题目内容：

    I first visited China in 1979, a few months after our countries normalized relations. China was just beginning to remake its economy, and I was in the first Senate Delegation (参议院代表团)to witness it. Traveling through the country last month, I could see how much China had changed in 32 years.

Then , as now there were concerns about what a growing China meant to America and the world. Some here see China's growth as a threat. Some Chinese worry our aim in the Asia-Pacific is to contain China's rise. I don't agree to these views. We are clear about concern like China's growing military abilities. That is why we are working with the Chinese military to understand and shape their thinking. It is why the president has directed the United States to keep a strong position in the area. I am sure that a successful China can make our country more prosperous(繁荣的),not less. We share common challenges and responsibilities. The Chinese leaders I met with know their country must shift from an economy driven by exports, investment and heavy industry to one driven more by consumption and services. As Americans save more and Chinese buy more, this change will speed up, opening opportunities for us. Even as the United States and China cooperate, we also compete. I strongly believe that the United States can and will benefit from this competition.

Maybe more important, the nature of 21st century competition favors the United States. In the 20th century, we measured a nation's wealth mainly by its natural resources, its land mass, its population and its army. In the 21st century, the true wealth of a nation is found in the creative minds of its people and their ability to innovate (创新).As I told students in Chengdu, the United States is born for innovation. Competition is the base of our society. We owe our strength to our political and economic system and to the way we educate our children. We not only tolerate but celebrate free expression and debate. Our universities remain attractive to the world's students and scholars.

Fundamental rights are universal. Liberty unlocks a people's full potential , while its absence causes unrest. Open and free societies are best at promoting long-term growth. We have our own work to do. We need to ensure that any American willing to work can find a good job. We need to keep attracting the world's top talent. I've traveled half a million miles around the world. I always come home feeling the same confidence in our future . Some may warn of America's failure, but I'm not among them. And let me reassure you : based on my time in China, neither are the Chinese.

1.In the author's eyes,          .

A.the growing China has become a threat to America.

B.there's only competition between China and America.

C.Chinese universities have surpassed American ones.

D.a bright future is waiting for both China and America.

2.After reading the passage, we can infer this passage is a (an)____.

A.speech B.notice C.announcement D.script

3.The author's opinion of the cooperation between China and America is____.

A.critical B.optimistic C.pessimistic D.indifferent

4.According to the passage, the author may be a (an)         .

A.senior official of America B.businessman of China

C.senior official of China D.actor of America