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
2024-02-01
20
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、Chemicals should be used as many as possible.
B、Chemicals should be used only if necessary.
C、Chemicals should be used as few as possible.
D、Chemicals should be used once a month.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3412435.html
相关试题推荐
[originaltext](24)Anewstudyhasfoundevidenceofaggressivebehaviorin
[originaltext]Inthepast,youngpeopleinAmericausuallylivedwiththeir
[originaltext]Inthepast,youngpeopleinAmericausuallylivedwiththeir
[originaltext]Today,millionsofpeoplerunintheUnitedStates.Manymore
[originaltext]Today,millionsofpeoplerunintheUnitedStates.Manymore
[originaltext]W:Wheredoyouthinkweshouldgoontheholidaythissummer?M:
[originaltext]M:Guesswhatcameinthemailtoday?W:What?M:Myacceptancel
[originaltext]M:Guesswhatcameinthemailtoday?W:What?M:Myacceptancel
[originaltext]M:Guesswhatcameinthemailtoday?W:What?M:Myacceptancel
[originaltext]M:Hi,Jane,doyouhavesomechange?Ihavetomakeacallonth
随机试题
Itisnotsurprising,【C1】______thelackoffitbetweengiftedstudentsandtheir
BargainbookshoppersmusthavebeenpleasedlookingatAmazon’sbestseller
[originaltext]Aperson’ssocialprestigeseemstobedeterminedmainlybyh
土地权利的内容包括( )。A.占有 B.使用 C.收益 D.处分 E.
根据《2017届预算定额》,某工程土方项目,采用机械挖运湿土,相应项目人工系数为
关于无菌检查叙述错误的是A.此项检查属于无菌制剂的制剂通则检查 B.每批培养基
女性,45岁,偶然发现左乳房肿块,直径约2cm,质较硬、无压痛,与皮肤有少许粘连
诸葛亮27岁作《隆中对》,出为军师;基辛格从哈佛大学教授直接进入白宫成为美国的重
下列关于民事诉讼地域管辖的说法中,正确的有()。A.因侵权行为提起的诉讼,由
呼吸衰竭的血气诊断标准是A.动脉血氧含量低于9mmol/L B.动脉血氧饱和度
最新回复
(
0
)