首页
登录
职称英语
[originaltext] A new study says a widely-used insecticide is damaging wild b
[originaltext] A new study says a widely-used insecticide is damaging wild b
游客
2023-06-30
66
管理
问题
A new study says a widely-used insecticide is damaging wild bee populations.(1)Wild bees are important, because they pollinate(授粉)crops and wild plants. Environmentalists in the United States and Europe say this insecticide is causing a drop in the number of bees.
These insecticides are among the most commonly-used worldwide. Farmers often use seeds treated with the insecticides. The chemicals target insects that eat crops, and they do not spread beyond the field. But they do get into pollen(花粉)and nectar(花蜜), which is where the bees come into contact with them. Researchers studied bees in fields. They say there were about half as many wild bees per square meter in treated fields as in untreated ones. Using the chemicals too much may be hurting bees.(2)They suggest that the chemicals should be used more sensibly, or, in other words, only when necessary.
Questions 1 and 2 are based on the news report you have just heard.
1. Why are wild bees important?
2. What is researchers’ suggestion on using chemicals?
选项
A、They are rare species.
B、They protect the environment.
C、They pollinate crops and wild plants.
D、They protect crops and wild plants.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2796168.html
相关试题推荐
[originaltext]M:Ifwedecidedtotaketheapartment,howsooncouldwemovein
[originaltext]M:Ifwedecidedtotaketheapartment,howsooncouldwemovein
[originaltext]M:Ifwedecidedtotaketheapartment,howsooncouldwemovein
[originaltext]M:YoucanteachJiminamorepleasantway.You’llspoilhisapp
[originaltext]M:YoucanteachJiminamorepleasantway.You’llspoilhisapp
[originaltext]M:YoucanteachJiminamorepleasantway.You’llspoilhisapp
[originaltext]M:YoucanteachJiminamorepleasantway.You’llspoilhisapp
[originaltext]W:Simon,couldyoureturnthetoolsIlentyouforbuildingthe
[originaltext]W:Simon,couldyoureturnthetoolsIlentyouforbuildingthe
[originaltext]W:Simon,couldyoureturnthetoolsIlentyouforbuildingthe
随机试题
Literatureisameansbywhichweknowourselves.Byitwemeet【M1
[img]2016m3x/ct_eyyjsbz2014j_eyyjsbreadc_0354_20163[/img]Guernicawasthel
[originaltext]M:Hey,Sally.I’mthinkingaboutgoingtoGermanythissummer,a
[originaltext]IntheUnitedStatesmanyparentsteachtheirchildrenathom
隧道仰拱宜超前拱墙二次衬砌,其超前距离宜保持()倍以上衬砌循环作业长度。A:1
雨期施工时,生产设施应设的地点有()。A、洪水位以上地点 B、最高洪水位以
中央性颌骨骨髓炎X线表现为A.下颌骨体有大小不等的多房阴影B.下颌骨内有单房阴影
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
社会评价报告中的社会影响分析内容应当从()几个层次展开。A.国家 B.省级
HLA分子属于A.异嗜性抗原 B.同种异型抗原 C.异种抗原 D.共同抗原
最新回复
(
0
)