题目内容

Satellites play big roles in modern life. Some look downward to monitor environmental conditions on Earth.Others look outward in search of major solar flares(耀斑) that can trouble the transmission(传送) of electrical power to homes and businesses. Some spy on our enemies. Others relay communications around the globe. But all of these million-dollar wonders of technology can be knocked out by a collision with space junk ---debris (碎片 )from satellites and other earthly technology orbiting high above the planet. Now,a teen from Jordan has designed a satellite to chase down space junk , collect it and then deal with it.

Even bits of space junk as small as dots of paint pose a threat , says Dana. That's because this debris orbits our planet at speeds up to some 28,200 kilometers per hour. Such high speed explains why tiny paint dots have damaged the windshields of space shuttles so badly that they needed to be replaced.

Researchers have come up with many ideas for getting rid of space junk. Some have suggested vaporizing(蒸发) small bits with lasers. Others have proposed launching satellites to collect the debris. Dana's design falls into this category.

Here's how hers would work : A radar system aboard the satellite would scan and find a piece of space junk.Then,thrusters(推进器)would change the satellite's orbit so that it could chase down the errant object. As the satellite closed in on its prey, cameras would keep it on target.

At the last minute,a door that leads to a container would open. This container needs to be strong so that it doesn't break apart when the satellite swallows the space junk,Dana explains. Finally,when the trash container was full,it would be lowered toward the earth on a kilometer-long cable and its contents released into the upper atmosphere. There, the space junk would harmlessly burn up just like a meteor (流星) does. Meanwhile, her satellite would roll the container back up so that it could collect more trash.

1.What is focused on in the first paragraph?

A. The types of satellites being categorized into.

B. The tracks of satellites orbiting above the planet.

C. The sources of space junk coming from.

D. The danger that satellites face in space.

2.Why can small pieces of space junk threaten satellites?

A. They travel at a very high speed.

B. They are difficult to track by satellites.

C. They can blow up into millions of pieces.

D. They are as soft as a ball in the air.

3.The underlined words "the errant object" refer to_____.

A. the radar system that scans space junk

B. the space junk that travels in disorder

C. the satellite that doesn't keep its track

D. the camera that can't keep space junk on target

4.According to the Dana's design, space junk in her satellite___________.

A. will be swallowed and stored in its trash bin

B. will be broken apart in the trash container

C. will be destroyed by heat in the upper atmosphere

D. will be transported to the earth through a cable

练习册系列答案
相关题目

A drunken burglar in the Orrell Park area of Liverpool, ended up leaping out of a window after a 10-year-old girl asked him to prove he was a superhero.

The drunken thief who pretended he was Superman to stop a child raising the alarm has been caught after he leapt from the apartment building in his pants to make the girl convinced.

Thief Ethan Adamson, 25, told police that he had broken into a fifth-floor flat after a drinking party, believing it was empty.

But he was horrified when the owner’s 10-year-old daughter woke up while he was there.

From his hospital bed, the thief told reporters, “To keep her quiet, I told her I was really Superman and I’d soon be flying off back to my secret headquarters.”

“She called my bluff (向…摊牌) and told me, ‘If you’re Superman, show me you can fly or I’ll scream’.

“I had no choice so I stripped to my pants to look more like a superhero and went to the window. I saw another roof below and I thought I could make it but it turned out to be a lot further down than thought. I know it doesn’t make sense but it did to me when I was drunk.”

Police later found him on the roof in just his yellow pants, covered in cuts and bruises(淤青) after a neighbor heard his cries of pain.

He now faces seven years behind bars for burglary.

Police spokesman Frank Armado said, “He was in quite a serious state and couldn’t move until we got up there using ladders. He was treated for his injuries and we got him some fresh clothes, before taking him to hospital where he is being kept under guard until he is well enough to be arrested.”

1.What does the underlined part in the passage mean?

A. I could land safely on the roof.

B. I could make the girl trust me.

C. I could prove I was a superhero.

D. I could make a successful escape.

2.What’s the right order of the event?

a. Ethan Adamson told reporters of the burglary.

b. The 10-year-old girl called Ethan Adamson’s bluff.

c. Ethan Adamson attended a drinking party.

d. Ethan Adamson leapt out of a window.

A. cabd B. dbca C. cbda D.dcab

3.What is the author’s purpose of writing the passage?

A. To report on a joking burglary.

B. To call our attention to the burglary.

C. To explain how the burglar was caught.

D. To look back on an adventure story.

The London Eye 4D Film Experience started in August and is included in the London Eye ticket price. It is a fantastic 4D film to entertain you before your trip on the London Eye. The 4D effects are great.

No Extra Cost to You

That’s right; you buy your ticket for the London Eye and 4D cinema experience. Merlin Entertainments, the London Eye owners, spent 5 million creating the film and building the 4D cinema and wanted to improve the value for money of the London Eye.

What to Expect

The 4D Cinema entrance is in the ticket hall. So after buying your ticket, go straight to it, where you’ll be given a pair of glasses. About 160 visitors will pass through the 4D cinema every 8 minutes so don’t worry about waiting time. People in the bright pink cinema are all standing on four levels. The top level is designed for wheelchairs.

London Eye 4D Film

Put on your glasses and enjoy yourself. The story is about a little girl visiting London with her father and she wants to be higher to get a better view so she comes to the London Eye. It differs from watching the 3D film for all your senses are involved. When it snows on screen, you feel it snows in the cinema. And when you watch the fireworks, you can really smell them.

For a short film, less than four minutes, before the main attraction you think you’ve come for, you are going to love this free extra. I stood there with my mouth wide open at the end as many others did. It’s fantastic! The effects are the Hollywood standard as no expense is spared. I was lucky enough to try the film three times on the first day and I still want to go back again.

1. What does the author mainly tell us in this passage?

A. He mainly introduces the 4D film of Merlin Entertainments.

B. He mainly introduces the London Eye entertainment centre.

C. He mainly tells us his experiences while creating the 4D film.

D. He mainly introduces to us how to take part in the 4D film.

2.Why did the Merlin Entertainments build the 4D film cinema?

A. Because it wanted to attract more visitors to London.

B. Because it could earn more money from the public in the UK.

C. Because it could provide more entertainments for visitors.

D. Because it wanted to increase the value of the London Eye.

3.Where could people get into the 4D film cinema?

A. In the Hollywood. B. In the ticket hall.

C. Under the London Eye. D. In the ticket centre.

4.While seeing a 4D film, people will feel ________.

A. greatly frightened B. much worried

C. sweet smell D. as if they were on the scene

Cocoa Beach /Jupiter Surf Camp — Summer

Summer Surf Camp is centrally located on the Best Western seashore in Cocoa Beach & Jupiter at Carlin Beach Park with accommodations(住宿) at the Holiday Inn Express in Juno Beach.

Summer Surf Camp Dates:

● Surf Camp — Session 1 May 27th—30th Family Surf Week (All Ages)

● Surf Camp — Session 2 June 2nd—6th Family Surf Week (All Ages)

● Surf Camp — Session 3 June9th—13th Team Week (Ages 12—17)

● Surf Camp — Session 4 June16th—20th Family Surf Week (All Ages)

● Surf Camp — Session 5 June23rd—27th Adults Only (18 and over)

● Surf Camp — Session 6 June30th—July 3rd Family Surf Week (All Ages)

● Surf Camp — Session 7 July 7th—11th Family Surf Week (All Ages)

● Surf Camp — Session 8 July 14th—18th Women’s Camp (18 and over)

● Surf Camp — Session 9 July 21st—25th Family Surf Week (All Ages)

● Surf Camp — Session 10 July 28th—August 1st Adults Only (18 and over)

* A 20% discount will be applied to the 4-Day Surf Camp Weeks.

* Parents are always welcome to sign up and join their children during the teen week surf camp sessions.

Summer Camp Details:

● Use coupon(优惠券) code: “Camp5” at checkout to get the 5% discount

* Daily Rate: $125.00 / person

* Surf Camp Runs: 9:30 am — 2:30 pm

● Please note: We don’t supervise(监督) the campers after 2: 45 pm.

* Directions to Camp: click here

Contact us: 888-672-4887 info@floridasurflessons.com

1.Where does this text probably come from?

A. A newspaper. B. A magazine. C. A website. D. A book.

2.If the Smiths with their 11-year-old son want to join in the Summer Surf Camp, they’d better go there on .

A. June 10th B. June 23rd C. July 22nd D. July 29th

3.If Mr and Mrs Brown have a “Camp5” coupon and want to join in the Summer Surf Camp from June 30th to July 3rd, how much should they pay?

A. $600. B. $760. C. $800. D. $950.

4.What can we know from the form?

A. The campers are supervised all day.

B. A couple can sign up and join in the Camp by fax.

C. Parents can take part in Session 3 together with their children.

D. An adult can join in the Summer Surf Camp on any day in June.

Do you have an emotional brain or a rational (理性的) one? Researchers at Australia’s Monash University have found actual difference in the brains of people who respond emotionally to others’ feelings compared with those who respond more rationally.

A study published in the journal NeuroImage has looked at whether people who have more brain cells in certain areas of the brain are better at certain types of empathy, according to Science Daily. Empathy is the ability to understand and share the feelings of another person, and the two types investigated were cognitive (认知的) empathy and affective (情感的) empathy.

“Every day people use empathy with, and without, their knowledge to get around in the social world,” said Robert Eres from Monash University’s School of Psychological Sciences. “We use it for communication, to build relationships, and to increase our understanding of others.”

“People who are high on affective empathy are often those who get quite fearful when watching a scary movie, or start crying during a sad scene. Those who have high cognitive empathy are those who are more rational, for example a psychologist helping someone,” explained Eres.

The results of the study showed that people with high scores for affective empathy had more gray matter in a part of the brain called the insula, found right in the “middle” of the brain. Those who scored higher for cognitive empathy had more in a part called the midcingulate cortex—an area above the corpus callosum, which connects the two halves of the brain.

The discovery “raises new questions—like whether people could train themselves to have more empathy, and whether those areas of the brain would become larger if they did, or whether we can lose our ability to empathize if we don’t use it enough”, according to Science Daily.

“In the future we want to investigate further by testing whether training people in empathy-related tasks can lead to changes in these brain areas. We also want to investigate if damage to these brain areas, as a result of a stroke (中风) for example, can lead to empathy problems.” said Eres.

Perhaps in the future we will all be able to empathize more with other people. Maybe you will cry at that sad movie after all!

1.Empathy can be used in the following situations EXCEPT that .

A. when a psychologist is helping a patient with his mental disease

B. when a teacher is comforting a student about his father’s death

C. when a mathematician is calculating the area of a farmland

D. when people are reading a story with a frightening ending

2.What does the research done by Monash University mainly show?

A. Differences in the brains of emotional and rational people.

B. Whether a rational brain works better than an emotional one.

C. What empathy is and how to improve people’s ability to empathize.

D. How to effectively train people to have more empathy cells in their brain.

3.Which of the following statements might Robert Eres disagree with?

A. People use empathy when they are or aren’t aware of it.

B. People tend to use empathy to build relationships or understand others.

C. People with higher affective empathy feel heart-broken when watching sad movies.

D. People who are more rational have been found to have more gray matter in their brains.

4.Which of the following will be one of the focuses of future investigations according to the article?

A. How to train people in empathy-related tasks.

B. Whether people can be trained to be more empathetic.

C. Whether empathy problems can lead to damage to areas of the brain.

D. Why people seem to lose their ability to empathize if they don’t use it enough.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网