16 Amazing Cells-High

Amazing Cells FOCUS Question Why are there so many different kinds of cells?

神奇的细胞焦点问题为什么有这么多不同种类的细胞?

All plants and animals are made of the same thing. Cells! Your whole body is made of cells, from your head to your toes! Some living things have only one cell. Other living things have many cells. Word Wise The word cell sounds the same as the word sell.

所有的植物和动物都是由同一种物质构成的。 细胞!你的整个身体都是由细胞组成的，从你的头到你的脚趾!有些生物只有一个细胞。 其他生物有许多细胞。 cell这个词和sell这个词听起来是一样的。

Too Small to See Cells are very small! We need help to see them. A microscope (MY-kro-skope) is a machine that makes small things look big. People use microscopes to look at things they cannot see with just their eyes.

细胞是非常小的!我们需要帮助才能看到它们。 显微镜(MY-kro-skope)是一种使小物体看起来很大的机器。 人们用显微镜来观察用眼睛看不见的东西。

Tiny Creatures An amoeba (uh-MEE-buh) is a tiny living thing. It is made of just one cell. You can only see an amoeba with a microscope. It looks like a blob of jelly!

阿米巴变形虫是一种微小的生物。 它只由一个细胞组成。 只有在显微镜下才能看到变形虫。 它看起来像一团果冻!

So Many Cells! Larger animals have many kinds of cells. Some cells are round and wide. Some cells are long and thin. Each cell has a job to do. Its size and shape help the cell do its job. Do You Know? There are about two hundred different kinds of cells in the human body!

这么多细胞!较大的动物有很多种细胞。 有些细胞又圆又宽。 有些细胞又长又薄。 每个细胞都有自己的工作。 它的大小和形状帮助细胞完成它的工作。 你知道吗?人体内大约有两百种不同的细胞!

Blood Cells Blood moves to different parts of the body. Animals have red and white blood cells. Red blood cells are thin and can bend. They carry a gas called oxygen (OK-sih-jun). White blood cells come in different shapes and sizes. White blood cells help keep animals from getting sick.

血液流动到身体的不同部位。 动物有红细胞和白细胞。 红细胞很薄，可以弯曲。 它们携带一种叫做氧气的气体(OK-sih-jun)。 白细胞有不同的形状和大小。 白细胞有助于防止动物生病。