0  265367  265375  265381  265385  265391  265393  265397  265403  265405  265411  265417  265421  265423  265427  265433  265435  265441  265445  265447  265451  265453  265457  265459  265461  265462  265463  265465  265466  265467  265469  265471  265475  265477  265481  265483  265487  265493  265495  265501  265505  265507  265511  265517  265523  265525  265531  265535  265537  265543  265547  265553  265561  447090 

5.What does the man think that the woman has been downtown to do?

    A.Buy a pair of shoes.                      B.Buy a dress for herself.   C.Buy him a dress.

试题详情

4.What is the man going to do in the afternoon?

    A.Get some sleep.    B.Visit the Great Wall.      C.See a doctor.

Conversation 3

试题详情

3.What can we know about the woman?

    A.She’s a Chinese living in Beijing. 

    B.She’s a foreign visitor who has just arrived in Beijing.

    C.She’s a foreigner who has been staying in Beijing.

试题详情

2.What advice does the man give to the woman?

    A.Talking more with foreign speakers.

    B.Practicing listening and finding a person to write to.

    C.Watching some English programs on TV

Conversation 2

试题详情

1.What does the woman think is hardest in English?

    A.Listening            B.Speaking         C.Writing

试题详情

23.(1)BD(2分)(2)①A(2分)、C(2分)、F(2分)

②如图所示(4分,电路图有一处接错者不得分)

 

试题详情

23.(1)1.998(或1.997;1.999)(2分)1.094(2分)

  (2)①如图a(2分)

②如图b(2分)

   

(2分).式中U为电压表的示数,I为电流表的示数,R1为电阻箱的示数.

(1分)

④电阻箱的阻值调到最大;或使滑动变阻器所分的电压为零;等。(1分)

2010德州一模:

试题详情

23.(12分)

  (1)①平行(1分)  远小于(1分)

∝x或(2分)

  (2)①a实验电路如图所示(3分)

b29.5W~30.4W(2分)

②当电压低于250V时,压敏电阻上流过的电流几乎是零,即电阻可看作无限大,压敏电阻对电路几乎无影响,变压器正常工作。(1分)

当电源电压突然升高,高于250V时,流过该电阻电流会迅速增大,电阻几乎为零,使得a、b两点短路,这时保险丝立即熔断,电源被切断,保护了变压器的安全。(2分)

2010济宁一模:

试题详情

11.(1)(4分)AB

(2)(9分)①2.000mm(2分)    ②5Ω (2分),连线如图(1分)

③(4分)

(评分标准:正确选出并在图中画出电流表A1及电压表V1的各得1分,A1采用外接的得1分,滑线变阻器采用分压式接法的得1分。)

2010聊城一模:

试题详情

23.(1)① (或)(2分)

②验证机械能守恒(或外力做功与物体动能

变f{:的关系)(2分)

(2)①(3分)

②a.增大(2分) b.增大(2分)

2010临沂一模:

试题详情


同步练习册答案