Three “Great Walls” built around the United States’ Tornado Alley could reduce tornadoes from destroying billions of dollars in property and endangering millions of lives, a physicist has claimed.
Professor Rongjia Tao of Temple University, Philadelphia unveiled a proposal this week calling for the construction of three 1,000-foot barriers up to 100 miles long, which would act like hill ranges and soften winds before tornadoes could form, the BBC reports.
The $16.9 billion plan would call for the faux hill ranges in North Dakota, along the border between Kansas and Oklahoma, and in Texas and Louisiana, ostensibly saving billions of dollars in damage every year, Tao said. The walls would not shelter towns, he said, but instead would soften the streams of hot southern and cold northern air that form tornadoes when they clash in the first place.
But critics laughed at Tao’s proposals. Leading tornado experts pointed to areas that are already protected by hill ranges the size of the barriers Tao is proposing, yet still have plenty of tornados, like parts of Oklahoma, Arkansas and Missouri. And even if the plan did work, it would create more problems than it would solve, scientists said, by creating catastrophic weather side effects.
“Everybody I know is of 100% agreement – this is a poorly conceived idea,” Professor Joshua Wurman of the Center for Severe Weather Research. “From what I can gather his concept of how tornadoes form is fundamentally flawed(有缺陷的). Meteorologists(氣象學家) cringe(尷尬) when they hear about ‘clashing(交鋒) hot and cold air’. It’s a lot more complicated than that.”
小題1:What does the underlined word “unveiled”mean in the fourth paragraph?
A.remindedB.came up withC.referredD.a(chǎn)pplied
小題2:What’s the main idea of the passage?
A.The different opinions on the proposal that the walls will reduce the loss caused by tornadoes.
B.How to solve the problems that are caused by tornadoes.
C.The proposal mentioned in the paragragh is totally wrong.
D.The proposal to reduce tornadoes is effective.
小題3: From the passage, we can infer that__________.
A.the tornadoes form by clashing(交鋒) hot and cold air.
B.if the walls are built, they will work well.
C.if the plan is carried out, we will have more problems than expected.
D.The walls not only soften the winds but also shelter the towns.
小題4:Which of following statements is true according to the passage?
A.Leading tornado experts think that would soften the streams of hot southern and cold northern air that form tornadoes.
B.Professor Joshua Wurman pointed out that the plan will be expensive.
C.Professor Rongjia Tao is against the construction of walls to prevent the tornadoes.
D.the plan will not be carried out because it will creating serious weather side effects.

小題1:B
小題2:A
小題3:C
小題4:D
本文是一篇報道。文章講述了美國專家對Professor Rongjia Tao提出的“建高墻”阻止龍卷風計劃的不同意見。
小題1:考查猜測詞義。根據(jù)文章第一段中的Professor Rongjia Tao unveiled a proposal this week calling for the construction of three 1,000-foot barriers up to 100 miles long可知,這里是提出的意思。
小題2:考查主旨要義。根據(jù)這段話的內(nèi)容可知,專家對建高墻防止龍卷風的發(fā)表的不同意見。故選A。
小題3:考查推理判斷。根據(jù)文章第四段中的And even if the plan did work, it would create more problems than it would solve, scientists said, by creating catastrophic weather side effects.可知,即使高墻起作用,它會產(chǎn)生無法解決的惡劣氣候的副作用。故選C。
小題4:考查細節(jié)理解。根據(jù)文章中對這個建議的不同意見可知,這個計劃實施的可能性不大。故選D。
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科目:高中英語 來源:不詳 題型:閱讀理解

Here is a poster on a middle school web site. Read the web-site poster. Then do Numbers 1 to 4.
Going, Going, Gone!
The Haynes Middle School Parent—Teacher Organization
invites you to attend our latest fund(基金)-raiser,
The Fourth Annual(每年一次的) Haynes School Auction(拍賣)!
Saturday, May 10
6:00 pm — 11:00 pm 
in the school hall
6:00 pm — 6:30 pm: All items for auction are previewed.
6:30 pm — 7:00 pm: Silent auction begins.
7:00 pm — 7:30 pm: Highest bidders(出價人) from silent auction are determined.
7:30 pm — 11:00 pm: Main auction begins.
Items up for bid in the silent auction range in value from $ 5.00 to $ 30.00.
Items up for bid in the main auction include the following:
●Airline tickets to a place of your choice
●Weekend getaways at first-class hotels
●Season tickets to the Chicago Bears football game
●$ 50 gift tickets to local gift shops, restaurants, and salons
●Theater tickets to The Merchant of Venice
Don’t miss the boat! Book your tickets today.
Last year, tickets sold out in five days!
Tickets are sold on a first-come, first-served basis.
$ 15.00 per person
All the money from the auction will be given to the Haynes School computer lab.
小題1: Which of the following is not mentioned as being up for bid at the auction?
A.A movie pass to the local cinema.
B.A weekend stay at a hotel.
C.A ticket to a restaurant.
D.Airline tickets.
小題2:The more items that are given or bought for auction, _______.
A.the less money that will be charged for the tickets to the auction
B.the more money that can be raised to support the computer lab
C.the faster the ticket will be sold to the auction
D.the higher the value that will be placed on the items in the silent auction
小題3:Which of the following is most likely to happen at the year’s auction?
A.The airline tickets will receive higher bids than any other item.
B.All items up for bid will be sold for at least twice their value.
C.More money will be raised this year than in any other year before.
D.Tickets for the event will be sold out in less than one week.
小題4:The phrase “first-come, first-served” tells you that _______.
A.people can buy the tickets on the first day only
B.the person who is first to arrive will receive a ticket at no charge
C.food and drinks will be served at the auction
D.tickets are sold in the order of who arrives first to buy them

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科目:高中英語 來源:不詳 題型:閱讀理解

When Mary Barra took the wheel at General Motors in January she inherited a company in good shape. Five years after bankruptcy(破產(chǎn)), its profits were beyond expectations and its share price was rising. But the new boss's to-do list was long: fixing GM's loss-making European arm, keeping up momentum(勢頭) in China amid signs of a slowdown and giving new life to the product line. The former CEO, Dan Akerson, warned her that she would also face unexpected challenges. The first has arrived sooner than she might have expected.
What appeared to be a routine recall(召回) of about 800,000 older models, linked to a faulty ignition(點火) switch, has turned out to be anything but. The number of cars recalled has leapt to more than 2.6 million. The company's clumsy handling of a safety problem that first became apparent a decade ago is now linked to the deaths of at least 13 motorists.
Called before Congress to answer for GM's failings Ms Barra said she was “deeply sorry” but insisted that the post-bankruptcy “new GM” was not like the “old GM”, which had failed to deal with the ignition switches for years. Politicians and the public alike want to know how such a problem could have remained unaddressed for so long.
Cars are becoming ever more complex machines, with thousands of mechanical and electronic parts. Last year it happened to 22 million vehicles in America, compared with 18 million in 2012. In fact, GM was one of only three brands that recalled fewer vehicles than it sold. Minor problems, like squeaks(吱吱響) or rattles(卡嗒響), that do not affect safety are more common still. They may be fixed at a routine service; the owner may never know. The growing number of recalls is proof to an improving system for picking up faults.
But it is very complicated. Dealers must record replacements of parts under warranty(保修). The carmaker needs to spot the trend, recognize it as a problem and then determine whether or not it is a design fault that requires an extensive replacement. It relies on accurate recording of every warranty replacement in every region. This system appears to have broken down at “old GM”. Ms Barra needs to find out why.
The core problem is a widely used ignition switch that has a tendency to slip from the “on” position to “off” if a driver uses a heavy key-chain or bounces down a rough road. An improvement was made in 2008 to prevent the problem, which can lead to the engine shutting off, disabling the airbags. But despite a growing list of crashes and deaths, GM failed to order a recall for a component that would have cost a few dollars at most.
This is odd. Most carmakers want to identify and fix problems speedily despite having to bear the cost of buying and fitting a new component. A small part can do great harm, if bad publicity leads to reputational collapse, lost sales and law suits, including heavy penalties. Appearing to put profits before safety is an invitation to battering a firm's shares, as GM has discovered.
So far Ms Barra has handled the situation well. She seems to have acted as soon as she found out something was wrong. GM has appointed a worldwide safety president to cut through the process that may have delayed investigation and action. And in a sweeping housecleaning, GM has recalled another 2 million vehicles in America alone. GM looks set to accept moral, if not legal, responsibility. The terms of its exit from bankruptcy give immunity to lawsuits for injuries arising beforehand. But GM is likely to compensate survivors’ and victims' families anyway.
It is not yet clear how much of a hammering GM will take. But hours before Ms Barra's meeting with Congress, the Insurance Institute for Highway Safety issued a greatly desired “Top Safety Pick” for the new Chevrolet Malibu, one of a growing number of well-received cars from GM.
小題1:When Mary Barra took office, there was plenty more room for GM's improvement in that ________.
a. the development of Chinese market appears to be slowing down
b. former bosses have failed to fix GM's loss-making European arm
c. some car models lack appeal in the market
d. Mr. Akerson has left some challenges for her to handle
e. GM’s management teams are made up mainly of men
A. a, b, and eB. b, c, and dC. a, b, and cD.a(chǎn), c and d
小題2:What can be inferred from Paragraph 4?
A.Problems like squeaks or rattles are frequent reasons for recalls.
B.Recalls are not uncommon in the auto industry.
C.Car companies welcome recalls to demonstrate improved products and services.
D.Minor problems may be fixed at a routine service without the owners’ knowledge.
小題3:Mary Barra has carried out the following strategies to manage the crisis and quiet the critics EXCEPT that ________.
A.a(chǎn)s soon as she learned about the problem, she acted without hesitation
B.she faced facts and apologized sincerely
C.she took the legal responsibilities for their previous mistakes
D.she appointed a new president for global safety for GM
小題4:What does the underlined word “battering” in paragraph7 probably mean?
A.Benefiting.B.Regulating.C.Purchasing.D.Damaging.
小題5:What can we infer from GM's new Malibu being awarded “Top Safety Pick”?
A.GM's new model Malibu is specially designed to solve ignition problems.
B.GM products are gaining more and more popularity around the world.
C.GM seems to be on the road to saving itself from mistakes.
D.GM has worked out a solution to the broken-down recall system.

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科目:高中英語 來源:不詳 題型:閱讀理解

LaMar Baylor, an American performer in the Broadway musical, spends most of his time in New York City.But since 2011, he has also spent weeks in Kigali, the capital of Rwanda.There, he teaches dance to boys who live on the street.His teaching is part of an effort by the Rebecca  Davis Dance Company.The project helps young people learn more about dance and learn how to  behave in a classroom environment.
Rebecca Davis and LaMar Baylor teach ballet to street children in Kigali, Rwanda.The  children have lost all of their families.Some have been in prison; others have sold their bodies for sex.Dance classes provide the children with structured learning and self-expression that they've never had before.
Rebecca Davis is the founder and director of the dance company.She got the idea for the project after visiting Rwanda in 2008.There she met a large number of street children who were dancing, and she thought that dance could be used to get them off the street and into a safe place.She believes that learning to dance is a step toward education.She says children can take classes in information and technology after they have learned to attend classes and follow directions.
Boys who have done best in the classes win scholarships and are sent to the Sunrise Boarding School.About 30 boys have won this kind of financial aid.
As for LaMar Baylor, he knows from his own experience how dance can lead to a better life.He is from Camden, New Jersey.Camden has sometimes been called America's poorest and most dangerous city.He now thanks dancing for saving his life.
The Rwanda program is the largest one set up by the Rebecca Davis Dance Company, and Ms.Davis has also set up dance programs in Bosnia-Herzegovina and Guinea.About 2,000 children in the three countries have taken part in the project since it was begun in 2010.
小題1:The dance project aims to____.
A.give the street children parental care
B.provide scholarship for the street children
C.help the street children receive some education
D.keep the street children in good health
小題2:What do we learn about the street children from the passage?
A.All of them can be sent to the Sunrise Boarding School.
B.It may be hard for them to adapt to classroom rules at first.
C.They only take classes in dancing.
D.Many of them have been in prison.
小題3:What LaMar Baylor and the street children in the project have in common is that _.
A.they all benefit from dancing
B.they borrowed money from the project
C.they learn to express themselves in dance class
D.they were homeless at one time
小題4:We can infer from the last paragraph that          -.
A.the dance project was started in Guinea
B.the Rwanda program is the first program by Rebecca Davis
C.the Rwanda program has attracted about 2,000 children
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科目:高中英語 來源:不詳 題型:閱讀理解

Human remains of ancient settlements will be reburied and lost to science under a law that threatens research into the history of humans in Britain, a group of leading archaeologists(考古學家) says. In a letter addressed to the justice secretary, Ken Clarke, 40 archaeologists write of their “deep and widespread concern” about the issue. It centers on the law introduced by the Ministry of Justice in 2008 which requires all human remains unearthed in England and Wales to be reburied within two years, regardless of their age. The decision means scientists have too little time to study bones and other human remains of national and cultural significance.
“Your current requirement that all archaeologically unearthed human remains should be reburied, whether after a standard period of two years or further special extension, is contrary to basic principles of archaeological and scientific research and of museum practice,” they write.
The law applies to any pieces of bone uncovered at around 400 dig sites, including the remains of 60 or so bodies found at Stonehenge in 2008 that date back to 3,000 BC. Archaeologists have been granted a temporary extension to give them more time, but eventually the bones will have to be returned to the ground.
The arrangements may result in the waste of future discoveries at sites such as Happisburgh in Norfolk, where digging is continuing after the discovery of stone tools made by early humans 950,000 years ago. If human remains were found at Happisburgh, they would be the oldest in northern Europe and the first indication of what this species was. Under the current practice of the law those remains would have to be reburied and effectively destroyed.
Before 2008, guidelines allowed for the proper preservation and study of bones of sufficient age and historical interest, while the Burial Act 1857 applied to more recent remains. The Ministry of Justice assured archaeologists two years ago that the law was temporary, but has so far failed to revise it.
Mike Parker Pearson, an archaeologist at Sheffield University, said: “Archaeologists have been extremely patient because we were led to believe the ministry was sorting out this problem, but we feel that we cannot wait any longer.”
The ministry has no guidelines on where or how remains should be reburied, or on what records should be kept.
小題1:According to the passage, scientists are unhappy with the law mainly because _______.
A.it is only a temporary measure on the human remains
B.it is unreasonable and thus destructive to scientific research
C.it was introduced by the government without their knowledge
D.it is vague about where and how to rebury human remains
小題2:Which of the following statements is true according to the passage?
A.Temporary extension of two years will guarantee scientists enough time.
B.Human remains of the oldest species were dug out at Happisburgh.
C.Human remains will have to be reburied despite the extension of time.
D.Scientists have been warned that the law can hardly be changed.
小題3:What can be inferred about the British law governing human remains?
A.The Ministry of Justice did not intend it to protect human remains.
B.The Burial Act 1857 only applied to remains uncovered before 1857.
C.The law on human remains hasn’t changed in recent decades.
D.The Ministry of Justice has not done enough about the law.
小題4:Which of the following might be the best title of the passage?
A.New discoveries should be reburied, the government demands.
B.Research time should be extended, scientists require.
C.Law on human remains needs thorough discussion, authorities say.
D.Law could bury ancient secrets for ever, archaeologists warn.

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科目:高中英語 來源:不詳 題型:閱讀理解

All it took was a slice of Xinjiang cake to spark heated debates online over China's policy on ethnic minorities (少數(shù)民族) .
Since Monday, qiegao (cut cake) has been a trending topic on Sina Weibo, China’s main Twitter-like microblogging service.
The cake was a reference to Xinjiang’s famed nut cake, sometimes known by its old Turkic name baklava, a popular pastry across Central Asia and the Middle East. In Xinjiang, they are sold by Uygur vendors on tricycles who are known to charge dubious prices depending on the time and season.
The ethnic flare-up started after the Yueyang police from Hunan province posted a message on their official Weibo account. It reported a dispute in Pingjiang county over an overpriced piece of nut cake between a Xinjiang Uygur vendor and a villager named "Ling".
Villager Ling got into a fight with a Uygur due to a misunderstanding. The verbal dispute eventually escalated into a fight and then a mass fight. As a result, two people were injured and Xinjiang nut cakes worth about 160,000 yuan (US$25,000) were destroyed. The total damage was worth 200,000 yuan which included a broken motorcycle and injuries to people. Local police have detained Ling. The 16 Uygur sellers were dully compensated and sent back to Xinjiang.
"Yueyang police incident" quickly became one of the most popular topics on Weibo. Yueyang police removed the post shortly after. As of Tuesday night, the topic was still amassing more than 66,000 hits. 
The incident is just one of many similar cases of ethnic tensions across China, notably in Xinjiang province, where deeply entrenched social and racial frictions between the dominant ethnic Han Chinese and minority Uygur Muslims occasionally spark violence. Many Uygurs living in major Chinese cities are viewed by locals as thieves, crooks and even terrorists.
小題1:Which of the following is true?
A.The dispute is between a Xinjiang Uygur vendor and a policeman.
B.Nut cake is a popular pastry across East Asia and the Middle East.
C.The prices of Baklava will change according to the time and season.
D.The demand of the 16 Uygur sellers were refused and they were sent back to Xinjiang.
小題2:How much did the broken motorcycle cost?
A.160,000 yuan B.200,000 yuan C.40,000yuan D.We don’t know
小題3:What’s the best title of the passage?
A.World's most expensive baklava
B.Ethnic tensions across China
C.Pay attention to the Uygurs
D.Misunderstanding caused a fight
小題4:What can we infer from the passage?
A.Yueyang police are afraid of the Xinjiang Uygur vendor
B.It’s not the only ethnic tension across China,
C.Many Uygurs living in major Chinese cities are viewed by locals as thieves, crooks and even terrorists.
D.Villager Ling got into a fight with a Uygur due to a misunderstanding.

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科目:高中英語 來源:不詳 題型:閱讀理解

News that Microsoft made a $44.6 billion bid to buy Yahoo resulted in heated discussions made by many Internet users. Here are some responses:
Diane Burke of Weeks bury, Kentucky
I think it would definitely be an interesting combination. Everyone recognizes the names Yahoo and Microsoft, but everyone also says, “Did you Google it?” Such a catchphrase (時髦話) is going to be hard to beat.
Shaun Carney of Laurelville, Ohio
I think the merger (合并) will provide more competitions for Google. I don’t think the merger will allow Microsoft to develop faster than Google, though. I believe the increased competition this merger brings will force Google to stay on top of its game by offering more fresh and original Internet tools and expanding on the tools it already offers.
Toni Suarez of Hacienda Heights, California
I view the merger as a necessary element in preventing a monopolization (壟斷). Perhaps it would bring better high technology innovations to e-mail and help in researching and developing a better Internet!
Rick R. of Edgewater, Florida
It sounds like a disaster to me. If this were to happen, I would stop using my Yahoo e-mail account because I don’t like the feeling of Microsoft spying upon my business. I will sign up for Google.
Antonio Glosser of Kansas City, Missouri
Right now, Yahoo offers a lot of features and tools at no cost for all different levels of Internet users. Microsoft seeks nothing but profit. Undoubtedly, they’ll do nothing other than find ways to start removing Yahoo’s formerly non-priced features. Microsoft’s greed will ruin the great thing that Yahoo currently is.
小題1:How many companies are mentioned in the passage?
A.One.B.Two.C.Three.D.Four.
小題2:Which of the following statements is NOT true according to the passage?
A.Shaun’s attitude towards Google is passive.
B.Toni believes the Internet will have a promising future.
C.Rick will support Google after the merger.
D.Antonio is afraid that the merger will cost Yahoo’s free features.
小題3:The passage is mainly about ______.
A.opinions on the merger of Yahoo and Microsoft
B.the strengths of Yahoo and Microsoft
C.the strengths and weaknesses of large companies
D.the future of Yahoo and Microsoft

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科目:高中英語 來源:不詳 題型:閱讀理解

We might not be alone in the universe. Actually, it may be confirmed as a very crowded place by new computer models developed to help identify habitable planets.
Estimates of places where life can exist have been based on the possibility of them having surface water. But software recently developed by the Aberdeen University allows researchers to identify planets with underground water kept liquid by heat from planets.
Water is fundamental for life and planets too close to the sun lose water to the atmosphere through evaporation. On the other hand, planets located in distant reaches from their star have their surface water locked away as ice.
Sean McMahon, who is carrying out the work, explained: "Traditionally people have said that if a planet is in this Goldilocks zone—not too hot and not too cold—then it can have liquid water on its surface and be habitable."
But this concept might change when considering that planets can receive two sources of heat—heat direct from the star and heat generated deep inside the planet.
It is easy to observe it in our own planet. As you go down through the crust (殼) of the Earth, the temperature gets higher and higher. Even when the surface is frozen, water can exist below ground.
There could be immense quantities of water in fact—full of primitive life.
Professor John Parnell, also from Aberdeen University said: "There is a significant habitat for microorganisms below the surface of the Earth, extending down several kilometres".
"And some believe that the majority of life on Earth could even reside in this deep biosphere."
So the Aberdeen team are developing models to predict which distant planets might harbour underground reservoirs of liquid water with the possibility of alien life.
小題1:What is considered as the symbol of life existence traditionally?
A.Solid water on its surface.B.Solid water below ground.
C.Liquid water below ground.D.Liquid water on its surface.
小題2:Why did John Parnell mention the fact about Earth?
A.To prove that there is majority of life on Earth.
B.To prove that life may also exist in other planets.
C.To prove that there is primitive life down through Earth.
D.To prove that there is a habitat for microorganisms below Earth.
小題3:What theory is the Aberdeen team’s study based on?
A.Planets can lose water through evaporation.
B.Planets can receive heat direct from the star.
C.Planets can have their surface water locked away as ice.
D.Planets can receive heat generated deep inside the planet.
小題4:What can we know about the computer models?
A.They will help identify planets where there is life.
B.They will help researchers find Goldilocks zones.
C.They have helped find some significant discoveries.
D.They have already located some habitats for life.

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科目:高中英語 來源:不詳 題型:閱讀理解

The illegal ivory trade has been a major problem in Africa for decades. Poachers(偷獵者) and hunters have killed off hundreds of thousands of elephants to obtain this precious material. Now, affected areas are taking action. The International Union for Conservation of Nature (IUCN) announced on Wednesday that key states where poaching takes place have promised to stop the ivory trade and protect Africa’s elephants.
In the 1980s, as many as 1 million elephants across Africa were killed for their ivory tusks. This continued until 1989, when the Convention on International Trade in Species (CITES) voted to ban all trade in ivory. With trade choked off, demand for ivory fell. Elephant populations slowly began to increase. However, this progress was short-lived.
According to the IUCN, 2011 saw the highest levels of poaching and illegal ivory trading in at least 16 years. Around 25,000 elephants were killed in Africa that year. Preliminary data from the IUCN shows even higher levels of illegal trade may have been reached in 2013. “With about 22,000 elephants illegally killed in 2012, we continue to face a critical situation,” said John E. Scanlon, CITES Secretary-General. “Current elephant poaching in Africa remains far too high, and could soon lead to local extinctions if the present killing rate continues.”
At the African Elephant Summit, key African states where elephants make their home agreed to develop a “zero-tolerance attitude” towards poaching. The deal calls for maximum sentences for poachers and hunters, and increased cooperation between affected states. Officials are determined to classifying wildlife trading as a serious crime — and to making sure that the people who commit it are punished. All participants at the conference agreed to sign the deal. With these states coming together, there may yet be hope for elephants. (293 words)
小題1:What’s the best title for this passage?
A.New Hope for Elephants.B. Elephants are dying.
C.Elephants are valuable.D. How to protect elephants
小題2:The underlined phrase “choked off” in Paragraph 2 can be replaced by “________”.
A. appreciatedB. preventedC. admittedD. explored
小題3:Which of the following statements is NOT true according to the passage?
A.The CITES has helped to improve elephants’ situation ever since 1989.
B.Around one million elephants across Africa were killed for their ivory tusks in the 1980s.
C.The poaching and illegal ivory trading in 2011 were very serious.
D.The situation of elephants in 2012 was still terrible.
小題4: All of the following measures will be taken to protect elephants EXCEPT ________.
A.to identify wildlife trading a serious crime
B.to punish those who buy or sell wildlife belongings
C.to sentence all wildlife poachers and hunters to death
D.to work together to fight against wildlife hunting
小題5:What’s the main idea of this passage?
A.The illegal ivory trade has been a major problem in Africa.
B.Elephants in Africa may die out because of the illegal poaching.
C.Hunting elephants will be recognized as a very serious crime.
D.A new agreement aims to develop a “zero-tolerance attitude” towards poaching.

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