When we think of plants, most of us will think of the things that grow from the

When we think of plants, most of us willthink of the things that grow from the ground and have leaves, but there areplants that do not look or act like other plants．Some of these belong to a special class ofplants called fungi(真菌).

    Fungi may appear almosteverywhere．They commonly grow in damp places where they can get food and watereasily．Because fungido not have green leaves, they can not make food for themselves．Green plants use their leaves tomake their own food, but fungi must take their food from animals, other plantsor waste matter．Some fungi live on dead or rotting wood, while others grow on livingtrees or in dirt or moss.

    Mushrooms are thebest-known fungi．There are many kinds of mushrooms in all shapes and sizes．For example, cauliflower mushroomsare found in forests from July to October．They can grow to be as heavy as fifty pounds!They commonly grow at the foot of trees.

    Squirrel’s bread is anotherkind of wild mushroom．Its appearance and use explain the origin (起源) of its name．These fungi, look like small golden cakes,grow on short, fat stems．Squirrels can easily nibble (啃) them or carry them off to their nests toeat later.

    The mushrooms found in foodstores are carefully grown by people who know they are safe to eat． Mushroom experts warn peoplenever to touch or taste wild mushrooms because some of them are deadly．Even less dangerous ones stillmake a person very sick.

1．Fungi usually grow in damp places________.

A．and no one ever knows why

B．because they can make food forthemselves there

C．where they can get water and foodeasily

D．and nowhere else

2．Green plants can ________.

A．be safely observed by the growers

B．easily make their own food

C．live on rotting wood or in dirt

D．be found only in the wild

3．People should avoid eating wildfungi because they might ________.

A．do great harm to their health

B．taste very bitter

C．give out a special unpleasantsmell

D．make them tired and sleepy

4．Mushrooms bought from the storeswill be safe to eat because they ________.

A．have the dangerous parts taken out

B．are really fungi

C．are the only fungi that look safe

D．are especially grown by experts

试题答案

答案：C;B;A;D