12．Most people have heard the sound of bees among flowers．Bees live almost everywhere in the world except in the Arctic areas．
Many kinds of agriculture depend on these small，social insects．Without bees，fruit and nut growers as well as many other farmers would not have a crop．
There are more than 20，000kinds of bees．But only honey bees make enough honey for people to use．Honeybees are highly-organized social insects．They work together in a group，called a colony（群體）．Each colony lives in a hive（蜂房）．It contains one queen bee--she lays all the eggs from which the members of the colony come．Each colony has only a few hundred males，called drones．The majority of all bees in a colony are workers，which are all females．
Bees even have a special stomach，called a honey stomach，which is used to store sweet fluid that the bees gather from flowers．Bees also have long hairs on their body and legs．These hairs capture pollen（花粉） as bees go from flower to flower．Some of the pollen is taken back to the hive．Some，however，is passed to the next flower．This is how many plants are fertilized．Pollen is the reproductive material of plants．Many important agricultural crops depend on bees for fertilization．
Inside their hives，bees store sweet liquid from flowers and pollen as well．They may even gather sweet liquid from some other kinds of insects．These kinds of sweet liquid are also stored in the hive．
Bees make honey through a process．They add liquid from their own mouths to sweet liquid into simple sugar．As the honey is stored，it dries．It becomes thicker and darker．
Although bees are often thought of as honey makers，they provide a surprising number of products．Also，their greatest economic value is in fertilizing crops-not in making honey．
67．The passage is mainly aboutC．
A．bees and their colony
B．the way for bees to pass pollen
C．bees and agriculture
D．the process for bees to make honey
68．Honeybees are social insects becauseA．
A．they work in groups
B．there is queen bee in every colony
C．they live in a hive
D．each of them does the same job
69．The most valuable thing honeybees do for people is inB．
A．making honey
B．fertilizing crops
C．making flowers grow better
D．producing pollen
70．The word"fertilize"in the sentence"This is how many plants are fertilized．"probably means"D"．
A．to make plants strong and productive
B．to make soil rich for plants
C．to start the development of young flowers
D．to introduce pollen into plants．
分析 本文主要介紹了蜜蜂這一昆蟲，它們高度社會化，分工明確．盡管蜜蜂釀蜜是公認的用途，但它們真正的價值在于為農作物授粉，沒有蜜蜂，大量農作物都不會有收獲．
解答 67．C．主旨歸納題．本文介紹了蜜蜂這一昆蟲的習性以及它們在釀蜜，授粉方面的貢獻．故選C，蜜蜂與農業(yè)．
68．A．細節(jié)理解題．注意到第三段"Honeybees are highly-organized social insects．They work together in a group"，honeybees是有高度組織的社會化的昆蟲，它們組隊進行工作．故選A．
69．B．細節(jié)理解題．第四段最后一句"Many important agricultural crops depend on bees for fertilization"許多重要的農作物都依賴與蜜蜂去授粉，因此這是蜜蜂對人類最有益的事情．故選B．
70．D．詞義推測題．根據(jù)劃線詞前文中"These hairs capture pollen as bees go from flower to flower．Some of the pollen is taken back to the hive．Some，however，is passed to the next flower．"這些蜜蜂在花叢間游走，它們的毛發(fā)把花粉傳播到本朵或者另一朵花上．這是植物如何授粉的過程，即劃線詞應為授粉之意，故選D．
點評 本篇科教類題的英語閱讀理解，考生首先要仔細閱讀首段和尾段，找出與中心思想有關的內容，在把握文章主旨下進行閱讀．看選項時要抓住選項中強調的內容，尋找原文中對應內容理解做題．
