题干

关于晶体的说法正确的是(   )

A:若晶体熔融状态下能导电,该晶体一定是离子晶体

B:若晶体熔化时化学键断裂,该晶体一定是原子晶体

C:若晶体中含有非极性分子,该晶体可能有较低的熔沸点

D:若晶体中含有极性共价键,该晶体不可能有很高的熔沸点

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C

同类题1

请认真阅读下列短文,并根据所读内容在文章后表格中填入一个最恰当的单词。注意:每个空格只填1个单词。

    Claude Monet's paintings were quite different from the art styles that were popular in the 1870s France. Traditional artists always did their artwork in a studio and their paintings were realistic-they looked exactly like the real world. Claude Monet was part of a group of painters who were called Impressionists(印象派画家). Their paintings were light and a bit fuzzy-they gave an impression of what the real world looked like. Sometimes Impressionists worked outside, which was a very unusual thought in their time. Impressionism received its name from an early painting by Claude Monet titled impression, Sunrise.

    Knowing that trains were interesting subjects and represented modern progress, Claude Monet crated a series of Impressionist paintings of trains from January to March of 1877. He worked on his paintings right on the train platform at the Gare Saint-Lazare, the train station on Saint Lazare Street. Although there were many train stations in Paris, this was the first train station built in Paris so it had historical significance(意义).

    Monet's friend, Impressionist painter Pierre Auguste Renoir, told the following story to his sons about Claude Monet and painting the trains. Monet needed permission(允许)to spend time on the train platform and paint what he saw in his impressionistic style. One day Monet dressed himself in his very best suit along with a fine top hat, a good linen shirt and a silk tie. He appeared to be a wealthy gentleman while he really was a poor painter.

    When he went towards the clerk at the train office, he presented his calling card which introduced him as Claude Monet, Painter. He asked to see the station master. The clerk quickly allowed this fine gentleman to enter the station master's office. The station master was also impressed and gave Monet permission to paint on the train platform. The station master even kept trains from leaving on time so Monet could complete a scene even though passengers complained.

    Was it all worthwhile(值得)? Monet's train scenes turned his career into a success and for the station master, made his train station famous until even now.

Claude Monet

Introduction

◆Claude Monet was one of the Impressionist painters whose paintings were not the ____as the popular art styles in the 1870s France.

◆Impressionist paintings gave an impression of____the real world looked.

◆He helped Impressionism get its ____by his painting Impression, Sunrise.

A ____of painting trains

◆At that time trains were subjects that could keep people's ____and represented modern progress.

◆He created paintings of trains ____January and March in 1877, at the train station with the longest ____in Paris.

◆He dressed himself as a wealthy gentleman to win the station master's ____.

◆In order to help Monet complete a scene, the station master even made trains leave ____than they should do.

Result

◆His train scenes made not only his career ____but also the train station famous.