问题 选择题

关于比热容,下列说法中正确的是(  )

A.物体的比热容跟物体吸收和放出的热量有关

B.物体的比热容与物体的温度有关

C.物体的比热容与跟物体的质量有关

D.物体的比热容是物体的一种属性,与温度、质量都没有关系

答案

A、比热容大的物体不一定吸热,更不要说吸收热量的多少,所以A错;

B、比热容的大小和物体的温度无关,所以B错;

C、比热容的大小和物体的质量无关,所以C错;

D、物体的比热容与物质的种类和物体的状态有关,与物体的温度、质量是无关的,所以D是正确的.

故选D.

阅读理解

I recall my mother’s voice which called me to order, and often ended with some strong proverb to express the gravity of the wrong done. It was common practice for my mother to send me off soul-searching with a proverb.

Of the many interactions I had with my mother those many years ago, one stands out with clarity. I remember the occasion when Mother sent me to the main road, about twenty yards away from the farmhouse, to invite a passing group of seasonal work-seekers home for a meal. She instructed me to take a container along and collect dry cow dung (牛粪) for making a fire. I was then to prepare the meal for the group of work-seekers.       

The thought of making an open fire outside at midday, cooking in a large three-legged pot in that high heat, was enough to upset even an angel. I did not manage to hide my feelings from my mother, and after serving the group, she called me to the balcony, where she usually sat to attend to her sewing (缝纫).

Looking straight into my eyes, she said, “Tsholofelo, why were you so unhappy when I requested you to prepare a meal for those poor people?” Despite my attempt to deny her allegation (断言), and using the heat of the fire and the sun as an excuse for my alleged behavior, Mother, giving me a firm look, said, “A foot has no nose.” It means, “You can’t detect what trouble may lie ahead of you.” Had I denied the group of people a meal, it may have happened that, in my travels some time in the future, I found myself at the mercy of those very individuals. As if that was not enough to shame me, Mother continued, “A person is a person because of another person.”   

小题1:We learn from the passage that Tsholofelo’s mother often _____.   

A.quoted proverbs when she was talking with others

B.asked Tsholofelo to read more proverbs

C.collected proverbs in her spare time

D.used proverbs to teach Tsholofelo小题2:What was Tsholofelo’s attitude towards the meal?

A.Unwilling.

B.Interested.

C.Critical.

D.Unconcerned.小题3:The atmosphere on the balcony was probably _____.

A.very strange

B.a bit tense

C.quite lively

D.pretty relaxed小题4:According to the passage, Tsholofelo’s mother seemed to hope Tsholofelo could be _____.    

A.flexible and creative

B.sincere and honest

C.active and confident

D.sympathetic and helpful

单项选择题