AllacrossCalifornia，honeybeesareflyingawayfromtheirhives（蜂箱）anddying．Emptyhivesarecausingalotofworryaboutsomeimportantfoodcrops．Beesgivesusalotdelicioushoney．Theyarepollinators（授粉昆虫）----theye

Question

All across California，honeybees are flying away from their hives（蜂箱） and dying．Empty hives are causing a lot of worry about some important food crops．
Bees gives us a lot delicious honey．They are pollinators（授粉昆虫）----they enable plants to produce the fruits and nuts we enjoy by carrying pollen from one plant or flower to the next．The wind pollinates oats，corn，and wheat，but many other plants （like apple and cherry trees and melon vines） depend on insects，bat，and birds．In the U．S．，millions and millions of bees kept by human beekeepers fly around doing a lot of this important work for food crops．"Bees are worth protecting because their work adds so much to our diet．"says Dr．Jeff Pettis of the Bee Research Laboratory．
California's almond crop alone depends on about half the bees in the country．But now the almond crop and many others could be in trouble with so many bees dying．
Researchers at government and university labs all over the country are trying to figure out why so many bees are dying．However，bees are hard to study．Most die away from the hive，so researchers don't have dead bodies to examine．And when researchers return to a hive after two weeks，about half the bees they studied on their first visit will be dead，replaced by new ones in the natural life cycle of bees．"It isn't like studying a large animal like a cow that doesn't move around much and is easy to find out in the cow field，"says Pettis．
Researchers have some ideas about what could be affecting bees'health．They could be sick because of poisons widely used to kill insects，or they might not be getting enough good food to stay strong．Also，tiny insects called mites feed on bees．"A virus or bacteria could also be doing the killing，"explains Pettis．
32．What is Paragraph 2 mainly about？___
A．The wind helps pollinate．
B．Bees are important for food crops．
C．Bees give us a lot of delicious honey．
D．Cherry trees are pollinated by bees．
33．Bees are hard to study because___．
A．they move around too much．
B．new bees soon replace all the bees studied by researchers．
C．they are too tiny．
D．they never return to hives．
34．What could cause so many bees to die？___
A．Poisons to kill birds．
B．Eating too much．
C．Large insects．
D．Some virus．
35．What can we learn from the article？___
A．A large number of bees have died in the hive．
B．Without bees，some food would disappear from our diet．
C．Only researchers in California want to know what kills bees．
D．Large animals are mo re difficult to study than tiny insects．

Answer 1

32．B推理判断题．文章第二段They are pollinators（授粉昆虫）----they enable plants to produce the fruits and nuts we enjoy by carrying pollen from one plant or flower to the next．The wind pollinates oats，corn，and wheat，but many other plants （like apple and cherry trees and melon vines） depend on insects，bat，and birds．介绍了蜜蜂除了给人们提供蜂蜜以外，还可以帮助植物授粉，由此判断B选项正确．
33．A 细节理解题．根据文章第四段Pettis说的话"It isn't like studying a large animal like a cow that doesn't move around much and is easy to find out in the cow field，"可知蜜蜂难以观察的原因是它们不会呆在固定的地方，所以A选项正确．
34．D细节理解题．根据文章末段"A virus or bacteria could also be doing the killing．"一种细菌造成了蜜蜂的死亡，可以判断D选项正确．
35．B推理判断题．根据文章第三段可知某些植物必须依靠蜜蜂授粉，所以如果没有蜜蜂这些植物将不会结果实，由此判断B选项正确．