Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.
     If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering(不开花的) plants.
      Flowering plants can make seeds(种子). The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit.
    Most non-flowering plants do not grow from seeds. They grow from spores(孢子). Spores are very, very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores fall on wet and shady(阴凉的) places, they usually grow into new plants.

埃及位于非洲东北部，是一个著名的文明古国。

材料：林则徐的《四洲志》和魏源的《海国图志》中，对埃及穆罕默德∙阿里给予了关注，称阿里“甚聪明，尤灭弄权之骁骑”“军伍昔强、未娴纪律，近得欧罗巴训练之法，队伍雄甲东方”“近复设武备馆，延欧罗巴教师以训年少”“并设铸炮局、器械局、火药局”，对其收到“国势复振”的效果，大加赞赏。

依据材料归纳阿里改革的措施，分析林则徐和魏源赞赏阿里改革的原因。