pesticide
A chemical substance used to kill or control pests that are harmful to crops, livestock, or humans. It is an umbrella term that includes insecticides, herbicides, and fungicides used widely in agriculture and gardening.
例句
3 / 5I'm looking for a natural pesticide to get rid of the aphids on my roses.
I'm looking for a natural pesticide to get rid of the aphids on my roses.
The government has recently banned the use of a highly toxic pesticide known to harm bees.
The government has recently banned the use of a highly toxic pesticide known to harm bees.
I try to buy organic because I don't like the idea of my food being covered in pesticides.
I try to buy organic because I don't like the idea of my food being covered in pesticides.
词族
记忆技巧
Remember that the suffix '-cide' comes from Latin 'caedere', meaning 'to kill' (like homicide or suicide). Combine 'pest' + 'cide' to get 'pest killer'.
快速测验
Many consumers choose organic produce to avoid consuming ____ residue found on non-organic fruits.
正确！
正确答案是： pesticide
例句
I'm looking for a natural pesticide to get rid of the aphids on my roses.
everydayI'm looking for a natural pesticide to get rid of the aphids on my roses.
The government has recently banned the use of a highly toxic pesticide known to harm bees.
formalThe government has recently banned the use of a highly toxic pesticide known to harm bees.
I try to buy organic because I don't like the idea of my food being covered in pesticides.
informalI try to buy organic because I don't like the idea of my food being covered in pesticides.
Substantial evidence suggests that excessive pesticide runoff can lead to the contamination of local water supplies.
academicSubstantial evidence suggests that excessive pesticide runoff can lead to the contamination of local water supplies.
The agribusiness sector is investing heavily in the development of more targeted, less harmful pesticide formulas.
businessThe agribusiness sector is investing heavily in the development of more targeted, less harmful pesticide formulas.
词族
常见搭配
常用短语
pesticide resistance
pesticide resistance
pesticide runoff
pesticide runoff
broad-spectrum pesticide
broad-spectrum pesticide
容易混淆的词
A herbicide specifically targets weeds and plants, whereas a pesticide is a general term for killing any pests, including insects.
Fertilizers are used to help plants grow by providing nutrients, while pesticides are used to kill things that harm plants.
使用说明
The word is almost always used in the context of farming or gardening. While it can be a singular noun, it is very frequently used in the plural (pesticides) when discussing general environmental issues or food safety.
常见错误
Learners often use 'pesticide' when they specifically mean 'insecticide'. While technically correct, being specific (like herbicide or fungicide) is better in technical contexts.
记忆技巧
Remember that the suffix '-cide' comes from Latin 'caedere', meaning 'to kill' (like homicide or suicide). Combine 'pest' + 'cide' to get 'pest killer'.
词源
Formed in the late 19th century from 'pest' (an annoying or harmful thing) and the suffix '-cide' (killer).
语法模式
文化背景
In many developed nations, there is a strong cultural movement toward 'organic' food, which is primarily defined by the absence of synthetic pesticides.
快速测验
Many consumers choose organic produce to avoid consuming ____ residue found on non-organic fruits.
正确！
正确答案是： pesticide
相关词汇
Pollution refers to the introduction of harmful materials in...
organicRefers to food, materials, or substances produced without th...
toxinA toxin is a poisonous substance produced within living cell...
agricultureAgriculture is the science, art, and practice of cultivating...
ecosystemA biological community of interacting organisms and their ph...
相关词
to
A1Used to indicate the place, person, or thing that someone or something moves toward. It can also mark the recipient of an action or the limit of a range.
and
A1A primary conjunction used to connect words, phrases, or clauses that are grammatically equal. It indicates addition, a sequence of events, or a relationship between two things.
a
A1A word used before a singular noun that is not specific or is being mentioned for the first time. It is used only before words that begin with a consonant sound to indicate one of something.
that
A1This word is a demonstrative pronoun used to indicate a specific person, object, or idea that is further away in space or time from the speaker. It is also used to refer back to something that has already been mentioned or to introduce a clause that identifies something.
I
A1The pronoun 'I' is used by a speaker or writer to refer to themselves as the subject of a verb. It is the first-person singular subject pronoun in English and is always capitalized regardless of its position in a sentence.
for
A1Used to show who is intended to have or use something, or to explain the purpose or reason for an action. It is also frequently used to indicate a specific duration of time.
not
A1A function word used to express negation or denial. It is primarily used to make a sentence or phrase negative, often following an auxiliary verb or the verb 'to be'.
with
A1A preposition used to indicate that people or things are together, in the same place, or performing an action together. It can also describe the instrument used to perform an action or a characteristic that someone or something has.
he
A1A pronoun used to refer to a male person or animal that has already been mentioned or is easily identified. It functions as the subject of a sentence.
you
A1Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.
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