题目

下列关于细胞学说建立过程的叙述，正确的是（ ） A．荷兰的列文虎克发现并命名了细胞 B．细胞学说揭示了生物界的统一性和差异性 C．施莱登和施旺提出 “ 一切真核、原核生物都是由细胞组成的 ” D．德国的魏尔肖总结出 “ 所有的细胞都必定来自已存在的细胞 ” 答案：D【分析】 细胞学说揭示了细胞统一性和生物体结构的统一性，内容包括： 1、细胞是一个有机体，一切动植物都由细胞发育而来，并由细胞和细胞产物所构成； 2 、细胞是一个相对独立的单位，既有它自己的生命，又对与其他细胞共同组成的整体的生命起作用； 3 、新细胞可以从老细胞产生。 【详解任务型阅读。阅读以下内容，并完成句子，每空词数不限。Do some colours make you feel calm while others give you energy? Scientists have studied the connection between colours and mood for a long time. Many believe that colour can influence our moods.Warm, bright colours such as yellow and red are positive colours. They can give people a pleasant feeling. Cool colours such as blue, purple, and green are relaxing colours. They help people experience calm feelings.Many public places are decorated with certain colours in order to create certain moods. Orange makes people feel hungry, and many restaurants are painted this colour.People use colour in their homes to create moods as well. Blue is a peaceful colour. It helps you rest, so it is a very good colour for a bedroom.Colours can create bad moods too. Some types of blue make people feel sad. Red can make people feel angry.What is your mood right now? Now look at the colour of the walls round you. Does it match your mood?（1）Cool colours are relaxing colours and they help people experience .（2）Orange makes people, and many restaurants are painted this colour.（3）People use colour in their homes to as well.（4）Some types of make people feel sad.（5）This passage mainly tells us how colour .