0  426202  426210  426216  426220  426226  426228  426232  426238  426240  426246  426252  426256  426258  426262  426268  426270  426276  426280  426282  426286  426288  426292  426294  426296  426297  426298  426300  426301  426302  426304  426306  426310  426312  426316  426318  426322  426328  426330  426336  426340  426342  426346  426352  426358  426360  426366  426370  426372  426378  426382  426388  426396  447090 

6、----   

----I had a great time, too.I’ll call you this week and perhaps we can go out again next weekend.

A、Thank you for a lovely evening      B、Did you have a good time?

C、A lovely evening,isn’t it?        D、How did you spend this weekend?

试题详情

5、----You speak very good English.

----   .

A、And so do you   B、Far from very good   

C、Worse than you do    D、Thanks for your praise

试题详情

4、----The book isn’t easy for Jack to understand,is it?

----    .His foreign language is far better than expected.

A、No,it isn’t    B、I’m afraid not    C、I don’t think so    D、Yes,it is

试题详情

3、----May I take your order now?

----   

----OK,I’ll come back in a few minutes.

A、Could you bring us the bill?    B、Sure,we’d love to

C、Yes,here it is.Thank you.      D、No,we need more time

试题详情

2、----Hi,Jack!I’m glad I came across you here.

----    ,Alice?

A、Who is that speaking     B、How about another cup of tea

C、Why?What’s up       D、What can I do for you

试题详情

1、----Would you mind my opening the door?

----Oh,    .

A、you’re welcome    B、I think so    C、that’s all right    D、not at all

试题详情

(15) 已知函数的图象过点P(0,2),且在点M处的切线方程为.

 (Ⅰ)求函数的解析式;

(Ⅱ)求函数的单调区间.

(16) 已知函数处取得极值.

(Ⅰ)讨论是函数的极大值还是极小值;

(Ⅱ)过点作曲线的切线,求此切线方程.

(17) 已知向量在区间(-1,1)上是增函数,求t的取值范围.

(18) 已知是函数的一个极值点,其中

(I)求的关系式;

(II)求的单调区间;

(III)(理科做)当时,函数的图象上任意一点的切线斜率恒大于3,求的取值范围.

试题详情

(11)设f(x)= x|x|, 则f′(  0)=     .

(12)函数在闭区间[-3,0]上的最大值、最小值分别是      .

(13)若曲线y=h(x)在点P(a, h(a))处的切线方程为2x+y+1=0,则与0的大小关系是     0

(14)过原点作曲线的切线,则切点的坐标为      ,切线的斜率为     .

试题详情

(1) 下列求导运算正确的是                      (    )

A.(x+         B.(log2x)′= 

C.(3x)′=3xlog3e          D. (x2cosx)′=-2xsinx  

(2) 函数yx2+1的图象与直线yx相切,则=           (    )

A.       B.      C.       D.1

(3) 函数是减函数的区间为             (    )

A.  B.    C.       D.(0,2)

(4) 函数已知时取得极值,则= (    )

A.2        B.3      C.4       D.5

(5) 在函数的图象上,其切线的倾斜角小于的点中,坐标为整数的点的个数是      (    )

   A.3       B.2        C.1        D.0

(6) 设f0(x) = sinxf1(x)=f0′(x),f2(x)=f1′(x),…,fn+1(x) = fn′(x),n∈N,则f2005(x)=   (    )

A.sinx       B.-sinx     C.cosx      D.-cosx

(7) 已知函数的图象如右图所示(其中 是函数的导函数),下面四个图象中的图象大致是 (    )

(8)设在[0, 1]上的函数f(x)的曲线连续, 且f′(x)>0, 则下列一定成立的是 (    )

A. f(0)<0    B. f(1)>0     C. f(1)> f(0)     D. f(1)<f(0) 

(9)设f(x)、g(x)分别是定义在R上的奇函数和偶函数,当x<0时,>0.且g(3)=0.则不等式f(x)g(x)<0的解集是  (    )

A.  (-3,0)∪(3,+∞)        B.  (-3,0)∪(0, 3)

   C.  (-∞,- 3)∪(3,+∞)       D.  (-∞,- 3)∪(0, 3)

(10)若的大小关系                (    )

   A.   B.   C.    D.与x的取值有关

试题详情


同步练习册答案