问题 阅读理解

America is a mobile society. Friendships between Americans can be close and real,yet disappear soon if situations change. Neither side feels hurt by this. Both may exchange Christmas greetings for a year or two,perhaps a few letters for a while— then no more. If the same two people meet again by chance,even years later,they pick up the friendship. This can be quite difficult for us Chinese to understand,because friendships between us develop more slowly but then may become lifelong feelings,extending (延伸) sometimes deeply into both families.

Americans are ready to receive us foreigners at their homes,share their holidays,and their home life. They will enjoy welcoming us and be pleased if we accept their hospitality (好客) easily.

Another difficult point for us Chinese to understand Americans is that although they include us warmly in their personal everyday lives,they don’t show their politeness to us if it requires a great deal of time. This is usually the opposite of the practice in our country where we may be generous with our time. Sometimes,we,as hosts,will appear at airports even in the middle of the night to meet a friend. We may take days off to act as guides to our foreign friends. The Americans,however,express their welcome usually at homes,but truly can not manage the time to do a great deal with a visitor outside their daily routine. They will probably expect us to get ourselves from the airport to our own hotel by bus. And they expect that we will phone them from there. Once we arrive at their homes,the welcome will be full,warm and real. We will find ourselves treated hospitably.

For the Americans,it is often considered more friendly to invite a friend to their homes than to go to restaurants,except for purely business matters. So accept their hospitality at home!

小题1:Which of the following statements is TRUE according to the passage?  

A.Friendships between Americans usually extend deeply into their families.

B.Friendships between Americans usually last for all their lives.  

C.Americans always show their warmth even if they are very busy.  

D.Americans will continue their friendships again even after a long break.小题2: From the last two paragraphs we can learn that when we arrive in America to visit an American friend,we will probably be ______.

A.warmly welcomed at the airport

B.offered a ride to his home

C.treated hospitably at his home

D.treated to dinner in a restaurant小题3:The underlined words “generous with our time” in Paragraph 3 probably mean ______.

A.strict with time   

B.willing to spend time  

C.careful with time

D.serious with time小题4:A suitable title for this passage would probably be “______”.

A.Friendships between Chinese

B.Friendships between Americans  

C.Americans’hospitality

D.Americans’and Chinese’s views of friendships

答案

小题1:D

小题2:C

小题3:B

小题4:D

题目分析:短文大意:美国是一个流动的社会。美国人之间的友谊可以接近真实,然而如果情况变化很快消失。任何一方都不觉得受伤害。双方可能在一年或两年交换圣诞问候,也许通信一阵子之后就没有了。如果相同的两个人有再次见面的机会,甚至几年后,他们会继续他们的友谊。这可能对中国人来说是非常难理解,因为我们之间的友谊发展得慢但后来可能成为终身的感情。

小题1:细节理解题。根据If the same two people meet again by chance,even years later,they pick up the friendship.可知同两个人甚至数年后有机会再见面,他们还会继续他们的友谊,所以选D。

小题2:细节理解题,从最后两段可知,当我们去美国拜访我们的朋友时,我们很有可能在他家受到款待,所以选C。

小题3:词义猜测题。generous with our time 的意思是乐意跟我们花费时间,所以选B。

小题4:标题归纳题。本文在谈论中国和美国对友谊的观点不同,,所以选D。

实验题

图1所示是测量小灯泡电阻的实物连接图,其中电源是三节新的干电池,灯泡额定电压3.8V,灯丝正常发光时电阻约10 Ω,变阻器上标有“10 Ω 1A”的字样,电流表(0﹣0.6A、0﹣3A)、电压表(0﹣3V、0﹣15V).

(1)用笔画线代替导线将电路中未连接的部分连接好,使它成为完整的实验电路.要求电表选择合适的量程,滑动变阻器的滑片向右移动时,电路的电流减小.

(2)韦韦同学合理地连好电路,并按正确的顺序操作,但闭合开关试触发现灯不亮,聪明的韦韦猜想:

A.可能是灯丝断了

B.可能是滑动变阻器开路

C.可能是小灯泡短路

D.可能是电流表开路

现请你借助图中的电流表和电压表验证韦韦同学的猜想,并将电压表可能的示数填入下表空格处:

(3)①假如电压表“0﹣15V”量程已损坏,韦韦同学仍想测出小灯泡的额定功率,现请你帮她设计可行的电路图(画在方框内).

②按新设计的电路图调节滑动变阻器,使电压表示数达到 _________ V,小灯泡正常发光,此时电流表示数如图2所示,则小灯泡的电阻为____________Ω。

(4)佳佳同学看了韦韦同学同学的实验结果,交流了自己的想法,她认为在实验中应改变接入电路的滑动变阻器的阻值,使得灯泡两端的电压先后等于3.8V、3.5V、3V、2.5V,并得到相应的四组电流数据,如下表,请在图3中画出电流与电压的图象,通过图象分析灯泡的电阻值,找出电阻有什么规律,并分析可能的原因.

单项选择题 案例分析题