问题 不定项选择

如图所示,R1,R2为可调电阻,R3为一般电阻,R4为热敏电阻。当环境温度升高时,下列说法中正确的是

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A.电容器所带电量减小

B.若R1的阻值减小,电容器的带电量可能保持不变

C.若R2的阻值增大,电容器的带电量可能保持不变

D.若R2的阻值减小,电流表的示数可能保持不变

答案

答案:D

阅读理解

Young people and older people don’t always agree. They sometimes have different ideas about living, working and playing. But in one special programme in New York State, adults and teenagers live together in a friendly way.

Each summer 200 teenagers and 50 adults live together for eight weeks as members of a special work group. Everyone works several hours each day. They do so not just to keep busy but to find meaning and enjoyment in work. Some teenagers work in the woods or on the farms near the village. Some learn to make things like tables and chairs and build houses. The adults teach them these skills.

There are several free hours each day. Weekends are free, too. During the free hours some of the teenagers learn photo taking or painting. Others sit around and talk or sing. Each teenager chooses his own way to spend his free time.

When people live together, rules are necessary. In this programme the teenagers and the adults make the rules together. If someone breaks a rule, the problem goes before the whole group. They talk about it and ask, “Why did it happen? What should we do about it?”

One of the teenagers has this to say about his experience, “You stop thinking only about yourself; you learn to think about the group.”

小题1:In one special programme in New York State, young and older people _______ .

A.don’t work well together.

B.are friendly to one another.

C.teach one another new ways of building houses.

D.spend eight weeks together, working as farmers..小题2:All the members work some time every day mainly to _______ .

A.lead a busy life.

B.learn new skills of farming;

C.get used to the life on the farms

D.find value and pleasure in work小题3:Living together, _________ .

A.the teenagers don’t have to obey the rules

B.the teenagers have to obey the rules the adults make

C.the members have no free time on weekends

D.the members are not allowed to break the rules they make together小题4:The last programme shows that the teenager thinks his experience in the programme is ____ .

A.unpleasant

B.tiring

C.helpful

D.boring小题5:The best title for the passage is __________ .

A.The rules of living together

B.Life in New York State

C.Teenagers in the special group

D.Free hours in the special work group

问答题 简答题