5．函数处的切线方程是　 　　　　　　 (　　 )

A．　　 B．　

C．　 D．

4. 函数y = (2x+1) ³在x = 0处的导数是　　　　　　　　　　　　　 (　　 )　　

A.0　　　 　　　 B.1　　　 　　　　C.3　　　　　 　　　　 D.6

3. 已知函数在处的导数为1，则 　(　　 )　　　　　　　　　　　　

A．3　　　　　　　 B．　　　　　　　 C． 　　　　　　D．

2. 已知函数在处的导数为3，则的解析式可能为　　　 (　　 )　　　

A．(x - 1)³+3(x - 1)　　 B．2(x - 1)²　　　　 C．2(x - 1)　　　　　 D．x - 1

1. 已知函数f (x ) = a x ² +c,且=2 , 则a的值为　　　　　　　　　 (　　 )　

A.1　　　　　　 　　　　 B.　　　　　　　 C.－1　　 　　　　　　 D. 0

4. What does the author suggest about the arts in the last paragraph?

A. They express people's curiosity about the past.

B. They make people interested in everyday experience.

C. They are considered important for variety in form.

D. They are regarded as a mirror of the human situation.

3. What is the author's opinion of artistic reality?

A. It will not be found in future works of art.

B. It does not have a long-lasting standard.

C. It is expressed in a fixed artistic form.

D. It is lacking in modern works of art.

2. Leslie's paintings are extraordinary because_______ .

A. they are close in style to works in ancient times

B. they look like works by 19th-century painters

C. they draw attention to common things in life

D. they depend heavily on color photography

1. The underlined word “poetry” most probably means __________.

A. an object for artistic creation 　　　　　　　　　　　 B. a collection of poems

C. an unusual quality 　　　　　　　　　　　　　　　　　　　　 D. a natural scene