Plants are very important living things.As we know，life could not go on if there were no plants（1）

because

because

they can make food from air，water and sunlight.Men and animals（2）

can't

can't

（can） make food from air，water and sunlight.They get energy by（3）

eating

eating

（eat） plants and other animals.So we all need plants to live.This is the （4）

reason

reason

['ri：zn] why we find that there are so many plants around us.
   If you look（5）

carefully

carefully

（careful） at the plants，you will find that there are two types of plants：flowering plants and no-flowering plants.
   Flowering plants can make seeds（种子）.The fruits（6）

protect

protect

[prə'tekt] the seeds.Some fruits have one seed，some have two，three（7）

or

or

four，and some have many seeds.But a few fruits have no seeds at all.An example of a fruit（8）

without

without

seeds is the banana fruit.Most non-flowering plants do not grow from seeds.They grow from spores（胚芽）.Spores are very small.Some spores are（9）

so

so

small and light that they can float（漂浮） in the air.We may say that spores are quite the same as seeds.When these spores are all in the wet and（10）

dark

dark

[da：k] places，they usually grow into new plants.