关于七年级英语知识点汇总
提高学习效率并非一朝一夕之事,需要长期的探索和积累。前人的经验是可以借鉴的,但必须充分结合自己的特点。下面是小编为大家精心整理的关于七年级英语知识点汇总，希望对大家有所帮助。
重点句式及注意事项：
1. 他正在干什么? What is he doing?
他正在吃饭。 He is eating dinner.
他正在哪里吃饭? Where is he eating dinner?
他正在家里吃饭。 He is eating dinner at home.
2. 你想什么时候去? When do you want to go?
让我们六点钟去吧。 Let’s go at six o’clock.
3. 他正在等什么? What is he waiting for?
他正在等公交车。 He is waiting for a bus.
4. 他们正在和谁说话? Who are they talking with?
他们正在和Miss Wu说话。 They are talking with Miss Wu.
5. 你们正在谈论什么? What are you talking about?
我们正在谈论天气。 We are talking about the weather.
6. 他们都正在去上学。 They are all going to school.
7. 这儿是一些我的照片。 Here are some of my photos.
这儿是一些肉。 Here is some of meat. (some of meat不可数，故用is)
8. 谢谢你帮我买这本书。 Thank you for helping me buy this book.
9. family 家;家庭。强调“整体”，是单数;强调“成员”时，是复数。 His family has a shower. 他们家有一个淋浴。 His family are watching TV. 他全家在看电视。
单数句变复数句
1. 可数名词单数要变为其相应的复数形式。
It is a box.→ They are boxes.
2. 各个人称代词要由单数形式变为复数形式。
She is a girl.→ They are girls. I am at home.→ We are at home.
3. am或is 要变为are.
He is a teacher. → They are teachers.
4. 指示代词this或that要分别变为these或those。
This is a pencil.→ These are pencils.
5. 不定冠词a/an要去掉(固定搭配例外)。
It is a black cat.→ They are black cats.
6. man或 woman做定语修饰可数名词，在整个句子变成复数的情况下也要变成 men或women.
She is a woman teacher.→ They are women teachers.
注意：在单数句变复数句时，普通单数变为复数形式，但当名词修饰名词时，起修饰作用的名词不做变化。名词修饰名词常用单数。(man, woman除外)
be动词的用法
be动词有三种变形，分别是：am, is, are。记忆口诀：
“我”用am, “你”用are, is用于“他、她、它”;单数全都用is，复数全部都用are。
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