问题 填空题

在某一温度下,两个A和B电阻中的电流与其两端电压的关系如图8所示。则由图可知,元件A的电阻为     Ω;将A和B并联后,测得电阻B两端的电压为2V,则干路上的总电流是     A。

答案

5   0.6

(1)由图表知:A元件两端电压为U=1.5V时,通过的电流为I=0.3A,

所以元件A的电阻为:

RA═U/I=1.5V/0.3A=5Ω.

(2)由图表知:当电源电压为2V时,通过A元件的电流为IA=0.4A,通过B元件的电流为IB=0.2A,

所以干路总电流为:

I=IA+IB=0.4A+0.2A=0.6A.

故答案为:5,0.6.

完形填空

Directions: Read the following passage. Answer the questions according to the information given in the passage.

“Let’s Talk”:The Free Advice Project

A few weeks ago, I took a walk around Washington Square Park. I met all the usual people:street performers, the Pigeon Guy, a group of guitarists singing in harmony. But off to the side, sitting on a bench was a woman doing something vastly different—giving free advice.

A week or two later, I set up an interview with her and we discussed her project at length.

Lisa Podell, 32, started the Free Advice Project this past May. It began as an experiment;she sat in Washington Square Park for a day with a sign that read “Free Advice” as a simple way to reach out to people. Podell was astonished at the strong response.

Podell admits that she was doubtful at first, but now she describes the project as mutually (相互地) beneficial. People learn from her—but she also learns from them. She says that the majority of those who come to her are dealing with some pretty heavy issues, and they expect her not only to listen, but also provide real answers.

Having worked as a full time teacher and now as an adolescent advisor, Podell believes that talking things out is an important in the decision-making process.

Sometimes, people walk around all day, keeping their problems in their own head and thinking about them in the same way. Podell simply strives to provide people with perspective.

I asked if there is a future plan for the Free Advice Project. Podell said she would like to promote it to each public space in New York, which would be carried out by various volunteers across the city. 

It was truly inspiring to meet someone with such a big heart, especially in New York—where it is sometimes very hard to find anybody to listen. (303 words)

小题1:In what way was Podell different from other people in the park? (No more than 6 words)  (2 marks)

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小题2:What do people in need expect Podell to do? (No more than 10 words)  (3 marks)

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小题3:According to Podell, what should people do when making decisions?

(No more than 6 words)  (2 marks)

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小题4: How would Podell promote her project in New York?  (No more than 15 words)  (3 marks)

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