23．A．puzzled　　　　　　　　　 B．annoyed　　　　　　　　　 C．embarrassed　　　　　　 D．shocked

22．A．now that　　　　　　　　 B．so that　　　　　　　　　　 C．as if　　　　　　　　　　　 D．even if

Passage 1

(09·浙江)

The trip to that city was eye-opening for everyone, and near its end , all the young people in our group began to reflect on what it had meant. We __21__ the first night we had arrived. We had all gone into the markets of the city __22__ the young people could experience its energy. But what we actually saw simply 　23　 us all –the rundown houses, the children in rags, the people begging for money… Walking home,　 24　 　under a low bridge, we came across　 25　 　families of homeless people seeking a bit of dry ground to sleep on　 26　 　he night. We had to step over bodies as we found our way through the darkness.

The poverty(贫困) was　 27　 　than anything my young companions had ever imagined. Back in the hotel, an air of sadness settled over the group. Many　 28　 　and cried. Spending time in this　 29　 　moves a person to care about humanity.

That evening, our group spent hours talking about what we had　 30　 . Gently, I encouraged everyone to talk about the difficult　 31　 　that day’s discoveries had inspired. Sitting together　 32　 　a circle as everyone had a chance to speak, we all began to realize that　 33　 　of us was alone in our struggle to cope with our reactions.

Based on my　 34　 　in poverty-stricken areas, I suggested that　 35　 　the emotions we had were painful, they could also be important in helping us to move forward. We all　 36　 　that we had seen things that should never be allowed to happen.　 37　 　, what could we do about it? Together, we began to brainstorm ways we could help to ease the　 38　 　we had seen. As I encouraged group members to focus on　 39　 　they could do, a sense of determination　 40　 　the previous sadness. Instead of despair, these young people began to feel a call to action.

21．A．put up with　　　　　　 B．got back to　　　　　　　 C．looked back on　　　　 D．made up for

1．　　　　 　

6.(1) P_1m=1/3 W　 W=Q= E_有²/R_并×t = 0.5/2×0.6 = 0.15 J

5.n₁／n₂ =U ₁／U₂ =350／2800 =1／8

n₃／n₄ =U₃／U₄ =2660／220　 ≈ 12／1

4. Q=π B² ωL⁴ ／4R　 电量q=BL²/R　 W= B²ω²L⁴ t / 2R

3.ABC

2.AD

1.ACD