问题 选择题

关于物体的内能,下列说法中正确的是(  )

A.-20℃的冰块没有内能

B.一个物体的机械能越大,内能也越大

C.温度相等的一杯水和一桶水的内能相同

D.饮料放入冰箱内,饮料的温度降低,内能减小

答案

A、一切物体都有内能,故A说法错误;

B、机械能与物体的高度、速度以及形变程度有关,而内能与物质的种类、物质的量、物质的温度、物质的体积有关,故B说法错误;

C、因为一杯水和一桶水的质量不同,所以它们具有的内能不相同,故C说法错误;

D、同一物体,温度越高,内能越大,温度越低,内能越小,故D说法正确.

故选D.

填空题
写作题

第二节:读写任务(共1小题,满分25分)

阅读下面的短文,然后按照要求写一篇150词左右的英语短文。

Years ago in Scotland Clark and his wife worked and saved, making plans for their family to travel to the United States. Finally they had saved enough money and gotten passports. The entire family were filled with excitement. However, before their departure, the youngest son was bitten by a dog. The doctor sewed up(缝合) the boy but hung a yellow sheet on the Clarks’ front door. Because of the possibility of rabies(狂犬病), they were separated for fourteen days.

The family’s dream was dashed(破灭). They would not be able to make the trip to America as they planned. The father, filled with disappointment and anger, wept bitter tears and cursed(咒骂)both his son and God for their misfortune.

Five days later, the tragic(悲剧的,悲惨的) news spread throughout Britain — Titanic, which was on her maiden(首次的) voyage on April 14,1912, had sunk, taking hundreds of lives with it. The Clark family should have been on that ship, but because the son had been bitten by a dog, they were left behind.

When Mr. Clark heard the news, he hugged his son and thanked him for saving the family. He thanked God for turning what he had felt was a tragedy(悲剧,惨剧) into a blessing(赐福,幸事).

[写作内容]

1) 以约30个词概括短文的要点;

2) 然后以约120个词写一篇记叙文,描写你或你的朋友因祸得福的一次经历,并包括以下要点:

a) 叙述你或你的朋友因祸得福的一次真实或虚构的经历;

b) 谈谈这次经历对你或你的朋友的影响。

[写作要求]

1. 可以参照阅读材料的篇章结构,组织故事,但不得直接引用原文中的句子;

2. 标题自定。

[评分标准]概括准确,语言规范,内容合适,篇章连贯。