dr Kirsten Lind Seal sees phone usage come up a lot among families. Lind Seal said many family members' phone use has become problematic.

    "If we hear more than once, 'Do you have to be on your phone right now? Can you please put your phone down? Did you hear what I said?' it may be a sign that it is negatively influencing our family relationships and our daily lives," she said.

    Lind Seal said actually paying attention to how much time one spends on the phone is a good first step in deciding when to put it down.

    She asks parents to encourage more face­to­face communication for teens and young adults as they continue developing their social and emotional skills. "What we find is that we are really losing out on empathy—the ability to understand other people's feelings and problems——when we spend a lot of time on our smart­phones to communicate with other people she said.

阅读理解

Gemini Man

    Gemini Man is a big-budget Hollywood sci-fi-action movie based on an original concept, rather than on a superhero comic or an old TV series, even though this particular original concept is more 20 years old. In it a government assassin (杀手)is being hunted down by his own clone The original script was sold by Darren Lemke to a studio in 1997, and since then almost every male A-listener has been attached as a potential star. Now, at long last, Ang Lee has directed Gemini Man, and Will Smith plays both the veteran assassin and his much younger doppelganger (分身).

Jojo Rabbit

    During World War Two, a 10-year-old German boy (Roman Griffin David) is desperate to be a dutiful Nazi, only to discover that his mother (Scarlett Johansson) is hiding, a Jewish girl (Thomasin McKenzie) in their house. It may not sound like the stuff of a big-hearted comedy but Taika Waititi can make anything warm and funny. As well as writing and directing Jojo Rabbit, Waititi co-stars as the boy's imaginary friend,a nitwitted Adolf Hitler.

Doctor Sleep

    Mike Flanag's new film is adapted from Stephen King, novel, Doctor Sleep, which was a sequel (续集) to The Shining. You can expect to see blood flowing out of lifts in a rapid stream, ghostly twin girls and headache-including carpet patterns. Ewan McGregor stars as Danny Torrance, the boy with psychic powers m 1980 film. Now, he is a middle-aged hospital counsellor.

Maleficent: Mistress of Evil

    Here's another chance to see Angelina Jolie. In 2014 she starred in Maleficent, Disney's live-action remake of the Sleeping Beauty cartoon from 1959. The twist was that the eponymous wicked fairy wasn't so wicked, after all, and that the real villain was the father of Princess Aurora (Elle Fanning). The sequel's subtitle promises that Maleficent will actually be evil this time around, her change of heart prompted by Aurora's engagement to handsome prince (Harris Dickinson).

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