题目内容
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(群体).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 本文主要介绍了蜜蜂这一昆虫,它们高度社会化,分工明确.尽管蜜蜂酿蜜是公认的用途,但它们真正的价值在于为农作物授粉,没有蜜蜂,大量农作物都不会有收获.
解答 67.C.主旨归纳题.本文介绍了蜜蜂这一昆虫的习性以及它们在酿蜜,授粉方面的贡献.故选C,蜜蜂与农业.
68.A.细节理解题.注意到第三段"Honeybees are highly-organized social insects.They work together in a group",honeybees是有高度组织的社会化的昆虫,它们组队进行工作.故选A.
69.B.细节理解题.第四段最后一句"Many important agricultural crops depend on bees for fertilization"许多重要的农作物都依赖与蜜蜂去授粉,因此这是蜜蜂对人类最有益的事情.故选B.
70.D.词义推测题.根据划线词前文中"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."这些蜜蜂在花丛间游走,它们的毛发把花粉传播到本朵或者另一朵花上.这是植物如何授粉的过程,即划线词应为授粉之意,故选D.
点评 本篇科教类题的英语阅读理解,考生首先要仔细阅读首段和尾段,找出与中心思想有关的内容,在把握文章主旨下进行阅读.看选项时要抓住选项中强调的内容,寻找原文中对应内容理解做题.
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