题目内容

Uber (优步) is the easiest way to connect you with a driver_________ the tap of a button. In terms of price and convenience, it is second _________ none.

A. with; against B. at; to

C. through; for D. by; beyond

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Dolphins(海豚) live in a dark underwater world. It’s often impossible to see each other or anything else around them, so sound plays an important role in their survival. To communicate with each other, dolphins produce all kinds of sounds.

Only other dolphins understand what the sounds mean. Scientists haven’t uncovered their secret communication, except for one kind of whistle. It might last less than a second, but this whistle is a big deal. Why? Because these whistles are actually names of dolphins - and every dolphin has one. Scientists call these sounds a “signature whistle.” When other dolphins hear the whistle, they know which dolphin is calling.

Dolphins often hunt by themselves but still need to stay connected to the group. Since they can’t always see each other, dolphins use their signature whistles to check in with other dolphins hundreds of yards away. “In coastal areas, dolphins exchange whistles even when they’re a third of a mile apart,” says Greg Campbell, who studies animals. That means dolphins shout out to group members that might be nearly five football fields away.

What’s amazing is who names the baby dolphin. Not the mother. Not an auntie dolphin or another group member. Scientists believe the baby dolphin itself comes up with the signature whistle. Like human babies, a baby dolphin plays with sounds throughout its first year. While testing its sound skills, a baby dolphin is doing something amazing. It’s creating or figuring out its signature whistle. How or why it chooses its signature whistle is not clear. Studies show that most of the time the signature whistle is nothing like its mother’s or group members’ whistles.

When the baby dolphin is about a year old, its signature whistle is set. It repeats it often so the other dolphins learn to recognize it.

Deciphering(破译) dolphin names is just the beginning of figuring out what dolphins communicate about. Do they chat about sharks? Discuss the tides? Maybe they even have a name for people. Someday scientists are to decipher the rest of dolphins’ communication.

1.Sound is important for dolphins because of ______.

A.their poor sense of direction

B.their living environment

C.their strong enemies

D.their big groups

2.The dolphin’s signature whistle ______.

A.lasts along time

B.can travel long distances

C.is especially helpful in hunting

D.can be recognized by other animals

3.The author writes the text mainly to _____.

A.encourage readers to study dolphins

B.tell readers how dolphins communicate

C.show how lovely and clever dolphins are

D.introduce a special sound made by dolphins

4.A baby dolphin gets its name ______.

A.soon after it was born B.according to its size

C.all by itself D.with the help of its group

EACH of us fails from time to time. If we are wise, we accept these failures as a necessary part of the learning process. But all too often we convey to our children either by words or by actions that failure is something to be ashamed of, that nothing but top performance meets our approval.

Donnie was my youngest third-grader. His fear of failure kept him from classroom games that other children played excitedly. He seldom answered questions – he might be wrong. He seldom finished his work because he repeatedly checked with me to be sure he hadn’t made a mistake.

I tried my best to build his self-confidence. But nothing changed until midterm, when Mary Anne, a student teacher, was assigned to our classroom. She was young and pretty, and she loved children. My pupils, Donnie included, adored her. But even enthusiastic, loving Mary was baffled by this little boy who feared he might make a mistake.

Then one morning we were working math problems. Donnie had copied the problems with painstaking neatness and filled in answers for the first row. Pleased with his progress, I left the children with Mary. But when I returned, Donnie was in tears. He’d missed the third problem.

Mary looked at me in despair. Suddenly her face brightened. From the desk we shared, she got a canister (小筒) filled with pencils.

“Look, Donnie,” she said, “I’ve got something to show you.” She removed the pencils and placed them on his desk. “See these pencils, Donnie?” she continued. “They belong to Mrs. Lindstrom and me. See how the erasers are worn? That’s because we make mistakes too. Lots of them. But we erase the mistakes and try again. That’s what you must learn to do, too.”

She kissed him and continued: “I’ll leave one of these pencils on your desk so you’ll remember that everybody makes mistakes, even teachers.” Donnie looked up with love in his eyes and just a glimmer (少许) of a smile.

The pencil became Donnie’s prized possession. That, together with Mary Anne’s frequent encouragement and praise for even Donnie’s small successes, gradually persuaded him that it’s all right to make mistakes – as long as you erase them and try again.

1. The word “baffled” in Paragraph 3 most probably means __________.

A. eased B. confused C. defeated D. impressed

2. Which of the following words best describe Mary Anne as she is shown in the article?

A. Patient and inspiring. B. Creative and modest.

C. Determined and strict. D. Considerate and proud.

3.Which of the following statements is TRUE according to the article?

A. Each of us should try our best to be a perfectionist.

B. Donnie rarely finished his work because he seldom answered questions and thus had difficulties.

C. The story was written mainly to sing high praise for Mary Anne.

D. The author seems to believe that failure is an opportunity to learn and make progress.

The Washington post – NASA’s newest space habitat looks sort of like a kids’ moon bonce, a big, bright, inflatable globe that could be lots of fun to play in. Soon astronauts on the International Space Station could get the chance to try . The expandable habitat made by Bigelow Aerospace recently passed NASA’s strict certification requirements and is scheduled to be flown to the station in September.

Called the BEAM ( Bigelow Expandable Activity Module), the habitat would be attached to the space station, where it would stay for two years. While there, it would be tested to see how it handles the rigors of space – the radiation, the station’s movement and even how it stands up to the debris (碎片) flying around in orbit.

The private Las Vegas company, founded by millionaire real estate mogul(地产大亨) Robert Bigelow, won a $17.8 million contract from NASA to provide the module to the space station.

“Today is the first step, but it’s a big step,” said Bigelow’s George Zamka. Replace the space station or make it larger. It also hopes to build the habitats on the moon. Its B330 module would be even bigger, with 330 cubic meters of internal (内部的 ) space. The modules could be connected. Creating research facilities, the company says, or even space hotels.

In an interview ,NASA’s William Gerstenmaier, said he was eager to see how the module performs , and said he was especially pleased “ to see how the private sector can step up and help us meet our requirements.” The module will be flown to the space station by SpaceX, the first commercial company to resupply the space station.

1.What would be the best title for this passage?

A. NASA’s space habitats flown to the station.

B. NASA’s space habitat it the station.

C. NASA’s new expandable space habitat.

D. NASA’s newest inflatable globe.

2.Which of the following is TRUE according to the passage?

A. NASA’s newest space habitat is a kids’ moon bounce.

B. Astronauts of Bigelow Aerospace could get the chance to try the space habitat.

C. NASA was founded by Robert Bigelow.

D. The B330 module to be built on the moon would be with an inside space of 330 cubic meters.

3.The underlined word “rigors” in Paragraph 2 refers to “_________”.

A. difficulties B. environments

C. movements D. changes

4.The passage is most probably taken from ________.

A. a newspaper B. a booklet

C. a magazine D. a science fiction

完形填空

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填人空白处的最佳选项,并在答题卡上将该项涂黑。

Just Do Something

The winter weather was icy cold and a strong wind blew heavily. I stopped behind several cars in a crossroad. Ahead of me a young woman stood alongside the street. To keep __________ she rubbed her bare hands; ________ ,she danced in place. Beside her rested a sign that________ , ”I have a baby and no food.”Obviously, she was ________ financially.

Homeless and unemployed people are a common_________ in many of our larger cities, and most motorists drive by without ________assistance. Maybe they've been taught that giving money may encourage them to ________a dependent lifestyle, or the ready cash may be used to purchase alcohol or another thing ________ the food. Like me, they may have been taught that one should give money to a local charity or a church, as these institutions can help those in ________ far more effectively.

As I waited for the light to ________ ,I felt conflicted about that young woman. Whether or not I should give money, she was obviously in need. And whether or not she actually had a baby really didn't seem to ________ . I gave up ________ people's motives and analyzing their stories long ago.

What should I do? Give her money? What was the best?

I was wondering with these questions ________ the window rolled down from the car in front of me. A hand ________ out holding a warm pair of gloves. The driver took her own gloves off and gave them to the poor woman. I saw the young woman mouth the words “Thank you" as a broad smile ________ up her face.

As I ________ ,somebody else acted. As I tried to decide the BEST way to ________ , somebody else ________did what she could. As I did nothing, she did something.

I made myself a ________ that I'Il always do SOMETHING. Whether it is big or small, just do something. Something is almost always better than ________

1.A. warm B.cool C.healthy D.calm

2.A. however B.meanwhile C.instead D.therefore

3.A. wrote B.marked C.read D.tied

4.A. working B.managing C.operating D.struggling

5.A. sight B.concern C.idea D.step

6.A. receiving B.offering C.finding D.rejecting

7.A. change B.quit C.develop D.explore

8.A. more than B.apart from C.rather than D.or rather

9.A. surprise B.return C.doubt D.demand

10.A. turn B.replace C.fix D.stop

11.A. matter B.affect C.differ D.happen

12.A. answering B.guessing C.noticmg D.expressing

13.A. as B.before C.while D.when

14.A. reached B.picked C.sent D.hroke

15.A. turned B.lit C.set D.swept

16.A. helped B.quarreled C.hesitated D.appeared

17.A. obtain B.operate C.share D.assist

18.A. quickly B.frequently C.naturally D.slowly

19.A. promise B.comment C.choice D.deal

20.A. anything B.something C.nothing D.everything

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