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. They get their food by eating plants and other animals. If you look carefully at plants around you, you will find there are two kinds of plants: flowering plants and non-flowering plants.
Flowering plants can make seeds(种子). The seeds are guarded by the fruits. Some fruits have one seed, some have two, three or four, and some have many. 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(胚芽). Spores are very small. Some spores are 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 on wet and sandy places, they usually grow into plants.

The main idea of the first paragraph is that _____________.

A．plants are important for life

B．plants cannot grow without air

C．there are many plants in the world.

D．we can not live without water.

From Paragraph 2, we know there is(are) _______ kind(s) of plants around us.

A．four

B．three

C．two

D．one

In paragraph 3, the underlined word “guarded” most probably means ____________.

A．offered	B．protected
C．produced	D．saved

According to the underlined sentence“Most non-flowering plants do not grow from seeds”, the following statements are wrong EXCEPT ___________.

A．All the plants grow from seeds.

B．No flowering plants grow from seeds.

C．Only non-flowering plants grow from seeds.

D．A few of non-flowering plants grow from seeds.