the figure shows a position-versus-time graph of the motion of a car. describe the velocity and acceleration during segments oa, ab, and bc. which item is not correct？

Abebe Bikila is mentioned in Paragraph 1 to

A．show how poor the people then were.

B．tell us that he was from an undeveloped country.

C．introduce the topic of the passage.

D．remind us of the past time.

Which of the following best describes how the writer feels about stage schools?

A．He favours an early start in the training of performing arts.

B．He feels uncomfortable about children putting on night shows.

C．He thinks highly of what they have to offer.

D．He doubts the standard of ordinary education they have reached.

(1) Describe the picture。

(2) Show your understanding of the symbolic meaning of the picture below。

(3) Give your opinions or advice。

You should write at least 150 words neatly on ANSWER SHEET. (15points)

The figure above shows the shape of a brick patio. If arc AB is a semicircle and ABCD is a square, what is the perimeter of the patio?

(1) The radius of the semicircle described by arc AB is 4.

(2) The perimeter of the square ABCD is 32.

The key to these questions is the emotional response we call anxiety. Unlike hunger or thirst, which build and dissipate (驱散) in the immediate present, anxiety is the sort of feeling that sneaks up on you from the day after tomorrow. It's supposed to keep you from feeling too safe. Without it, few of us would survive.

All animals, especially the small, scurrying kind, appear to feel anxiety. Humans have felt it since the days they shared the planet with saber-tootbed tigers. But we live in a particularly anxious age. The initial shock of Sept. 11 has worn off, and the fear has lifted, but millions of Americans continue to share a kind of generalized mass anxiety. A recent TIME/CNN poll found that eight months after the event, nearly two-thirds of Americans think about the terror attacks at least several times a week. And it doesn't take much for all the old fears to come rushing back. What was surprising about the recent drumbeat of terror warnings was how quickly it triggered the anxiety so many of us thought we had put behind us.

This is one of the mysteries of anxiety. While it is a normal response to physical danger-- and can be a useful tool for focusing the mind when there's a deadline looming (或隐或现)-- anxiety becomes a problem when it persists too long beyond the immediate threat. Sometimes there's an obvious cause, as with the shell-shocked soldiers of World War I or the terror-scarred civilians of the World Trade Center collapse. Other times, we don't know why we can't stop worrying.

There is certainly a lot of anxiety going around. Anxiety disorder --which is what health experts call any anxiety that persists to the point that it interferes with one's life --is the must common mental illness in the U.S. In its various forms, ranging from very specific phobias (恐惧症) to generalized anxiety disorder, it afflicts 19 million Americans.

And yet, according to a survey published last January by researchers from UCLA, less than 25% of Americans with anxiety disorders receive any kind of treatment for their condition. "If mental health is the stepchild of the health-care system," says Jerilyn Ross, president of the Anxiety Disorders Association of America, "then anxiety is the stepchild of the stepchild."

Sigmund Freud was fascinated with anxiety and recognized early on that there is more than one kind. He identified two major forms of anxiety: one more biological in nature and the other more dependent on psychological factors. Unfortunately, his followers were so obsessed with his ideas about sex drives and unresolved conflicts that studies of the physical basis of anxiety languished (减退).

What can be the most suitable title of this passage?

A．The Origin of Anxiety.

B．The Hazards of Anxiety.

C．Healing Anxiety.

D．Understanding Anxiety.

The key to these questions is the emotional response we call anxiety. Unlike hunger or thirst, which build and dissipate (驱散) in the immediate present, anxiety is the sort of feeling that sneaks up on you from the day after tomorrow. It's supposed to keep you from feeling too safe. Without it, few of us would survive.

All animals, especially the small, scurrying kind, appear to feel anxiety. Humans have felt it since the days they shared the planet with saber-toothed tigers. But we live in a particularly anxious age. The initial shock of Sept. 11 has worn off, and the fear has lifted, but millions of Americans continue to share a kind of generalized mass anxiety. A recent TIME/CNN poll found that eight months after the event, nearly two-thirds of Americans think about the terror attacks at least several times a week. And it doesn't take much for all the old fears to come rushing back. What was surprising about the recent drumbeat of terror warnings was how quickly it triggered the anxiety so many of us thought we had put behind us.

This is one of the mysteries of anxiety. While it is a normal response to physical danger — and can be a useful tool for focusing the mind when there's a deadline looming (或隐或现) — anxiety becomes a problem when it persists too long beyond the immediate threat. Sometimes there's an obvious cause, as with the shell-shocked soldiers of World War I or the terror-scarred civilians of the World Trade Center collapse. Other times, we don't know why we can't stop worrying.

There is certainly a lot of anxiety going around. Anxiety disorder — which is what health experts call any anxiety that persists to the point that it interferes with one's life — is the most common mental illness in the U.S. In its various forms, ranging from very specific phobias (恐惧症) to generalized anxiety disorder, it afflicts 19 million Americans.

And yet, according to a survey published last January by researchers from UCLA, less than 25% of Americans with anxiety disorders receive any kind of treatment for their condition. "If mental health is the stepchild of the health-care system," says Jerilyn Ross, president of the Anxiety Disorders Association of America, "then anxiety is the stepchild of the stepchild."

Sigmund Freud was fascinated with anxiety and recognized early on that there is more than one kind. He identified two major forms of anxiety: one more biological in nature and the other more dependent on psychological factors. Unfortunately, his followers were so obsessed with his ideas about sex drives and unresolved conflicts that studies of the physical basis of anxiety languished (减退).

What can be the most suitable title of this passage?

A．The Origin of Anxiety.

B．The Hazards of Anxiety.

C．Healing Anxiety.

D．Understanding Anxiety.

The figures about the US, Europe and Japan in Paragraph 3 show that from 2001______.

A．workers' wages in Japan keep decreasing

B．workers' wages in the US increase faster than the profits

C．workers' share of national income in Western Europe has been dropping

D．workers' wages in these countries take a smaller portion of the national income

What is the role of the 3rd paragraph in the development of the topic?

A．Giving supportive details on Bluetooth LE"s strengths.

B．Showing examples of how well Bluetooth LE is accepted.

C．Illustrating the bright future of Bluetooth LE.

D．Explaining how Bluetooth makes its way into big companies.