[简答题]Our greatest challenge is to show that these problems are part of an even bigger problem -- the problem of global poverty and underdevelopment.

[简答题]Climate change is the greatest challenge facing humanity: drastic reduction of carbon emissions is vital if we are to avoid a catastrophe that devastates large parts of the world. Governments and businesses have been slow to act and individuals now need to take the lead.
The Earth can absorb no more than 3 tons of carbon dioxide emissions each year for every person on the planet if we are to keep temperature and rainfall change within tolerable limits. Yet from ears and holiday flights to household appliances and the food on our plates, Western consumer lifestyles leave each of us responsible for over 12 tons of carbon dioxide a year—four times what the Earth can handle.
Individual action is essential if we want to avoid climate chaos. How to Live a Low-Carbon Life shows how easy it is to take responsibility, providing the first comprehensive, one-stop reference guide to calculating your CO₂ emissions and reducing them to a sustainable 3 tons a year.

[单项选择]The greatest challenge in delivering food to people who need it is to
A. raise the resources and delivering food to poor people.
B. convince people to contribute more food and money.
C. help people improve their well-being over the long term.
D. devote more energy to those who are still most at risk.

[单项选择]
The Olympic Games are the greatest festival of sport in the world. Every four years, a hundred or more countries send their best sportsmen to compete for the highest honors in sport As many as 6,000 people take part in over 20 sports. For the winners, there are gold medals and glory. But there is honor, too, for all who compete, win or lose. That is the spirit of the Olympics-to take part is what matters.
The Olympic Games always start in a bright color and action. The teams of all the nations parade in the opening ceremony and march round the track. The custom is for the Greek team to march in first. For it was in Greece that the Olympics began. The team of the country where the Games are being held-the host country-marches in last.
The runner with the Olympic torch then enters the stadium and lights the flame. A sportsman from the host country takes the Olympic oath on behalf of all the competitors.
A. Because failure is the mother of the success.
B. Because losers need encouragement, too.
C. Because losers and winners should be equally treated.
D. Because what really matters is to take part in the Olympic Games.

[单项选择]What’s the world’s greatest moral challenge, as judged by its capacity to inflict human tragedy It is not, I think, global warming, whose effects—if they become as grim as predicted—will occur over many years and provide societies time to adapt. A case can be made for preventing nuclear proliferation, which threatens untold deaths and a collapse of the world economy. But the most urgent present moral challenge, I submit, is the most obvious: global poverty.
The solution to being poor is getting rich. It’s economic growth. We know this. The mystery is why all societies have not adopted the obvious remedies. Just recently, the 21-member Commission on Growth and Development examined the puzzle. Since 1950, the panel found, 13 economies have grown at an average annual rate of 7 percent for at least 25 years.
The panel identified five common elements of success: Openness to global trade and, usually, an eagerness to attract foreign investment; political stability and "capable" gov
A. Global warming.
B. Global poverty.
C. Nuclear proliferation.
D. All of the above.

[简答题]Our greatest responsibility is the active defense of the American people. Twenty-eight months have passed since September 11th, 2001 - over two years without an attack on American soil. And it is tempting to believe that the danger is behind us. That hope is understandable, comforting - and false. The terrorists continue to plot against America and the civilized world. And by our will and courage, this danger will be defeated.
Inside the United States, where the war began, we must continue to give our homeland security and law enforcement personnel every tool they need to defend us. And one of those essential tools is the Patriot Act, which allows federal law enforcement to better share information, to track terrorists, to disrupt their cells, and to seize their assets. For years, we have used similar provisions to catch embezzlers and drug traffickers.