题目内容

Over the past decades, sea ice     in the Arctic as a result of global warming.

A. had decreased  B. decreased   C. has been decreasing D. is decreasing

   

 

C。 ks5u

解析:考查时态。句中有Over the past decades谓语动词用现在完成时或现在完成进行时。 ks5u

练习册系列答案
相关题目

STAGE

Keep it in the air: The Chaoyang Theater is one of the Beijing theaters to present acrobatics(杂技 ) all year round.Top acrobatic artists invited from all over the country perform for Chinese and foreign tourists.The program contains trick cycling, leaping through hoops and Chinese magic tricks.Some of the artists have won prizes in international competitions.

Time: 7∶15 p.m.Daily

Place: 36, Dongsanhuan Beilu, Chaoyang District

Tel: 65072421, 65071818

Use your head: Green Hat is a new drama given by a group of young Chinese actors.It’s a rewrite of American writer Nathaniel Hawthorne’s famous novel The Scarlet Letter. It describes the heroine’s great courage in finding the true love against the public disagreement.

Time: 7∶15 p.m.until March 5, except Mondays

Place: China Children’s Theater

Tel: 66037255, 66037265

Mix and match: Story of Puppets tells of a fairy, Zixia, who looks for true love in the human world.After watching a puppet play Peony Pavilion, she thinks there must be true love in reality, so she uses magic to turn the puppet characters into humans, wanting to fall in love with the puppet hero.But things don’t go as she planned...Li Liuyi, the director of the play has made several successful attempts to present different traditional operas in one play.This time he combines Peking Opera, Kunqu Opera, Pingju Opera along with a band, using the structure of modern drama.

Time: 7∶ 30 p.m.until March 10, except Mondays

Place: Small Playhouse of Beijing People’s Art Theater

Tel: 65250123

Peking Opera: The Beijing Peking Opera Troupe will give two performances at the Chang’an Grand Theater.Each performance includes two classical excerpts(选段).One is Wenxi(a play focusing on singing and dancing); the other is Wuxi (a play full of acrobatic dancing).The first night will be The Crossroad and Presenting a Pearl of the Rainbow Bridge.And the second night will see the  performance of The Goddess of Heaven Scatters Flowers and Havoc in Heaven.

Time: 7∶30 p.m.February 27, 28

Place:Chang’an Grand Theater

Tel: 86531043

We can learn from the text that________.

  A.story of puppets is a play held in China Children’s Theater

  B.the artists who have won prizes will perform magic tricks

  C.on March 5 there will be two plays for us to choose

  D.the artists in the Beijing Peking Opera Troupe are from all over the country

If a tourist wants to see a performance on March 15, he can call_______to book a ticket.

    A.86531043       B.65250123   C.66037255     D.65071818

According to the text, which of the following statements is true?

 A.The director of the Story of Puppets combines different operas in it.

 B.Green Hat is based on a famous novel acted by some American artis

C.Top Acrobatic artists will present their performances around our country.

D.The Beijing Peking Opera Troupe will give two performances with the same excerpts.

A powerful earthquake struck the northeastern coast of Japan at two forty-six p.m. local time on March eleventh.2011. Japan's Meteorological Agency released its first tsunami(海啸) warnings just three minutes later. The country has one of the best earthquake early warning systems in the world.
There are more than four thousand Seismic Intensity Meters in place throughout Japan to measure earthquake activity. These meters provide information within two minutes of an earthquake happening. Information about the strength and the center of the earthquake can be learned within three minutes.
There are also concrete(混凝土) sea walls around much of the Japanese coastline. But these measures proved no match for the powerful earthquake and tsunami.
Costas Synolakis ,a tsunami expert at the University of Southern California in Los Angeles said,"Japan is one of those most well-prepared countries on earth in terms of tsunami warning. They had a warning. I think what went wrong is that they had not expected the size of this event."
He says there are two reasons for this. Japan has not had any event anywhere near as big as this one in the last one hundred fifty years. And scientists had not expected such a large earthquake happening off the coast of Japan.
The nine point zero magnitude earthquake was the fourth most powerful earthquake ever recorded worldwide. It was also the worst earthquake ever to hit Japan. The tsunami waves that followed were reported to have reached as high as thirteen meters in some areas.
Costas Synolakis says Japan's concrete sea walls were not built to handle such high waves.
Experts say early warning systems will continue to be limited by these facts until earthquakes and tsunamis can be predicted
【小题1】Where can this passage probably be adapted from?

A.A magazine on scienceB.A fairy Tale
C.A scientific fantasy bookD.A newspaper
【小题2】Which of the following statements NOT true ?
A.A terrible earthquake hit the northeastern coast of Japan
B.It was also the worst earthquake in Japan
C.The 9.0 earthquake was the fourth most powerful earthquake ever recorded in Japan
D.Japan's concrete sea walls was unable to handle such high waves.
【小题3】According to Costas Synolakis, why did Japan suffer such a loss?
A.The country has never experienced any event as big as this one over the past 150 years
B.Japan has the best earthquake early warning systems in the world.
C.There are not concrete sea walls around all of the Japanese coastline
D.The government didn’t announce its first tsunami warnings three minutes earlier.

On September 22, 1986, Jay Brunkella, a police-officer in the Rogers Park district in Chicago, was shot during a drug arrest and died. Shortly afterwards, fellow officer Ken Knapcik, a 20-year veteran (老警官) of the force, returned home after work to find a note from his 15-year-old daughter on the dining table.
Dad---This poem came directly from my heart. I love you so much! It scares and amazes me that you go out every day and risk everything to provide us with all that we have. I wrote this to express how much I love you and how much lost I’d be without you-Laura. P.S.: Hey, let’s be careful out there.
Titled “The Ultimate Cop”, Laura’s poem was dedicated “To all the cops in the world who have daughters who love them with all their hearts. And especially to my dad.” It was about a police-officer’s daughter who sees on the night time news that her father has been shot. Part of poem: “Daddy, my Daddy, can you hear me cry? Oh, God, I need my Daddy, please don’t let him die.”
Ken Knapcik stood alone as he read the poem. “It took me several minutes,” he said. “I’d get through part of it and have to stop before I could go on. I was weeping. She had never told me she was scared.” He took the poem to work the next day and showed it to his fellow officers. “I’ve never seen so many grown men cry. Some couldn’t finish it.”
Knapcik keeps Laura’s poem in the pocket of his police jacket. He takes it with him every time he leaves the house for a new shift. “I don’t want to be out there without it.” he said, “I’ll probably carry it with me forever.”
【小题1】Laura wrote the poem ______.

A.in memory of her father who was shot in the drug arrest
B.to show her great sorrow in losing her father
C.to show her respect to all the cops who lost their lives
D.to tell Officer Ken Knapcik how much she loved him
【小题2】All the officers cried because ______.
A.Jay Brunkella was shot and died
B.they were greatly touched by the poem
C.the poem was so sad that they couldn’t hold back their tears
D.they thought of their dangerous life
【小题3】Knapcik keeps Laura’s poem in his pocket ______.
A.to treasure her daughter’s love and to value his own life
B.to keep it from missing
C.because he can’t go out without it
D.to mourn over the death of officer Jay Brunkella
【小题4】Which of the following is the best title for the passage?
A.Poem for a copB.An officer’s death
C.Daughter’s loveD.Love my job, love my daughter

Diet Coke, diet Pepsi, diet pills, no-fat diet, vegetable diet… We are surrounded by the word “diet” everywhere we look and listen. We have so easily been attracted by the promise and potential of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that harm us psychologically and physically.

Diet products weaken us psychologically. On one level, we are not allowing our brain to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption of fatty, high-calorie(卡), unhealthy foods. Diet products allow us to jump over the thinking stage and go straight for the counter instead. All we have to do is to swallow or recognize the word “diet” in food brands.

 On another level, diet products have greater psychological effects. Every time we have a zero-calorie drink, we are telling ourselves without our awareness that we don’t have to work to get results. Diet products make people believe that gain comes without pain, and that life can be without resistance and struggle.

 The danger of diet products lies not only in the psychological effects they have on us, but also in the physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead of healthy foods means we are preventing our bodies from having basic nutrients(营养成分). Diet foods and diet pills contain zero calorie only because the diet industry has created chemicals to produce these wonder products. Diet products may not be nutritional, and the chemical that go into diet products are potentially dangerous.

 Now that we are aware of the effects that diet products have on us, it is time to seriously think about buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this, we will be much better able to resist diet products, and therefore prevent the psychological harm that comes from using them.

1.The first paragraph mainly tells us _____.

A. diet products can bring out people’s potential

B. people have difficulty in choosing diet products

C. diet products are misleading people

D. people are fed up with diet products

2.One psychological effect of diet products is that people tend to ____.

A. resist a variety of diet foods

B. hesitate before they enjoy diet foods

C. pay attention to their own eating habits

D. watch their weight rather than their diet

3.The purpose of writing this passage is _________.

A. to warn people of the side effect of diet products

B. to tell people how to lose weight

C. to advise people to eat diet products

D. to introduce some diet products

4. Which of the following shows the structure(结构) of the passage?

CP: Central Point      P: Point       Sp: Sub-point(次要点)   C: Conclusion

 

A murder will occur this weekend in the peaceful seaside town of Langley, Washington. In fact, a murder has occurred there every February for the past 25 years. But don’t panic! It’s all part of the town’s yearly Mystery Weekend.

What began as a local event in 1984 now attracts visitors from over the U.S. and even abroad. Would-be detectives(侦探)arrive on Saturday. There, they receive a packet, including a newspaper with details about the crime and information telling where to find clues(线索). Visitors then travel to various shops, restaurants and other places, searching for clues as they go. Along the way, they meet and interview suspects (疑犯) played by local people. The visitors need turn in their guesses on Sunday at 4:00 p.m.. Then as everyone gathers, the murderer is found, and prizes are awarded for correct answers.

For visitors, Mystery Weekend is not only fun but also a great introduction to the charms of Langley. It’s a very attractive place with historic buildings, exciting ocean views and above all, friendly people. Since Langley is on an island, a fun way to get there is by taking a ship to the nearby town of Clinton and then driving the rest of the way. Langley has a delightful selection of hotels with bed and breakfasts that are open all year round. And activities in Langley aren’t limited to Mystery Weekend. There is also great hiking, biking, golfing and diving to enjoy. And for a special adventure, visitors can book on one of the whale–watching ships that leave nearby harbors each day. 

1. The second paragraph mainly tells us__________.

A. where visitors can pick up the clues

B. what people do during Mystery Weekend

C. when Mystery Weekend came into being

D. how the detectives try to clear up the case

2.According to the passage, visitors in Langley can Not__________.

A. watch whales performing

B. take a ship to Clinton.

C. enjoy a wide variety of activities like dancing and singing

D. stay in hotels opened throughout the year

3.We learn from the text that Mystery Weekend  ______.

A. is an event which happens once a year.

B. aims to decrease crime rate

C. is intended for detectives

D. offers visitors a chance to make money

4. What would be the best title for the passage

A. Langley    B. Mystery Weekend    C. Would-be detectives    D. A murder

 

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