初中英语课外辅导：介词 for 的用法小结
Preposition is an important part of English grammar and it plays a vital role in sentence construction. One of the most commonly used prepositions in English is "for". In this tutorial, we will summarize the various uses and functions of the preposition "for".
1. Indicating purpose or objective:
The preposition "for" is frequently used to indicate the purpose or objective of an action or event. For example:
- I bought a present for my friend's birthday.
- I am studying hard for the exam.
- He goes to the gym for physical fitness.
2. Expressing duration or length of time:
Another important use of "for" is to express the duration or length of time in a sentence. For example:
- She has been waiting for her friend for two hours.
- They will stay in the hotel for a week.
- I have been learning English for three years.
3. Showing recipient or beneficiary:
The preposition "for" can also be used to show the recipient or beneficiary of an action. For example:
represent的用法
- I made this cake for you.
- He painted a picture for his mother.
- Could you buy some groceries for me?
4. Indicating exchange or substitution:
"For" is often used to express exchange or substitution of something in a sentence. For example:
- I traded my old bicycle for a new one.
- She gave me her book in exchange for mine.
- He lent me his pen for my pencil.
5. Representing opinion or attitude:
The preposition "for" can be used to represent opinion or attitude towards a person or thing. For example:
- I am happy for you.
- They are sorry for their mistake.
-
She is grateful for your help.
6. Expressing comparison or contrast:
"for" can also be used to express comparison or contrast between two things. For example:
- The price for this book is higher than that one.
- The weather in summer is hotter than in winter.
- She is taller for her age.
These are some of the main uses and functions of the preposition "for" in English. It is important to understand and use them correctly in order to convey the intended meaning in a sentence.
However, it is worth noting that prepositions in English can be quite flexible and their meanings can change based on the context of the sentence. Therefore, it is always recommended to refer to reliable sources and consult a grammar guide for a comprehensiv
e understanding of prepositions and their usage. Practice and exposure to different English texts and conversations will also help in mastering the correct uses of prepositions in various contexts.
Overall, the preposition "for" is a versatile word that serves multiple purposes in English grammar. Understanding its usage will enhance your English language skills and improve your overall communication abilities. Keep practicing and incorporating these uses of "for" in your daily conversations and writings, and you will become more confident and proficient in English!

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