5．Every living thing on Earth is either a plant or an animal，right？Wrong!Many organisms（有机体）in our world are neither．Some of them float through the air，and some lie hidden in the ground．They do not need sunlight to survive，and if the weather becomes too cold，they can become inactive until conditions improve．
What are these？They are called fungi（菌类），and you see them almost every day．Many kinds of fungi seem disgusting，such as the green black things that appear on the food which are left too long in the refrigerator．But other kinds are not so bad．For example，the yeast that is used to make bread and mushrooms （蘑菇） are both fungi．
What makes fungi different from plants and animals？An animal can move around by itself．Fungi get around too，but they don't have feet，wings，or tails．They have to wait for wind or some other outside force to move them．Plants are different from fungi because they have chlorophyll（叶绿素）．It helps them make food from the energy in sunlight．Fungi do not have chlorophyll．
Some fungi are bad，while others are not．Some fungi cause diseases，such as athlete's foot，which makes feet uncomfortable．Other kinds of fungi can be used to make medicines，which have saved many lives．
Fungi clean up more than wounds，though．They are the world's first recyclers．Without fungi，our world would be a mess．Since fungi cannot make their own food as plants do，they must get their food elsewhere．Many fungi get their food from dead plants．They break them down and turn them into soil．The fungi get a meal，and the world gets a housecleaning．
23．What does the underlined word"disgusting"most probably mean？B
A．strong
B．unpleasant
C．active
D．small
24．According to the passage，D．
A．fungi can move everywhere by themselves
B．fungi are unable to survive in cold conditions
C．some fungi can make food from the energy in sunlight．
D．some fungi are useful to humans and the environment
25．Where can you most probably find this passage？B
A．In a social report．
B．In a biology book．
C．In geography magazine．
D．In a farming book．
分析 文章大意：这是一篇日常文化类阅读，主要介绍地球上除了动物和植物以外，还有很多有机体，其中真菌就是其中之一，很多菌类很恶心，但是有一些对我们的生活是有益的，比如酵母来做面包，蘑菇等．菌类可以用来治疗和挽救人们的生命，清理地球等，如果没有真菌我们的世界将是一片混乱．
解答 23．答案：B．词意猜测题．A强壮的．B讨厌的．C积极的．D小的．根据后面such as the green black things that appear on the food which are left too long in the refrigerator．比如在冰箱里留太久的食物上出现的绿色黑色的东西．可知，应该是很多菌类看起来"令人厌恶的"，选B．
24．答案：D．细节理解题．根据倒数第二行Other kinds of fungi can be used to make medicines，which have saved many lives．其他种类的真菌可以用来做药，从而挽救了许多人的生命．及最后一段第二行They break them down and turn them into soil．The fungi get a meal，and the world gets a house cleaning它们分解它们．变为土壤．真菌得到一顿饭，世界有了一个大扫除．可知，有些菌类对人类和环境有益．选D．
25．答案：B．文章来源题．A在一份社会报告中．B在生物学书中．C在一个地理杂志．D在一本农业书中．短文主要介绍菌类的种类，及对人们和地球的影响．因此应该是来源于生物书中，选B．
点评 阅读题型，要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解．根据所给问题选择正确选项完成试题．
