七年级下册知识点英语外研版翻译

七年级下册知识点英语外研版翻译As a student of the seventh grade, you are expected to acquire knowledge in various subjects. In English, you will need to learn different grammar structures, vocabulary, and expressions. Here are some essential knowledge points for the second semester of the seventh grade, which will be useful for you in your future English studies.
1. Past Simple Tense
The past simple tense is used to describe an action that happened at a specific time in the past. The pattern for forming the past simple tense is to add “-ed” to the base form of regular verbs. For irregular verbs, you need to memorize their past tense forms. For example, the past simple tense of “eat” is “ate”.
2. Modal Verbs
Modal verbs are auxiliary verbs that express modality, which refers to the degree of possibility, probability, or necessity of an event. The most common modal verbs are “can”, “could”, “may”, “might”, “must”, “shall”, “should”, “will”, and “would”. They can be used to express
different meanings and functions, such as ability, permission, obligation, advice, suggestion, prediction, etc.
3. Adjectives
Adjectives are words that describe or modify nouns or pronouns. They can express different qualities, such as size, shape, color, texture, personality, etc. Adjectives can be placed before or after the nouns they modify. When there are multiple adjectives that modify the same noun, they usually follow a specific order: opinion – size – age – shape –color – origin – material – purpose.
4. Present Continuous Tense
The present continuous tense is used to describe an action that is happening at the moment of speaking, or is in progress around the time of speaking. The pattern for forming the present continuous tense is to add “-ing” to the base form of verbs, and to use the appropriate form of the auxiliary verb “to be”. For example, “I am eating a sandwich” or “He is reading a book”.
5. Prepositions
Prepositions are words that show the relationship between a noun or pronoun and other words in a sentence. Common prepositions include “at”, “in”, “on”, “to”, “by”, “with”, “for”, “from”, “until”, “since”, “before”, “after”, etc. Prepositions can indicate location, time, cause, manner, etc.
6. Comparatives and Superlatives
Comparatives and superlatives are forms of adjectives or adverbs that express the degree of comparison between two or more things. The comparative form is used to compare two things, and the superlative form is used to compare more than two things. The pattern for forming comparatives is to add “-er” to short adjectives, and to use “more” with long adjectives. The pattern for forming superlatives is to add “-est” to short adjectives, and to use “most” with long adjectives.
7. Reported Speech
Reported speech, also known as indirect speech, is used to report what someone else said, without using their exact words. The structure of reported speech usually involves: a reporting verb (such as “said” or “asked”), a reporting clause (such as “that” or “if”), a subject (usually
changed to match the reporting verb), and a verb (usually changed to match the tense in the reporting clause). For example, “She said that she was going to the store”.
These knowledge points are just the tip of the iceberg in your English studies. By mastering them, you will be able to communicate more effectively and confidently in English, and prepare yourself for more advanced language skills in the future.。